From fred at redhotpenguin.com  Thu Mar  5 08:53:54 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 5 Mar 2009 08:53:54 -0800
Subject: [sf-perl] Fwd: [pm_groups] Nordic Perl Workshop 2009: Registration
	open!
In-Reply-To: <alpine.DEB.1.00.0903021553450.32330@decibel.pvv.ntnu.no>
References: <alpine.DEB.1.00.0903021547570.32330@decibel.pvv.ntnu.no>
	<alpine.DEB.1.00.0903021553450.32330@decibel.pvv.ntnu.no>
Message-ID: <ad28918e0903050853j721321cck370bd7289eb5d63a@mail.gmail.com>

This is a great small conference.  Having been to it (as a speaker and
listener) I highly recommend it.


---------- Forwarded message ----------
From: Salve J Nilsen <sjn+oslo.pm at pvv.org>
Date: Mon, Mar 2, 2009 at 6:55 AM
Subject: [pm_groups] Nordic Perl Workshop 2009: Registration open!
To: pm_groups at pm.org


Hi!

Registration to Nordic Perl Workshop 2009 is open!

? http://www.perlworkshop.no/npw2009/register

The schedule is looking good, the organizers are excited, and the
payment system will come online as soon as the Act admins come back
from vacation. If you want to be sure you get a T-shirt, please
register before April 1st.

See you in Oslo!


Regards,

- Salve J. Nilsen (NPW'09 orga)

--
#!/usr/bin/perl
sub AUTOLOAD{$AUTOLOAD=~/.*::(\d+)/;seek(DATA,$1,0);print# ?Salve Joshua Nilsen
getc DATA}$"="'};&{'";@_=unpack("C*",unpack("u*",':4@,$'.# ? ? <sjn at foo.no>
'2!--"5-(50P%$PL,!0X354UC-PP%/0\`'."\n"));eval "&{'@_'}"; ? __END__ is near! :)
--
Request pm.org Technical Support via support at pm.org

pm_groups mailing list
pm_groups at pm.org
http://mail.pm.org/mailman/listinfo/pm_groups

From fred at redhotpenguin.com  Thu Mar  5 08:57:07 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 5 Mar 2009 08:57:07 -0800
Subject: [sf-perl] Fwd: [pm_groups] Call for Mentors - Google Summer of Code
In-Reply-To: <200903032210.58462.scratchcomputing@gmail.com>
References: <200903032210.58462.scratchcomputing@gmail.com>
Message-ID: <ad28918e0903050857w7d589da5q9d9314696b7fdf4d@mail.gmail.com>

---------- Forwarded message ----------
From: Eric Wilhelm <scratchcomputing at gmail.com>
Date: Tue, Mar 3, 2009 at 10:10 PM
Subject: [pm_groups] Call for Mentors - Google Summer of Code
To: pm_groups at pm.org
Cc: Jonathan Leto <jaleto at gmail.com>


Hi all,

Please forward this to your local perl mongers lists.

Jonathan has a signup form ready for those who would like to offer their
availability to mentor for The Perl Foundation in this year's Google
Summer of Code.

?http://bit.ly/Hht5E

For more information, please see the following link or mail Jonathan.

http://leto.net/dukeleto.pl/2009/03/gsoc-2009-mentor-signup-form-go.html

Thanks,
Eric
--
"It works better if you plug it in!"
--Sattinger's Law
---------------------------------------------------
? ?http://scratchcomputing.com
---------------------------------------------------
--
Request pm.org Technical Support via support at pm.org

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pm_groups at pm.org
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From fred at redhotpenguin.com  Thu Mar  5 08:56:10 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 5 Mar 2009 08:56:10 -0800
Subject: [sf-perl] Fwd: [Announce] Call For Papers extended for ApacheCon US
	2009
In-Reply-To: <49AF56F9.3030308@apache.org>
References: <20081107200919.29573.44373@eos.apache.org>
	<49AF56F9.3030308@apache.org>
Message-ID: <ad28918e0903050856w74297ec9i50ad044078c6e485@mail.gmail.com>

ApacheCon is in Oakland this year.  Great opportunity to go to the
hackathon at the very least.


---------- Forwarded message ----------
From: William A. Rowe, Jr. <wrowe at apache.org>
Date: Wed, Mar 4, 2009 at 8:37 PM
Subject: [Announce] Call For Papers extended for ApacheCon US 2009
To: committers at apache.org


If you have only 30 seconds to read this;

Join us in celebrating the ASF's 10th Anniversary at ApacheCon!

The Call for Papers is has been extended for ApacheCon US 2009, taking place
2-6 November in Oakland, California. ?Proposals are being accepted at
http://us.apachecon.com/c/acus2009/cfp/ and can be revised at anytime until
the revised closing deadline of 14 March 2009 at 12:00 GMT.

In addition, sponsorship opportunities for both ApacheCon Europe 2009
in Amsterdam and ApacheCon US 2009 in Oakland are both still available.
Please contact Delia Frees at delia at apachecon.com for further information.

Please, read on...

*******

ApacheCon Celebrates the ASF's 10th Anniversary in Oakland, California,
2-6 November 2009

Call for Papers Opens for ApacheCon US 2009

The Apache Software Foundation (ASF) invites submissions to its official
user and developer conference, taking place 2-6 November 2009 at the Oakland
Convention Center and Marriott Hotel. ApacheCon serves as a forum for
showcasing the ASF's latest projects, members, and community initiatives.
Offering unparalleled educational opportunities, ApacheCon's presentations,
hands-on trainings, and sessions address key technology, development,
business/community, and licensing issues in Open Source.

The wide range of activities offered at ApacheCon promotes the exchange of
ideas amongst ASF Members, committers, innovators, developers, vendors, and
users interested in the future of Open Source technology. The conference
program includes peer-reviewed sessions, trainings/workshops, and select
invited keynote presentations and speakers.

Conference Themes and Topics

Building on ten years of success, ApacheCon returns to the Bay Area for the
10th anniversary of the Apache Software Foundation. Comprising some of the
most active and recognized developers in the Open Source community,
ApacheCon provides an influential platform for dialogue between Open Source
developers and users, traversing a wide range of ideas, expertise, and
personalities.

ApacheCon welcomes submissions across many fields, geographic locations, and
areas of development. The breadth of the Apache community lends itself to
conference content that is somewhat loosely-structured, with common themes
of interest addressing groundbreaking technologies and emerging trends, best
practices (from development to deployment), case studies and lessons learned
(tips, tools, and tricks). In addition, ApacheCon will continue to offer its
highly popular, two-day intensive trainings; certifications of completion
will be distributed to those who fulfill all the training requirements.

Topics appropriate for submission are manifold, and may include but are not
restricted to: Apache HTTP server (installation, configuration, migration,
and more); ASF-wide projects (including Lucene, Hadoop, Jackrabbit, and
Maven); Scripting languages and dynamic content (such as Java, Perl, Python,
Ruby, XSL, and PHP); Security and e-commerce (performance tuning, load
balancing and high availability); New technologies (including broader
initiatives such as Web Services and Web 2.0); ASF-Incubated projects (such
as Sling, UIMA, and Shindig); and Business/Community issues (Open Source
driven business models, open development, enterprise adoption, and more).

Submission Guidelines

Submissions must include; ? Session title - Speaker name - Speaker biography
- Session description - Format and duration - Audience expertise level

Full details are available online on the CFP page at [WWW]
http://us.apachecon.com/c/acus2009/cfp/

Types of Presentations; - Trainings/Workshops - General Sessions - Case
Studies/Industry Profiles - Corporate Showcases & Demonstrations - Fast
Feather (short) sessions - Birds of a Feather discussions - Invited
Keynotes/Panels/Speakers

Pre-Conference Trainings/Workshops

Held on the first two days of the conference (2-3 November 2009), ApacheCon
trainings are available at a registration fee beyond the regular conference
fee. Proposals may be submitted for half-day (3 hours), full-day (6 hours),
or two-day (12 hours) training sessions. These proposed tutorials should be
aimed at providing in-depth, hands-on development experience or related
continuing education. Training submissions are welcome at beginner,
intermediate, and expert levels.

General Sessions include presentations on practical development
applications, insight into high-interest projects, best practices and key
advances, overcoming implementation challenges, and industry innovations.
Especially welcome are submissions that extend participants' understanding
the role of ASF projects and their influence on the Open Source community at
large. General Sessions are scheduled for 50 minutes and are accessible to
all conference delegates.

Case Study/Industry Profile

Practitioners are invited to submit presentations that focus on how
implementing particular ASF technologies led to improved products/solutions,
service offerings, changes in work practices, among other successes.
Proposals that highlight overcoming interesting challenges in application
design and developing innovative frameworks using multiple ASF projects are
particularly encouraged. NOTE: Marketing-oriented submissions aimed at
promoting specific organizations or products will not be accepted.

Invited Keynotes/Panels/Speakers

Each conference the ApacheCon Planning team invites select presenters
dealing with engaging, dialectical, and challenging subjects to present in
keynote and/or panel formats. Topics include cutting-edge technology
development, industry leadership, hot or emerging trends, opinions on
controversial issues, insight on technology paradigms, and contrasting
viewpoints in complementary professional areas. Those interested in
suggesting a candidate for an invited speaker opportunity should submit a
brief proposal with the speaker's name, affiliation, background/bio,
overview of topics of interest, and contact information.

Birds of a Feather (BoF) sessions and Fast Feather Track talks are selected
by separate processes, nearer to the beginning of the conference.

Proposals are now being accepted at http://us.apachecon.com/c/acus2009/cfp/
and can be revised at anytime until the revised closing deadline of
14 March 2009 at 12:00 GMT.

In addition, sponsorship opportunities for both ApacheCon Europe 2009
in Amsterdam and ApacheCon US 2009 in Oakland are both available. Please
contact Delia Frees at delia at apachecon.com for further information.

ApacheCon US 2009 is co-produced by the Apache Software Foundation and Stone
Circle Productions. The ApacheCon Planning team comprises ASF Members from
all over the world working on a wholly-volunteer basis. For more
information, visit http://us.apachecon.com/c/acus2009/

From fred at redhotpenguin.com  Thu Mar  5 13:42:51 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 5 Mar 2009 13:42:51 -0800
Subject: [sf-perl] Fwd: Newsletter from O'Reilly UG Program, March 5
In-Reply-To: <LYRIS-10209813-63269-2009.03.05-12.47.19--fred#redhotpenguin.com@newsletter.oreilly.com>
References: <LYRIS-10209813-63269-2009.03.05-12.47.19--fred#redhotpenguin.com@newsletter.oreilly.com>
Message-ID: <ad28918e0903051342i4df8841dna25042857be164d1@mail.gmail.com>

Today is announcement day, yay


---------- Forwarded message ----------
From: Marsee Henon <marsee at oreilly.com>
Date: Thu, Mar 5, 2009 at 12:47 PM
Subject: Newsletter from O'Reilly UG Program, March 5
To: fred at redhotpenguin.com


Hi there,

I hope you're enjoying your spring. We've had a month of much needed
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In this increasingly competitive job market, having top-of-the-line
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Currently we offer 35% off with code DSUG on books, ebooks, and
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Looking for even more info about our authors? ?We've just created a
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<http://fyi.oreilly.com/2009/02/calling-all-oreilly-authors--n.html>


--Marsee

================================================================
O'Reilly UG Program News--Just for User Group Leaders
March 5, 2009
================================================================
Put Up a Banner, Get a Free Book

We're looking for user groups to display our discount banners on their
web sites. If you send me your group's site with one or more banners,
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================================================================
O'Reilly News for User Group Members
March 5, 2009
================================================================
---------------------------------------------------------------
New Releases--Books, Short Cuts, and Rough Cuts
----------------------------------------------------------------
Get 35% off from O'Reilly, No Starch, Paraglyph, PC Publishing,
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Subscribe at:
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================================================
Upcoming Author Events
================================================
For more events, please see:
<http://events.oreilly.com/>

Lesa Snider King at Geek Girl Camp
Mar?7, 2009
Cape Cod Community College
Hyannis, MA
Author Lesa Snider King (Photoshop CS4: The Missing Manual) presents her
digital photography and Photoshop Elements workshop "How to Shoot & Edit
Like a Pro". She's also teaching "Graphic Secrets for Presenters" which
focuses on how to give better presentations by telling your story
through pictures, and how to use Photoshop or Elements to turn the
imagery you have into the imagery you need.
<http://geekgirlcamp.com/>


Joshua-Michele Ross Featured on "Press:Here"
Mar?8, 2009
Joshua-Michele Ross will be featured on "Press:Here," joined by John Schwarz
from USA Today and Sarah Lacey from Business Week and Yahoo. The topic
will be on Twitter--exploring questions such as what is the value of
Twitter to you personally, professionally, and to your brand.
<http://www.pressheretv.com>


Dean Wampler at SD West
Mar?10-12, 2009
Santa Clara Convention Center
Santa Clara, CA
Author Dean Wampler (co-author of Programming Scala) is teaching a
tutorial on "The Seductions of Scala" and a class on "Better Ruby
through Functional Programming" at SD West 2009. The tutorial is March
10th and the class is March 12th.
<https://www.cmpevents.com/SDw9/a.asp?option=G&V=3&id=447368>


Nancy Duarte Presenting at the Forum for Women Entrepreneurs &
Executives
Mar?11, 2009
Menlo Park, CA
Nancy Duarte (slide:ology) will be presenting at the Forum for Women
Entrepreneurs & Executives (FWE&E). You'll gain insights into story
structures and the power that a well developed and delivered
presentation can have.
<http://www.fwe.org/index.cfm?fuseaction=Calendar.eventDetail&eventID=144>


QCon London 2009
Mar?11-13, 2009
The Queen Elizabeth II Conference Centre
London, UK
The third annual London enterprise software development conference
designed for team leads, architects and project management is back!
There is no other event in the UK with similar opportunities for
learning, networking, and tracking innovation occurring in the Java,
.NET, Ruby, SOA, Agile, and architecture communities. Madness and fun!
<http://qconlondon.com/>


Lesa Snider King at Geek Girl Camp
Mar?12, 2009
Lombardo's
Randolph, MA
Author Lesa Snider King (Photoshop CS4: The Missing Manual) presents her
digital photography and Photoshop Elements workshop "How to Shoot & Edit
Like a Pro". She's also teaching "Graphic Secrets for Presenters" which
focuses on how to give better presentations by telling your story
through pictures, and how to use Photoshop or Elements to turn the
imagery you have into the imagery you need.
<http://www.geekgirlcamp.com/>


Ken Lunde at Worldware Conference
Mar?17-19, 2009
Hilton Santa Clara
Santa Clara, CA
Author Ken Lunde (CJKV Information Processing) presents "GB 18030 ?
Regional Challenges in Internationalizing Software."
<http://www.worldwareconference.com/>


Wendy Chisholm and Matt May at SXSW
Mar?17, 2009
Room Day Stage, Austin Convention Center
Austin, TX
Authors Wendy Chisholm and Matt May read from and discuss Universal
Design for Web Applications.
<http://sxsw.com/interactive/talks/schedule?action=show&id=IAP0901357>


Nancy Duarte Speaks at presentation//reboot
Mar?17-19, 2009
Duarte Design, 161 E. Evelyn Ave.
Mountain View, CA
Nancy Duarte (slide:ology) and Garr Reynolds host a six-hour seminar on
presentations. This seminar will transform you into a creative thinker
and change the way you prepare, design, and deliver your next
presentation. Choose from three different days, and register now--space
is limited.
<http://www.presentationreboot.com/>


Bill Scott at Mix09
Mar?18-20, 2009
The Venetian
Las Vegas, NV, USA
Author Bill Scott (Designing Web Interfaces: Principles and Patterns for
Rich Interaction) will be presenting "Interactive Prototyping with
DHTML."
<http://2009.visitmix.com/>


Nancy Duarte Honored at Silicon Valley's 2009 Women of Influence Awards
Mar?18, 2009
The Fairmont Hotel
San Jose, CA
Silicon Valley/San Jose Business Journal and El Camino Hospital will
recognize 100 outstanding women who exercise power and influence within
business, government, or nonprofits in Silicon Valley, and serve as role
models for future generations of leaders. Among the honorees is Nancy
Duarte, author of slide:ology. Registration is mandatory.
<http://www.bizjournals.com/sanjose/event/5433>


Stephen Johnson Gives a Class on Hands-on Digital Black and White
Printing
Mar?19-22, 2009
Stephen Johnson Studios & Gallery
Pacifica, CA
Join Stephen Johnson (Stephen Johnson on Digital Photography) in his
studio for four days of hands-on printing instruction.
<http://www.sjphoto.com/print_wkspHO_frameset.html>


Dux Raymond Sy presents "7 Ways to Leverage SharePoint for Project
Management Success"
Mar?23, 2009
Sheraton Inner Harbor, Baltimore, MD, USA
Dux Raymond Sy (SharePoint for Project Management) will present "7 Ways
to Leverage SharePoint for Project Management Success" at the SharePoint
Conference.ORG. Acquire the practical knowledge of how SharePoint can
address common project management challenges such as Inefficient
communication among stakeholders, poor document management practices,
and undefined project collaboration standards that can compromise
project success.
<http://www.sharepointconference.org/>

Lesa Snider King at Photoshop World Boston
Mar?25, 2009
Hynes Convention Center, Boston, MA
Lesa Snider King (Photoshop CS4: The Missing Manual) presents "Graphic
Secrets: Combining Photos & Vectors." Learn how to easily combine
illustrations with photography in this super creative session. Glean the
secret to importing vectors into your document so you can experiment
with them as backgrounds, artful embellishments, ornamental photo
frames, and more -- all without losing an ounce of quality!
<http://www.photoshopworld.com/bonus.html>


Dux Raymond Sy presents: "Empowering Your Organization with SharePoint:
An Executive Seminar"
Mar?30, 2009
Learning Tree Alexandria Education Center
Alexandria, VA
Over the course of one day, SharePoint expert Dux Raymond Sy (SharePoint
for Project Management) will detail the benefits SharePoint can deliver
to your organization through a combination of lecture, presentations and
demonstrations. This comprehensive, non-technical overview is designed
to help you assess how SharePoint Technologies can have a positive
effect on your company?s productivity and competitiveness.
<http://go.meetdux.com/4czq>


"Using Drupal" Authors Present Lullabot Drupal Workshops
Mar?30-Apr?3, 2009
Biltmore Hotel, Providence, RI
Authors James Walker, Jeff Robbins, Angie Byron, and Nate Haug (Using
Drupal) will be leading a week of Drupal workshops in Providence, RI.
<http://www.lullabot.com/training>


================================================
Conferences and Special Events
================================================

User Group Discount Information for our upcoming conferences:


Last Chance--Emerging Technology Conference 2009
March 9-12, 2009
San Jose, CA

Use code "et09usrg" when you register, and receive an additional 30% off
the registration price.

To register for the conference, go to:
<http://en.oreilly.com/et2009/public/register?CMP=ILC-conf_etech09&amp;ATT=UG>

---


O'Reilly Found, The Search Acquisition and Architecture Conference
June 9-11, 2009
Burlingame, CA

Use code "fo09usrg" when you register, and receive 15% off
the registration price. Early registration ends on April 21.


To register for the conference, go to:
<https://en.oreilly.com/found/public/register>


---

Velocity 2009
June 22-24, 2009
San Jose, CA


Use code "vel09usrg" when you register, and receive 15% off
the registration price. Early registration ends on May 3.


To register for the conference, go to:
<https://en.oreilly.com/velocity2009/public/register>

---


RailsConf 2009
Co-presented by O'Reilly Media and Ruby Central
May 4-7, 2009
Las Vegas, NV

Use code "rc09usrg" when you register, and receive 10% off
the registration price. Early registration ends on March 16.

To register for the conference, go to:
<https://en.oreilly.com/rails2009/public/register>


---

Where 2.0 Conference 2009
May 19-21, 2009
San Jose, CA

Use code "whr09usrg" when you register, and receive 15% off
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To register for the conference, go to:
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---

MySQL Conference & Expo
Co-presented by O'Reilly Media and MySQL
April 20-23, 2009
Santa Clara, CA

Use code "mys09usrg" when you register, and receive 15% off
the registration price.

To register for the conference, go to:
<https://en.oreilly.com/mysql2009/public/register/?ATT=EM6&CMP=EMC-conf_my09_UG1>

---

Web 2.0 Expo San Francisco
Co-presented by O'Reilly Media and TechWeb
March 31-April 3, 2009
San Francisco, CA

Use code "websf09ugp" when you register, and receive 15% off
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To register for the conference, go to:
<https://en.oreilly.com/webexsf2009/public/register>


---

OSCON 2009
July 20-24, 2009
San Jose, CA

If you have ideas for speakers and topics please send them to:
oscon-idea at oreilly.com

<http://conferences.oreilly.com/oscon>

---

Ignite
If you had five minutes on stage what would you say? What if you only
got 20 slides and they rotated automatically after 15 seconds? Around
the world geeks have been putting together Ignite nights to show their
answers.

Create your own Ignite in your area
<http://ignite.oreilly.com/faq/how-to.html>

Upcoming Ignite events:

For more events, go to <http://ignite.oreilly.com/>


Events

Ignite Orlando
March 4, 2009
Slingapours, 27 Wall Street Plaza
Orlando, FL
<http://ignite.oreilly.com/2009/01/ignite-orlando-march-4-2009.html>

Ignite Reno 1
March 7, 2009
148 West St.
Reno, NV
<http://ignite.oreilly.com/2009/02/ignite-reno-1.html>

Ignite Denver 2
March 11, 2009
Forest Room 5
Denver, CO
<http://ignite.oreilly.com/2009/01/howdy-folks.html>

Announcing Ignite Spatial 2
March 11, 2009
52 King St
Sydney New South Wales, Australia
<http://ignite.oreilly.com/2009/02/announcing-ignite-spatial-2.html>

Ignite Boise
March 19, 2009
Egyptian Theater, 700 W. Main Street,
Boise, ID
<http://ignite.oreilly.com/2009/02/ignite-boise.html>

Ignite Salt Lake 2
March 26, 2009
677 South 200 West
Salt Lake City UT, USA
<http://ignite.oreilly.com/2009/01/ignite-salt-lake-2.html>


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Can Subversion help teams work better? Tell us and you could win one of
10 great prize packages!

Are you on a team that works with shared documents? If so, you know what
a headache version control can be. The good news is that there is a
remedy: Subversion, a simple yet powerful open-source document
management tool that streamlines the versioning process. O'Reilly,
Beanstalk, Versions, and CollabNet--four companies who make working
with Subversion even easier--want to hear your best stories about how
Subversion has or could help your team. Tell us your story by March 6,
2009 and enter to win one of 10 Prize Packages.
<http://svnpack.com/>


State of the Computer Book Market 2008

As described in Computer Book Sales as a Technology Trend Indicator, and
our other posts on the State of the Computer Book Market we have an
updated series of posts that show the whole market's final 2008 numbers.
<http://radar.oreilly.com/2009/02/state-of-the-computer-book-mar-17.html>

Part 2: The Technologies
<http://radar.oreilly.com/archives/2008/02/state-of-the-computer-book-mar-20.html>

Part 3: The Publishers
<http://radar.oreilly.com/archives/2008/03/state-of-the-computer-book-mar-21.html>

Part 4:The Languages
<http://radar.oreilly.com/2009/02/state-of-the-computer-book-mar-22.html>

Part 5: eBooks and Summary
<http://radar.oreilly.com/2009/02/state-of-the-computer-book-mar-24.html>


Why Kindle Should Be An Open Book

In O'Reilly Insights on Forbes.com, Tim O'Reilly boldly predicts that
"unless Amazon embraces open ebook standards like epub, which allow
readers to read books on a variety of devices, the Kindle will be gone
within two or three years." In the new column, O'Reilly explains why
he's thrown his support behind "epub and other open ebook standards,
providing our books as "ebook bundles" that give the reader the choice
of pdf (still the only viable choice for many highly formatted books
like our Head First series of "brain friendly" tutorials that even HTML
can't handle), epub, and mobi, an HTML-based predecessor to the Kindle
format that lacks digital rights management but that can be imported
into the Kindle."
<http://www.forbes.com/2009/02/22/kindle-oreilly-ebooks-technology-breakthroughs_oreilly.html>


Deke McClelland's Martini Hour Visualization Contest Details

The basic idea is simple; create a graphic that can be used to promote
Martini Hour that features some Deke, some Colleen, and some Martini or
other refreshing beverage. You can use the raw materials we have posted
in the dekeOnline Flickr group. Or you can use anything you like.
(Remember, Deke likes costumes and weapons.)
<http://www.deke.com/content/martini-hour-visualization-contest-details>


Twitter Drives Traffic, Sales: A Case Study

Back in December, Dell reported that offers from its Dell Outlet Twitter
account had led to more than $1 million in revenue. A small percentage
for a company that books $16B in revenue annually--but a nice number
nonetheless, particularly in a dreary economy. Question is: are they the
only ones?
<http://radar.oreilly.com/2009/02/twitter-drives-traffic-sales-a.html>


Call For Makers: Maker Faire Bay Area 2009

We are now accepting entries for the Maker Faire Bay Area, May 30 and 31
at the San Mateo County Expo Center. This year's focus is Re-Make
America, inspired by President Obama's call for all of us to participate
in remaking America. We're looking to showcase "the risk-takers, the
doers, the makers of things."
<http://makerfaire.com/bayarea/2009/callformakers/>


Sneak Peek at iWork '09 & Share Your Tips Contest

Currently available as a Rough Cut, the new book will teach you
everything you need to know about Apple's incredible productivity
programs, including the Pages word-processor, the Numbers spreadsheet,
and the Keynote presentation program that Al Gore and Steve Jobs made
famous. Read an excerpt from Josh Clark's work in progress, (adapted for
the web). Then, take a minute to share an iWork '09 tip and you could
win free access to iWork '09: The Missing Manual: Rough Cuts Version.
<http://fyi.oreilly.com/2009/02/sneak-peek-at-iwork-09-the-mis.html>


What You'll Find in "Ruby Best Practices"

When Ruby Best Practices first entered roughcuts, Gregory Brown passed
on a couple copies to some reviewers to see what they thought, and Peter
Cooper summed things up pretty accurately.
<http://blog.majesticseacreature.com/archives/2009.02/whats_in_rbp.html>

And here's a sample chapter "Mastering the Dynamic Toolkit" in PDF:
<http://bit.ly/cNL3J>


Ignite Launches Weekly Video Series Highlighting the Best of Geek
Culture

Ignite captures the best of geek culture in a series of five-minute
speed presentations on topics ranging from "The Best Way to Buy a Car"
to "Hacking Chocolate" to "Transhuman Technology Trends." Imagine that
you're on stage in front of an audience of hundreds of people, doing a
five-minute presentation using a slide deck that auto-forwards every 15
seconds, whether you're ready or not. What would you do? What would you
say? Could you stand the pressure? Every week, find out how some of the
smartest minds on the planet dealt with this situation as your host,
Brady Forrest, highlights a different talk from Ignites around the
world.
<http://fyi.oreilly.com/2009/02/ignite-launches-weekly-video-s.html>


Safari Books Online Optimizes for Top Mobile Devices

Safari Books Online Ubiquitous for Users On-the-Go
Safari Books Online is now fully optimized to support the top mobile
devices in the United States. The new website, m.safaribooksonline.com,
optimizes Safari Books Online's content and reading experience for the
majority of mobile phones (such as Nokia, BlackBerry, iPhone, and
Windows Mobile), making it possible for users to read while on-the-go.
<http://www.safaribooksonline.com/Corporate/NewsEvents/pressReleaseDetail.php?page=2009_02_23>


ETech Preview: Creating Biological Legos

If you've gotten tired of hacking firewalls or cloud computing, maybe
it's time to try your hand with DNA. That's what Reshma Shetty is doing
with her Doctorate in Biological Engineering from MIT. Apart from her
crowning achievement of getting bacteria to smell like mint and bananas,
she's also active in the developing field of synthetic biology and has
recently helped found a company called Gingko BioWorks which is
developing enabling technologies to allow for rapid prototyping of
biological systems.
<http://radar.oreilly.com/2009/02/etech-preview-creating-biologi.html>


ETech Preview: Inside Factory China, An Interview with Andrew Huang

China has become the production workhorse of the consumer electronics
industry. Almost anything you pick up at a Best Buy first breathed life
across the Pacific Ocean. But what is it like to shepherd a product
through the design and production process? Andrew "bunnie" Huang has
done just that with the Chumby, a new internet appliance.
<http://radar.oreilly.com/2009/02/etech-preview-inside-factory-c.html>


Until next time--

Marsee Henon


================================================================
O'Reilly
1005 Gravenstein Highway North
Sebastopol, CA ? 95472
800-998-9938
http://ug.oreilly.com/
Follow us on Twitter at http://twitter.com/OReillyMedia

You are receiving this email because you are a User Group
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receiving these newsletters or announcements from O'Reilly,
send an email to marsee at oreilly.com
================================================================

From fred at redhotpenguin.com  Thu Mar  5 13:44:31 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 5 Mar 2009 13:44:31 -0800
Subject: [sf-perl] YAPC::NA 2009 CFP
Message-ID: <ad28918e0903051344n61af7168w878c6f1dc67a9624@mail.gmail.com>

This should be a good one, Pittsburgh is a strong group.

http://yapc10.org/yn2009/cfp.html

From fred at redhotpenguin.com  Thu Mar  5 13:51:57 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 5 Mar 2009 13:51:57 -0800
Subject: [sf-perl] The Idioms of March
Message-ID: <ad28918e0903051351rb216a31n59058ab9bf33269d@mail.gmail.com>

For March people usually think of Ides, but for this group I'm going
to propose the Idioms of March instead.

Bring your favorite idiom to the March meeting and win a prize.  There
will be ( scalar(@prizes) == 3 ), all geekworthy.  Idiom that gets the
most votes wins.


Here's an example idiom I saw yesterday, retweeting http://twitter.com/schwern.

Clever and simple way to get the last N elements of a list. @last =
@foo[-$n..-1];


Don't forget to register for the meetup!

http://www.meetup.com/San-Francisco-Perl-Mongers/calendar/9442341/

From andy at petdance.com  Thu Mar  5 13:55:23 2009
From: andy at petdance.com (Andy Lester)
Date: Thu, 5 Mar 2009 15:55:23 -0600
Subject: [sf-perl] The Idioms of March
In-Reply-To: <ad28918e0903051351rb216a31n59058ab9bf33269d@mail.gmail.com>
References: <ad28918e0903051351rb216a31n59058ab9bf33269d@mail.gmail.com>
Message-ID: <7E47A04E-3A05-4F0A-8BBD-D8141A8362E3@petdance.com>


On Mar 5, 2009, at 3:51 PM, Fred Moyer wrote:

> will be ( scalar(@prizes) == 3 ), all geekworthy.  Idiom that gets the


The idiomatic way to check that there are three elements is simply to  
take @prizes in scalar context, which doesn't require the scalar()  
keyword

	@prizes == 3

:-)

xoxo,
Andy


--
Andy Lester => andy at petdance.com => www.petdance.com => AIM:petdance




From extasia at extasia.org  Mon Mar  9 10:15:08 2009
From: extasia at extasia.org (David Alban)
Date: Mon, 9 Mar 2009 10:15:08 -0700
Subject: [sf-perl] perl and your career
Message-ID: <4c714a9c0903091015n4b3fdb14yd0e83704b2241b3c@mail.gmail.com>

---------- Forwarded message ----------
From: Jacqui Caren <jacqui.caren at ntlworld.com>
Date: Mon, Mar 9, 2009 at 10:03 AM
Subject: http://www.xkcd.com/519/
To: "London.pm Perl M[ou]ngers" <london.pm at london.pm.org>


Well, it made me smile.

http://www.xkcd.com/519/



-- 
Live in a world of your own, but always welcome visitors.

From fred at redhotpenguin.com  Thu Mar 12 21:47:36 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 12 Mar 2009 21:47:36 -0700
Subject: [sf-perl] Fwd: UG News: New O'Reilly Training: Master Classes in
	San Francisco
In-Reply-To: <LYRIS-10235312-63396-2009.03.12-14.29.19--fred#redhotpenguin.com@newsletter.oreilly.com>
References: <LYRIS-10235312-63396-2009.03.12-14.29.19--fred#redhotpenguin.com@newsletter.oreilly.com>
Message-ID: <ad28918e0903122147y4b9ffbb0rea5a5e51b9cca789@mail.gmail.com>

Looks like some good speakers here.  Has anyone read the high
performance websites book?

---------- Forwarded message ----------
From: Marsee Henon <marsee at oreilly.com>
Date: Thu, Mar 12, 2009 at 3:29 PM
Subject: UG News: New O'Reilly Training: Master Classes in San Francisco
To: fred at redhotpenguin.com


Hi

Can you share the following info with your group members if you think
they'll be interested (and you haven't already!). I've included a special
UG only discount code good for 25% off. If you've got an event calendar
and include outside events, we'd appreciate your help posting it there
too (or let me know if I can).

As usual, thanks for all your help. Please let me know
if you have any questions.

Marsee



New O'Reilly Training, Master Classes in San Francisco

In this increasingly competitive job market, having top-of-the-line
technical and management skills is critical. The good news is that you
can improve your skills and learn some new techniques that will make you
irreplaceable--without breaking the bank.

Right now user group members can save 25% on an O'Reilly Master class,
and learn directly from Scott Berkun on project management, Douglas
Crockford on JavaScript coding, and Steve Souders on improving web site
performance. Give your career a real boost--just go to
<http://training.oreilly.com> and use special offer code masterclassug
to register and save 25%. Register by March 15 and get an extra $50 off.
Everyone in the class receives $100 worth of O'Reilly books.

The first three one-day Master Classes on JavaScript, Creating High
Performance Web Sites, and Project Management are scheduled for March 30
in San Francisco.


Here are the details:


O'Reilly Master Class: Douglas Crockford, March 30, 2009,
San Francisco, CA
JavaScript: The Good Parts
Like most languages, JavaScript contains both good and bad parts. The
bad parts keep it from becoming an elegant, lightweight, and highly
expressive language. In this class, you'll discover good JavaScript you
can use to create truly extensible code. The author of "JavaScript: The
Good Parts," (O'Reilly Media), Crockford is a regular speaker at
conferences on advanced JavaScript topics. He serves on the JavaScript
2.0 committee at ECMA. Register by March 15 and get an extra $50 off.
Everyone in the class receives $100 worth of O'Reilly books.

1-day workshop, 9am-5pm, Mar. 30, $600
Mission Bay Conference Center
University of California, San Francisco (UCSF)
1675 Owens St.
San Francisco, CA 94143

For more information and to register:
Call: (707) 827-7000 / (800) 998-9938
http://training.oreilly.com/javascript

*******************************************

O'Reilly Master Class: Scott Berkun, March 30, 2009, San Francisco, CA
Leading and Managing Breakthrough Projects
Scott Berkun, author of the bestselling "The Myths of Innovation"
(O'Reilly Media) uses valuable insights from the past as well as
challenging in-class exercises to help you develop the leadership skills
and knowledge you need to manage innovative people and projects.
Register by March 15 and get an extra $50 off.
Everyone in the class receives $100 worth of O'Reilly books.


1-day workshop, 10am-5pm, Mar. 30, $600
Mission Bay Conference Center
University of California, San Francisco (UCSF)
1675 Owens St.
San Francisco, CA 94143

For more information and to register:
Call: (707) 827-7000 / (800) 998-9938
http://training.oreilly.com/projectmanagement

*******************************************

O'Reilly Master Class: Steve Souders, March 30, 2009, San Francisco, CA
Creating High Performance Web Sites
While working at Google and Yahoo!, Steve Souders developed rules that
cut up to 25% off response time for page requests. In this class,
Souders, the author of the bestselling O'Reilly book, "High Performance
Web Sites" (O'Reilly Media), explains those rules and shows you how you
can greatly improve the performance of your existing web pages.
Register by March 15 and get an extra $50 off.
Everyone in the class receives $100 worth of O'Reilly books.

1-day workshop, 9am-5pm, Mar. 30, $600
Mission Bay Conference Center
University of California, San Francisco (UCSF)
1675 Owens St.
San Francisco, CA 94143

For more information and to register:
Call: (707) 827-7000 / (800) 998-9938
http://training.oreilly.com/highperformancesites


================================================================
Marsee Henon
UG Manager
O'Reilly
1005 Gravenstein Highway North
Sebastopol, CA ? 95472
marsee at oreilly.com
800-998-9938
http://ug.oreilly.com/
Follow us on Twitter at http://twitter.com/OReillyMedia

You are receiving this email because you are a User Group
contact with O'Reilly Media. If you would like to stop
receiving these newsletters or announcements from O'Reilly,
send an email to marsee at oreilly.com
================================================================

From swartz at pobox.com  Fri Mar 13 05:21:46 2009
From: swartz at pobox.com (Jonathan Swartz)
Date: Fri, 13 Mar 2009 05:21:46 -0700
Subject: [sf-perl] Fwd: UG News: New O'Reilly Training: Master Classes
	in San Francisco
In-Reply-To: <ad28918e0903122147y4b9ffbb0rea5a5e51b9cca789@mail.gmail.com>
References: <LYRIS-10235312-63396-2009.03.12-14.29.19--fred#redhotpenguin.com@newsletter.oreilly.com>
	<ad28918e0903122147y4b9ffbb0rea5a5e51b9cca789@mail.gmail.com>
Message-ID: <360AB654-2543-4ACA-A21C-55E21B82BF4A@pobox.com>

Thanks for forwarding this Fred.

On this topic - does anyone have any recommendations for (or against)  
local classes in advanced javascript / ajax?

On Mar 12, 2009, at 9:47 PM, Fred Moyer wrote:

> Looks like some good speakers here.  Has anyone read the high
> performance websites book?
>
> ---------- Forwarded message ----------
> From: Marsee Henon <marsee at oreilly.com>
> Date: Thu, Mar 12, 2009 at 3:29 PM
> Subject: UG News: New O'Reilly Training: Master Classes in San  
> Francisco
> To: fred at redhotpenguin.com
>
>
> Hi
>
> Can you share the following info with your group members if you think
> they'll be interested (and you haven't already!). I've included a  
> special
> UG only discount code good for 25% off. If you've got an event  
> calendar
> and include outside events, we'd appreciate your help posting it there
> too (or let me know if I can).
>
> As usual, thanks for all your help. Please let me know
> if you have any questions.
>
> Marsee
>
>
>
> New O'Reilly Training, Master Classes in San Francisco
>
> In this increasingly competitive job market, having top-of-the-line
> technical and management skills is critical. The good news is that you
> can improve your skills and learn some new techniques that will make  
> you
> irreplaceable--without breaking the bank.
>
> Right now user group members can save 25% on an O'Reilly Master class,
> and learn directly from Scott Berkun on project management, Douglas
> Crockford on JavaScript coding, and Steve Souders on improving web  
> site
> performance. Give your career a real boost--just go to
> <http://training.oreilly.com> and use special offer code masterclassug
> to register and save 25%. Register by March 15 and get an extra $50  
> off.
> Everyone in the class receives $100 worth of O'Reilly books.
>
> The first three one-day Master Classes on JavaScript, Creating High
> Performance Web Sites, and Project Management are scheduled for  
> March 30
> in San Francisco.
>
>
> Here are the details:
>
>
> O'Reilly Master Class: Douglas Crockford, March 30, 2009,
> San Francisco, CA
> JavaScript: The Good Parts
> Like most languages, JavaScript contains both good and bad parts. The
> bad parts keep it from becoming an elegant, lightweight, and highly
> expressive language. In this class, you'll discover good JavaScript  
> you
> can use to create truly extensible code. The author of "JavaScript:  
> The
> Good Parts," (O'Reilly Media), Crockford is a regular speaker at
> conferences on advanced JavaScript topics. He serves on the JavaScript
> 2.0 committee at ECMA. Register by March 15 and get an extra $50 off.
> Everyone in the class receives $100 worth of O'Reilly books.
>
> 1-day workshop, 9am-5pm, Mar. 30, $600
> Mission Bay Conference Center
> University of California, San Francisco (UCSF)
> 1675 Owens St.
> San Francisco, CA 94143
>
> For more information and to register:
> Call: (707) 827-7000 / (800) 998-9938
> http://training.oreilly.com/javascript
>
> *******************************************
>
> O'Reilly Master Class: Scott Berkun, March 30, 2009, San Francisco, CA
> Leading and Managing Breakthrough Projects
> Scott Berkun, author of the bestselling "The Myths of Innovation"
> (O'Reilly Media) uses valuable insights from the past as well as
> challenging in-class exercises to help you develop the leadership  
> skills
> and knowledge you need to manage innovative people and projects.
> Register by March 15 and get an extra $50 off.
> Everyone in the class receives $100 worth of O'Reilly books.
>
>
> 1-day workshop, 10am-5pm, Mar. 30, $600
> Mission Bay Conference Center
> University of California, San Francisco (UCSF)
> 1675 Owens St.
> San Francisco, CA 94143
>
> For more information and to register:
> Call: (707) 827-7000 / (800) 998-9938
> http://training.oreilly.com/projectmanagement
>
> *******************************************
>
> O'Reilly Master Class: Steve Souders, March 30, 2009, San Francisco,  
> CA
> Creating High Performance Web Sites
> While working at Google and Yahoo!, Steve Souders developed rules that
> cut up to 25% off response time for page requests. In this class,
> Souders, the author of the bestselling O'Reilly book, "High  
> Performance
> Web Sites" (O'Reilly Media), explains those rules and shows you how  
> you
> can greatly improve the performance of your existing web pages.
> Register by March 15 and get an extra $50 off.
> Everyone in the class receives $100 worth of O'Reilly books.
>
> 1-day workshop, 9am-5pm, Mar. 30, $600
> Mission Bay Conference Center
> University of California, San Francisco (UCSF)
> 1675 Owens St.
> San Francisco, CA 94143
>
> For more information and to register:
> Call: (707) 827-7000 / (800) 998-9938
> http://training.oreilly.com/highperformancesites
>
>
> ================================================================
> Marsee Henon
> UG Manager
> O'Reilly
> 1005 Gravenstein Highway North
> Sebastopol, CA   95472
> marsee at oreilly.com
> 800-998-9938
> http://ug.oreilly.com/
> Follow us on Twitter at http://twitter.com/OReillyMedia
>
> You are receiving this email because you are a User Group
> contact with O'Reilly Media. If you would like to stop
> receiving these newsletters or announcements from O'Reilly,
> send an email to marsee at oreilly.com
> ================================================================
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm


From fred at redhotpenguin.com  Tue Mar 17 18:14:06 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Tue, 17 Mar 2009 18:14:06 -0700
Subject: [sf-perl] Idioms of March and Evolving Tests next Tuesday
Message-ID: <ad28918e0903171814taed170end1734535beb3c8f3@mail.gmail.com>

Remember to bring your favorite idiom!

http://sf.pm.org/weblog/

http://www.meetup.com/San-Francisco-Perl-Mongers/calendar/9442341/

From kenuhl at berkeley.edu  Wed Mar 18 16:01:40 2009
From: kenuhl at berkeley.edu (ken uhl)
Date: Wed, 18 Mar 2009 16:01:40 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
Message-ID: <49C17D54.9080908@berkeley.edu>


-------------- next part --------------
An embedded message was scrubbed...
From: ken uhl <kenuhl at berkeley.edu>
Subject: class DBI postgres date time format
Date: Tue, 17 Mar 2009 11:09:22 -0700
Size: 1716
URL: <http://mail.pm.org/pipermail/sanfrancisco-pm/attachments/20090318/56a37741/attachment.eml>

From biztos at mac.com  Thu Mar 19 00:14:19 2009
From: biztos at mac.com (Kevin Frost)
Date: Thu, 19 Mar 2009 00:14:19 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
In-Reply-To: <49C17D54.9080908@berkeley.edu>
References: <49C17D54.9080908@berkeley.edu>
Message-ID: <40C5276D-53D6-4E8B-89E2-FFB9316563D5@mac.com>

It looks like your "updated" column is mapped as a DateTime object  
(line 26).

You probably want to do something like this:

$delta_row->updated( DateTime->now() );

Further resources:

http://search.cpan.org/dist/DateTime/lib/DateTime.pm

http://search.cpan.org/dist/DateTime-Format-Pg/lib/DateTime/Format/Pg.pm

cheers

-- frosty

On Mar 18, 2009, at 4:01 PM, ken uhl wrote:

>
>
> From: ken uhl <kenuhl at berkeley.edu>
> Date: March 17, 2009 11:09:22 AM PDT
> To: beginners at perl.org
> Subject: class DBI postgres date time format
>
>
> How do I set up table class method to correctly format and write  
> 'updated'  column  date and time stamp to postgres?
>
> I have table entry object that contains this - to inflate and  
> deflate :
>
> I think I need to add  "has_timestamp"
> .....
>
>    22 __PACKAGE__->table('dhcpmac');
>    23 __PACKAGE__->columns( Primary => qw/rowid/ );
>    24 __PACKAGE__->columns( All => qw/rowid mac calnetuid updated  
> updatedby dynhostname ishmael disable/ );
>    25
>    26 __PACKAGE__->has_a( updated => 'DateTime',
>    27                     inflate => sub { DateTime::Format::Pg- 
> >parse_timestamptz(shift); },
>    28                     deflate => sub { DateTime::Format::Pg- 
> >format_timestamptz(shift); } );
>
> ...
>
> my CGI  does this :
>
> ...
> #  retrieve old row data    301          my $delta_row =  
> IST::DNSDB::dhcpmac->retrieve($old_rowid) ;
>   302          my $old_mac = $delta_row->mac();
> ...
> #  replace some of the data - including 'updated'
>   305          $delta_row->mac($new_validated_mac);
>   306              $delta_row->updated( "now()" );
> ..
>   308          $delta_row->updatedby($calnetuid);
> ...
>   313           $delta_row->update();
>   314           $delta_row->commit();
>
> ( line 306 crashes with invalid SQL command line value, obviously,  
> but what goes here? )
>
> ?
>
> TIA,
> Ken Uhl,
> UC Berkeley
>
>
>
>
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm

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From ddascalescu at gmail.com  Thu Mar 19 01:06:42 2009
From: ddascalescu at gmail.com (Dan Dascalescu)
Date: Thu, 19 Mar 2009 01:06:42 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
In-Reply-To: <49C17D54.9080908@berkeley.edu>
References: <49C17D54.9080908@berkeley.edu>
Message-ID: <3561cc6d0903190106n4bbcc53dlbc3c2aa6096b40fe@mail.gmail.com>

> How do I set up table class method to correctly format and write 'updated'
> ?column ?date and time stamp to postgres?

DBIx::Class::TimeStamp might take care of that automagicallly.

From biztos at mac.com  Thu Mar 19 01:23:26 2009
From: biztos at mac.com (Kevin Frost)
Date: Thu, 19 Mar 2009 01:23:26 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
In-Reply-To: <3561cc6d0903190106n4bbcc53dlbc3c2aa6096b40fe@mail.gmail.com>
References: <49C17D54.9080908@berkeley.edu>
	<3561cc6d0903190106n4bbcc53dlbc3c2aa6096b40fe@mail.gmail.com>
Message-ID: <390FC95E-C446-4E6C-ADE7-C6E9BEE20049@mac.com>

Is there a Class::DBI equivalent?

Of course you could just subclass Class::DBI and do it automatically  
for everything that has an "updated" column.  But for the same amount  
of effort you could learn DBIx::Class, so... :-)

-- f.

On Mar 19, 2009, at 1:06 AM, Dan Dascalescu wrote:

>> How do I set up table class method to correctly format and write  
>> 'updated'
>>  column  date and time stamp to postgres?
>
> DBIx::Class::TimeStamp might take care of that automagicallly.
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm


From fred at redhotpenguin.com  Thu Mar 19 01:37:08 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 19 Mar 2009 01:37:08 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
In-Reply-To: <49C17D54.9080908@berkeley.edu>
References: <49C17D54.9080908@berkeley.edu>
Message-ID: <ad28918e0903190137n55afc1cewf4cd5275436f505b@mail.gmail.com>

2009/3/18 ken uhl <kenuhl at berkeley.edu>:
>
>
> How do I set up table class method to correctly format and write 'updated'
> ?column ?date and time stamp to postgres?

With PostgreSQL you don't need to deflate an object if you just want
to mark the time the row was updated.

I have two columns, cts (creation time stamp) and mts (modification
time stamp).  cts gets set automatically when the row is inserted, and
mts updates to now() on subsequent updates via a trigger.

cts              | timestamp without time zone | default now()
mts              | timestamp without time zone | default now()

create or replace function update_modified_column() returns trigger as $$ BEGIN
NEW.mts = now();
return new;
END;
$$ language 'plpgsql';

create trigger update_table_mts BEFORE UPDATE ON router FOR EACH ROW
EXECUTE PROCEDURE update_modified_column();

Here's an actual record update, all I did was change a boolean in the record:

cts              | 2007-08-29 12:55:22.028357
mts              | 2008-08-12 11:58:37.77211

cts              | 2007-08-29 12:55:22.028357
mts              | 2009-03-19 00:43:54.714981


Granted, this approach involves no Perl, but TMTOWTDI, and row
modification creation and timestamping seems like something that
should be done in the database (although I need a trigger for each
table I track the cts and mts.  Modifying other date columns
represents a chance though to use object inflation and deflation in
Perl.

>
> I have table entry object that contains this - to inflate and deflate :
>
> I think I need to add ?"has_timestamp"
> .....
>
> ? ?22 __PACKAGE__->table('dhcpmac');
> ? ?23 __PACKAGE__->columns( Primary => qw/rowid/ );
> ? ?24 __PACKAGE__->columns( All => qw/rowid mac calnetuid updated updatedby
> dynhostname ishmael disable/ );
> ? ?25
> ? ?26 __PACKAGE__->has_a( updated => 'DateTime',
> ? ?27 ? ? ? ? ? ? ? ? ? ? inflate => sub {
> DateTime::Format::Pg->parse_timestamptz(shift); },
> ? ?28 ? ? ? ? ? ? ? ? ? ? deflate => sub {
> DateTime::Format::Pg->format_timestamptz(shift); } );
>
> ...
>
> my CGI ?does this :
>
> ...
> # ?retrieve old row data ? 301 ? ? ? ? ?my $delta_row =
> IST::DNSDB::dhcpmac->retrieve($old_rowid) ;
> ? 302 ? ? ? ? ?my $old_mac = $delta_row->mac();
> ...
> # ?replace some of the data - including 'updated'
> ? 305 ? ? ? ? ?$delta_row->mac($new_validated_mac);
> ? 306 ? ? ? ? ? ? ?$delta_row->updated( "now()" );
> ..
> ? 308 ? ? ? ? ?$delta_row->updatedby($calnetuid);
> ...
> ? 313 ? ? ? ? ? $delta_row->update();
> ? 314 ? ? ? ? ? $delta_row->commit();
>
> ( line 306 crashes with invalid SQL command line value, obviously, but what
> goes here? )
>
> ?
>
> TIA,
> Ken Uhl,
> UC Berkeley
>
>
>
>
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>
>

From biztos at mac.com  Thu Mar 19 01:55:24 2009
From: biztos at mac.com (Kevin Frost)
Date: Thu, 19 Mar 2009 01:55:24 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
In-Reply-To: <ad28918e0903190137n55afc1cewf4cd5275436f505b@mail.gmail.com>
References: <49C17D54.9080908@berkeley.edu>
	<ad28918e0903190137n55afc1cewf4cd5275436f505b@mail.gmail.com>
Message-ID: <558A5336-CF67-46BF-83EA-DABFB8C4CE10@mac.com>

Funny, I was almost going to mention triggers in my first response.

The nice thing about doing it in a trigger is there's no way to forget/ 
break the logic in your application.  The less-nice thing is that you  
have a performance hit per update, which can be a problem in high  
transaction volumes.  It's definitely something you'd want to  
benchmark (triggers vs. Perl w/DateTime vs. Perl w/o DateTime) if you  
expect to be doing a lot of updates.

Also, I would argue that in Fred's example the modified timestamp  
("mts") should not have a default value.  When you create a record but  
do not subsequently modify it, its modification timestamp should be  
NULL, so you can tell the difference.  This of course is highly  
impractical because you then have to remember about the NULLs in all  
your queries for the rest of your life, so it's an argument I often  
lose.

FWIW PostgreSQL is also pretty forgiving in its date casting, and for  
quick hacks and debugging you can often just skip the TO_DATE  
altogether.

And now back to our regularly scheduled Perl programming...

-- f.


On Mar 19, 2009, at 1:37 AM, Fred Moyer wrote:

> 2009/3/18 ken uhl <kenuhl at berkeley.edu>:
>>
>>
>> How do I set up table class method to correctly format and write  
>> 'updated'
>>  column  date and time stamp to postgres?
>
> With PostgreSQL you don't need to deflate an object if you just want
> to mark the time the row was updated.
>
> I have two columns, cts (creation time stamp) and mts (modification
> time stamp).  cts gets set automatically when the row is inserted, and
> mts updates to now() on subsequent updates via a trigger.
>
> cts              | timestamp without time zone | default now()
> mts              | timestamp without time zone | default now()
>
> create or replace function update_modified_column() returns trigger  
> as $$ BEGIN
> NEW.mts = now();
> return new;
> END;
> $$ language 'plpgsql';
>
> create trigger update_table_mts BEFORE UPDATE ON router FOR EACH ROW
> EXECUTE PROCEDURE update_modified_column();
>
> Here's an actual record update, all I did was change a boolean in  
> the record:
>
> cts              | 2007-08-29 12:55:22.028357
> mts              | 2008-08-12 11:58:37.77211
>
> cts              | 2007-08-29 12:55:22.028357
> mts              | 2009-03-19 00:43:54.714981
>
>
> Granted, this approach involves no Perl, but TMTOWTDI, and row
> modification creation and timestamping seems like something that
> should be done in the database (although I need a trigger for each
> table I track the cts and mts.  Modifying other date columns
> represents a chance though to use object inflation and deflation in
> Perl.
>
>>
>> I have table entry object that contains this - to inflate and  
>> deflate :
>>
>> I think I need to add  "has_timestamp"
>> .....
>>
>>    22 __PACKAGE__->table('dhcpmac');
>>    23 __PACKAGE__->columns( Primary => qw/rowid/ );
>>    24 __PACKAGE__->columns( All => qw/rowid mac calnetuid updated  
>> updatedby
>> dynhostname ishmael disable/ );
>>    25
>>    26 __PACKAGE__->has_a( updated => 'DateTime',
>>    27                     inflate => sub {
>> DateTime::Format::Pg->parse_timestamptz(shift); },
>>    28                     deflate => sub {
>> DateTime::Format::Pg->format_timestamptz(shift); } );
>>
>> ...
>>
>> my CGI  does this :
>>
>> ...
>> #  retrieve old row data   301          my $delta_row =
>> IST::DNSDB::dhcpmac->retrieve($old_rowid) ;
>>   302          my $old_mac = $delta_row->mac();
>> ...
>> #  replace some of the data - including 'updated'
>>   305          $delta_row->mac($new_validated_mac);
>>   306              $delta_row->updated( "now()" );
>> ..
>>   308          $delta_row->updatedby($calnetuid);
>> ...
>>   313           $delta_row->update();
>>   314           $delta_row->commit();
>>
>> ( line 306 crashes with invalid SQL command line value, obviously,  
>> but what
>> goes here? )
>>
>> ?
>>
>> TIA,
>> Ken Uhl,
>> UC Berkeley
>>
>>
>>
>>
>> _______________________________________________
>> SanFrancisco-pm mailing list
>> SanFrancisco-pm at pm.org
>> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>>
>>
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm


From david at fetter.org  Thu Mar 19 09:14:57 2009
From: david at fetter.org (David Fetter)
Date: Thu, 19 Mar 2009 09:14:57 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
In-Reply-To: <49C17D54.9080908@berkeley.edu>
References: <49C17D54.9080908@berkeley.edu>
Message-ID: <20090319161457.GB5359@fetter.org>

On Wed, Mar 18, 2009 at 04:01:40PM -0700, ken uhl wrote:
> How do I set up table class method to correctly format and write
> 'updated'  column  date and time stamp to postgres?

Table class?  From what module?  Just FYI, anything that's mapping
tables one-to-one with objects in client code is Doing It Wrong(TM).

Your best bet is to write SQL as appropriate.  This is a task people
are good at and machines will remain bad at until they are capable
making good choices about which abstraction level is appropriate, that
being a pretty serviceable definition of strong AI.

Cheers,
David.
-- 
David Fetter <david at fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fetter at gmail.com

Remember to vote!
Consider donating to Postgres: http://www.postgresql.org/about/donate

From matt at lanier.org  Thu Mar 19 10:30:30 2009
From: matt at lanier.org (Matthew Lanier)
Date: Thu, 19 Mar 2009 10:30:30 -0700 (PDT)
Subject: [sf-perl] how to add to @INC at perl build time?
Message-ID: <alpine.LFD.2.00.0903191028390.14007@aurora.cloudfactory.org>

hey folks-

i need to add a few paths to @INC while building perl, above and beyond 
the paths that you are allowed to set via '(priv|arch|vendor|...)lib'.

I know that you can set @INC at runtime, though that doesn't meet my 
needs.  any hints on how to add elements to @INC at perl build time?

thanks-

m@

-- 

Matthew D. P. K. Strelchun-Lanier

From doom at kzsu.stanford.edu  Thu Mar 19 11:27:51 2009
From: doom at kzsu.stanford.edu (Joe Brenner)
Date: Thu, 19 Mar 2009 11:27:51 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
In-Reply-To: <ad28918e0903190137n55afc1cewf4cd5275436f505b@mail.gmail.com>
References: <49C17D54.9080908@berkeley.edu>
	<ad28918e0903190137n55afc1cewf4cd5275436f505b@mail.gmail.com>
Message-ID: <200903191827.n2JIRp3J071941@kzsu.stanford.edu>


Fred Moyer <fred at redhotpenguin.com> wrote:

> Granted, this approach involves no Perl, but TMTOWTDI, and row
> modification creation and timestamping seems like something that
> should be done in the database (although I need a trigger for each
> table I track the cts and mts.

I do it almost exactly the same way (though I'm inclined to call the
columns "ctime" and "mtime").

And pl/pgsql seems like a better choice than pl/perl for something as
simple as this... though I don't know, maybe pl/perl is almost as
ubiquitous anyway.

You do need to do a

  CREATE LANGUAGE plpgsql;

before you can use pl/pgsql.


From doom at kzsu.stanford.edu  Thu Mar 19 11:29:54 2009
From: doom at kzsu.stanford.edu (Joe Brenner)
Date: Thu, 19 Mar 2009 11:29:54 -0700
Subject: [sf-perl] [Fwd: class DBI postgres date time format]
In-Reply-To: <558A5336-CF67-46BF-83EA-DABFB8C4CE10@mac.com>
References: <49C17D54.9080908@berkeley.edu>
	<ad28918e0903190137n55afc1cewf4cd5275436f505b@mail.gmail.com>
	<558A5336-CF67-46BF-83EA-DABFB8C4CE10@mac.com>
Message-ID: <200903191829.n2JITsps072001@kzsu.stanford.edu>


Kevin Frost <biztos at mac.com> wrote:

> Also, I would argue that in Fred's example the modified timestamp
> ("mts") should not have a default value.  When you create a
> record but do not subsequently modify it, its modification
> timestamp should be NULL, so you can tell the difference.  This
> of course is highly impractical because you then have to remember
> about the NULLs in all your queries for the rest of your life, so
> it's an argument I often lose.

I'm not sure I get the logic in any case.  Creation strikes me as a
kind of modification.


From not.com at gmail.com  Thu Mar 19 12:05:54 2009
From: not.com at gmail.com (yary)
Date: Thu, 19 Mar 2009 12:05:54 -0700
Subject: [sf-perl] how to add to @INC at perl build time?
In-Reply-To: <alpine.LFD.2.00.0903191028390.14007@aurora.cloudfactory.org>
References: <alpine.LFD.2.00.0903191028390.14007@aurora.cloudfactory.org>
Message-ID: <75cbfa570903191205o452f2539heb6a44f47159e677@mail.gmail.com>

On Thu, Mar 19, 2009 at 10:30 AM, Matthew Lanier <matt at lanier.org> wrote:
> hey folks-
>
> i need to add a few paths to @INC while building perl, above and beyond the
> paths that you are allowed to set via '(priv|arch|vendor|...)lib'.

I'll assume you really do mean building perl (and not "at my program's
compile time", where you'd use a BEGIN block or the -I command line
switch). I did build a perl with a custom INC years ago, let's see if
I can dig out the incantation...

aha, from INSTALL doc in perl's source:
===
As a final catch-all, Configure also offers an $otherlibdirs
variable. ?This variable contains a colon-separated list of additional
directories to add to @INC. ?By default, it will be empty.
Perl will search these directories (including architecture and
version-specific subdirectories) for add-on modules and extensions.

For example, if you have a bundle of perl libraries from a previous
installation, perhaps in a strange place:

? ? ? ?Configure -Dotherlibdirs=/usr/lib/perl5/site_perl/5.8.1
===

back to lunch,

-y

From kenuhl at berkeley.edu  Thu Mar 19 12:47:05 2009
From: kenuhl at berkeley.edu (ken uhl)
Date: Thu, 19 Mar 2009 12:47:05 -0700
Subject: [sf-perl] SanFrancisco-pm Digest, Vol 50, Issue 7
In-Reply-To: <mailman.23267.1237452937.29685.sanfrancisco-pm@pm.org>
References: <mailman.23267.1237452937.29685.sanfrancisco-pm@pm.org>
Message-ID: <49C2A139.60309@berkeley.edu>

Thanks everyone
my solution was from Frost :

$delta_row->updated( DateTime->now() );


Ken U
UCBerkeley

 




 esanfrancisco-pm-request at pm.org wrote:
> Send SanFrancisco-pm mailing list submissions to
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> Today's Topics:
>
>    1. [Fwd: class DBI postgres date time format] (ken uhl)
>    2. Re: [Fwd: class DBI postgres date time format] (Kevin Frost)
>    3. Re: [Fwd: class DBI postgres date time format] (Dan Dascalescu)
>    4. Re: [Fwd: class DBI postgres date time format] (Kevin Frost)
>    5. Re: [Fwd: class DBI postgres date time format] (Fred Moyer)
>    6. Re: [Fwd: class DBI postgres date time format] (Kevin Frost)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 18 Mar 2009 16:01:40 -0700
> From: ken uhl <kenuhl at berkeley.edu>
> Subject: [sf-perl] [Fwd: class DBI postgres date time format]
> To: perl beginners <sanfrancisco-pm at pm.org>
> Message-ID: <49C17D54.9080908 at berkeley.edu>
> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
>
>
> -------------- next part --------------
> An embedded message was scrubbed...
> From: ken uhl <kenuhl at berkeley.edu>
> Subject: class DBI postgres date time format
> Date: Tue, 17 Mar 2009 11:09:22 -0700
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>
> ------------------------------
>
> Message: 2
> Date: Thu, 19 Mar 2009 00:14:19 -0700
> From: Kevin Frost <biztos at mac.com>
> Subject: Re: [sf-perl] [Fwd: class DBI postgres date time format]
> To: San Francisco Perl Mongers User Group <sanfrancisco-pm at pm.org>
> Message-ID: <40C5276D-53D6-4E8B-89E2-FFB9316563D5 at mac.com>
> Content-Type: text/plain; charset="us-ascii"; Format="flowed";
> 	DelSp="yes"
>
> It looks like your "updated" column is mapped as a DateTime object  
> (line 26).
>
> You probably want to do something like this:
>
> $delta_row->updated( DateTime->now() );
>
> Further resources:
>
> http://search.cpan.org/dist/DateTime/lib/DateTime.pm
>
> http://search.cpan.org/dist/DateTime-Format-Pg/lib/DateTime/Format/Pg.pm
>
> cheers
>
> -- frosty
>
> On Mar 18, 2009, at 4:01 PM, ken uhl wrote:
>
>   
>> From: ken uhl <kenuhl at berkeley.edu>
>> Date: March 17, 2009 11:09:22 AM PDT
>> To: beginners at perl.org
>> Subject: class DBI postgres date time format
>>
>>
>> How do I set up table class method to correctly format and write  
>> 'updated'  column  date and time stamp to postgres?
>>
>> I have table entry object that contains this - to inflate and  
>> deflate :
>>
>> I think I need to add  "has_timestamp"
>> .....
>>
>>    22 __PACKAGE__->table('dhcpmac');
>>    23 __PACKAGE__->columns( Primary => qw/rowid/ );
>>    24 __PACKAGE__->columns( All => qw/rowid mac calnetuid updated  
>> updatedby dynhostname ishmael disable/ );
>>    25
>>    26 __PACKAGE__->has_a( updated => 'DateTime',
>>    27                     inflate => sub { DateTime::Format::Pg- 
>>     
>>> parse_timestamptz(shift); },
>>>       
>>    28                     deflate => sub { DateTime::Format::Pg- 
>>     
>>> format_timestamptz(shift); } );
>>>       
>> ...
>>
>> my CGI  does this :
>>
>> ...
>> #  retrieve old row data    301          my $delta_row =  
>> IST::DNSDB::dhcpmac->retrieve($old_rowid) ;
>>   302          my $old_mac = $delta_row->mac();
>> ...
>> #  replace some of the data - including 'updated'
>>   305          $delta_row->mac($new_validated_mac);
>>   306              $delta_row->updated( "now()" );
>> ..
>>   308          $delta_row->updatedby($calnetuid);
>> ...
>>   313           $delta_row->update();
>>   314           $delta_row->commit();
>>
>> ( line 306 crashes with invalid SQL command line value, obviously,  
>> but what goes here? )
>>
>> ?
>>
>> TIA,
>> Ken Uhl,
>> UC Berkeley
>>
>>
>>
>>
>> _______________________________________________
>> SanFrancisco-pm mailing list
>> SanFrancisco-pm at pm.org
>> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>>     
>
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>
> ------------------------------
>
> Message: 3
> Date: Thu, 19 Mar 2009 01:06:42 -0700
> From: Dan Dascalescu <ddascalescu at gmail.com>
> Subject: Re: [sf-perl] [Fwd: class DBI postgres date time format]
> To: San Francisco Perl Mongers User Group <sanfrancisco-pm at pm.org>
> Message-ID:
> 	<3561cc6d0903190106n4bbcc53dlbc3c2aa6096b40fe at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
>   
>> How do I set up table class method to correctly format and write 'updated'
>> ?column ?date and time stamp to postgres?
>>     
>
> DBIx::Class::TimeStamp might take care of that automagicallly.
>
>
> ------------------------------
>
> Message: 4
> Date: Thu, 19 Mar 2009 01:23:26 -0700
> From: Kevin Frost <biztos at mac.com>
> Subject: Re: [sf-perl] [Fwd: class DBI postgres date time format]
> To: San Francisco Perl Mongers User Group <sanfrancisco-pm at pm.org>
> Message-ID: <390FC95E-C446-4E6C-ADE7-C6E9BEE20049 at mac.com>
> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>
> Is there a Class::DBI equivalent?
>
> Of course you could just subclass Class::DBI and do it automatically  
> for everything that has an "updated" column.  But for the same amount  
> of effort you could learn DBIx::Class, so... :-)
>
> -- f.
>
> On Mar 19, 2009, at 1:06 AM, Dan Dascalescu wrote:
>
>   
>>> How do I set up table class method to correctly format and write  
>>> 'updated'
>>>  column  date and time stamp to postgres?
>>>       
>> DBIx::Class::TimeStamp might take care of that automagicallly.
>> _______________________________________________
>> SanFrancisco-pm mailing list
>> SanFrancisco-pm at pm.org
>> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>>     
>
>
>
> ------------------------------
>
> Message: 5
> Date: Thu, 19 Mar 2009 01:37:08 -0700
> From: Fred Moyer <fred at redhotpenguin.com>
> Subject: Re: [sf-perl] [Fwd: class DBI postgres date time format]
> To: San Francisco Perl Mongers User Group <sanfrancisco-pm at pm.org>
> Message-ID:
> 	<ad28918e0903190137n55afc1cewf4cd5275436f505b at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> 2009/3/18 ken uhl <kenuhl at berkeley.edu>:
>   
>> How do I set up table class method to correctly format and write 'updated'
>> ?column ?date and time stamp to postgres?
>>     
>
> With PostgreSQL you don't need to deflate an object if you just want
> to mark the time the row was updated.
>
> I have two columns, cts (creation time stamp) and mts (modification
> time stamp).  cts gets set automatically when the row is inserted, and
> mts updates to now() on subsequent updates via a trigger.
>
> cts              | timestamp without time zone | default now()
> mts              | timestamp without time zone | default now()
>
> create or replace function update_modified_column() returns trigger as $$ BEGIN
> NEW.mts = now();
> return new;
> END;
> $$ language 'plpgsql';
>
> create trigger update_table_mts BEFORE UPDATE ON router FOR EACH ROW
> EXECUTE PROCEDURE update_modified_column();
>
> Here's an actual record update, all I did was change a boolean in the record:
>
> cts              | 2007-08-29 12:55:22.028357
> mts              | 2008-08-12 11:58:37.77211
>
> cts              | 2007-08-29 12:55:22.028357
> mts              | 2009-03-19 00:43:54.714981
>
>
> Granted, this approach involves no Perl, but TMTOWTDI, and row
> modification creation and timestamping seems like something that
> should be done in the database (although I need a trigger for each
> table I track the cts and mts.  Modifying other date columns
> represents a chance though to use object inflation and deflation in
> Perl.
>
>   
>> I have table entry object that contains this - to inflate and deflate :
>>
>> I think I need to add ?"has_timestamp"
>> .....
>>
>> ? ?22 __PACKAGE__->table('dhcpmac');
>> ? ?23 __PACKAGE__->columns( Primary => qw/rowid/ );
>> ? ?24 __PACKAGE__->columns( All => qw/rowid mac calnetuid updated updatedby
>> dynhostname ishmael disable/ );
>> ? ?25
>> ? ?26 __PACKAGE__->has_a( updated => 'DateTime',
>> ? ?27 ? ? ? ? ? ? ? ? ? ? inflate => sub {
>> DateTime::Format::Pg->parse_timestamptz(shift); },
>> ? ?28 ? ? ? ? ? ? ? ? ? ? deflate => sub {
>> DateTime::Format::Pg->format_timestamptz(shift); } );
>>
>> ...
>>
>> my CGI ?does this :
>>
>> ...
>> # ?retrieve old row data ? 301 ? ? ? ? ?my $delta_row =
>> IST::DNSDB::dhcpmac->retrieve($old_rowid) ;
>> ? 302 ? ? ? ? ?my $old_mac = $delta_row->mac();
>> ...
>> # ?replace some of the data - including 'updated'
>> ? 305 ? ? ? ? ?$delta_row->mac($new_validated_mac);
>> ? 306 ? ? ? ? ? ? ?$delta_row->updated( "now()" );
>> ..
>> ? 308 ? ? ? ? ?$delta_row->updatedby($calnetuid);
>> ...
>> ? 313 ? ? ? ? ? $delta_row->update();
>> ? 314 ? ? ? ? ? $delta_row->commit();
>>
>> ( line 306 crashes with invalid SQL command line value, obviously, but what
>> goes here? )
>>
>> ?
>>
>> TIA,
>> Ken Uhl,
>> UC Berkeley
>>
>>
>>
>>
>> _______________________________________________
>> SanFrancisco-pm mailing list
>> SanFrancisco-pm at pm.org
>> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>>
>>
>>     
>
>
> ------------------------------
>
> Message: 6
> Date: Thu, 19 Mar 2009 01:55:24 -0700
> From: Kevin Frost <biztos at mac.com>
> Subject: Re: [sf-perl] [Fwd: class DBI postgres date time format]
> To: San Francisco Perl Mongers User Group <sanfrancisco-pm at pm.org>
> Message-ID: <558A5336-CF67-46BF-83EA-DABFB8C4CE10 at mac.com>
> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>
> Funny, I was almost going to mention triggers in my first response.
>
> The nice thing about doing it in a trigger is there's no way to forget/ 
> break the logic in your application.  The less-nice thing is that you  
> have a performance hit per update, which can be a problem in high  
> transaction volumes.  It's definitely something you'd want to  
> benchmark (triggers vs. Perl w/DateTime vs. Perl w/o DateTime) if you  
> expect to be doing a lot of updates.
>
> Also, I would argue that in Fred's example the modified timestamp  
> ("mts") should not have a default value.  When you create a record but  
> do not subsequently modify it, its modification timestamp should be  
> NULL, so you can tell the difference.  This of course is highly  
> impractical because you then have to remember about the NULLs in all  
> your queries for the rest of your life, so it's an argument I often  
> lose.
>
> FWIW PostgreSQL is also pretty forgiving in its date casting, and for  
> quick hacks and debugging you can often just skip the TO_DATE  
> altogether.
>
> And now back to our regularly scheduled Perl programming...
>
> -- f.
>
>
> On Mar 19, 2009, at 1:37 AM, Fred Moyer wrote:
>
>   
>> 2009/3/18 ken uhl <kenuhl at berkeley.edu>:
>>     
>>> How do I set up table class method to correctly format and write  
>>> 'updated'
>>>  column  date and time stamp to postgres?
>>>       
>> With PostgreSQL you don't need to deflate an object if you just want
>> to mark the time the row was updated.
>>
>> I have two columns, cts (creation time stamp) and mts (modification
>> time stamp).  cts gets set automatically when the row is inserted, and
>> mts updates to now() on subsequent updates via a trigger.
>>
>> cts              | timestamp without time zone | default now()
>> mts              | timestamp without time zone | default now()
>>
>> create or replace function update_modified_column() returns trigger  
>> as $$ BEGIN
>> NEW.mts = now();
>> return new;
>> END;
>> $$ language 'plpgsql';
>>
>> create trigger update_table_mts BEFORE UPDATE ON router FOR EACH ROW
>> EXECUTE PROCEDURE update_modified_column();
>>
>> Here's an actual record update, all I did was change a boolean in  
>> the record:
>>
>> cts              | 2007-08-29 12:55:22.028357
>> mts              | 2008-08-12 11:58:37.77211
>>
>> cts              | 2007-08-29 12:55:22.028357
>> mts              | 2009-03-19 00:43:54.714981
>>
>>
>> Granted, this approach involves no Perl, but TMTOWTDI, and row
>> modification creation and timestamping seems like something that
>> should be done in the database (although I need a trigger for each
>> table I track the cts and mts.  Modifying other date columns
>> represents a chance though to use object inflation and deflation in
>> Perl.
>>
>>     
>>> I have table entry object that contains this - to inflate and  
>>> deflate :
>>>
>>> I think I need to add  "has_timestamp"
>>> .....
>>>
>>>    22 __PACKAGE__->table('dhcpmac');
>>>    23 __PACKAGE__->columns( Primary => qw/rowid/ );
>>>    24 __PACKAGE__->columns( All => qw/rowid mac calnetuid updated  
>>> updatedby
>>> dynhostname ishmael disable/ );
>>>    25
>>>    26 __PACKAGE__->has_a( updated => 'DateTime',
>>>    27                     inflate => sub {
>>> DateTime::Format::Pg->parse_timestamptz(shift); },
>>>    28                     deflate => sub {
>>> DateTime::Format::Pg->format_timestamptz(shift); } );
>>>
>>> ...
>>>
>>> my CGI  does this :
>>>
>>> ...
>>> #  retrieve old row data   301          my $delta_row =
>>> IST::DNSDB::dhcpmac->retrieve($old_rowid) ;
>>>   302          my $old_mac = $delta_row->mac();
>>> ...
>>> #  replace some of the data - including 'updated'
>>>   305          $delta_row->mac($new_validated_mac);
>>>   306              $delta_row->updated( "now()" );
>>> ..
>>>   308          $delta_row->updatedby($calnetuid);
>>> ...
>>>   313           $delta_row->update();
>>>   314           $delta_row->commit();
>>>
>>> ( line 306 crashes with invalid SQL command line value, obviously,  
>>> but what
>>> goes here? )
>>>
>>> ?
>>>
>>> TIA,
>>> Ken Uhl,
>>> UC Berkeley
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> SanFrancisco-pm mailing list
>>> SanFrancisco-pm at pm.org
>>> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>>>
>>>
>>>       
>> _______________________________________________
>> SanFrancisco-pm mailing list
>> SanFrancisco-pm at pm.org
>> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>>     
>
>
>
> ------------------------------
>
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>
>
> End of SanFrancisco-pm Digest, Vol 50, Issue 7
> **********************************************
>
>   


From matt at lanier.org  Thu Mar 19 15:23:23 2009
From: matt at lanier.org (Matthew Lanier)
Date: Thu, 19 Mar 2009 15:23:23 -0700 (PDT)
Subject: [sf-perl] how to add to @INC at perl build time?
In-Reply-To: <75cbfa570903191205o452f2539heb6a44f47159e677@mail.gmail.com>
References: <alpine.LFD.2.00.0903191028390.14007@aurora.cloudfactory.org>
	<75cbfa570903191205o452f2539heb6a44f47159e677@mail.gmail.com>
Message-ID: <alpine.LFD.2.00.0903191523040.14007@aurora.cloudfactory.org>

yep, that did the trick, thanks!

m@

On Thu, 19 Mar 2009, yary wrote:

> On Thu, Mar 19, 2009 at 10:30 AM, Matthew Lanier <matt at lanier.org> wrote:
>> hey folks-
>>
>> i need to add a few paths to @INC while building perl, above and beyond the
>> paths that you are allowed to set via '(priv|arch|vendor|...)lib'.
>
> I'll assume you really do mean building perl (and not "at my program's
> compile time", where you'd use a BEGIN block or the -I command line
> switch). I did build a perl with a custom INC years ago, let's see if
> I can dig out the incantation...
>
> aha, from INSTALL doc in perl's source:
> ===
> As a final catch-all, Configure also offers an $otherlibdirs
> variable. ?This variable contains a colon-separated list of additional
> directories to add to @INC. ?By default, it will be empty.
> Perl will search these directories (including architecture and
> version-specific subdirectories) for add-on modules and extensions.
>
> For example, if you have a bundle of perl libraries from a previous
> installation, perhaps in a strange place:
>
> ? ? ? ?Configure -Dotherlibdirs=/usr/lib/perl5/site_perl/5.8.1
> ===
>
> back to lunch,
>
> -y
>

-- 

Matthew D. P. K. Strelchun-Lanier

From fred at redhotpenguin.com  Sat Mar 21 17:46:54 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Sat, 21 Mar 2009 17:46:54 -0700
Subject: [sf-perl] Fwd: [pm_groups] TPF in Google Summer of Code!
In-Reply-To: <200903211709.53023.scratchcomputing@gmail.com>
References: <200903211709.53023.scratchcomputing@gmail.com>
Message-ID: <ad28918e0903211746n52abe0a1k8deb28a7e791f6b2@mail.gmail.com>

---------- Forwarded message ----------
From: Eric Wilhelm <scratchcomputing at gmail.com>
Date: Sat, Mar 21, 2009 at 5:09 PM
Subject: [pm_groups] TPF in Google Summer of Code!
To: pm_groups at pm.org
Cc: Jonathan Leto <jaleto at gmail.com>


Hi all,

Please forward this to your local groups.

The Perl Foundation has been officially accepted into the Google Summer
of Code 2009 program as a mentor organization!

Hopefully some of you have identified some potential students already.
Now we need your help getting them to submit their proposals.

http://leto.net/dukeleto.pl/2009/03/tpf-accepted-to-google-summer-of-code-2009.html

The student application period begins Monday, March 23rd and runs
through April 3rd. ?(Students note: ?you can edit your proposal
throughout that 11-day period -- getting it started early and talking
to potential mentors greatly increases your chances vs throwing it over
the wall at the deadline.) ?See this page for details:

?http://code.google.com/soc/

Interested students and potential mentors, please read the GSoC info on
the Perl wiki:

?http://www.perlfoundation.org/perl5/index.cgi?gsoc
?http://www.perlfoundation.org/perl5/index.cgi?gsoc_2009_projects

If you're interested in mentoring or have a good project suggestion, now
is the time to get your info up on the wiki so students will know about
your code and where to find you.

Thanks,
Eric
--
Request pm.org Technical Support via support at pm.org

pm_groups mailing list
pm_groups at pm.org
http://mail.pm.org/mailman/listinfo/pm_groups

From fred at redhotpenguin.com  Mon Mar 23 13:22:24 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Mon, 23 Mar 2009 13:22:24 -0700
Subject: [sf-perl] Evolving Tests and Idioms of March tomorrow at 7pm
Message-ID: <ad28918e0903231322l85cf558pf6bcdf4ab55334f6@mail.gmail.com>

Hope to see you there!

http://www.meetup.com/San-Francisco-Perl-Mongers/calendar/9442341/

http://sf.pm.org/weblog/


Here's the location information -
http://www.meetup.com/San-Francisco-Perl-Mongers/venue/842240/?eventId=9442341&popup=true


Directions from Oakland:  take an SF Bart train to the Embarcadero
station, get off and change to the N-Judi train.  Get off the N-Judah
at 4th street.  Walk up 4th street to Six Apart Headquarters.

From matt at lanier.org  Mon Mar 23 17:36:19 2009
From: matt at lanier.org (Matthew Lanier)
Date: Mon, 23 Mar 2009 17:36:19 -0700 (PDT)
Subject: [sf-perl] dynamic #! line
Message-ID: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>

hey folks-

i'm in a situation where I may need to set #! on a perl script at run time 
via the environment.  I know that's technically possible, but am unsure 
what hidden gotchas may result.  Any thoughts on that?

m@


-- 

Matthew D. P. K. Strelchun-Lanier

From david at fetter.org  Mon Mar 23 17:39:58 2009
From: david at fetter.org (David Fetter)
Date: Mon, 23 Mar 2009 17:39:58 -0700
Subject: [sf-perl] dynamic #! line
In-Reply-To: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
Message-ID: <20090324003958.GG10660@fetter.org>

On Mon, Mar 23, 2009 at 05:36:19PM -0700, Matthew Lanier wrote:
> hey folks-
>
> i'm in a situation where I may need to set #! on a perl script at
> run time via the environment.  I know that's technically possible,
> but am unsure what hidden gotchas may result.  Any thoughts on that?

Well, you could use the old

    #!/usr/bin/env perl 

trick.  The gotcha is just the usual one about anything that radically
changes behavior based on hard-to-reproduce-later stuff like
environment variables.

Cheers,
David.
-- 
David Fetter <david at fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fetter at gmail.com

Remember to vote!
Consider donating to Postgres: http://www.postgresql.org/about/donate

From andy at petdance.com  Mon Mar 23 17:44:14 2009
From: andy at petdance.com (Andy Lester)
Date: Mon, 23 Mar 2009 19:44:14 -0500
Subject: [sf-perl] dynamic #! line
In-Reply-To: <20090324003958.GG10660@fetter.org>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
	<20090324003958.GG10660@fetter.org>
Message-ID: <4217DF4D-2D60-4290-8F83-FD88AF19613D@petdance.com>


On Mar 23, 2009, at 7:39 PM, David Fetter wrote:

>> i'm in a situation where I may need to set #! on a perl script at
>> run time via the environment.  I know that's technically possible,
>> but am unsure what hidden gotchas may result.  Any thoughts on that?


What are you trying to achieve by setting the #! line?  Unless you're  
setting -t/-T, you should be able to do the rest at startup without  
touching the shebang.

xoxo,
Andy

--
Andy Lester => andy at petdance.com => www.petdance.com => AIM:petdance





From matt at lanier.org  Mon Mar 23 17:48:23 2009
From: matt at lanier.org (Matthew Lanier)
Date: Mon, 23 Mar 2009 17:48:23 -0700 (PDT)
Subject: [sf-perl] dynamic #! line
In-Reply-To: <4217DF4D-2D60-4290-8F83-FD88AF19613D@petdance.com>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
	<20090324003958.GG10660@fetter.org>
	<4217DF4D-2D60-4290-8F83-FD88AF19613D@petdance.com>
Message-ID: <alpine.LFD.2.00.0903231747120.14007@aurora.cloudfactory.org>


long story, i'm trying to not modify the startup context if i don't need 
to.

as dfetter suggested, '/usr/bin/env perl' works, though it appears to work 
via perl being in the path.

m@

On Mon, 23 Mar 2009, Andy Lester wrote:

>
> On Mar 23, 2009, at 7:39 PM, David Fetter wrote:
>
>> > i'm in a situation where I may need to set #! on a perl script at
>> > run time via the environment.  I know that's technically possible,
>> > but am unsure what hidden gotchas may result.  Any thoughts on that?
>
>
> What are you trying to achieve by setting the #! line?  Unless you're setting 
> -t/-T, you should be able to do the rest at startup without touching the 
> shebang.
>
> xoxo,
> Andy
>
> --
> Andy Lester => andy at petdance.com => www.petdance.com => AIM:petdance
>
>
>
>
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>

-- 

Matthew D. P. K. Strelchun-Lanier

From extasia at extasia.org  Mon Mar 23 18:55:17 2009
From: extasia at extasia.org (David Alban)
Date: Mon, 23 Mar 2009 18:55:17 -0700
Subject: [sf-perl] dynamic #! line
In-Reply-To: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
Message-ID: <4c714a9c0903231855y675d8c96ifb86886d3116c370@mail.gmail.com>

if you're in a unix environment, you'll have at least /bin/sh
available (hopefully /bin/bash too).  could you call a shell program
which will set the shebang line and then call the resulting program
with all args?

in the shell program you could do useful things, like look for
different perl executables, perhaps md5sum them, check whether they're
in system directories, check when they were last modified, whether
they're group or world writeable, and perhaps take intelligent action
if no "suitable" perl's are found.

On Mon, Mar 23, 2009 at 5:36 PM, Matthew Lanier <matt at lanier.org> wrote:
> i'm in a situation where I may need to set #! on a perl script at run time
> via the environment. ?I know that's technically possible, but am unsure what
> hidden gotchas may result. ?Any thoughts on that?

-- 
Live in a world of your own, but always welcome visitors.

From biztos at mac.com  Mon Mar 23 19:04:22 2009
From: biztos at mac.com (frosty)
Date: Mon, 23 Mar 2009 19:04:22 -0700
Subject: [sf-perl] dynamic #! line
In-Reply-To: <4c714a9c0903231855y675d8c96ifb86886d3116c370@mail.gmail.com>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
	<4c714a9c0903231855y675d8c96ifb86886d3116c370@mail.gmail.com>
Message-ID: <135506817083441121587333275411676976832-Webmail@me.com>

I use the /usr/bin/env trick all the time.

In my case it's because I want code to happily run under a custom Perl, an OSX Perl, a macports Perl, and a few different Linux Perls, without any fancy futzing around.

However, I have never tested it for edge cases or weird/untrusted user environments.  It seems a bit risky if you're deploying code onto servers you don't control.

Also, you can't just pass  in a bunch of switches to perl if you do it this way.  That might matter to you; it doesn't to me.

-- f.

On Monday, March 23, 2009, at 06:55PM, "David Alban" <extasia at extasia.org> wrote:
>if you're in a unix environment, you'll have at least /bin/sh
>available (hopefully /bin/bash too).  could you call a shell program
>which will set the shebang line and then call the resulting program
>with all args?
>
>in the shell program you could do useful things, like look for
>different perl executables, perhaps md5sum them, check whether they're
>in system directories, check when they were last modified, whether
>they're group or world writeable, and perhaps take intelligent action
>if no "suitable" perl's are found.
>
>On Mon, Mar 23, 2009 at 5:36 PM, Matthew Lanier <matt at lanier.org> wrote:
>> i'm in a situation where I may need to set #! on a perl script at run time
>> via the environment. ?I know that's technically possible, but am unsure what
>> hidden gotchas may result. ?Any thoughts on that?
>
>-- 
>Live in a world of your own, but always welcome visitors.
>_______________________________________________
>SanFrancisco-pm mailing list
>SanFrancisco-pm at pm.org
>http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>
>

From doom at kzsu.stanford.edu  Mon Mar 23 20:36:56 2009
From: doom at kzsu.stanford.edu (Joe Brenner)
Date: Mon, 23 Mar 2009 20:36:56 -0700
Subject: [sf-perl] dynamic #! line
In-Reply-To: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
Message-ID: <200903240337.n2O3au1C077877@kzsu.stanford.edu>


Matthew Lanier <matt at lanier.org> wrote:

> i'm in a situation where I may need to set #! on a perl script at run time
> via the environment.  I know that's technically possible, but am unsure
> what hidden gotchas may result.  Any thoughts on that?

Have you checked the "perlrun" manpage?

When this subject came up back in 2003, there were essentially
four ideas discussed:

(1) wrapper programs that change the hashbang line (e.g. a C program)
(2) add symlinks to the system so that perl is found in multiple places
(3) using a "sh" hashbang that then runs perl
(4) the env trick

I'm appending some messages from the 2003 thread:

===

Date: Fri, 10 Jan 2003 16:09:31 -0800
From: John Tannahill <tannahill1 at llnl.gov>
To: sfpug at sf.pm.org
Subject: [sf-perl] [Fwd: [Fwd:perl scripting]]

It's my understanding that your group does a lot of Perl script
writing.  Over the years, I have written some perl scripts to
serve as utilities for the code that I work on.  The problem
that I ran into is with the typical first line of a perl script:

  #!/usr/bin/perl

We run on many different machines and unfortunately it turned
out that perl wasn't always in /usr/bin.  Sometimes it is in
/usr/local/bin or it could in theory be anywhere the system
people want to put it.

The solution we implemented was to put a C-Shell wrapper
around each perl script which checks to see where perl is and
then rewrites the perl script to a seperate file with the
correct first line and executes it.  This works, but it is
pretty unwieldy and ugly.  Perhaps you or someone in your
group knows a simple remedy for this issue?  Or maybe you can
point to someone who might?

The C-Shell wrapper looks like this:

#

#--------------------------------------------------------------------------
# The statements above, immediately below, and at the very end of this file
# were added to make this script more portable, as perl does not always
# reside in the same place on different machines.
#--------------------------------------------------------------------------

set DIRS   = (/usr/bin  /usr/local/bin)
set PLFILE = /tmp/tmpplfile.$$

foreach dir ($DIRS)
  if (-e $dir/perl) then
    echo "#\!$dir/perl -w" > $PLFILE
    break
  else if ($dir == $DIRS[$#DIRS]) then
    echo "PERL NOT FOUND; SEE BEGINNING OF SCRIPT."
    exit
  endif
end

cat >> $PLFILE << "TO_THE_END_OF_THE_PERL_SCRIPT"

.
.
.

.
.
.

"TO_THE_END_OF_THE_PERL_SCRIPT"


===

Date: Fri, 10 Jan 2003 16:59:08 -0800
From: Belden Lyman <blyman at iii.com>
To: sfpug at sf.pm.org
Subject: Re: [sf-perl] [Fwd: [Fwd:perl scripting]]

M.Lewis wrote:

> What I've found is most perl scripts that you might download from one place or
> another will look for perl in only a couple of places. For instance
> /usr/bin/perl or /usr/local/bin/perl.
>
> I solved the problem with a symlink in /usr/local/bin (my perl lives in
> /usr/bin).
>
> Maybe too simple ?

Hey, it works. It's also described in 'perlrun' under ``Location of
Perl''.

The ``Description'' section of perlrun also presents such gems as:

     #!/bin/sh -- # -*- perl -*- -p
     eval 'exec perl -wS $0 ${1+"$@"}'
         if $running_under_some_shell;

and

     #!/usr/bin/env perl

which might be useful if symlinking isn't an option.

Belden

===

Date: Sat, 11 Jan 2003 00:11:13 -0800
To: sfpug at sf.pm.org
From: Rich Morin <rdm at cfcl.com>
Subject: Re: [sf-perl] [Fwd: [Fwd:perl scripting]]

I use this:

   #!/usr/bin/env perl
   ...

It has the advantage of using whichever version of perl comes first on
the PATH, just as if you had typed:

   % perl ...

-r

===

From doom at kzsu.stanford.edu  Mon Mar 23 20:36:56 2009
From: doom at kzsu.stanford.edu (Joe Brenner)
Date: Mon, 23 Mar 2009 20:36:56 -0700
Subject: [sf-perl] dynamic #! line
In-Reply-To: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
Message-ID: <200903240337.n2O3au1C077877@kzsu.stanford.edu>


Matthew Lanier <matt at lanier.org> wrote:

> i'm in a situation where I may need to set #! on a perl script at run time
> via the environment.  I know that's technically possible, but am unsure
> what hidden gotchas may result.  Any thoughts on that?

Have you checked the "perlrun" manpage?

When this subject came up back in 2003, there were essentially
four ideas discussed:

(1) wrapper programs that change the hashbang line (e.g. a C program)
(2) add symlinks to the system so that perl is found in multiple places
(3) using a "sh" hashbang that then runs perl
(4) the env trick

I'm appending some messages from the 2003 thread:

===

Date: Fri, 10 Jan 2003 16:09:31 -0800
From: John Tannahill <tannahill1 at llnl.gov>
To: sfpug at sf.pm.org
Subject: [sf-perl] [Fwd: [Fwd:perl scripting]]

It's my understanding that your group does a lot of Perl script
writing.  Over the years, I have written some perl scripts to
serve as utilities for the code that I work on.  The problem
that I ran into is with the typical first line of a perl script:

  #!/usr/bin/perl

We run on many different machines and unfortunately it turned
out that perl wasn't always in /usr/bin.  Sometimes it is in
/usr/local/bin or it could in theory be anywhere the system
people want to put it.

The solution we implemented was to put a C-Shell wrapper
around each perl script which checks to see where perl is and
then rewrites the perl script to a seperate file with the
correct first line and executes it.  This works, but it is
pretty unwieldy and ugly.  Perhaps you or someone in your
group knows a simple remedy for this issue?  Or maybe you can
point to someone who might?

The C-Shell wrapper looks like this:

#

#--------------------------------------------------------------------------
# The statements above, immediately below, and at the very end of this file
# were added to make this script more portable, as perl does not always
# reside in the same place on different machines.
#--------------------------------------------------------------------------

set DIRS   = (/usr/bin  /usr/local/bin)
set PLFILE = /tmp/tmpplfile.$$

foreach dir ($DIRS)
  if (-e $dir/perl) then
    echo "#\!$dir/perl -w" > $PLFILE
    break
  else if ($dir == $DIRS[$#DIRS]) then
    echo "PERL NOT FOUND; SEE BEGINNING OF SCRIPT."
    exit
  endif
end

cat >> $PLFILE << "TO_THE_END_OF_THE_PERL_SCRIPT"

.
.
.

.
.
.

"TO_THE_END_OF_THE_PERL_SCRIPT"


===

Date: Fri, 10 Jan 2003 16:59:08 -0800
From: Belden Lyman <blyman at iii.com>
To: sfpug at sf.pm.org
Subject: Re: [sf-perl] [Fwd: [Fwd:perl scripting]]

M.Lewis wrote:

> What I've found is most perl scripts that you might download from one place or
> another will look for perl in only a couple of places. For instance
> /usr/bin/perl or /usr/local/bin/perl.
>
> I solved the problem with a symlink in /usr/local/bin (my perl lives in
> /usr/bin).
>
> Maybe too simple ?

Hey, it works. It's also described in 'perlrun' under ``Location of
Perl''.

The ``Description'' section of perlrun also presents such gems as:

     #!/bin/sh -- # -*- perl -*- -p
     eval 'exec perl -wS $0 ${1+"$@"}'
         if $running_under_some_shell;

and

     #!/usr/bin/env perl

which might be useful if symlinking isn't an option.

Belden

===

Date: Sat, 11 Jan 2003 00:11:13 -0800
To: sfpug at sf.pm.org
From: Rich Morin <rdm at cfcl.com>
Subject: Re: [sf-perl] [Fwd: [Fwd:perl scripting]]

I use this:

   #!/usr/bin/env perl
   ...

It has the advantage of using whichever version of perl comes first on
the PATH, just as if you had typed:

   % perl ...

-r

===

From not.com at gmail.com  Mon Mar 23 21:10:58 2009
From: not.com at gmail.com (yary)
Date: Mon, 23 Mar 2009 21:10:58 -0700
Subject: [sf-perl] dynamic #! line
In-Reply-To: <200903240337.n2O3au1C077877@kzsu.stanford.edu>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org> 
	<200903240337.n2O3au1C077877@kzsu.stanford.edu>
Message-ID: <75cbfa570903232110p62e9c8d1s192dea8f2672142c@mail.gmail.com>

Depending on the situation, you might be able to eliminate the need
for the shebang by calling perl explicitly, that is, use

/path/to/perl /usr/local/bin/myscript -arg foo ...

instead of

/usr/local/bin/myscript -arg foo ...

when you need to run "myscript".

Works if you get to write the install instructions for "myscript", and
can depend on people following them.

From david_v_wright at yahoo.com  Mon Mar 23 21:14:30 2009
From: david_v_wright at yahoo.com (david wright- [&#30333;&#29066;])
Date: Mon, 23 Mar 2009 21:14:30 -0700 (PDT)
Subject: [sf-perl] dynamic #! line
Message-ID: <362440.57683.qm@web31809.mail.mud.yahoo.com>


Howdy, 

I'm not sure I follow fully, it seems you want to use a system specific possibly unknown ahead of time perl path?

e.g. maybe not /usr/bin/perl

would borrowing the python trick of #!/usr/bin/env perl work? 

let your env decide which perl to use? or am I missing the point?

+dave


--- On Mon, 3/23/09, Matthew Lanier <matt at lanier.org> wrote:

> From: Matthew Lanier <matt at lanier.org>
> Subject: [sf-perl] dynamic #! line
> To: sfpug at sf.pm.org
> Date: Monday, March 23, 2009, 8:36 PM
> hey folks-
> 
> i'm in a situation where I may need to set #! on a perl
> script at run time via the environment.? I know that's
> technically possible, but am unsure what hidden gotchas may
> result.? Any thoughts on that?
> 
> m@
> 
> 
> -- 
> Matthew D. P. K. Strelchun-Lanier
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
> 

From david_v_wright at yahoo.com  Mon Mar 23 21:16:30 2009
From: david_v_wright at yahoo.com (david wright- [&#30333;&#29066;])
Date: Mon, 23 Mar 2009 21:16:30 -0700 (PDT)
Subject: [sf-perl] dynamic #! line
Message-ID: <777919.29539.qm@web31811.mail.mud.yahoo.com>


geez, my bad, this went into another dir, so I didn't see all the other responses, sorry for the duplicate suggestion,...

--- On Tue, 3/24/09, david wright- [&#30333;&#29066;] <david_v_wright at yahoo.com> wrote:

> From: david wright- [??] <david_v_wright at yahoo.com>
> Subject: Re: [sf-perl] dynamic #! line
> To: matt at lanier.org, "San Francisco Perl Mongers User Group" <sanfrancisco-pm at pm.org>
> Date: Tuesday, March 24, 2009, 12:14 AM
> 
> Howdy, 
> 
> I'm not sure I follow fully, it seems you want to use a
> system specific possibly unknown ahead of time perl path?
> 
> e.g. maybe not /usr/bin/perl
> 
> would borrowing the python trick of #!/usr/bin/env perl
> work? 
> 
> let your env decide which perl to use? or am I missing the
> point?
> 
> +dave
> 
> 
> --- On Mon, 3/23/09, Matthew Lanier <matt at lanier.org>
> wrote:
> 
> > From: Matthew Lanier <matt at lanier.org>
> > Subject: [sf-perl] dynamic #! line
> > To: sfpug at sf.pm.org
> > Date: Monday, March 23, 2009, 8:36 PM
> > hey folks-
> > 
> > i'm in a situation where I may need to set #! on a
> perl
> > script at run time via the environment.? I know
> that's
> > technically possible, but am unsure what hidden
> gotchas may
> > result.? Any thoughts on that?
> > 
> > m@
> > 
> > 
> > -- 
> > Matthew D. P. K. Strelchun-Lanier
> > _______________________________________________
> > SanFrancisco-pm mailing list
> > SanFrancisco-pm at pm.org
> > http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
> > 
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
> 

From cweyl at alumni.drew.edu  Tue Mar 24 12:28:14 2009
From: cweyl at alumni.drew.edu (Chris Weyl)
Date: Tue, 24 Mar 2009 12:28:14 -0700
Subject: [sf-perl] dynamic #! line
In-Reply-To: <alpine.LFD.2.00.0903231747120.14007@aurora.cloudfactory.org>
References: <alpine.LFD.2.00.0903231734260.14007@aurora.cloudfactory.org>
	<20090324003958.GG10660@fetter.org>
	<4217DF4D-2D60-4290-8F83-FD88AF19613D@petdance.com>
	<alpine.LFD.2.00.0903231747120.14007@aurora.cloudfactory.org>
Message-ID: <7dd7ab490903241228g5fbb38desa3005ae46c65fede@mail.gmail.com>

On Mon, Mar 23, 2009 at 5:48 PM, Matthew Lanier <matt at lanier.org> wrote:

>
> long story, i'm trying to not modify the startup context if i don't need
> to.
>
> as dfetter suggested, '/usr/bin/env perl' works, though it appears to work
> via perl being in the path.
>

On some boxes at $work, we have very old or otherwise wonky Perl
installations as the system Perl.  I've built and installed a newer Perl on
these boxes; to use the new Perl transparently I created a small module that
checks $^X to see what's currently executing the script.  If it's the old
system Perl and the new Perl is available, we exec ourself under the new
Perl; if we're running under the new Perl (or it's unavailable), it's a
no-op.

This works nicely as it's use'd, and so gets run nice and early.  I'd
imagine if you had to, you could rig it to reexec with more command-line
parameters...

                               -Chris
-- 
Chris Weyl
Ex astris, scientia
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From fred at redhotpenguin.com  Tue Mar 24 12:36:40 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Tue, 24 Mar 2009 12:36:40 -0700
Subject: [sf-perl] Fwd: UG News: $199 O'Reilly classes and a chance for some
	free passes
In-Reply-To: <LYRIS-10278226-63633-2009.03.23-16.02.42--fred#redhotpenguin.com@newsletter.oreilly.com>
References: <LYRIS-10278226-63633-2009.03.23-16.02.42--fred#redhotpenguin.com@newsletter.oreilly.com>
Message-ID: <ad28918e0903241236u167bb45h26b05941ec3bc89b@mail.gmail.com>

This looks like a pretty good deal here.


---------- Forwarded message ----------
From: Marsee Henon <marsee at oreilly.com>
Date: Mon, Mar 23, 2009 at 5:02 PM
Subject: UG News: $199 O'Reilly classes and a chance for some free passes
To: fred at redhotpenguin.com


Hi there

I'm happy to announce a special discount and some free passes for
Bay Area user group members to our upcoming Master Classes in San
Francisco March 30. Please share with your group if you think they
might be interested. The details are below.

Marsee



New O'Reilly Training and Master Classes in San Francisco--
$199 per class. And we're offering 10 free passes to classes taught
by Scott Berkun and Steve Souders on a first come, first serve basis.
Just use code -- ugfree -- when you register online. Sign up today.

In this increasingly competitive job market, having top-of-the-line
technical and management skills is critical. The good news is that you
can improve your skills and learn some new techniques that will make you
irreplaceable--without breaking the bank.

The first three one-day Master Classes on JavaScript, Creating High
Performance Websites, and Project Management are scheduled for March 30
in San Francisco.

Right now user group members pay only $199 per O'Reilly Master class--
Scott Berkun on project management, Douglas Crockford on JavaScript
coding, and Steve Souders on improving website performance.

Go to <http://training.oreilly.com> and use special offer code -- baug
-- to register at the special price of $199.00 per class. Everyone in the
class receives $100 worth of O'Reilly books.


Here are the details:


O'Reilly Master Class: Douglas Crockford, March 30, 2009, San Francisco,
CA JavaScript: The Good Parts Like most languages, JavaScript contains
both good and bad parts. The bad parts keep it from becoming an elegant,
lightweight, and highly expressive language. In this class, you'll
discover good JavaScript you can use to create truly extensible code.
The author of "JavaScript: The Good Parts," (O'Reilly Media), Crockford
is a regular speaker at conferences on advanced JavaScript topics. He
serves on the JavaScript 2.0 committee at ECMA. Everyone in the class
receives $100 worth of O'Reilly books.

1-day workshop, 9am-5pm, Mar. 30
Mission Bay Conference Center
University of California, San Francisco (UCSF)
1675 Owens St. San?Francisco, CA 94143

For more information and to register:
Call: (707) 827-7000 / (800)?998-9938
http://training.oreilly.com/javascript

*******************************************

O'Reilly Master Class: Scott Berkun, March 30, 2009, San Francisco, CA
Leading and Managing Breakthrough Projects Scott Berkun, author of the
bestselling "The Myths of Innovation" (O'Reilly Media) uses valuable
insights from the past as well as challenging in-class exercises to help
you develop the leadership skills and knowledge you need to manage
innovative people and projects. Everyone in the class receives $100
worth of O'Reilly books.


1-day workshop, 10am-5pm, Mar. 30
Mission Bay Conference Center
University of California, San Francisco (UCSF)
1675 Owens St. San?Francisco, CA 94143

For more information and to register:
Call: (707) 827-7000 / (800) 998-9938
http://training.oreilly.com/projectmanagement

*******************************************

O'Reilly Master Class: Steve Souders, March 30, 2009, San Francisco, CA
Creating High Performance Web Sites While working at Google and Yahoo!,
Steve Souders developed rules that cut up to 25% off response time for
page requests. In this class, Souders, the author of the bestselling
O'Reilly book, "High Performance Web Sites" (O'Reilly Media), explains
those rules and shows you how you can greatly improve the performance of
your existing web pages. Everyone in the class receives $100 worth of
O'Reilly books.

1-day workshop, 9am-5pm, Mar. 30
Mission Bay Conference Center
University of California, San Francisco (UCSF)
1675 Owens St. San Francisco, CA 94143

For more information and to register:
Call: (707) 827-7000 / (800) 998-9938
http://training.oreilly.com/highperformancesites


================================================================
O'Reilly
1005 Gravenstein Highway North
Sebastopol, CA ? 95472
800-998-9938
http://ug.oreilly.com/
Follow us on Twitter at http://twitter.com/OReillyMedia

You are receiving this email because you are a User Group
contact with O'Reilly Media. If you would like to stop
receiving these newsletters or announcements from O'Reilly,
send an email to marsee at oreilly.com
================================================================

From fred at redhotpenguin.com  Tue Mar 24 12:39:25 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Tue, 24 Mar 2009 12:39:25 -0700
Subject: [sf-perl] Fwd: [perl-112] Idiom contest! E-mail your favorite idiom
	now. Win scrumptious books.
In-Reply-To: <603049018.1237878840879.JavaMail.nobody@james3>
References: <603049018.1237878840879.JavaMail.nobody@james3>
Message-ID: <ad28918e0903241239o551ccf90x9b264500fe30605b@mail.gmail.com>

Meeting tonight, don't forget your idioms.


---------- Forwarded message ----------
From: julian <julian_meet at supersnail.com>
Date: Tue, Mar 24, 2009 at 12:14 AM
Subject: [perl-112] Idiom contest!  E-mail your favorite idiom now.
Win scrumptious books.
To: perl-112 at meetup.com


What you can win:
- iPhone SDK Application Development
- 97 Things Every Software Architect Should Know
- A thrilling copy of make magazine
- A flash dive
- A virtual indulgence

What you can lose:
- Your pride

Now is your chance.

Email your favorite Perl Idiom to both Fred and I:
julian_meet at supersnail.com
fred at redhotpenguin.com
Entries must sent within 23 minutes of the deadline.

Don't wait. Send your favorite now, before it's too late. We will all
vote and determine who will win and who will lose. This could be your
chance for glory and everlasting fame.

If this seems confusing, just google for "idiom perl". Find your
favorite, or if you're especially daring, come up with one.

You can win salvation,
-julian geek




--
Please Note: If you hit "REPLY", your message will be sent to everyone
on this mailing list (perl-112 at meetup.com)
This message was sent by julian (julian_meet at supersnail.com) from San
Francisco Perl Mongers.
To learn more about julian, visit his/her member profile
To unsubscribe or to update your mailing list settings, click here

Meetup Support: support at meetup.com
632 Broadway, New York, NY 10012 USA

From fred at redhotpenguin.com  Tue Mar 24 13:51:23 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Tue, 24 Mar 2009 13:51:23 -0700
Subject: [sf-perl] Fwd: Last day for 10th Anniversary Special
In-Reply-To: <20090324203349.GA24490@mawode.com>
References: <20090324203349.GA24490@mawode.com>
Message-ID: <ad28918e0903241351r6a677baevbf298e939ccea174@mail.gmail.com>

---------- Forwarded message ----------
From: Walt Mankowski <waltman at pobox.com>
Date: Tue, Mar 24, 2009 at 1:33 PM
Subject: Fwd: Last day for 10th Anniversary Special
To: phl at lists.pm.org


The rate goes up to $125 tomorrow.

----- Forwarded message from Robert Blackwell <robert at robertblackwell.com> -----

Date: Tue, 24 Mar 2009 16:21:56 -0400
From: Robert Blackwell <robert at robertblackwell.com>
To: yapc at pm.org
Subject: [yapc] Last day for 10th Anniversary Special

Last day for 10th Anniversary Special for $99.00.
http://yapc10.org.
_______________________________________________
yapc mailing list
yapc at pm.org
http://mail.pm.org/mailman/listinfo/yapc

----- End forwarded message -----

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From parallax99 at hotmail.com  Wed Mar 25 10:13:21 2009
From: parallax99 at hotmail.com (Stefan Amshey)
Date: Wed, 25 Mar 2009 10:13:21 -0700
Subject: [sf-perl] Catalyst question - sharing data between sessions
Message-ID: <BAY140-W8D8CAB366ADD62555FE8FD4900@phx.gbl>


Hi all-

I realize that this may not be the best list to ask this question on since it involves a specific Perl technology, but does anyone out there have some experience writing web-apps in Catalyst that could give me a basic point in the right direction regarding the following:

I'm writing a web-app that needs to hold some large data structures, and instead of incurring the cost of loading those structures for each user session we'd like to store them in some context that is shared between sessions and possibly locked/unlocked/synchronized to avoid collisions.  The stash is cleared after every request, and the session object is user-specific.  Is there some concept of a "global session", or can we tie variables to the top-level Catalyst object, or something like that?  Anyone solved this problem before without resorting to writing files?

Thanks!
    /S

-
Stefan Amshey
parallax99 at hotmail.com


_________________________________________________________________
Express your personality in color! Preview and select themes for Hotmail?.
http://www.windowslive-hotmail.com/LearnMore/personalize.aspx?ocid=TXT_MSGTX_WL_HM_express_032009#colortheme
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From garth.webb at gmail.com  Wed Mar 25 10:27:12 2009
From: garth.webb at gmail.com (Garth Webb)
Date: Wed, 25 Mar 2009 10:27:12 -0700
Subject: [sf-perl] Catalyst question - sharing data between sessions
In-Reply-To: <BAY140-W8D8CAB366ADD62555FE8FD4900@phx.gbl>
References: <BAY140-W8D8CAB366ADD62555FE8FD4900@phx.gbl>
Message-ID: <c0d982e10903251027n738a5cb4h40a1e0620c777cf1@mail.gmail.com>

So I'm not clear about a few things.  You say that you want to share
some context between sessions.  Is this between two different user
sessions, or reload the same session for one user with all its data
more than once?  You also say that you clear the stash after every
request.  Does this mean you want to clear all the data?  This
wouldn't make sense for reloading the same session for a single user,
and if its multiple users they would only be able to share data if the
requests were happening simultaneously.

I *think* what you're asking for is the concept of persistent session
data that is available for a single user on every request they make.
This is pretty easy to setup on Catalyst:

  http://search.cpan.org/dist/Catalyst-Plugin-Session/lib/Catalyst/Plugin/Session/Tutorial.pod

If you want to share data between processes and don't want to incur
hits to your DB, maybe you want Memcached.

Garth

2009/3/25 Stefan Amshey <parallax99 at hotmail.com>:
> Hi all-
>
> I realize that this may not be the best list to ask this question on since
> it involves a specific Perl technology, but does anyone out there have some
> experience writing web-apps in Catalyst that could give me a basic point in
> the right direction regarding the following:
>
> I'm writing a web-app that needs to hold some large data structures, and
> instead of incurring the cost of loading those structures for each user
> session we'd like to store them in some context that is shared between
> sessions and possibly locked/unlocked/synchronized to avoid collisions.? The
> stash is cleared after every request, and the session object is
> user-specific.? Is there some concept of a "global session", or can we tie
> variables to the top-level Catalyst object, or something like that?? Anyone
> solved this problem before without resorting to writing files?
>
> Thanks!
> ??? /S
>
> - Stefan Amshey parallax99 at hotmail.com
>
>
> ________________________________
> Express your personality in color! Preview and select themes for Hotmail?.
> See how.
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>
>

From parallax99 at hotmail.com  Wed Mar 25 10:34:25 2009
From: parallax99 at hotmail.com (Stefan Amshey)
Date: Wed, 25 Mar 2009 10:34:25 -0700
Subject: [sf-perl] Catalyst question - sharing data between sessions
In-Reply-To: <c0d982e10903251027n738a5cb4h40a1e0620c777cf1@mail.gmail.com>
References: <BAY140-W8D8CAB366ADD62555FE8FD4900@phx.gbl>
	<c0d982e10903251027n738a5cb4h40a1e0620c777cf1@mail.gmail.com>
Message-ID: <BAY140-W25E9C3E9E1121ED7C15742D4900@phx.gbl>


Actually, I was merely stating fact that the stash is cleared after every request.  I also understand the concept of a user session, but what I'm looking for is a way of sharing data between users, each of whom is involved in a separate session, but concurrently.  I'm not worried about clearing the data out, only sharing it so that we don't have to re-load it for each session.
    /S

-
Stefan Amshey
parallax99 at hotmail.com



> Date: Wed, 25 Mar 2009 10:27:12 -0700
> From: garth.webb at gmail.com
> To: sanfrancisco-pm at pm.org
> Subject: Re: [sf-perl] Catalyst question - sharing data between sessions
> 
> So I'm not clear about a few things.  You say that you want to share
> some context between sessions.  Is this between two different user
> sessions, or reload the same session for one user with all its data
> more than once?  You also say that you clear the stash after every
> request.  Does this mean you want to clear all the data?  This
> wouldn't make sense for reloading the same session for a single user,
> and if its multiple users they would only be able to share data if the
> requests were happening simultaneously.
> 
> I *think* what you're asking for is the concept of persistent session
> data that is available for a single user on every request they make.
> This is pretty easy to setup on Catalyst:
> 
>   http://search.cpan.org/dist/Catalyst-Plugin-Session/lib/Catalyst/Plugin/Session/Tutorial.pod
> 
> If you want to share data between processes and don't want to incur
> hits to your DB, maybe you want Memcached.
> 
> Garth
> 
> 2009/3/25 Stefan Amshey <parallax99 at hotmail.com>:
> > Hi all-
> >
> > I realize that this may not be the best list to ask this question on since
> > it involves a specific Perl technology, but does anyone out there have some
> > experience writing web-apps in Catalyst that could give me a basic point in
> > the right direction regarding the following:
> >
> > I'm writing a web-app that needs to hold some large data structures, and
> > instead of incurring the cost of loading those structures for each user
> > session we'd like to store them in some context that is shared between
> > sessions and possibly locked/unlocked/synchronized to avoid collisions.  The
> > stash is cleared after every request, and the session object is
> > user-specific.  Is there some concept of a "global session", or can we tie
> > variables to the top-level Catalyst object, or something like that?  Anyone
> > solved this problem before without resorting to writing files?
> >
> > Thanks!
> >     /S
> >
> > - Stefan Amshey parallax99 at hotmail.com
> >
> >
> > ________________________________
> > Express your personality in color! Preview and select themes for Hotmail?.
> > See how.
> > _______________________________________________
> > SanFrancisco-pm mailing list
> > SanFrancisco-pm at pm.org
> > http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
> >
> >
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm

_________________________________________________________________
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From moseley at hank.org  Wed Mar 25 17:00:23 2009
From: moseley at hank.org (Bill Moseley)
Date: Wed, 25 Mar 2009 17:00:23 -0700
Subject: [sf-perl] Catalyst question - sharing data between sessions
In-Reply-To: <BAY140-W25E9C3E9E1121ED7C15742D4900@phx.gbl>
References: <BAY140-W8D8CAB366ADD62555FE8FD4900@phx.gbl>
	<c0d982e10903251027n738a5cb4h40a1e0620c777cf1@mail.gmail.com>
	<BAY140-W25E9C3E9E1121ED7C15742D4900@phx.gbl>
Message-ID: <20090326000022.GA2664@hank.org>

On Wed, Mar 25, 2009 at 10:34:25AM -0700, Stefan Amshey wrote:
> 
> Actually, I was merely stating fact that the stash is cleared after
> every request.  I also understand the concept of a user session, but
> what I'm looking for is a way of sharing data between users, each of
> whom is involved in a separate session, but concurrently.  I'm not
> worried about clearing the data out, only sharing it so that we
> don't have to re-load it for each session.

Sounds like caching.

You can use one of the cache plugins and then:

    $c->cache->set( $key, $value, $expires );




-- 
Bill Moseley.
moseley at hank.org
Sent from my iMutt

From parallax99 at hotmail.com  Thu Mar 26 12:21:59 2009
From: parallax99 at hotmail.com (Stefan Amshey)
Date: Thu, 26 Mar 2009 12:21:59 -0700
Subject: [sf-perl] Catalyst question - sharing data between sessions
In-Reply-To: <20090326000022.GA2664@hank.org>
References: <BAY140-W8D8CAB366ADD62555FE8FD4900@phx.gbl>
	<c0d982e10903251027n738a5cb4h40a1e0620c777cf1@mail.gmail.com>
	<BAY140-W25E9C3E9E1121ED7C15742D4900@phx.gbl> 
	<20090326000022.GA2664@hank.org>
Message-ID: <BAY140-W13BBC4DA3DE793F577566AD4910@phx.gbl>


That's what I was looking for - thanks!
   /S

-
Stefan Amshey
parallax99 at hotmail.com



> Date: Wed, 25 Mar 2009 17:00:23 -0700
> From: moseley at hank.org
> To: sanfrancisco-pm at pm.org
> Subject: Re: [sf-perl] Catalyst question - sharing data between sessions
> 
> On Wed, Mar 25, 2009 at 10:34:25AM -0700, Stefan Amshey wrote:
> > 
> > Actually, I was merely stating fact that the stash is cleared after
> > every request.  I also understand the concept of a user session, but
> > what I'm looking for is a way of sharing data between users, each of
> > whom is involved in a separate session, but concurrently.  I'm not
> > worried about clearing the data out, only sharing it so that we
> > don't have to re-load it for each session.
> 
> Sounds like caching.
> 
> You can use one of the cache plugins and then:
> 
>     $c->cache->set( $key, $value, $expires );
> 
> 
> 
> 
> -- 
> Bill Moseley.
> moseley at hank.org
> Sent from my iMutt
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm

_________________________________________________________________
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From fred at redhotpenguin.com  Thu Mar 26 12:33:01 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 26 Mar 2009 12:33:01 -0700
Subject: [sf-perl] Slides for "Evolving Tests"
Message-ID: <ad28918e0903261233o3ee36727ka77548f59266e93d@mail.gmail.com>

Big thanks to Jeff Thalhammer for the great talk on Wednesday evening.
 I've posted the slides:

http://bit.ly/11TJxs

Great to see a lot of enthusiasm at the meeting.  I think we are a
ways away from being able to take on a YAPC, but if we can keep the
momentum going, I think a workshop of some sort would be possible to
pull off.  Most of the Perl workshops are back east or in Europe, so
we could likely attract some attention with an SF Bay Area Perl
Workshop.

What would we need to make that happen?  Volunteers.  Regular meeting
attendees.  Running this group has taken more work than I anticipated.
 I never appreciated how much effort Quinn put into it until I took
the reins :)

Email me off list if you are interested in helping contribute to part
of the group operations.

Next meeting is April 28 (yeah I need to fix the meetup site, it shows
May right now).  Speaker will be David Lowe, an early SF.pm member.
Talk is "Half a dozen horrible uses for pack and unpack".  Hope to see
you there!

- Fred

From doom at kzsu.stanford.edu  Thu Mar 26 13:02:58 2009
From: doom at kzsu.stanford.edu (Joe Brenner)
Date: Thu, 26 Mar 2009 13:02:58 -0700
Subject: [sf-perl] Slides for "Evolving Tests"
In-Reply-To: <ad28918e0903261233o3ee36727ka77548f59266e93d@mail.gmail.com>
References: <ad28918e0903261233o3ee36727ka77548f59266e93d@mail.gmail.com>
Message-ID: <200903262003.n2QK2w0p044721@kzsu.stanford.edu>


Fred Moyer <fred at redhotpenguin.com> wrote:

> Big thanks to Jeff Thalhammer for the great talk on Wednesday evening.
>  I've posted the slides:
>
> http://bit.ly/11TJxs

How about his winning entry in the idiom contest?


From fred at redhotpenguin.com  Thu Mar 26 13:07:16 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Thu, 26 Mar 2009 13:07:16 -0700
Subject: [sf-perl] [job] Fwd: Perl/Mysql developer position at Like.com
In-Reply-To: <49CBDA56.3050104@gmail.com>
References: <49CBDA56.3050104@gmail.com>
Message-ID: <ad28918e0903261307pf0324fdnb42d05cb48567956@mail.gmail.com>

---------- Forwarded message ----------
From: Baris Sumengen <sumengen at gmail.com>
Date: Thu, Mar 26, 2009 at 12:41 PM
Subject: Perl/Mysql developer position at Like.com
To: Fred Moyer <fred at redhotpenguin.com>


Like.com (San Mateo) is looking for a versatile Perl/Mysql programmer
for the Search Engine Marketing (SEM) team at Like.com to join our
world-class team of Software Engineers, Research Engineers, and PhDs.
The qualifications we are looking for are as follows:

Qualifications

? Advanced knowledge of Perl. Ability to code complex tasks in a short
time and in a readable way and adapt to requirement changes quickly.
? Good knowledge of databases, schema design and SQL (especially MySQL).
? Experience with the design of web based interfaces for potential
internal demos and tools.
? Excellent analytical thinking abilities.
? BS or MS in Computer Science or similar major from a top tier school.
? Java, Javascript, Ajax knowledge and experience is a plus

Please see the following pdf for more details of the job description
and responsibilities:
http://www.barissumengen.com/LikecomPerlPosition.pdf
or visit our job listing at jobs.perl.org:
http://jobs.perl.org/job/10384

If you think someone you know is more suitable for this position,
please feel free to forward this email to them.

Thanks,
Baris Sumengen

From jeff at imaginative-software.com  Thu Mar 26 13:49:24 2009
From: jeff at imaginative-software.com (Jeffrey Thalhammer)
Date: Thu, 26 Mar 2009 13:49:24 -0700
Subject: [sf-perl] Slides for "Evolving Tests"
In-Reply-To: <200903262003.n2QK2w0p044721@kzsu.stanford.edu>
References: <ad28918e0903261233o3ee36727ka77548f59266e93d@mail.gmail.com>
	<200903262003.n2QK2w0p044721@kzsu.stanford.edu>
Message-ID: <665485C8-96A7-42C3-BA83-38914062C4A3@imaginative-software.com>


On Mar 26, 2009, at 1:02 PM, Joe Brenner wrote:

> How about his winning entry in the idiom contest?


I think they were something like this:

# Merge two hashes, allowing the latter hash to override values in the  
first.
# I sometimes use this to combine a hash of subroutine arguments with  
default values:
my %args = (%defaults, @_);


# Map one list of values to another, but only include "true" values.
# The trick is using the empty list () as opposed to undef:
my @output = map { frobulate($_) || () } @input;


Thanks for a great meeting everyone!

-Jeff



From swartz at pobox.com  Fri Mar 27 09:46:11 2009
From: swartz at pobox.com (Jonathan Swartz)
Date: Fri, 27 Mar 2009 09:46:11 -0700
Subject: [sf-perl] Fwd: UG News: $199 O'Reilly classes and a chance for
	some free passes
In-Reply-To: <ad28918e0903241236u167bb45h26b05941ec3bc89b@mail.gmail.com>
References: <LYRIS-10278226-63633-2009.03.23-16.02.42--fred#redhotpenguin.com@newsletter.oreilly.com>
	<ad28918e0903241236u167bb45h26b05941ec3bc89b@mail.gmail.com>
Message-ID: <B50E948B-8C4A-4756-84F4-4717F9E39D9E@pobox.com>

I tried to use the 'baug' code and it gave me $199 OFF of the regular  
price of $600, which is still $401.

Is it really supposed to be $199 per class, and whoever programmed the  
discount got it wrong? Or did you mean $199 off regular price?

Thanks
Jon

On Mar 24, 2009, at 12:36 PM, Fred Moyer wrote:

> This looks like a pretty good deal here.
>
>
> ---------- Forwarded message ----------
> From: Marsee Henon <marsee at oreilly.com>
> Date: Mon, Mar 23, 2009 at 5:02 PM
> Subject: UG News: $199 O'Reilly classes and a chance for some free  
> passes
> To: fred at redhotpenguin.com
>
>
> Hi there
>
> I'm happy to announce a special discount and some free passes for
> Bay Area user group members to our upcoming Master Classes in San
> Francisco March 30. Please share with your group if you think they
> might be interested. The details are below.
>
> Marsee
>
>
>
> New O'Reilly Training and Master Classes in San Francisco--
> $199 per class. And we're offering 10 free passes to classes taught
> by Scott Berkun and Steve Souders on a first come, first serve basis.
> Just use code -- ugfree -- when you register online. Sign up today.
>
> In this increasingly competitive job market, having top-of-the-line
> technical and management skills is critical. The good news is that you
> can improve your skills and learn some new techniques that will make  
> you
> irreplaceable--without breaking the bank.
>
> The first three one-day Master Classes on JavaScript, Creating High
> Performance Websites, and Project Management are scheduled for March  
> 30
> in San Francisco.
>
> Right now user group members pay only $199 per O'Reilly Master class--
> Scott Berkun on project management, Douglas Crockford on JavaScript
> coding, and Steve Souders on improving website performance.
>
> Go to <http://training.oreilly.com> and use special offer code -- baug
> -- to register at the special price of $199.00 per class. Everyone  
> in the
> class receives $100 worth of O'Reilly books.
>
>
> Here are the details:
>
>
> O'Reilly Master Class: Douglas Crockford, March 30, 2009, San  
> Francisco,
> CA JavaScript: The Good Parts Like most languages, JavaScript contains
> both good and bad parts. The bad parts keep it from becoming an  
> elegant,
> lightweight, and highly expressive language. In this class, you'll
> discover good JavaScript you can use to create truly extensible code.
> The author of "JavaScript: The Good Parts," (O'Reilly Media),  
> Crockford
> is a regular speaker at conferences on advanced JavaScript topics. He
> serves on the JavaScript 2.0 committee at ECMA. Everyone in the class
> receives $100 worth of O'Reilly books.
>
> 1-day workshop, 9am-5pm, Mar. 30
> Mission Bay Conference Center
> University of California, San Francisco (UCSF)
> 1675 Owens St. San Francisco, CA 94143
>
> For more information and to register:
> Call: (707) 827-7000 / (800) 998-9938
> http://training.oreilly.com/javascript
>
> *******************************************
>
> O'Reilly Master Class: Scott Berkun, March 30, 2009, San Francisco, CA
> Leading and Managing Breakthrough Projects Scott Berkun, author of the
> bestselling "The Myths of Innovation" (O'Reilly Media) uses valuable
> insights from the past as well as challenging in-class exercises to  
> help
> you develop the leadership skills and knowledge you need to manage
> innovative people and projects. Everyone in the class receives $100
> worth of O'Reilly books.
>
>
> 1-day workshop, 10am-5pm, Mar. 30
> Mission Bay Conference Center
> University of California, San Francisco (UCSF)
> 1675 Owens St. San Francisco, CA 94143
>
> For more information and to register:
> Call: (707) 827-7000 / (800) 998-9938
> http://training.oreilly.com/projectmanagement
>
> *******************************************
>
> O'Reilly Master Class: Steve Souders, March 30, 2009, San Francisco,  
> CA
> Creating High Performance Web Sites While working at Google and  
> Yahoo!,
> Steve Souders developed rules that cut up to 25% off response time for
> page requests. In this class, Souders, the author of the bestselling
> O'Reilly book, "High Performance Web Sites" (O'Reilly Media), explains
> those rules and shows you how you can greatly improve the  
> performance of
> your existing web pages. Everyone in the class receives $100 worth of
> O'Reilly books.
>
> 1-day workshop, 9am-5pm, Mar. 30
> Mission Bay Conference Center
> University of California, San Francisco (UCSF)
> 1675 Owens St. San Francisco, CA 94143
>
> For more information and to register:
> Call: (707) 827-7000 / (800) 998-9938
> http://training.oreilly.com/highperformancesites
>
>
> ================================================================
> O'Reilly
> 1005 Gravenstein Highway North
> Sebastopol, CA   95472
> 800-998-9938
> http://ug.oreilly.com/
> Follow us on Twitter at http://twitter.com/OReillyMedia
>
> You are receiving this email because you are a User Group
> contact with O'Reilly Media. If you would like to stop
> receiving these newsletters or announcements from O'Reilly,
> send an email to marsee at oreilly.com
> ================================================================
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm


From fred at redhotpenguin.com  Sun Mar 29 10:22:11 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Sun, 29 Mar 2009 10:22:11 -0700
Subject: [sf-perl] Fwd: UG News: $199 O'Reilly classes and a chance for
	some free passes
In-Reply-To: <B50E948B-8C4A-4756-84F4-4717F9E39D9E@pobox.com>
References: <LYRIS-10278226-63633-2009.03.23-16.02.42--fred#redhotpenguin.com@newsletter.oreilly.com>
	<ad28918e0903241236u167bb45h26b05941ec3bc89b@mail.gmail.com>
	<B50E948B-8C4A-4756-84F4-4717F9E39D9E@pobox.com>
Message-ID: <ad28918e0903291022x6dde409dx8cd38ffd76ec46af@mail.gmail.com>

I got word from Marsee that the code is working now, $199 for a full
day class.  The performance talk is by Steve Souders, creator of
YSlow.

http://training.oreilly.com/highperformancesites/

On Fri, Mar 27, 2009 at 9:46 AM, Jonathan Swartz <swartz at pobox.com> wrote:
> I tried to use the 'baug' code and it gave me $199 OFF of the regular price
> of $600, which is still $401.
>
> Is it really supposed to be $199 per class, and whoever programmed the
> discount got it wrong? Or did you mean $199 off regular price?
>
> Thanks
> Jon
>
> On Mar 24, 2009, at 12:36 PM, Fred Moyer wrote:
>
>> This looks like a pretty good deal here.
>>
>>
>> ---------- Forwarded message ----------
>> From: Marsee Henon <marsee at oreilly.com>
>> Date: Mon, Mar 23, 2009 at 5:02 PM
>> Subject: UG News: $199 O'Reilly classes and a chance for some free passes
>> To: fred at redhotpenguin.com
>>
>>
>> Hi there
>>
>> I'm happy to announce a special discount and some free passes for
>> Bay Area user group members to our upcoming Master Classes in San
>> Francisco March 30. Please share with your group if you think they
>> might be interested. The details are below.
>>
>> Marsee
>>
>>
>>
>> New O'Reilly Training and Master Classes in San Francisco--
>> $199 per class. And we're offering 10 free passes to classes taught
>> by Scott Berkun and Steve Souders on a first come, first serve basis.
>> Just use code -- ugfree -- when you register online. Sign up today.
>>
>> In this increasingly competitive job market, having top-of-the-line
>> technical and management skills is critical. The good news is that you
>> can improve your skills and learn some new techniques that will make you
>> irreplaceable--without breaking the bank.
>>
>> The first three one-day Master Classes on JavaScript, Creating High
>> Performance Websites, and Project Management are scheduled for March 30
>> in San Francisco.
>>
>> Right now user group members pay only $199 per O'Reilly Master class--
>> Scott Berkun on project management, Douglas Crockford on JavaScript
>> coding, and Steve Souders on improving website performance.
>>
>> Go to <http://training.oreilly.com> and use special offer code -- baug
>> -- to register at the special price of $199.00 per class. Everyone in the
>> class receives $100 worth of O'Reilly books.
>>
>>
>> Here are the details:
>>
>>
>> O'Reilly Master Class: Douglas Crockford, March 30, 2009, San Francisco,
>> CA JavaScript: The Good Parts Like most languages, JavaScript contains
>> both good and bad parts. The bad parts keep it from becoming an elegant,
>> lightweight, and highly expressive language. In this class, you'll
>> discover good JavaScript you can use to create truly extensible code.
>> The author of "JavaScript: The Good Parts," (O'Reilly Media), Crockford
>> is a regular speaker at conferences on advanced JavaScript topics. He
>> serves on the JavaScript 2.0 committee at ECMA. Everyone in the class
>> receives $100 worth of O'Reilly books.
>>
>> 1-day workshop, 9am-5pm, Mar. 30
>> Mission Bay Conference Center
>> University of California, San Francisco (UCSF)
>> 1675 Owens St. San Francisco, CA 94143
>>
>> For more information and to register:
>> Call: (707) 827-7000 / (800) 998-9938
>> http://training.oreilly.com/javascript
>>
>> *******************************************
>>
>> O'Reilly Master Class: Scott Berkun, March 30, 2009, San Francisco, CA
>> Leading and Managing Breakthrough Projects Scott Berkun, author of the
>> bestselling "The Myths of Innovation" (O'Reilly Media) uses valuable
>> insights from the past as well as challenging in-class exercises to help
>> you develop the leadership skills and knowledge you need to manage
>> innovative people and projects. Everyone in the class receives $100
>> worth of O'Reilly books.
>>
>>
>> 1-day workshop, 10am-5pm, Mar. 30
>> Mission Bay Conference Center
>> University of California, San Francisco (UCSF)
>> 1675 Owens St. San Francisco, CA 94143
>>
>> For more information and to register:
>> Call: (707) 827-7000 / (800) 998-9938
>> http://training.oreilly.com/projectmanagement
>>
>> *******************************************
>>
>> O'Reilly Master Class: Steve Souders, March 30, 2009, San Francisco, CA
>> Creating High Performance Web Sites While working at Google and Yahoo!,
>> Steve Souders developed rules that cut up to 25% off response time for
>> page requests. In this class, Souders, the author of the bestselling
>> O'Reilly book, "High Performance Web Sites" (O'Reilly Media), explains
>> those rules and shows you how you can greatly improve the performance of
>> your existing web pages. Everyone in the class receives $100 worth of
>> O'Reilly books.
>>
>> 1-day workshop, 9am-5pm, Mar. 30
>> Mission Bay Conference Center
>> University of California, San Francisco (UCSF)
>> 1675 Owens St. San Francisco, CA 94143
>>
>> For more information and to register:
>> Call: (707) 827-7000 / (800) 998-9938
>> http://training.oreilly.com/highperformancesites
>>
>>
>> ================================================================
>> O'Reilly
>> 1005 Gravenstein Highway North
>> Sebastopol, CA ? 95472
>> 800-998-9938
>> http://ug.oreilly.com/
>> Follow us on Twitter at http://twitter.com/OReillyMedia
>>
>> You are receiving this email because you are a User Group
>> contact with O'Reilly Media. If you would like to stop
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From josh at agliodbs.com  Sun Mar 29 14:23:29 2009
From: josh at agliodbs.com (Josh Berkus)
Date: Sun, 29 Mar 2009 14:23:29 -0700
Subject: [sf-perl] Thinking about psuedo-randomness
Message-ID: <49CFE6D1.70105@agliodbs.com>

Fred,

I've been thinking a little about the pseudo-randomness issue some, and 
I think there *is* a generalizable case.  However, can you send me your 
slides/code so that I can build on what you have rather than starting 
from scratch?

--Josh Berkus

From fred at redhotpenguin.com  Sun Mar 29 14:44:02 2009
From: fred at redhotpenguin.com (Fred Moyer)
Date: Sun, 29 Mar 2009 14:44:02 -0700
Subject: [sf-perl] Thinking about psuedo-randomness
In-Reply-To: <49CFE6D1.70105@agliodbs.com>
References: <49CFE6D1.70105@agliodbs.com>
Message-ID: <ad28918e0903291444y48bc19f4mb1fca7c8f8b967d9@mail.gmail.com>

Joe Brenner gave the randomness lightning talk, Joe?

On Sun, Mar 29, 2009 at 2:23 PM, Josh Berkus <josh at agliodbs.com> wrote:
> Fred,
>
> I've been thinking a little about the pseudo-randomness issue some, and I
> think there *is* a generalizable case. ?However, can you send me your
> slides/code so that I can build on what you have rather than starting from
> scratch?
>
> --Josh Berkus
> _______________________________________________
> SanFrancisco-pm mailing list
> SanFrancisco-pm at pm.org
> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>

From doom at kzsu.stanford.edu  Sun Mar 29 15:46:41 2009
From: doom at kzsu.stanford.edu (Joe Brenner)
Date: Sun, 29 Mar 2009 15:46:41 -0700
Subject: [sf-perl] Thinking about psuedo-randomness
In-Reply-To: <49CFE6D1.70105@agliodbs.com>
References: <49CFE6D1.70105@agliodbs.com>
Message-ID: <200903292246.n2TMkfLR009518@kzsu.stanford.edu>


Josh Berkus <josh at agliodbs.com> wrote:

> I've been thinking a little about the pseudo-randomness issue some, and
> I think there *is* a generalizable case.  However, can you send me your
> slides/code so that I can build on what you have rather than starting
> from scratch?

Here's the slides:

  http://obsidianrook.com/devnotes/talks/esthetic_randomness/



From merlyn at stonehenge.com  Sun Mar 29 19:03:26 2009
From: merlyn at stonehenge.com (Randal L. Schwartz)
Date: Sun, 29 Mar 2009 19:03:26 -0700
Subject: [sf-perl] Thinking about psuedo-randomness
In-Reply-To: <200903292246.n2TMkfLR009518@kzsu.stanford.edu> (Joe Brenner's
	message of "Sun, 29 Mar 2009 15:46:41 -0700")
References: <49CFE6D1.70105@agliodbs.com>
	<200903292246.n2TMkfLR009518@kzsu.stanford.edu>
Message-ID: <86iqlrzs0h.fsf@blue.stonehenge.com>

>>>>> "Joe" == Joe Brenner <doom at kzsu.stanford.edu> writes:

Joe> Josh Berkus <josh at agliodbs.com> wrote:

>> I've been thinking a little about the pseudo-randomness issue some, and
>> I think there *is* a generalizable case.  However, can you send me your
>> slides/code so that I can build on what you have rather than starting
>> from scratch?

Joe> Here's the slides:

Joe>   http://obsidianrook.com/devnotes/talks/esthetic_randomness/

the code in
      $tweak = $downers/$uppers;
      $uppity = int( rand(1 + $tweak) );

has a biased bias.  I think what you wanted is:

$uppity = rand($uppers + $downers) > $uppers;


-- 
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
<merlyn at stonehenge.com> <URL:http://www.stonehenge.com/merlyn/>
Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc.
See http://methodsandmessages.vox.com/ for Smalltalk and Seaside discussion

From doom at kzsu.stanford.edu  Mon Mar 30 01:56:55 2009
From: doom at kzsu.stanford.edu (Joe Brenner)
Date: Mon, 30 Mar 2009 01:56:55 -0700
Subject: [sf-perl] Thinking about psuedo-randomness
In-Reply-To: <86iqlrzs0h.fsf@blue.stonehenge.com>
References: <49CFE6D1.70105@agliodbs.com>
	<200903292246.n2TMkfLR009518@kzsu.stanford.edu>
	<86iqlrzs0h.fsf@blue.stonehenge.com>
Message-ID: <200903300857.n2U8utax021056@kzsu.stanford.edu>

Randal L. Schwartz <merlyn at stonehenge.com> wrote:

> >>>>> "Joe" == Joe Brenner <doom at kzsu.stanford.edu> writes:
>
> Joe> Josh Berkus <josh at agliodbs.com> wrote:
>
> >> I've been thinking a little about the pseudo-randomness issue some, and
> >> I think there *is* a generalizable case.  However, can you send me your
> >> slides/code so that I can build on what you have rather than starting
> >> from scratch?
>
> Joe> Here's the slides:
> Joe>   http://obsidianrook.com/devnotes/talks/esthetic_randomness/
>
> the code in
>       $tweak = $downers/$uppers;
>       $uppity = int( rand(1 + $tweak) );
>
> has a biased bias.  I think what you wanted is:
>
> $uppity = rand($uppers + $downers) > $uppers;

That's a good one (no need to worry about division by zero), but in
practice there's little difference in the two approaches.  Both have a
slight bias toward lower case (largely because of the way I initialize
the first character):

   scramble_case:
   up: 257970  down: 267406   % bias: -1.796
   scramble_case_exp:
   up: 258261  down: 267115   % bias: -1.685


That's measured like so:

#!/usr/bin/perl
# running_scramble_case                    doom at kzsu.stanford.edu
#                                          29 Mar 2009

use warnings;
use strict;
$|=1;
use Data::Dumper;

our $VERSION = 0.01;

use Getopt::Std;
my %opt = ();
getopts('d', \%opt);
my $DEBUG   = $opt{d} || 0;

use Text::Capitalize qw( scramble_case scramble_case_exp );

my $file = shift || '/home/doom/End/Dust/Texts/RafaelSabatini/1915-the_sea_hawk-seahk10.txt';

print_stats_for( 'scramble_case',     $file );
print_stats_for( 'scramble_case_exp', $file );

sub print_stats_for {
  my $routine = shift;
  my $file    = shift;
  open my $fh, '<', $file or die "$!";

  print "$routine:\n";
  my ($total_up, $total_down, $bias);
  while( my $line = <$fh> ) {
    my $transformed;
    { no strict 'refs';
        $transformed = $routine->(  $line );
    }
    print "$transformed\n" if $DEBUG;
    my $copy_1 = $transformed;
    my $copy_2 = $transformed;
    my $uppers = ( $copy_1 =~ s{ [[:upper:]] }{}xmsg );
    my $lowers = ( $copy_2 =~ s{ [[:lower:]] }{}xmsg );
    $total_up   += $uppers;
    $total_down += $lowers;
  }
  $bias = ( ($total_up - $total_down) / ($total_up + $total_down) ) * 100;
  printf "up: %4d down: %4d  %% bias: %2.3f\n", $total_up, $total_down, $bias;
}


From not.com at gmail.com  Mon Mar 30 20:27:16 2009
From: not.com at gmail.com (yary)
Date: Mon, 30 Mar 2009 20:27:16 -0700
Subject: [sf-perl] Thinking about psuedo-randomness
In-Reply-To: <200903292246.n2TMkfLR009518@kzsu.stanford.edu>
References: <49CFE6D1.70105@agliodbs.com>
	<200903292246.n2TMkfLR009518@kzsu.stanford.edu>
Message-ID: <75cbfa570903302027j30373a01q1d676f2632f67e86@mail.gmail.com>

Thanks for putting the slides on-line, lots of interesting thoughts in there.

Since Randall chimed in with his bias of bias observation, I'll chime
in with what I thought when reading the scramble_case code-

@chars = split /(?=.)/, $string;

. doesn't match newlines (unless you tell it to), and it doesn't
matter, since nothing is lost anyways.

"I thought the canonical way of splitting a string into its component
chars was 'split //'" was my next thought.

Then I thought, "Only alphas have case, non-alphas don't have to be
separated out"- so

@chars = split /(?<=[[:alpha:]])/, $string;

could conceivably save a few cycles. maybe. It also preserves the
first-letter-case bias when the string begins with non-alpha chars.

and as you mentioned, it's how you wrote perl a decade ago.

From doom at kzsu.stanford.edu  Tue Mar 31 13:38:38 2009
From: doom at kzsu.stanford.edu (Joe Brenner)
Date: Tue, 31 Mar 2009 13:38:38 -0700
Subject: [sf-perl] Thinking about psuedo-randomness
In-Reply-To: <75cbfa570903302027j30373a01q1d676f2632f67e86@mail.gmail.com>
References: <49CFE6D1.70105@agliodbs.com>
	<200903292246.n2TMkfLR009518@kzsu.stanford.edu>
	<75cbfa570903302027j30373a01q1d676f2632f67e86@mail.gmail.com>
Message-ID: <200903312038.n2VKccON061672@kzsu.stanford.edu>

yary <not.com at gmail.com> wrote:

> Thanks for putting the slides on-line, lots of interesting thoughts in there.
>
> Since Randall chimed in with his bias of bias observation, I'll chime
> in with what I thought when reading the scramble_case code-
>
> @chars = split /(?=.)/, $string;
>
> . doesn't match newlines (unless you tell it to), and it doesn't
> matter, since nothing is lost anyways.
>
> "I thought the canonical way of splitting a string into its component
> chars was 'split //'" was my next thought.

Yes, precisely.  I have no idea why I used that pattern in there ten
years ago.  I verified that it's functionally identical to "split //"
(on single-line strings, anyway) but I left it that way anyway -- if I
wasn't doing it as a lightning talk I would've invited comments on that
sort of thing.

> Then I thought, "Only alphas have case, non-alphas don't have to be
> separated out"- so
>
> @chars = split /(?<=[[:alpha:]])/, $string;
>
> could conceivably save a few cycles. maybe. It also preserves the
> first-letter-case bias when the string begins with non-alpha chars.

Interesting... it's a slightly odd split, that works like this:

          't',
          'h',
          'e',
          ' l',
          'a',
          'w',
          's',
          ' f',
          'o',
          'r',
          ' y',
          'o',

My first thought that there would be a problem with leaving the
whitespace at the start of the string, but of course "uc" and "lc"
act on the entire string, so there's no problem there.

Of course, the efficiency of this routine doesn't really matter that
much (it only takes about three seconds for me to process an entire
Rafael Sabatini novel), but what the hell, let's see if the more unusual
pattern match gains us something with fewer cycles of uc/lc
operations...

Not bad, looks like almost a 15% speedup:

  Benchmark: timing 10 iterations of alpha_split, silly_split, standard_split...
  alpha_split: 13 wallclock secs (12.84 usr +  0.01 sys = 12.85 CPU) @  0.78/s (n=10)
  silly_split: 16 wallclock secs (15.44 usr +  0.01 sys = 15.45 CPU) @  0.65/s (n=10)
  standard_split: 15 wallclock secs (15.04 usr +  0.00 sys = 15.04 CPU) @  0.66/s (n=10)




sub silly {
  open my $fh, '<', $file or die "$!";
  while( my $line = <$fh> ) {
    my $ret = scramble_case_silly( $line ); #    @chars = split /(?=.)/, $string;
  }
}

sub standard { # as usual
  open my $fh, '<', $file or die "$!";
  while( my $line = <$fh> ) {
    my $ret = scramble_case( $line );       #    @chars = split //, $string;
  }
}

sub alpha {
  open my $fh, '<', $file or die "$!";
  while( my $line = <$fh> ) {
    my $ret = scramble_case_alpha( $line );  #  @chars = split /(?<=[[:alpha:]])/, $string;
  }
}


From josh at agliodbs.com  Tue Mar 31 15:37:36 2009
From: josh at agliodbs.com (Josh Berkus)
Date: Tue, 31 Mar 2009 15:37:36 -0700
Subject: [sf-perl] Thinking about psuedo-randomness
In-Reply-To: <200903292246.n2TMkfLR009518@kzsu.stanford.edu>
References: <49CFE6D1.70105@agliodbs.com>
	<200903292246.n2TMkfLR009518@kzsu.stanford.edu>
Message-ID: <49D29B30.7060504@agliodbs.com>

On 3/29/09 3:46 PM, Joe Brenner wrote:
> Josh Berkus<josh at agliodbs.com>  wrote:
>
>> I've been thinking a little about the pseudo-randomness issue some, and
>> I think there *is* a generalizable case.  However, can you send me your
>> slides/code so that I can build on what you have rather than starting
>> from scratch?

Ok, so I'm thinking about the more complex case than capitalization. 
That is, the case which would cover:

song tracks, albums & artists
pictures & tags
people & departments

etc.

All of these can be broken down into:
1) entity
2) group memberships
3) serial placement in the first group (i.e. order)
4) outliers (thanks Joe for this concept)

(4) is a difficult concept, because while 1-3 are permanent data, 4 only 
applies to the specific randomizer run (that is, this particular 
playlist, picture page or committee).  So since it's actually a property 
of the run, we'll ignore it for now.  For the rest of the data, all of 
the above cases can be represented as:

Songs:
("Darkness") ("Up","Peter Gabriel","Rock") (1)
("Growing Up") ("Up","Peter Gabriel","Rock") (2)
("Sky Blue") ("Up","Peter Gabriel","Rock") (3)
("Have a Cigar")("Wish You Were Here","Pink Floyd","Rock") (3)

Pictures:
("GG Bridge Below") ("GG Bridge","Bridges","Architecture","SF") (1)
("GG Bridge East Side") ("GG Bridge","Bridges","Architecture","SF") (2)

People:
("Sam Joe") ("HR","Management","Atlanta","10-20yrs") (N/A)
("Mike Mike") ("HR","Staff","Atlanta","1-3yrs") (N/A)
("Kelly Susan") ("IT","Staff","Livermore","3-5yrs") (N/A)

So, there's a couple interesting things with this reduction.  One is 
that in some cases group membership is heirarchical, but I don't think 
that matters for picking "prandom" entries.  Second is that there are 
some data sets for which serial order doesn't matter or doesn't exist.

I think Joe's try/pick method is sound.  I like the idea of regarding 
the entities as a stream, and testing each new entity against the prior 
entities.


get # of tries items randomly
	foreach:
	if outlier
		if first item drop from list else
		if reached max # outliers drop from list else
		score is (max # of groups / 2)
	else
		compare against previous # selections
		each "group" in common = +1
		if 1st group in common
				+2 for being adjacent serially
	add item with lowest score to the list
	next item
		
I think that algorithm works for the stream concept.
		
The other possibility is the "whole list" concept, where you have a 
static small list (like 6 or 10 items) and want them to be prandomly 
selected.  That would go like this:

determine max number of groups possible (maxgroups)
decide mingroups required and max_outliers

sort items in random order
	if the first item is an outlier, shift it off
	if more than max_outliers in first list_size, shift outliers off
	if two items are serially in sequence, shift the second one
	sum number of groups represented by first list_size items
	while numgroups < mingroups
		calculate the item with the most groups
			in common with other items
			shift it off
		shift off serially ordered items and extra outliers
		recalculate numgroups

The problem with this second method is that it's possible for it to 
never complete; presumably you'd lower mingroups and start over.

Just my thoughts so far.

--Josh Berkus