[pm-h] DBIX::Class - blobs

todd.e.rinaldo at jpmorgan.com todd.e.rinaldo at jpmorgan.com
Tue Apr 15 10:53:55 PDT 2008


Robert, 

What about the code I saw in the meeting where you were doing a de-blob
the image/bytea field? Do I remember this wrong?


-----Original Message-----
From: houston-bounces+todd.e.rinaldo=jpmorgan.com at pm.org
[mailto:houston-bounces+todd.e.rinaldo=jpmorgan.com at pm.org] On Behalf Of
Robert Boone
Sent: Tuesday, April 15, 2008 9:25 AM
To: Houston.pm located in Houston, TX.
Subject: Re: [pm-h] DBIX::Class - blobs


I asked on the #dbix-class irc channel and got this reply:

castaway:
dbic does not do it, the dbd backend does (quote numerics that is)
iirc you may have to figure out bind_params.. I know theres a
patch/thing for bind_params for PGs bytea, but not about numerics
[also look in ::Storage::DBI::Pg for blob stuff
iirc theres a pg-specific thing for that too



On Tue, Apr 15, 2008 at 7:57 AM,  <todd.e.rinaldo at jpmorgan.com> wrote:
>
>
>
> Hi,
>
> I've taken the plunge and am attempting to grok DBIx::Class, with
respect to
> Sybase. 2 bugs are hindering my progress. The latter has got me at a
pause.
> I know in one of the Catalyst/DBIx::Class presentations given (I think
it
> was Robert's?), a solution was provided for it.
>
> 1. Sybase goes nanners when you try to quote a numeric in a where
clause.
> DBIx::Class seems to insist on doing this. So for instance, column XXX
is
> numeric, so in my DBIC code I have: XXX => 5 for my search criteria. But
> DBIC wants to execute the following SQL: where XXX = "5". This makes
Sybase
> complain that I can't do the comparison without an explicit convert
call.
> I'm working around this by doing a really ugly thing in DBIC code:   XXX
=>
> \' = 1'.
>
> 2. The real stumper is automatically decoding a blob value and inflating
it
> into the column. At the moment, I'm just stabbing at it. Can someone
give me
> an example of how to accomplish this?
>
> Thanks,
> Todd
>
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