Re: best stategry: check before create

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From: Perrin Harkins
Subject: Re: best stategry: check before create
Date: 15:58 on 18 Mar 2005
On Fri, 2005-03-18 at 00:34 -0800, Ofer Nave wrote:
> I appreciate the help, but I think I'm going to try a different 
> strategy.  I think I'll explictly 'search' and then 'create' if the 
> search yields 0 results.  Somehow that feels cleaner.

Keep in mind that there's a race condition in that strategy.  Someone
could create a record between your search and create.  (This is true for
find_or_create too.)  You need to either be prepared for possible (rare)
failures in the create step, or lock the tables for the length of the
search and create.

- Perrin

best stategry: check before create
Ofer Nave 07:10 on 18 Mar 2005

Re: best stategry: check before create
Ofer Nave 07:14 on 18 Mar 2005

Re: best stategry: check before create
Jim Mozley 08:21 on 18 Mar 2005

Re: best stategry: check before create
Ofer Nave 08:34 on 18 Mar 2005

Re: best stategry: check before create
Perrin Harkins 15:58 on 18 Mar 2005

Re: best stategry: check before create
Ofer Nave 22:04 on 18 Mar 2005

Re: best stategry: check before create
=?ISO-8859-1?Q?Ask_Bj=F8rn_Hansen?= 07:22 on 18 Mar 2005

Re: best stategry: check before create
Ofer Nave 07:36 on 18 Mar 2005

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