Re: order of INSERTs
Re: order of INSERTs
- Subject: Re: order of INSERTs
- From: Ramsey Gurley <email@hidden>
- Date: Mon, 02 Mar 2015 09:45:54 -0700
Blind chance. Use deferred constraints. If your DB doesn’t have deferred constraints, you might have some success by adding the following to your properties file
com.webobjects.eoaccess.ERXEntityDependencyOrderingDelegate.active=true
But that is only if your database is lame and you can’t use deferred constraints. It sounds like you can. Use deferred constraints.
On Mar 2, 2015, at 6:42 AM, OC <email@hidden> wrote:
> Hello there,
>
> the order of INSERT adaptor ops, it is essentially random or is there some logic behind?
>
> Months ago, on a server the admin added a DB foreign key restraint (immediate not deferrable, alas); since it worked all right, they did not bother to tell me. I do not re-order adaptor ops in the delegate method (but I do log them), and today I've found that for the first time in months, the code instead of
>
> INSERT T_AUCTION
> INSERT T_AUDIT
>
> as always so far now did generate those two in the opposite order -- which of course crashed, for there's the FK restraint in T_AUDIT.
>
> The solutions are more or less self-evident (change the restraint to deferred, or re-order the ops; have I forgot anything?), but I do wonder: might the sudden change be a result of something I did in my code? Or was it a pure blind chance that it did work so far without a glitch?
>
> Thanks and all the best,
> OC
>
>
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