Re: Horizontal inheritance mismatch between WebObjects 5.4 and 5.3 [ was: SQL generation doesn't conform to entity inheritance]
Re: Horizontal inheritance mismatch between WebObjects 5.4 and 5.3 [ was: SQL generation doesn't conform to entity inheritance]
- Subject: Re: Horizontal inheritance mismatch between WebObjects 5.4 and 5.3 [ was: SQL generation doesn't conform to entity inheritance]
- From: Chuck Hill <email@hidden>
- Date: Wed, 2 Feb 2011 17:38:38 -0800
On Feb 2, 2011, at 5:33 PM, Lachlan Deck wrote:
> On 03/02/2011, at 8:59 AM, Mike Schrag wrote:
>
>> i still would like to see what entity.primaryKeyRootName returns for each ... i don't recall what the impl was in 5.4.3 and I don't have it checked out at the moment, but i'm pretty sure that method is the only thing that matters here.
>
> The impl in 5.4.3 is wrong. Essentially 5.4.3 introduced a regression, which I recall checking in a fix for in wonder,
I see this, but nothing else in ERXEntity related to this:
public boolean hasExternalName() {
// (ldeck) radar://6592526 fix for 5.4.3 regression which assumed that any parent entity that is abstract has no external name!
return externalName() != null && externalName().trim().length() > 0;
}
Chuck
> and I believe it's fixed in 5.4.3.1 :) like this:
> if (parent is abstract) {
> return my external name.
> }
>
> Which is just wrong. This was particularly a problem for Vertical Inheritance where various fields ought to have resolved to the parent entity's table (but didn't).
>
> I've never tested horizontal inheritance but you can fix it by:
> a) subclassing EOEntity and overriding primaryKeyRootName etc, or better
> b) use Wonder and if Horizontal Inheritance is a problem, fix it there for all :)
>
> with regards,
> -
>
> Lachlan Deck
>
>
>
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--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
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