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Re: restricting qualifiers and join entities
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Re: restricting qualifiers and join entities


  • Subject: Re: restricting qualifiers and join entities
  • From: Lachlan Deck <email@hidden>
  • Date: Thu, 5 Jun 2008 07:47:12 +1000

Hi Ray,

On 05/06/2008, at 4:07 AM, Ray Kiddy wrote:

On Jun 3, 2008, at 7:26 PM, Lachlan Deck wrote:

Hi there,

Say I have entities Foo and Bar (both of which have an attribute isDeleted) and a join FooBar and I create restricting qualifiers for Foo and Bar of (isDeleted IS NULL OR isDeleted = 0).

Foo.fooBars() still fetches all fooBars even if pointing to a Bar that cannot be instantiated due to the restricting qualifier.

So my question is: should EOF filter such joins automatically (i.e., should I file a bug) or is it just up to me to auto-apply these restricting qualifiers?

with regards,
--

Lachlan Deck

I have tried this kind of thing before, and may have actually taken this to ridiculous extremes. I find that if I change values in the eo in certain ways, I need to make the editing context (and sometimes all editing contexts) forget the object so that the "misdirection" I have has an effect after the fault is tripped.

In my case, this doesn't seem to be relevant as it's happening on initial fetch after the app is launched (and the change in state occurs in another app).


I often find I have to forget the object more than I think I should have to. Usually, though, I want to finish with something and that wins over figuring why I am having to jump through these hoops again.

Thanks for the note. I do actually invalidate each shared-ec entity records periodically.


with regards,
--

Lachlan Deck
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References: 
 >restricting qualifiers and join entities (From: Lachlan Deck <email@hidden>)
 >Re: restricting qualifiers and join entities (From: Ray Kiddy <email@hidden>)

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