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Re: Bindings From 2 Entities - How?
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Re: Bindings From 2 Entities - How?


  • Subject: Re: Bindings From 2 Entities - How?
  • From: Chuck Hill <email@hidden>
  • Date: Wed, 05 Mar 2003 12:34:16 -0800

At 08:23 PM 05/03/2003 +0000, Jonathan Fleming wrote:
>>Sounds like the to-one from TbNavPageContentPosition to TbNavPage is either
>>not modelled, or not done correctly.  However, modelling back pointing
>>relationships from lookup tables to the objects using them can be a real
>>drag on performance.
>
>This is a table that only moderaters will be able to edit so I don't think
>it will be such a problem, unless you think otherwise.
>
That depends on how many rows are in each table.


>>You never said what EO
>>EOQualifier qualifier =
>>EOQualifier.qualifierToMatchAllValues(queryBindings);
>>was fetching.
>
>it's fetching TbNavPageContentPosition
>
Why?  Isn't this a lookup list?  I'm clear on what you are doing this for.
I don't usually fetch a lookup list then navigate to other records.
Usually you fetch other records and navigate to the name in the list.


>>Perhaps the key path you want goes the other way:
>>navPageName.name?
>
>No, the path is tbNavPageContentPosition.tbNavPage.navPageName
>
The content position is the most important?  It knows the NavPage which
knows the NavPageName?  Shouldn't that be NavPage knows the NavPageName and
NavPage which knows the NavPageContentPosition, but NavPageName and
NavPageContentPosition don't know (or about) each other?


Chuck


--

Chuck Hill                                 email@hidden
Global Village Consulting Inc.             http://www.global-village.net
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 >Re: Bindings From 2 Entities - How? (From: "Jonathan Fleming" <email@hidden>)

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