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Re: many-to-many relationship and qualifiers
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Re: many-to-many relationship and qualifiers


  • Subject: Re: many-to-many relationship and qualifiers
  • From: Francesco Romano <email@hidden>
  • Date: Wed, 10 Dec 2008 17:59:38 +0100

For the second question I solved...
I changed the datasource for the displayGroup: now I user the E12 instead of Ent2.


By the way... a question regarding WOBatchNavigationBar..
It's very useful, but... it displays the number of objects in the entity, not the number of objects matching the qualifier... Is there a way to show that number?



On 10/dic/08, at 17:43, Francesco Romano wrote:

Hi...

I read in the list that if I need an attribute in a many-to-many relationship I cannot create a "flattern" relationship.
So I created a simple n-to-1 1-to-n.


Now.. I don't understand if I need to do some more "work" in my classes...


And... another thing: qualifier.

Let's call Ent1 and Ent2 the 2 entities above and E12 the relation entity.

I want to fetch all the records in Ent2 that are linked to a particular Ent1.
I can't do it.. because I've an array and I don't know how to compare an array with a single value...


I tried something like Ent2.E12.eq(Ent1.E12).and(Ent1.attr1.eq(myString)) but it did not compile


Francesco

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