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zejojo69
 Post subject: Alias and FilterJoinTable
PostPosted: Thu Aug 02, 2012 7:41 am 
Newbie

Joined: Thu Aug 02, 2012 7:21 am
Posts: 1
Hello,

Is there a way to access attributes of an entity in a @FilterJoinTable clause ?

Something like :

Code:
class Bar{

@ManyToMany(cascade = CascadeType.ALL)
@FilterJoinTable(name = "fooFilter", condition = "foos_id in (select o.foo_id from Other o where o.bar_id = {alias}.id))
List<Foo> foos;

@Id
Long id;
}


I tried to use latest 4.1.5.SP1 version (cf. this discussion: http://www.mailinglistarchive.com/html/hibernate-dev@lists.jboss.org/2012-06/msg00018.html) and SqlFragmentAlias, no success (The problem remains : {alias} refers to the join table(Bar_Foo), not to the root Bar entity).

Thanks !
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rworsnop
 Post subject: Re: Alias and FilterJoinTable
PostPosted: Tue Aug 28, 2012 10:36 am 
Newbie

Joined: Thu Mar 31, 2005 5:01 pm
Posts: 16
The Bar entity is not included in the SQL generated for resolving the many-to-many, so you're not going to be able to access it.

But the ID you need is in the join table (Bar_Foo.BAR_ID), so this will work:

Code:
   
@FilterJoinTable(name="fooFilter", condition="{f}.foos_id in(select o.foo_id from Other o where o.bar_id = {f}.bar_id)",
      aliases={@SqlFragmentAlias(alias="f",table="Bar_Foo")})
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