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Problem saving Many-to-Many relationship changes
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Problem saving Many-to-Many relationship changes


  • Subject: Problem saving Many-to-Many relationship changes
  • From: Merul Patel <email@hidden>
  • Date: Wed, 22 Oct 2003 13:15:04 +0100

Hi,

I have a component which works fine for editing, inserting and deleting EnterpriseObjects of type A.

I've modified it to allow me to also edit a many-to-many relationship between EOs of type A and EOGenericRecords of type B, by using a WODisplayGroup to fetch all the objects of type B, and then using a WOCheckBoxList to assign the selected type B objects to the type A object. I've assigned the selections binding for the WOCheckBoxList to A.AB many-to-many relationship.

The many-to-many relationship and the WOCheckBoxList appear to be configured correctly, and when I commit changes to be saved, the changes are committed to the dbase by the EOEditingContext.saveChanges() call. However, subsequent edits to the many-to-many relationship aren't saved, even though I can see that the editingContext has detected the changes by calling EOEditingContext.updatedObjects().

If I create another session to the application, then the same thing happens. I can make changes to the many-to-many relationship initially, but then subsequent changes fail.

The above led me to believe I should refault the objects in the editing context, but this has made no changes.

Am I missing something?

TIA,

Merul
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