[#TRAILS-78] Editing a child object from a indexed list "child" collection creates duplicates.

Trails

Editing a child object from a indexed list "child" collection creates duplicates.

Created: 02/Jul/07 10:45 AM Updated: 03/Sep/07 12:54 PM

Component/s:

trails-core, trails-hibernate

Affects Version/s:

None

Fix Version/s:

1.1.0

Time Tracking:

Not Specified

Description

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If the child collection is an indexed list when you edit a child object and go back to its parent the object gets added to the list twice, in fact is more than twice, it gets added to the list every time you edit it.

This bug does not affect Trails 1.0 or Sets, and if you are using a non indexed list the bug may not seem too big.

To see the bug in action, lunch the "simple" example, edit a catalog and then add categories to it.

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Alejandro Scandroli - 02/Jul/07 03:39 PM

a workaround (from the user's point of view) is to use an "add" method

public void addCategory (Category category) {
		if (!getCategories().contains(category)) {
			getCategories().add(category);
		}
	}

Trails will automagically detect that this method exists and it will use it for adding child objects to the collection.

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Alejandro Scandroli - 03/Sep/07 12:54 PM

fixed in svn rev 739