While working on a parent and child (one-to-many) nested object recently, I encountered a problem with the child object not deleted when I tried to remove the relationship even when I set the cascade option to all. After looking around and found that Oren Eini have provided a good explanation on the different option.
To delete the children object when the relationship is removed, the all-delete-orphans option have to be used. This will removed all child objects and the children will not be an orphan (without parent).
I have to agree with him that cascade option required careful attention and can be easily overlook. It can create some bugs for you if your code are not properly tested.
To delete the children object when the relationship is removed, the all-delete-orphans option have to be used. This will removed all child objects and the children will not be an orphan (without parent).
I have to agree with him that cascade option required careful attention and can be easily overlook. It can create some bugs for you if your code are not properly tested.
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