Question

Possible Duplicate:
Does every Core Data Relationship have to have an Inverse?

I am following the Core Data tutorial by Ray Wenderlich.

In his example he sets up two entities and creates a one-to-one relationship between them. He then states:

Apple recommends that whenever you create a link from one object to
another, you create a link from the other object going back as well.

My question is, if I create EntityA that has a to-many relationship to EntityB, do I need to link back from EntityB to EntityA?

Answer 1

Well, I was having a bit of a brain fart but I found my answer.

The answer is YES! You do have to set a link going back (inverse).

Here is what my model looked like before setting the links back:

After setting the links back it looks a bit cleaner:

Here is what the inspector settings look like if anyone else is having the same problem: