I’ve got two entities, one named exercise and the other named workout. I would like to store several different exercises in each workout object.
What is the correct logic here? Create an array of exercises in each workout?
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I’ve got two entities, one named exercise and the other named workout. I would like to store several different exercises in each workout object.
What is the correct logic here? Create an array of exercises in each workout?
You can’t create arrays in Core Data. You can simulate them, however, using To-Many Relationships. Add a relationship to your
Workoutentity called, say,exercises. Then set its Destination to theExerciseentity and check the “To-Many Relationship” checkbox. Note that the exercises will be stored as anNSSet, not anNSArray, so they will not be ordered. If you want them to be in a specific order, I would recommend using theBWOrderedManagedObjectsubclass.