I'm trying to write an iOS application that tracks how much weight your lifting at the gym but I'm struggling to create my Core Data schema. At the moment i have an Exercise Entity that stores info about a specific exercise (e.g. Bicep Curl) and i have a workout Entity that just has a name & image. The workout entity has a many to many relationship with the exercise entity. what i need to incorporate is 'session' functionality - the ability for a user to complete a workout and store the weights he/she lifted in a particular workout. E.g. i want to say that i completed my 'Leg Day' workout and lifted these weights for each exercise. So my Core Data looks like this at the moment.
How would i go about storing the session data? I feel that the session must have a one to one relationship with a workout but that doesn't let me add results for each exercise in the workout... I also think i might need a dictionary to store the weights for each exercise.
Any help would be greatly appreciated as i have never really learnt about databases before.
Thanks
EDIT: Ive changed my schema to look like this
