I have a small Umbraco 7 setup where i store a lot of training exercises (sailing) for a iOS app. I would like to implement a like/heart/(or what ever symbol) counter to collect which exercises is great and which are not.

How would you implement (datawise) this in Umbraco?

I have the following concepts

• Simple number counter as a property on each exercise (on like increment with 1)
• A issolated datatype (called Like) which can pick a specifik exercise
• A user which can relate to multiple exercises (the relation would be likes)