Entity Framework - restrict users access / inject business rules

Question

Does anyone know of any way to insert in business validation rules within entity frmework? Ideally I want to use dynamicData across some portions of a EF model, and then handle securing access with the EF model itself.

For example, if looking at orders, I want to add in a rule that customers can only view their own companys orders.

Is this possible?

Answer 1

We do it with the Service and Repository patterns. There's a basic example here [PDF]. Regading Dynamic Data, I strongly suggest binding to view models, not entities.