Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I am writing a small application in WPF. It allows me to save and read data from db. It has 3 tiers (Business logic, Presentation layer, and Data Access). I use database-first approach and Entity Framework has generated a model for me.
My question is where I should store my .edmx generated model?
If I put it in the Data Access I will need to write some duplicate code in my Business logic, and if I put this model in the Business Logic then what should I store in the Data Access tier?
The Entity Framework model most logically belongs in the data access layer, I believe. I’ve typically used a Data Service wrapper on top of EF, then you can initiate your transactions, perform business logic validation, etc. at or above that layer. Some additional info on this here.
There is an interesting slide on EF and the data access layer here.