I am still starting with Entity Framework Code First. I want to be able to select a Resource from list when creating a new resource. How do I reference a Resource with a Resource model.
public class Resource
{
public int ResourceId { get; set; }
[Required]
[DataType(DataType.EmailAddress)]
[EmailAddress]
public string EmailAddress { get; set; }
[Required]
public string Password { get; set; }
public string FullName { get; set; }
public int TimeManagerId { get; set; }
public int TravelManagerId { get; set; }
public int OvertimeManagerId { get; set; }
public int AbsenceManagerId { get; set; }
public virtual Resource TimeManager { get; set; }
public virtual Resource TravelManager { get; set; }
public virtual Resource OvertimeManager { get; set; }
public virtual Resource AbsenceManager { get; set; }
}
I think you're pretty close! If you want to do this by convention, you can change the foreign keys in your model to the form of [navigation property name][principal primary key property name]. Specifically, change Id
to ResourceId
so it matches the primary of the table you're referencing (which happens to be itself)...
public int TimeManagerResourceId { get; set; }
public int TravelManagerResourceId { get; set; }
public int OvertimeManagerResourceId { get; set; }
public int AbsenceManagerResourceId { get; set; }
Since you're just starting with EF code first, I'd recommend you install the Entity Framework Power Tools. You'll be able to right-click on the .cs file containing your DbContext, and it'll generate a read-only diagram of the mappings.
Try it out with your current model... right-click on entity in the diagram and view Table Mappings. You'll see EF wasn't able to figure out your foreign keys and created 4 more for you. Once you make the changes above, generate the diagram again and see the difference.
Edit: Docs on code first conventions... http://msdn.microsoft.com/en-us/data/jj679962.aspx
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