adding a foreign key with Code First migration

Question

I have an error when trying to update my database after adding a migration.

Here are my classes before add-migration

public class Product
{
    publi         


        

Answer 1

I'm not sure if this topic is still actual, but at least with EF 6 you can do the following to assign default value into a new foreign key.

This is how EF create a new foreign key by default:

            AddColumn("dbo.Table", "AnotherTableId", c => .Int(nullable: false));
            CreateIndex("dbo.Table", "AnotherTableId");
            AddForeignKey("dbo.Table", "AnotherTableId", "dbo.AnotherTable", "Id");

Just change it as below

            AddColumn("dbo.Table", "AnotherTableId", c => 
            { 
                var model = c.Int(nullable: false);
                model.DefaultValue = 1;
                return model; 
            });
            CreateIndex("dbo.Table", "AnotherTableId");
            AddForeignKey("dbo.Table", "AnotherTableId", "dbo.AnotherTable", "Id");