In EF Code First, How to have ApplicationUser UserId as foreign key in a custom entity? - sql

Question

My Custom Entity:
public class Order
{
[Key,Column(Order=0)]
public int OrderId { get; set; }
//Other properties
public string UserId { get; set; }
[ForeignKey("UserId")]
public virtual ApplicationUser User { get; set; }
}
ApplicationUser Class:
public class ApplicationUser : IdentityUser
{
//one to many relation
public virtual List<Sandwich.Order>Order { get; set; }
public async Task<ClaimsIdentity>
GenerateUserIdentityAsync(UserManager<ApplicationUser> manager){..}
}
I have two DbContexts (One default of AppUser and One I created):
public class ADbContext : DbContext
{
public ADbContext() : base("DefaultConnection")
{
}
public DbSet<Toppings> ToppingsDbset { get; set;}
//I had to comment the line below to in order to work with ToppingDBset but then I can't work with OrderDBSet
//public DbSet<Order> OrderDbSet { get; set; }
}
//Default AppDbContext
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public ApplicationDbContext()
: base("DefaultConnection", throwIfV1Schema: false)
{
}
public static ApplicationDbContext Create()
{
return new ApplicationDbContext();
}
}
When I run it just working with ApplicationDbContext it works fine and creates following table with all the relationships.
enter image description here
My problem: is when I try to work with ADbContext with un-commented public DbSet<Order> OrderDbSet { get; set; }
{"One or more validation errors were detected during model generation:\r\n\r\n.IdentityUserLogin: : EntityType 'IdentityUserLogin' has no key defined. Define the key for this EntityType.\r\n.IdentityUserRole: : EntityType 'IdentityUserRole' has no key defined
Solutions I tried:
//Adding following method on ADbContext
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Conventions.Remove<OneToManyCascadeDeleteConvention>();
modelBuilder.Conventions.Remove<ManyToManyCascadeDeleteConvention>();
}
I am trying to have all tables created in one Database. I am using EF6.

Answer 1

try this in OnModelCreating(DbModelBuilder modelBuilder):
modelBuilder.Entity()
.HasMany(c => c.Order)
.WithOne(e => e.ApplicationUser);
refrence

Answer 2

Solved :
In DbContext file, I added OrderDbSet within ApplicationDbContext class
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
public DbSet<Order> OrderDbset { get; set; }
public ApplicationDbContext()
: base("DefaultConnection", throwIfV1Schema: false)
{
}
}