I have a User table and a Roles table. There is a automatically generated UsersRoles link table which contains the Id from the User and Roles tables. This is generated using the following code:
modelBuilder.Entity<User>()
.HasMany(u => u.Roles)
.WithMany(r => r.Users)
.Map(c => {
c.MapLeftKey("UserId");
c.MapRightKey("RoleId");
c.ToTable("UsersRoles");
});
When I am trying to add an unrelated Entity and call Context.SaveChanges()
I receive the following error:
Violation of PRIMARY KEY constraint 'PK_UsersRoles'. Cannot insert duplicate key in object 'dbo.UsersRoles'. The duplicate key value is (2beaf837-9034-4376-9510-b1609c54efbe, dcd16d00-d46e-4d48-8328-3e7b35b11ccf). The statement has been terminated.
I have checked the Conext.ChangeTracker.Entries()
for the items mentioned in the error and the Entity State is marked as Unchanged.
The only Entity that is marked as Added is the new record I am trying to add, everything else is marked as Unchanged.
Code for adding Entity:
RoleGroup group = Context.RoleGroups.Create();
group.Title = roleGroupName;
Context.Set<RoleGroup>().Add(group);
Context.SaveChanges();
Does anyone know why this is happening?