Question

I have two entities – UserObj and Producer.

UserObj stores user-related profile data
Producer is a company that a userobj can be associated with. To associate these two I wanted to make an entity that lets me access the data of each from one entity.

I’m trying to link the two – but I’m not quite sure how to do it and I bet it is something small. Thanks for any and all help!

ProducerUser

    public class ProducerUser
{
    [ForeignKey("UserObj")]
    public Guid UserObjID { get; set; }
    [ForeignKey("Producer")]
    public int ProducerID { get; set; }

    public virtual UserObj UserObj { get; set; }
    public virtual Producer Producer { get; set; }

}

UserObj

    public class UserObj : Contact
{

    [Key]
    //public override string Email { get; set; }
    public Guid UserObjID { get; set; }
    [Display(Name = "First Name")]
   // [Required]
    public string FirstName { get; set; }
  //  [Required]
    [Display(Name = "Last Name")]
    public string LastName { get; set; }
    public int UserTypeID { get; set; }

    public virtual UserType UserType { get; set; }

    public static UserObj GetUserObj(string GUID, vfContext db)
    {
        Guid guidUser = new Guid(GUID);
        return db.UserObjs.Find(guidUser);
    }

    public string GetFullName()
    {
        return this.FirstName + " " + this.LastName;
    }

}

Producer

    public class Producer : Contact
{
    [Key]
    public int ProducerID { get; set; }
    public string Name { get; set; }
    public string Twitter { get; set; }


    public virtual ICollection<Wine> Wines { get; set; }

}

Answer 1

To establish a many to many relationship add ICollection<> on both sides of the relationship. In your case:

To the class Producer add

public virtual ICollection<UserObj> UserObjs { get; set; } 

To the class UserObj add

public virtual ICollection<Producer> Producers { get; set; }

After that you can remove the declaration of the class ProducerUser. EF will generate it for you.