Question

I have three tables: Items, Category and the junction table CategoryItems. Items and Category have a many to many relationship.

CategoryItems have three columns: Category_Id, Item_Id and Position.

How do i use Position to sort my items with Entity Framework?

I am using this model builder:

modelBuilder
.Entity<Category>()
.HasMany(c => c.Items)
.WithMany();

Answer 1

I ended up using this for the loading of a categories items:

 public IEnumerable<Item> Items
    {
        get
        {
            using (var context = new CatalogueContext())
            {
                var ids = context.Database.SqlQuery<int>("SELECT Item_Id FROM CategoryItems WHERE Category_Id = " +
                                                         this.Id + " ORDER BY Position");
                foreach (int id in ids)
                    yield return context.Items.Find(id);

            }
        }
    } 

And then using an SQL-query to change the position.