I have something like this:
public class Gadget {
public int Id { get; set; }
public string Name { get; set;}
public int SuperHeroId { get; set; }
}
public class SuperHero {
public int Id { get; set; }
public virtual ICollection<Gadget> Gadgets { get; set; }
}
Notice that while a Gadget is "owned" by a Superhero (and therefore there's an FK in the database), my domain model does not have a hard reference in that direction.
When I delete a superhero I would like to also delete all their gadgets. How would I do this?
My research indicates that if I had that reference it would be something like
mapping.Entity<SuperHero>()
.HasMany(x => x.Gadgets)
.WithRequired(x => x.SuperHero) //this is the part I can't do
.WillCascadeOnDelete();
but as noted, that doesn't work with my domain model.
mapping.Entity<SuperHero>()
.HasMany(x => x.Gadgets)
.WithRequired() //use the override that doesn't
//specify a navigation property
.WillCascadeOnDelete();
http://msdn.microsoft.com/en-us/library/gg696502(v=vs.113).aspx
Configures the relationship to be optional:required without a navigation property on the other side of the relationship.
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