I'm trying to create an optional foreign key using Entity Framework 7 and the Fluent-API. In EF v6.x we had the option to add this using .WithOptional
or .HasOptional
, but I cant find any equivalent functionality in EF 7.. any ideas?
Br, Inx
Found the answer.. you can pass in "false" as a parameter to .IsRequired().. For instance:
EntityShortcut<ContentEntity>()
.HasMany(e => e.Children)
.WithOne(e => e.Parent)
.IsRequired();
That would be an requried relation
EntityShortcut<ContentEntity>()
.HasMany(e => e.Children)
.WithOne(e => e.Parent)
.IsRequired(false)
While that would NOT be a required relation.
FYI:
private static EntityTypeBuilder<T> EntityShortcut<T>() where T : class
{
return _modelBuilder.Entity<T>();
}