I should add that in this case, I don't have the inverse property
(IList<Itinerary> Itineraries on Activity) on my other class. If I
did, then the auto-mapper would make a many-to-many for me. I have no
reason to ever need or want the inverse property on the other object,
and I don't really want to clutter up my object model with it. Hence,
the attribute idea.
On Mar 16, 12:37 pm, Jon Kruger <krugs...@gmail.com> wrote:
> James (and company),
>
> Currently if I want to auto-map many-to-many collections using the
> auto-mapper, I have to create an override class so that it knows that
> it's a many-to-many and not a one-to-many, like this:
>
> public class Itinerary : Entity
> {
> private IList<Activity> _activities;
>
> public Itinerary()
> {
> _activities = new List<Activity>();
> }
>
> public virtual IList<Activity> Activities
> {
> get { return _activities; }
> set { _activities = value; }
> }
> }
>
> public class ItineraryMappingOverride :
> IAutoMappingOverride<Itinerary>
> {
> public void Override(AutoMap<Itinerary> mapping)
> {
> mapping.HasManyToMany(x => x.Activities);
> }
> }
>
> I think it would be nice if I could put an attribute on my collection
> to do this for me, so that my code might look like this:
>
> public class Itinerary : Entity
> {
> private IList<Activity> _activities;
>
> public Itinerary()
> {
> _activities = new List<Activity>();
> }
>
> [AutoMapAsManyToMany]
> public virtual IList<Activity> Activities
> {
> get { return _activities; }
> set { _activities = value; }
> }
> }
>
> I don't know if you wanted to clutter things up with attributes or not
> but I think it would make it easier (one attribute vs. having to
> create an entire override class). If you'd like I can implement it
> and send you a patch, it looks like all I would have to is add another
> auto-mapping rule class and then tweak the AutoMapOneToMany rule to
> ignore properties with the attribute.
>
> Jon
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