[Gmod-schema] [BCS] Bio::Chado::Schema many_to_many introspection

[Bob M. <r.m...@im...>]

Mostly for Rob...

I have been playing a bit with introspection on BCS objects (while
figuring out how to serialize them (to JSON) including one or more
levels of related objects).

You can get a list of relationships with this
  @rels = $feature->relationships
but it doesn't tell you about many_to_many relationships, such as
parent_features and child_features (which are added manually; I am
going to be adding all the many_to_many relationships for NatDiv and
related classes soon - stay tuned to
http://github.com/bobular/Bio-Chado-Schema).

There's a plugin which does it though, it's called
DBIx::Class::IntrospectableM2M

We just need to add this before the first many_to_many definition.
 __PACKAGE__->load_components(qw/IntrospectableM2M/);

and then the m2m relationships and their get/set/add/remove method
names can be obtained, not through $object->relationships, but another
method, but it works.

So the question is, should I add this extra dependency (to a module
that may not continue to be compatible) and complexity for one
potential very specialised use case (that could probably be done
another way...any ideas...)?

cheers,
Bob.