Gaetan de Menten wrote:
> We could, of course, but I find it more logical this way as for me,
> when you go "via" something, you end up somewhere else. Here, on a
> field statement, you end up "on" the attribute itself.
Okay, I can see your point. I still prefer standardizing on "via" but I
can live with the way it is now, so lets stick with it.
Now, another question. I was thinking it would be nice if we could
even have the `has_many(through=..., via=...)` handle chaining together
collections for us as well, like so:
class Company(Entity):
has_field('name', Unicode)
has_many('contacts', of_kind='Contact', inverse='company')
has_many('users', through='employments', via='user',
creator=lambda user: Employment(user=user))
class User(Entity):
has_field('username', Unicode)
has_many('employments', of_kind='Employment', inverse='user')
has_many('companies', through='employments', via='company')
# right now, you have to do this:
@property
def contacts(self):
for company in self.companies:
for contact in company.contacts:
yield contact
# wouldn't it be nice if you could do this instead?
has_many('contacts', through='companies', via='contacts')
class Employment(Entity):
has_field('title', Unicode)
belongs_to('company', of_kind='Company',
inverse='employments')
belongs_to('user', of_kind='User', inverse='employments')
class Contact(Entity):
has_field('firstname', Unicode)
has_field('lastname', Unicode)
belongs_to('company', of_kind='Company', inverse='contacts')
I am not sure if the AssociationProxy extension handles this, but we
could probably fake it by attaching a property. What do you think?
--
Jonathan LaCour
http://cleverdevil.org
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