I posted this to lighthouse and was advised to post here instead.
I think that has_many :through should create the :through association
if it's not already declared.
Example:
class User < ActiveRecord::Base
has_many :memberships
has_many :groups, :through => :memberships
end
Why do I need to declare :memberships twice? Shouldn't this suffice?
class User < ActiveRecord::Base
has_many :groups, :through => :memberships
end
Even if the memberships association is more complex, this could be
wrapped in a hash
class User < ActiveRecord::Base
has_many :groups, :through => {
:memberships, :dependent => :destroy
}
end
In terms of expressiveness, I can see the value in declaring the join
model explicitly if that join model has significance, but sometimes
join models are only really useful on one side of the join, while on
the other side it's just noise.
WDYT?
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