im using has_many through and the through table has some data i want
but i cant seem to access it using straight rails
<code>
class AttributeObjects < ActiveRecord::Base
belongs_to :attributes
belongs_to :objects
end
class Attributes < ActiveRecord::Base
has_many :attribute_objects
has_many :objects, :through => :attribute_objects
end
class Objects < ActiveRecord::Base
has_many :attribute_objects
has_many :attributes, :through => :attribute_objects
end
</code>
now imagine that attribute_objects also contains a rating
so when i say, object.attributes, id like to get the rating too
that doesnt seem to be possible with the has_many relationship
if i could force the join on the object attributes to bring the
attribute_objects fields also...maybe
now imagine that attribute_objects also contains a rating
so when i say, object.attributes, id like to get the rating too
that doesnt seem to be possible with the has_many relationship
if i could force the join on the object attributes to bring the
attribute_objects fields also...maybe
If you want to access properties of AttributeObjects [1], you can
iterate the collection of them, not the collection of attributes.
So instead of:
@object.attributes.each do |attribute|
attribute.name ....
end
you do this:
@object.attribute_objects.each do |attribute_object|
attribute_object.attribute.name ....
attribute_object.rating ....
end
i think i have to write custom sql for this
You can if you want... but you don't *have* to.
You can possibly use the ":finder_sql" option of the association to
specify your own conditions for populating the collection (I've been
fiddling with it here for 10mins, and not got it working... post up
some working code if it does it for you
[1] All your class names are plural; they should really be singular...
