On 28 Paź, 20:53, "ara.t.howard" <[EMAIL PROTECTED]> wrote:
> given a setup like
>
> class Parent
> has_many :child_parents
> has_many :children, :through => child_parents
> end
>
> and assuming i'd like to store the style of relationship on the
> child_parents table, for example
>
> create table child_parents(
> parent_id
> child_id
> is_adopted
> )
>
> in otherwords, 'is_adopted' is an attribute of the link between child
> and parent, not of the child or parent themselves, how can one access
> this simply?
>
> child = parent.children.first
> p child.adopted?
>
> is obviously desirable and used to be possible with HABTM
> associations. but that's deprecated.... however there seems to be no
> easy way to accomplish something similar with full blown join models.
>
> cheers.
http://wiki.rubyonrails.org/rails/pages/has_and_belongs_to_many
"...
has_and_belongs_to_many is great for what it does, but it is only
adequate for simple many-to-many relationships. If your intermediary
table needs to track additional data, then you may instead want to use
ThroughAssociations instead.
..."
Cheers
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