Hi
I had decided to use http://github.com/snusnu/dm-is-self_referential
but am having trouble isolating records without children due to the
absence of a foreign key in my model to map the values of the join
table by.
is :self_referential, :through => 'Publication',
:children => :child_items, # item_child_items
:parents => :parent_items, # item_parent_items
:source => :parent_items, # parent_items
:target => :child_item, # child_items
:order => [ :published_at.desc ],
:constraint => :destroy
Is there a clean way to say something like this below but in reverse
so as to only get back those results without children? I have tried a
number of combination's, but really need some pointers.
item = Item.all
item.child_items.each { | child | item.object_id ==
child.parent_items.object_id }
Thanks
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