20Jun/100
iterate through each child association of a active record class
I came across this today while trying to find a better way to deal with error messages in rails. IMHO, it is genius and just what I was looking for.Original code came from: http://snippets.dzone.com/posts/show/2892
class ActiveRecord::Base
def each_child
self.class.reflect_on_all_associations.each do |assoc|
case assoc.macro
when :has_many then send(assoc.name).each { |child| yield child }
when :has_one then yield send(assoc.name)
end
end
end
end