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class Category < ActiveRecord::Base
has_and_belongs_to_many :posts
has_and_belongs_to_many :special_posts, :class_name => "Post"
has_and_belongs_to_many :other_posts, :class_name => "Post"
def self.what_are_you
'a category...'
end
has_many :categorizations
has_many :authors, :through => :categorizations, :select => 'authors.*, categorizations.post_id'
end
class SpecialCategory < Category
def self.what_are_you
'a special category...'
end
end
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