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deJaVisions/gist:1906315

Created February 25, 2012 03:57
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gistfile1.txt
class Product < ActiveRecord::Base
has_many :materials, :through => :product_materials
has_many :products_material
end
class Material < ActiveRecord::Base
belongs_to :product, :through => :products_material
has_many :products_material
end
class ProductMaterials < ActiveRecord::Base
belongs_to :product
belongs_to :material
end
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