class OrbitObserver < Mongoid::Observer
	# observe OrbitApp.get_models
	observe :tag, :category

	def after_save(document)
		clear_cache(document)
	end

	def after_destroy(document)
		clear_cache(document)
	end

	def clear_cache(document)
		# model_module_hash = OrbitApp.get_model_module_hash
		case document.class.to_s
		when 'Tag'
			document.module_app.each do |module_app|
				Rails.cache.delete_matched( /#{ module_app.key }/ )
			end
		when 'Category'
			Rails.cache.delete_matched( /#{ document.module_app.key }/ )
		else
			# Rails.cache.delete_matched( /#{model_module_hash[document.class.to_s]}/ )
		end
	end
end