Contents

module ActsAsTaggableOn::Taggable
  module Cache
    def self.included(base)
      # Skip adding caching capabilities if no cache columns exist
      return unless base.tag_types.any? { |context| base.column_names.include?("cached_#{context.to_s.singularize}_list") }
      
      base.class_eval do
        before_save :save_cached_tag_list        
      end
      
      base.tag_types.map(&:to_s).each do |tag_type|
        base.class_eval %(
          def self.caching_#{tag_type.singularize}_list?
            caching_tag_list_on?("#{tag_type}")
          end        
        )
      end
      
      base.extend ClassMethods
      include InstanceMethods
    end
    
    module ClassMethods
      def caching_tag_list_on?(context)
        column_names.include?("cached_#{context.to_s.singularize}_list")
      end
    end
    
    module InstanceMethods
      def save_cached_tag_list
        tag_types.map(&:to_s).each do |tag_type|
          if self.class.send("caching_#{tag_type.singularize}_list?")
            self["cached_#{tag_type.singularize}_list"] = tag_list_cache_on(tag_type.singularize).to_a.flatten.compact.join(', ')
          end
        end
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
acts-as-taggable-on-2.0.0.pre3	lib/acts_as_taggable_on/acts_as_taggable_on/cache.rb