Contents

module Dragonfly
  module ActiveRecordExtensions
    module ClassMethods

      include Validations

      def register_dragonfly_app(accessor_prefix, app)
        metaclass.class_eval do
    
          # Defines e.g. 'image_accessor' for any activerecord class body
          define_method "#{accessor_prefix}_accessor" do |attribute|
      
            # Prior to activerecord 3, adding before callbacks more than once does add it more than once
            before_save :save_attachments unless respond_to?(:before_save_callback_chain) && before_save_callback_chain.find(:save_attachments)
            before_destroy :destroy_attachments unless respond_to?(:before_destroy_callback_chain) && before_destroy_callback_chain.find(:destroy_attachments)
      
            # Register the new attribute
            dragonfly_apps_for_attributes[attribute] = app
            
            # Define the setter for the attribute
            define_method "#{attribute}=" do |value|
              attachments[attribute].assign(value)
            end
      
            # Define the getter for the attribute
            define_method attribute do
              attachments[attribute].to_value
            end
      
          end
    
        end
        app
      end
      
      def dragonfly_apps_for_attributes
        @dragonfly_apps_for_attributes ||= {}
      end

    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
dragonfly-0.5.4	lib/dragonfly/active_record_extensions/class_methods.rb
dragonfly-0.5.3	lib/dragonfly/active_record_extensions/class_methods.rb
dragonfly-0.5.2	lib/dragonfly/active_record_extensions/class_methods.rb
dragonfly-0.5.1	lib/dragonfly/active_record_extensions/class_methods.rb
dragonfly-0.5.0	lib/dragonfly/active_record_extensions/class_methods.rb