lib/mongoid-paperclip.rb in glebtv-mongoid-paperclip-0.2.1 vs lib/mongoid-paperclip.rb in glebtv-mongoid-paperclip-0.2.2

@@ -65,9 +65,40 @@
 #  field :avatar_content_type, :type => String
 #  field :avatar_file_size,    :type => Integer
 #  field :avatar_updated_at,   :type => DateTime
 #  field :avatar_fingerprint,  :type => String
 
+# TODO Remove when https://github.com/thoughtbot/paperclip/issues/1403 is merged
+require 'paperclip/callbacks'
+module Paperclip
+  module Callbacks
+    module Defining
+      def define_paperclip_callbacks(*callbacks)
+        define_callbacks *[callbacks, {:terminator => callback_terminator}].flatten
+        callbacks.each do |callback|
+          eval <<-end_callbacks
+            def before_#{callback}(*args, &blk)
+              set_callback(:#{callback}, :before, *args, &blk)
+            end
+            def after_#{callback}(*args, &blk)
+              set_callback(:#{callback}, :after, *args, &blk)
+            end
+          end_callbacks
+        end
+      end
+      private
+      def callback_terminator
+        if ::ActiveSupport::VERSION::STRING >= '4.1'
+          lambda { |target, result| result == false }
+        else
+          'result == false'
+        end
+      end
+    end
+  end
+end
+
+
 module Mongoid
   module Paperclip
     extend ActiveSupport::Concern
 
     module ClassMethods