lib/carrierwave/orm/mongoid.rb in locomotive_carrierwave-0.5.0.1 vs lib/carrierwave/orm/mongoid.rb in locomotive_carrierwave-0.5.4.beta1

@@ -4,15 +4,14 @@
 require 'carrierwave/validations/active_model'
 
 module CarrierWave
   module Mongoid
     include CarrierWave::Mount
-
     ##
     # See +CarrierWave::Mount#mount_uploader+ for documentation
     #
-    def mount_uploader(column, uploader, options={}, &block)
+    def mount_uploader(column, uploader=nil, options={}, &block)
       options[:mount_on] ||= "#{column}_filename"
       field options[:mount_on]
 
       super
 
@@ -22,15 +21,37 @@
       include CarrierWave::Validations::ActiveModel
 
       validates_integrity_of  column if uploader_option(column.to_sym, :validate_integrity)
       validates_processing_of column if uploader_option(column.to_sym, :validate_processing)
 
-      before_save "check_stale_#{column}!".to_sym
-      after_save "rename_#{column}!".to_sym
-      after_save "store_#{column}!".to_sym
-      before_save "write_#{column}_identifier".to_sym
-      after_destroy "remove_#{column}!".to_sym
+      after_save      :"store_#{column}!"
+      before_save     :"write_#{column}_identifier"
+      after_destroy   :"remove_#{column}!"
+      before_update   :"store_previous_model_for_#{column}"
+      after_save      :"remove_previously_stored_#{column}"
+
+      class_eval <<-RUBY, __FILE__, __LINE__+1
+        def #{column}=(new_file)
+          column = _mounter(:#{column}).serialization_column
+
+          # Note (Didier L.): equivalent of the <column>_will_change! ActiveModel method
+          begin
+            value = __send__(column)
+            value = value.duplicable? ? value.clone : value
+          rescue TypeError, NoMethodError
+          end
+          @modifications[column] = value
+
+          super
+        end
+
+        def #{column}_changed?
+          column = _mounter(:#{column}).serialization_column
+          send(:"\#{column}_changed?")
+        end
+      RUBY
+
     end
   end # Mongoid
 end # CarrierWave
 
-Mongoid::Document::ClassMethods.send(:include, CarrierWave::Mongoid)
\ No newline at end of file
+Mongoid::Document::ClassMethods.send(:include, CarrierWave::Mongoid)