base.rb in rivendell-import-0.0.2

- old
+ new

@@ -56,14 +56,19 @@
       self.parameters = ActiveSupport::JSON.decode(raw_parameters) if raw_parameters.present?
     end
 
     after_initialize :read_parameters
 
+    def parameters_hash
+      parameters_as_string = parameters.sort_by { |p| p.first.to_s }.flatten.join('-')
+      Digest::SHA256.hexdigest parameters_as_string
+    end
+
     def write_parameters
       if parameters.present?
         write_attribute :parameters, parameters.to_json
-        write_attribute :key, parameters.hash
+        write_attribute :key, parameters_hash
       else
         write_attribute :parameters, nil
         write_attribute :key, nil
       end
     end
@@ -74,10 +79,10 @@
       new_notifier = case options.delete(:by)
                      when :email
                        Mail.new options.merge(:to => target)
                      end
 
-      key = new_notifier.parameters.hash
+      key = new_notifier.parameters_hash
       if existing_notifier = where(:type => new_notifier.type, :key => key).first
         existing_notifier
       else
         new_notifier.save!
         new_notifier