fix spelling and update job to use less obtrusive query

app/models/jobs/notify_local_users.rb

@@ -9,18 +9,12 @@ module Jobs
     require File.join(Rails.root, 'app/models/notification')
 
     def self.perform(user_ids, object_klass, object_id, person_id)
-
       object = object_klass.constantize.find_by_id(object_id)
-
-      #hax
-      return if (object.author.diaspora_handle == 'diasporahq@joindiaspora.com' || (object.respond_to?(:relayable?) && object.parent.author.diaspora_handle == 'diasporahq@joindiaspora.com'))
-      #end hax
-
-      #this is really terrible
-      users = User.where(:id => user_ids)
+      users = object.participant_users
       person = Person.find_by_id(person_id)
-
-      users.each{|user| Notification.notify(user, object, person) }
+      users.each do |user|
+        Notification.notify(user, object, person)
+      end
     end
   end
 end

lib/diaspora/relayable.rb

@@ -50,6 +50,10 @@ module Diaspora
       self.parent.participants
     end
 
+    def participant_users
+      self.parent.participant_users
+    end
+
     def receive(user, person=nil)
       comment_or_like = self.class.where(:guid => self.guid).first || self
 

lib/diaspora/shareable.rb

@@ -123,6 +123,13 @@ module Diaspora
       end.call
     end
 
+    def participant_users
+      @participant_users ||= lambda do
+        user_ids = participants.map{|x| x.owner_id}.compact
+        User.where(:id => user_ids)
+      end.call
+    end
+
     protected
 
     # @return [Shareable,void]