user where as opposed to find to compensate for deleted topics

lib/jobs/close_topic.rb

@@ -2,9 +2,9 @@ module Jobs
   class CloseTopic < Jobs::Base
 
     def execute(args)
-      topic = Topic.find(args[:topic_id])
+      topic = Topic.where(id: args[:topic_id]).first
       if topic and topic.auto_close_at and !topic.closed? and !topic.deleted_at
-        closer = User.find(args[:user_id])
+        closer = User.where(id: args[:user_id]).first
         if Guardian.new(closer).can_moderate?(topic)
           topic.update_status('autoclosed', true, closer)
         end

spec/components/jobs/close_topic_spec.rb

@@ -8,16 +8,16 @@ describe Jobs::CloseTopic do
   it 'closes a topic that is set to auto-close' do
     topic = Fabricate.build(:topic, auto_close_at: Time.zone.now, user: admin)
     topic.expects(:update_status).with('autoclosed', true, admin)
-    Topic.stubs(:find).returns(topic)
-    User.stubs(:find).returns(admin)
+    Topic.stubs(:where).returns([topic])
+    User.stubs(:where).returns([admin])
     Jobs::CloseTopic.new.execute( topic_id: 123, user_id: 234 )
   end
 
   shared_examples_for "cases when CloseTopic does nothing" do
     it 'does nothing to the topic' do
       topic.expects(:update_status).never
-      Topic.stubs(:find).returns(topic)
-      User.stubs(:find).returns(admin)
+      Topic.stubs(:where).returns([topic])
+      User.stubs(:where).returns([admin])
       Jobs::CloseTopic.new.execute( topic_id: 123, user_id: 234 )
     end
   end