mass delete

Signed-off-by: man13 <man13@inf.ufpr.br>

app/services/safe_object_type_destroy_service.rb

@@ -2,7 +2,7 @@ class SafeObjectTypeDestroyService
 
   def self.execute(object_type)
     default_type = ObjectType.find_or_create_by(name: 'Outros')
-    object_type.learning_objects.each{|lo| lo.update_attribute(:object_type, default_type)}
+    LearningObject.where(object_type: object_type).update_all(object_type_id: default_type.id)
     object_type.destroy
   end