--- a/app.py	Tue Dec 25 17:09:32 2012 +0900
+++ b/app.py	Tue Dec 25 17:14:50 2012 +0900
@@ -98,8 +98,7 @@
     safe_fields = ('name', 'color')
     
     def delete(self, resource_id):
-        for task in g.db.get_many('task', resource_id, with_doc=True):
-            response = g.db.delete(task['doc'])
+        g.db.run('task', 'delete_for_project', resource_id)
         
         return super(Project, self).delete(resource_id)
 

--- a/fruitbar/indexes.py	Tue Dec 25 17:09:32 2012 +0900
+++ b/fruitbar/indexes.py	Tue Dec 25 17:14:50 2012 +0900
@@ -29,3 +29,8 @@
 
     def make_key(self, key):
         return md5(key).digest()
+    
+    def run_delete_for_project(self, db, project):
+        for task in db.get_many('task', project, with_doc=True):
+            db.delete(task['doc'])
+