def deleteTasks(self,tskList):
     db = DB()
     db.connect()
     response=[]
     for item in tskList:
         db.delTaskByID(item['imei'], item['hash'])
         response.append({'imei':item['imei'],'hash':item['hash'],'status':'deleted'})
     return response
 def dequeueTask(self, imei,hash):
     db=DB()
     db.connect()
     task=db.getTaskByID(imei, hash)
     if task!=None:
         if task.getStatus()==States.Running:
             return False
         db.delTaskByID(imei, hash)
         db.close()
         return True
     return False