added the needs_arguments method to mail and mongodb task

linspector/tasks/alert/mail.py

@@ -64,6 +64,9 @@ class MailTask(Task):
         if "password" in args:
             self.password = args["password"]
 
+    def needs_arguments(self):
+        return True
+
     def execute(self, job_information):
         logger.debug("Executing Mail Task!")
 

linspector/tasks/storage/mongodb.py

@@ -55,6 +55,9 @@ class MongodbTask(Task):
         self.mongo_db = self.mongo_client[self.database]
         self.mongo_db_collection = self.mongo_db[self.collection]
 
+    def needs_arguments(self):
+        return True
+
     def execute(self, job_information):
         data = {"timestamp": str(datetime.datetime.now()),
                 "msg": job_information.get_response_message(),