Signal

Signal view from two different receivers (of the same model)

Signal view from two different receivers (of the same model)
  1. Can one transmitter feed multiple receivers?
  2. What is the use of the Post_delete signal in Django?
  3. What are the roles of receiver and sender in signal?
  4. When to use Django signals?

Can one transmitter feed multiple receivers?

YES. However these receivers are all receiving the same audio from the transmitter.

What is the use of the Post_delete signal in Django?

There are 3 types of signal. pre_save/post_save: This signal works before/after the method save(). pre_delete/post_delete: This signal works before after delete a model's instance (method delete()) this signal is thrown.

What are the roles of receiver and sender in signal?

receiver – The callback function which will be connected to this signal. See Receiver functions for more information. sender – Specifies a particular sender to receive signals from. See Connecting to signals sent by specific senders for more information.

When to use Django signals?

When to use Django Signals? You can use Django Signals when you want to run a specific code before or after the event on the model/database. For example when you update user then it should also update the profile model instance using the django post_save method.

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