Django : How to solve TypeError: on_delete must be callable on Django models?

Описание

Django : How to solve TypeError: on_delete must be callable on Django models?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I have a secret feature that I want to reveal to you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Next, enter the letters 'awesome' on your keyboard.
Your YouTube progress indicator will turn into a shimmering rainbow.

A little intro about me,
Hello there, my name is Delphi.
Allow me to support you in answering your questions.
Django : How to solve TypeError: on_delete must be callable on Django models?
If you need more specific answers, please leave a comment or start a chat with me.
Don't hesitate to provide your answer or insights by leaving a comment below.
Your contribution is valued, and I will 'heart' your answer to show my appreciation.
solve on Django callable : Django How models? must to be on_delete TypeError: