models.py ”’

models.py ”’

I am a beginner in backend development , I want to get some advice from some experts backend developers about the learning path , what should I learn , where to start , provide me some free resources from where I can learn. I have knowledge of front end .

I’m trying to make a music streaming website using Django. I have this error when i use the terminal command “migrate”: “ValueError: Field ‘song_id’ expected a number but got ” “. I don’t understand where “song_id” take a value that is not a number. How can i fix it and what is the code line with the problem?
this is my views.py:

So i am creating a simple API sing Django. So every time i am getting the APPEND_SLASH issue while making a POST request on localhost:8000/cars from PM , in the body I am passing a JSON request body with one field based on the value of which the data is gonna be filtered from the sqlite DB.

Okay so i am new to django. I created a superuser and then i created a ‘Customer’ model as shown below in models.py inside my app called ‘products’ Now , ran the migration command i.e python manage.py makemigrations followed by python manage.py migrate. After i log into the admin panel i see the ‘Customers table and as soon as i click on it i get this error attached in the screenshot.