Creating a customized permission class for object-level permissions

Create a new Python file named customized_permissions.py within the games_service/games folder and enter the following code that declares the new IsOwnerOrReadOnly class. The code file for the sample is included in the restful_python_2_07_04 folder, in the Django01/games-service/games/customized_permissions.py file:

from rest_framework import permissions 
 
 
class IsOwnerOrReadOnly(permissions.BasePermission): 
    def has_object_permission(self, request, view, obj): 
        if request.method in permissions.SAFE_METHODS: 
            return True 
        else: 
            return obj.owner == request.user 

The rest_framework.permissions.BasePermission class is the base class from which all permission classes should inherit. The previous lines declare the IsOwnerOrReadOnly class as a subclass of the BasePermission superclass and override the has_object_permission method, defined in the superclass, that returns a bool value...