switched my_company and my_products from method to class views

back_latienda/permissions.py

@@ -35,6 +35,19 @@ class IsStaff(permissions.BasePermission):
         return request.user.is_staff
 
 
+class IsSiteAdmin(permissions.BasePermission):
+    """
+    Grant permission if request.user.role == 'SITE_ADMIN'
+    """
+
+    admin_role = 'SITE_ADMIN'
+
+    def has_object_permission(self, request, view, obj):
+        return request.user.role == self.admin_role
+
+    def has_permission(self, request, view):
+        return request.user.role == self.admin_role
+
 
 class ReadOnly(permissions.BasePermission):
     def has_permission(self, request, view):