autheitcation through uisername and email both

user/backends.py

@@ -6,15 +6,19 @@ class EmailBackend(ModelBackend):
     def authenticate(self, request, username=None, email=None, password=None, **kwargs):
         UserModel = get_user_model()
 
-        # Use email if it's provided; otherwise, fallback to username
-        email = email or username
+        # Prioritize email if provided; otherwise, use username
+        lookup_value = email or username
 
-        print(f"Trying to authenticate: {email=}, {password=}")
+        print(f"Trying to authenticate: {lookup_value=}, {password=}")
         try:
-            user = UserModel.objects.get(email=email)
-            print("Found a user with the provided email")
+            if "@" in lookup_value:
+                user = UserModel.objects.get(email=lookup_value)
+                print("Found a user with the provided email")
+            else:
+                user = UserModel.objects.get(username=lookup_value)
+                print("Found a user with the provided username")
         except UserModel.DoesNotExist:
-            print("No user found with the provided email")
+            print("No user found with the provided email/username")
             return None
         else:
             if user.check_password(password):

user/templates/user/login.html

@@ -7,8 +7,8 @@
     <h2>Login</h2>
     <form method="post">
         {% csrf_token %} <!-- CSRF token for security -->
-        <label for="email">Email:</label>
-        <input type="email" name="email" required><br>
+        <label for="email_or_username">Email OR Username:</label>
+        <input type="email_or_username" name="email_or_username" required><br>
         <label for="password">Password:</label>
         <input type="password" name="password" required><br>
         <button type="submit">Login</button>

user/views.py

@@ -34,15 +34,20 @@ def post(request):
 
 class LoginView(View):
     """View to handle user login."""
+
     @staticmethod
     def get(request):
         return render(request, LOGIN_TEMPLATE)
 
     @staticmethod
     def post(request):
-        email = request.POST['email']
+        # Retrieve both email and username from the request.
+        # One of them will be None, and that's okay.
+        lookup_value = request.POST.get('email_or_username')  # Adjust your frontend to have a unified input
         password = request.POST['password']
-        user = authenticate(request, email=email, password=password)
+
+        user = authenticate(request, email=lookup_value, username=lookup_value, password=password)
+
         if user:
             login(request, user)
             return redirect('home')