Refs #24914 -- Added docs for more auth mixin methods.

docs/topics/auth/default.txt

@@ -607,17 +607,25 @@ redirects to the login page::
     When using :doc:`class-based views </topics/class-based-views/index>`, you
     can use the ``UserPassesTestMixin`` to do this.
 
-    You have to override the ``test_func()`` method of the class to provide
+    .. method:: test_func()
-    the test that is performed. Furthermore, you can set any of the parameters
-    of :class:`~django.contrib.auth.mixins.AccessMixin` to customize the
-    handling of unauthorized users::
 
-        from django.contrib.auth.mixins import UserPassesTestMixin
+        You have to override the ``test_func()`` method of the class to
+        provide the test that is performed. Furthermore, you can set any of the
+        parameters of :class:`~django.contrib.auth.mixins.AccessMixin` to
+        customize the handling of unauthorized users::
 
-        class MyView(UserPassesTestMixin, View):
+            from django.contrib.auth.mixins import UserPassesTestMixin
 
-            def test_func(self):
+            class MyView(UserPassesTestMixin, View):
-                return self.request.user.email.endswith('@example.com')
+
+                def test_func(self):
+                    return self.request.user.email.endswith('@example.com')
+
+    .. method:: get_test_func()
+
+        You can also override the ``get_test_func()`` method to have the mixin
+        use a differently named function for its checks (instead of
+        :meth:`test_func`).
 
     .. admonition:: Stacking ``UserPassesTestMixin``
 
@@ -741,20 +749,19 @@ user to the login page or issue an HTTP 403 Forbidden response.
 
     .. attribute:: login_url
 
-        The URL that users who don't pass the test will be redirected to.
+        Default return value for :meth:`get_login_url`.  Defaults to ``None``
-        Defaults to :setting:`settings.LOGIN_URL <LOGIN_URL>`.
+        in which case :meth:`get_login_url` falls back to
+        :setting:`settings.LOGIN_URL <LOGIN_URL>`.
 
     .. attribute:: permission_denied_message
 
-        When ``raise_exception`` is ``True``, this attribute can be used to
+        Default return value for :meth:`get_permission_denied_message`.
-        control the error message passed to the error handler for display to
+        Defaults to an empty string.
-        the user. Defaults to an empty string.
 
     .. attribute:: redirect_field_name
 
-        The name of the query parameter that will contain the URL the user
+        Default return value for :meth:`get_redirect_field_name`. Defaults to
-        should be redirected to after a successful login. If you set this to
+        ``"next"``.
-        ``None``, a query parameter won't be added. Defaults to ``"next"``.
 
     .. attribute:: raise_exception
 
@@ -762,6 +769,26 @@ user to the login page or issue an HTTP 403 Forbidden response.
         :class:`~django.core.exceptions.PermissionDenied` exception will be
         raised instead of the redirect. Defaults to ``False``.
 
+    .. method:: get_login_url()
+
+         Returns the URL that users who don't pass the test will be redirected
+         to. Returns :attr:`login_url` if set, or :setting:`settings.LOGIN_URL
+         <LOGIN_URL>` otherwise.
+
+    .. method:: get_permission_denied_message()
+
+        When :attr:`raise_exception` is ``True``, this method can be used to
+        control the error message passed to the error handler for display to
+        the user. Returns the :attr:`permission_denied_message` attribute by
+        default.
+
+    .. method:: get_redirect_field_name()
+
+        Returns the name of the query parameter that will contain the URL the
+        user should be redirected to after a successful login. If you set this
+        to ``None``, a query parameter won't be added. Returns the
+        :attr:`redirect_field_name` attribute by default.
+
     .. method:: handle_no_permission()
 
         Depending on the value of ``raise_exception``, the method either raises