Fixed #22019 -- Added Model.objects reference documentation.

docs/index.txt

@@ -61,7 +61,8 @@ manipulating the data of your Web application. Learn more about it below:
 * **Models:**
   :doc:`Model syntax <topics/db/models>` |
   :doc:`Field types <ref/models/fields>` |
-  :doc:`Meta options <ref/models/options>`
+  :doc:`Meta options <ref/models/options>` |
+  :doc:`Model class <ref/models/class>`
 
 * **QuerySets:**
   :doc:`Executing queries <topics/db/queries>` |

docs/ref/models/class.txt

+=====================
+Model class reference
+=====================
+
+.. currentmodule:: django.db.models
+
+This document covers features of the :class:`~django.db.models.Model` class.
+For more information about models, see :doc:`the complete list of Model
+reference guides </ref/models/index>`.
+
+Attributes
+==========
+
+``objects``
+-----------
+
+.. attribute:: Model.objects
+
+    Each non-abstract :class:`~django.db.models.Model` class must have a
+    :class:`~django.db.models.Manager` instance added to it.
+    Django ensures that in your model class you have  at least a
+    default ``Manager`` specified. If you don't add your own ``Manager``,
+    Django will add an attribute ``objects`` containing default
+    :class:`~django.db.models.Manager` instance. If you add your own
+    :class:`~django.db.models.Manager` instance attribute, the default one does
+    not appear. Consider the following example::
+
+        from django.db import models
+
+        class Person(models.Model):
+            # Add manager with another name
+            people = models.Manager()
+
+    For more details on model managers see :doc:`Managers </topics/db/managers>`
+    and :ref:`Retrieving objects <retrieving-objects>`.

docs/ref/models/index.txt

@@ -9,6 +9,7 @@ Model API reference. For introductory material, see :doc:`/topics/db/models`.
 
    fields
    relations
+   class
    options
    instances
    querysets

docs/topics/db/models.txt

@@ -681,8 +681,9 @@ Model attributes
     :class:`~django.db.models.Manager`. It's the interface through which
     database query operations are provided to Django models and is used to
     :ref:`retrieve the instances <retrieving-objects>` from the database. If no
-    custom ``Manager`` is defined, the default name is ``objects``. Managers
-    are only accessible via model classes, not the model instances.
+    custom ``Manager`` is defined, the default name is
+    :attr:`~django.db.models.Model.objects`. Managers are only accessible via
+    model classes, not the model instances.
 
 .. _model-methods:
 

docs/topics/db/queries.txt

@@ -146,8 +146,9 @@ and a filter is a limiting clause such as ``WHERE`` or ``LIMIT``.
 
 You get a :class:`~django.db.models.query.QuerySet` by using your model's
 :class:`~django.db.models.Manager`. Each model has at least one
-:class:`~django.db.models.Manager`, and it's called ``objects`` by
-default. Access it directly via the model class, like so::
+:class:`~django.db.models.Manager`, and it's called
+:attr:`~django.db.models.Model.objects` by default. Access it directly via the
+model class, like so::
 
     >>> Blog.objects
     <django.db.models.manager.Manager object at ...>