Fixed #21591 -- Added documentation about contrib.messages.get_messages.

Displaying messages

-------------------

.. function:: get_messages(request)

In your template, use something like::

**In your template**, use something like::

    {% if messages %}

    <ul class="messages">

    </ul>

    {% endif %}

**Outside of templates**, you can use

:func:`~django.contrib.messages.get_messages`::

    from django.contrib.messages import get_messages

    storage = get_messages(request)

    for message in storage:

        do_something_with_the_message(message)

For instance, you can fetch all the messages to return them in a

:ref:`JSONResponseMixin <jsonresponsemixin-example>` instead of a

:class:`~django.views.generic.base.TemplateResponseMixin`.

:func:`~django.contrib.messages.get_messages` will return an

instance of the configured storage backend.

The ``Message`` class

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