Fixed #13740 -- Added documentation for the can_delete InlineModelAdmin...

The ``InlineModelAdmin`` class is a subclass of ``ModelAdmin`` so it inherits

all the same functionality as well as some of its own:

``model``

~~~~~~~~~

.. attribute:: InlineModelAdmin.model

    The model in which the inline is using. This is required.

``fk_name``

~~~~~~~~~~~

.. attribute:: InlineModelAdmin.fk_name

    The name of the foreign key on the model. In most cases this will be dealt

with automatically, but ``fk_name`` must be specified explicitly if there are

more than one foreign key to the same parent model.

    with automatically, but ``fk_name`` must be specified explicitly if there

    are more than one foreign key to the same parent model.

``formset``

~~~~~~~~~~~

.. attribute:: InlineModelAdmin.formset

    This defaults to ``BaseInlineFormSet``. Using your own formset can give you

    many possibilities of customization. Inlines are built around

    :ref:`model formsets <model-formsets>`.

``form``

~~~~~~~~

.. attribute:: InlineModelAdmin.form

The value for ``form`` defaults to ``ModelForm``. This is what is

passed through to ``inlineformset_factory`` when creating the formset for this

    The value for ``form`` defaults to ``ModelForm``. This is what is passed

    through to ``inlineformset_factory`` when creating the formset for this

    inline.

.. _ref-contrib-admin-inline-extra:

``extra``

~~~~~~~~~

.. attribute:: InlineModelAdmin.extra

    This controls the number of extra forms the formset will display in addition

    to the initial forms. See the

    .. versionadded:: 1.2

    For users with JavaScript-enabled browsers, an "Add another" link is

provided to enable any number of additional inlines to be added in

addition to those provided as a result of the ``extra`` argument.

    provided to enable any number of additional inlines to be added in addition

    to those provided as a result of the ``extra`` argument.

The dynamic link will not appear if the number of currently displayed

forms exceeds ``max_num``, or if the user does not have JavaScript

enabled.

    The dynamic link will not appear if the number of currently displayed forms

    exceeds ``max_num``, or if the user does not have JavaScript enabled.

.. _ref-contrib-admin-inline-max-num:

``max_num``

~~~~~~~~~~~

.. attribute:: InlineModelAdmin.max_num

This controls the maximum number of forms to show in the inline. This doesn't

directly correlate to the number of objects, but can if the value is small

enough. See :ref:`model-formsets-max-num` for more information.

    This controls the maximum number of forms to show in the inline. This

    doesn't directly correlate to the number of objects, but can if the value

    is small enough. See :ref:`model-formsets-max-num` for more information.

``raw_id_fields``

~~~~~~~~~~~~~~~~~

.. attribute:: InlineModelAdmin.raw_id_fields

    By default, Django's admin uses a select-box interface (<select>) for

    fields that are ``ForeignKey``. Sometimes you don't want to incur the

    overhead of having to select all the related instances to display in the

    drop-down.

``raw_id_fields`` is a list of fields you would like to change

into a ``Input`` widget for either a ``ForeignKey`` or ``ManyToManyField``::

    ``raw_id_fields`` is a list of fields you would like to change into a

    ``Input`` widget for either a ``ForeignKey`` or ``ManyToManyField``::

        class BookInline(admin.TabularInline):

            model = Book

            raw_id_fields = ("pages",)

``template``

~~~~~~~~~~~~

.. attribute:: InlineModelAdmin.template

    The template used to render the inline on the page.

``verbose_name``

~~~~~~~~~~~~~~~~

.. attribute:: InlineModelAdmin.verbose_name

    An override to the ``verbose_name`` found in the model's inner ``Meta``

    class.

An override to the ``verbose_name`` found in the model's inner ``Meta`` class.

.. attribute:: InlineModelAdmin.verbose_name_plural

``verbose_name_plural``

~~~~~~~~~~~~~~~~~~~~~~~

    An override to the ``verbose_name_plural`` found in the model's inner

    ``Meta`` class.

.. attribute:: InlineModelAdmin.can_delete

    Specifies whether or not inline objects can be deleted in the inline.

    Defaults to ``True``.

An override to the ``verbose_name_plural`` found in the model's inner ``Meta``

class.

Working with a model with two or more foreign keys to the same parent model

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