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Refs #32339 -- Doc'd setting a form's template_name is recomended over using as_* methods.

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David Smith 2023-02-12 13:24:50 +00:00 committed by Mariusz Felisiak
parent 232b60a21b
commit 3cc7a92189
2 changed files with 18 additions and 55 deletions
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33
docs/ref/forms/api.txt
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@ -554,9 +554,9 @@ This default output wraps each field with a ``<div>``. Notice the following:
it uses boolean attributes such as ``checked`` rather than the XHTML style
of ``checked='checked'``.
Although ``<div>`` output is the default output style when you ``print`` a
form, other output styles are available. Each style is available as a method on
a form object, and each rendering method returns a string.
Although ``<div>`` output is the default output style when you ``print`` a form
you can customize the output by using your own form template which can be set
site-wide, per-form, or per-instance. See :ref:`reusable-form-templates`.
Default rendering
-----------------
@ -620,14 +620,20 @@ template, see also :ref:`overriding-built-in-form-templates`.
Output styles
-------------
As well as rendering the form directly, such as in a template with
``{{ form }}``, the following helper functions serve as a proxy to
:meth:`Form.render` passing a particular ``template_name`` value.
The recommended approach for changing form output style is to set a custom form
template either site-wide, per-form, or per-instance. See
:ref:`reusable-form-templates` for examples.
These helpers are most useful in a template, where you need to override the
form renderer or form provided value but cannot pass the additional parameter
to :meth:`~Form.render`. For example, you can render a form as an unordered
list using ``{{ form.as_ul }}``.
The following helper functions are provided for backward compatibility and are
a proxy to :meth:`Form.render` passing a particular ``template_name`` value.
.. note::
Of the framework provided templates and output styles, the default
``as_div()`` is recommended over the ``as_p()``, ``as_table()``, and
``as_ul()`` versions as the template implements ``<fieldset>`` and
``<legend>`` to group related inputs and is easier for screen reader users
to navigate.
Each helper pairs a form method with an attribute giving the appropriate
template name.
@ -670,13 +676,6 @@ The template used by ``as_div()``. Default: ``'django/forms/div.html'``.
<input type="checkbox" name="cc_myself" id="id_cc_myself">
</div>
.. note::
Of the framework provided templates and output styles, ``as_div()`` is
recommended over the ``as_p()``, ``as_table()``, and ``as_ul()`` versions
as the template implements ``<fieldset>`` and ``<legend>`` to group related
inputs and is easier for screen reader users to navigate.
``as_p()``
~~~~~~~~~~

40
docs/topics/forms/index.txt
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@ -493,6 +493,8 @@ appropriately.
``<form>`` tags, or the form's ``submit`` control. You will have to provide
these yourself.
.. _reusable-form-templates:
Reusable form templates
-----------------------
@ -552,44 +554,6 @@ the :meth:`.Form.render`. Here's an example of this being used in a view::
See :ref:`ref-forms-api-outputting-html` for more details.
Form rendering options
----------------------
There are other output options though for the ``<label>``/``<input>`` pairs:
* ``{{ form.as_div }}`` will render them wrapped in ``<div>`` tags.
* ``{{ form.as_table }}`` will render them as table cells wrapped in ``<tr>``
tags.
* ``{{ form.as_p }}`` will render them wrapped in ``<p>`` tags.
* ``{{ form.as_ul }}`` will render them wrapped in ``<li>`` tags.
Note that you'll have to provide the surrounding ``<table>`` or ``<ul>``
elements yourself.
Here's the output of ``{{ form.as_p }}`` for our ``ContactForm`` instance:
.. code-block:: html+django
<p><label for="id_subject">Subject:</label>
<input id="id_subject" type="text" name="subject" maxlength="100" required></p>
<p><label for="id_message">Message:</label>
<textarea name="message" id="id_message" required></textarea></p>
<p><label for="id_sender">Sender:</label>
<input type="email" name="sender" id="id_sender" required></p>
<p><label for="id_cc_myself">Cc myself:</label>
<input type="checkbox" name="cc_myself" id="id_cc_myself"></p>
Note that each form field has an ID attribute set to ``id_<field-name>``, which
is referenced by the accompanying label tag. This is important in ensuring that
forms are accessible to assistive technology such as screen reader software.
You can also :ref:`customize the way in which labels and ids are generated
<ref-forms-api-configuring-label>`.
See :ref:`ref-forms-api-outputting-html` for more on this.
Rendering fields manually
-------------------------