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git-svn-id: http://code.djangoproject.com/svn/django/trunk@4171 bcc190cf-cafb-0310-a4f2-bffc1f526a37
72 lines
2.5 KiB
Plaintext
72 lines
2.5 KiB
Plaintext
====================
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The newforms library
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====================
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``django.newforms`` is a new replacement for ``django.forms``, the old Django
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form/manipulator/validation framework. This document explains how to use this
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new form library.
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Migration plan
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==============
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``django.newforms`` currently is only available in the Django development version
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-- i.e., it's not available in the Django 0.95 release. For the next Django
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release, our plan is to do the following:
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* Move the current ``django.forms`` to ``django.oldforms``. This will allow
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for an eased migration of form code. You'll just have to change your
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import statements::
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from django import forms # old
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from django import oldforms as forms # new
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* Move the current ``django.newforms`` to ``django.forms``.
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* We will remove ``django.oldforms`` in the release *after* the next Django
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release -- the release that comes after the release in which we're
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creating ``django.oldforms``.
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With this in mind, we recommend you use the following import statement when
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using ``django.newforms``::
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from django import newforms as forms
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This way, your code can refer to the ``forms`` module, and when
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``django.newforms`` is renamed to ``django.forms``, you'll only have to change
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your ``import`` statements.
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If you prefer "``import *``" syntax, you can do the following::
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from django.newforms import *
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This will import all fields, widgets, form classes and other various utilities
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into your local namespace. Some people find this convenient; others find it
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too messy. The choice is yours.
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Overview
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========
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As the ``django.forms`` system before it, ``django.newforms`` is intended to
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handle HTML form display, validation and redisplay. It's what you use if you
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want to perform server-side validation for an HTML form.
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The library deals with these concepts:
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* **Widget** -- A class that corresponds to an HTML form widget, e.g.
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``<input type="text">`` or ``<textarea>``. This handles rendering of the
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widget as HTML.
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* **Field** -- A class that is responsible for doing validation, e.g.
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an ``EmailField`` that makes sure its data is a valid e-mail address.
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* **Form** -- A collection of fields that knows how to validate itself and
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display itself as HTML.
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More coming soon
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================
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That's all the documentation for now. For more, see the file
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http://code.djangoproject.com/browser/django/trunk/tests/regressiontests/forms/tests.py
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-- the unit tests for ``django.newforms``. This can give you a good idea of
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what's possible.
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