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mirror of https://github.com/django/django.git synced 2024-12-25 02:26:12 +00:00
django/tests/regressiontests/forms/widgets.py
Malcolm Tredinnick 8a3ef1f8bc Fixed #7499 -- Trim microseconds off rendering of form.TimeFields by default so
that they validate. Previous code didn't work with microseconds anyway, so this
is backwards compatible. Thanks to kevin for the patch.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8491 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2008-08-23 17:33:09 +00:00

1109 lines
48 KiB
Python

# -*- coding: utf-8 -*-
tests = r"""
>>> from django.forms import *
>>> from django.forms.widgets import RadioFieldRenderer
>>> from django.utils.safestring import mark_safe
>>> import datetime
>>> import time
>>> import re
>>> try:
... from decimal import Decimal
... except ImportError:
... from django.utils._decimal import Decimal
###########
# Widgets #
###########
Each Widget class corresponds to an HTML form widget. A Widget knows how to
render itself, given a field name and some data. Widgets don't perform
validation.
# TextInput Widget ############################################################
>>> w = TextInput()
>>> w.render('email', '')
u'<input type="text" name="email" />'
>>> w.render('email', None)
u'<input type="text" name="email" />'
>>> w.render('email', 'test@example.com')
u'<input type="text" name="email" value="test@example.com" />'
>>> w.render('email', 'some "quoted" & ampersanded value')
u'<input type="text" name="email" value="some &quot;quoted&quot; &amp; ampersanded value" />'
>>> w.render('email', 'test@example.com', attrs={'class': 'fun'})
u'<input type="text" name="email" value="test@example.com" class="fun" />'
# Note that doctest in Python 2.4 (and maybe 2.5?) doesn't support non-ascii
# characters in output, so we're displaying the repr() here.
>>> w.render('email', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'})
u'<input type="text" name="email" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" class="fun" />'
You can also pass 'attrs' to the constructor:
>>> w = TextInput(attrs={'class': 'fun'})
>>> w.render('email', '')
u'<input type="text" class="fun" name="email" />'
>>> w.render('email', 'foo@example.com')
u'<input type="text" class="fun" value="foo@example.com" name="email" />'
'attrs' passed to render() get precedence over those passed to the constructor:
>>> w = TextInput(attrs={'class': 'pretty'})
>>> w.render('email', '', attrs={'class': 'special'})
u'<input type="text" class="special" name="email" />'
# PasswordInput Widget ############################################################
>>> w = PasswordInput()
>>> w.render('email', '')
u'<input type="password" name="email" />'
>>> w.render('email', None)
u'<input type="password" name="email" />'
>>> w.render('email', 'test@example.com')
u'<input type="password" name="email" value="test@example.com" />'
>>> w.render('email', 'some "quoted" & ampersanded value')
u'<input type="password" name="email" value="some &quot;quoted&quot; &amp; ampersanded value" />'
>>> w.render('email', 'test@example.com', attrs={'class': 'fun'})
u'<input type="password" name="email" value="test@example.com" class="fun" />'
You can also pass 'attrs' to the constructor:
>>> w = PasswordInput(attrs={'class': 'fun'})
>>> w.render('email', '')
u'<input type="password" class="fun" name="email" />'
>>> w.render('email', 'foo@example.com')
u'<input type="password" class="fun" value="foo@example.com" name="email" />'
'attrs' passed to render() get precedence over those passed to the constructor:
>>> w = PasswordInput(attrs={'class': 'pretty'})
>>> w.render('email', '', attrs={'class': 'special'})
u'<input type="password" class="special" name="email" />'
>>> w.render('email', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'})
u'<input type="password" class="fun" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" name="email" />'
The render_value argument lets you specify whether the widget should render
its value. You may want to do this for security reasons.
>>> w = PasswordInput(render_value=True)
>>> w.render('email', 'secret')
u'<input type="password" name="email" value="secret" />'
>>> w = PasswordInput(render_value=False)
>>> w.render('email', '')
u'<input type="password" name="email" />'
>>> w.render('email', None)
u'<input type="password" name="email" />'
>>> w.render('email', 'secret')
u'<input type="password" name="email" />'
>>> w = PasswordInput(attrs={'class': 'fun'}, render_value=False)
>>> w.render('email', 'secret')
u'<input type="password" class="fun" name="email" />'
# HiddenInput Widget ############################################################
>>> w = HiddenInput()
>>> w.render('email', '')
u'<input type="hidden" name="email" />'
>>> w.render('email', None)
u'<input type="hidden" name="email" />'
>>> w.render('email', 'test@example.com')
u'<input type="hidden" name="email" value="test@example.com" />'
>>> w.render('email', 'some "quoted" & ampersanded value')
u'<input type="hidden" name="email" value="some &quot;quoted&quot; &amp; ampersanded value" />'
>>> w.render('email', 'test@example.com', attrs={'class': 'fun'})
u'<input type="hidden" name="email" value="test@example.com" class="fun" />'
You can also pass 'attrs' to the constructor:
>>> w = HiddenInput(attrs={'class': 'fun'})
>>> w.render('email', '')
u'<input type="hidden" class="fun" name="email" />'
>>> w.render('email', 'foo@example.com')
u'<input type="hidden" class="fun" value="foo@example.com" name="email" />'
'attrs' passed to render() get precedence over those passed to the constructor:
>>> w = HiddenInput(attrs={'class': 'pretty'})
>>> w.render('email', '', attrs={'class': 'special'})
u'<input type="hidden" class="special" name="email" />'
>>> w.render('email', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'})
u'<input type="hidden" class="fun" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" name="email" />'
'attrs' passed to render() get precedence over those passed to the constructor:
>>> w = HiddenInput(attrs={'class': 'pretty'})
>>> w.render('email', '', attrs={'class': 'special'})
u'<input type="hidden" class="special" name="email" />'
Boolean values are rendered to their string forms ("True" and "False").
>>> w = HiddenInput()
>>> w.render('get_spam', False)
u'<input type="hidden" name="get_spam" value="False" />'
>>> w.render('get_spam', True)
u'<input type="hidden" name="get_spam" value="True" />'
# MultipleHiddenInput Widget ##################################################
>>> w = MultipleHiddenInput()
>>> w.render('email', [])
u''
>>> w.render('email', None)
u''
>>> w.render('email', ['test@example.com'])
u'<input type="hidden" name="email" value="test@example.com" />'
>>> w.render('email', ['some "quoted" & ampersanded value'])
u'<input type="hidden" name="email" value="some &quot;quoted&quot; &amp; ampersanded value" />'
>>> w.render('email', ['test@example.com', 'foo@example.com'])
u'<input type="hidden" name="email" value="test@example.com" />\n<input type="hidden" name="email" value="foo@example.com" />'
>>> w.render('email', ['test@example.com'], attrs={'class': 'fun'})
u'<input type="hidden" name="email" value="test@example.com" class="fun" />'
>>> w.render('email', ['test@example.com', 'foo@example.com'], attrs={'class': 'fun'})
u'<input type="hidden" name="email" value="test@example.com" class="fun" />\n<input type="hidden" name="email" value="foo@example.com" class="fun" />'
You can also pass 'attrs' to the constructor:
>>> w = MultipleHiddenInput(attrs={'class': 'fun'})
>>> w.render('email', [])
u''
>>> w.render('email', ['foo@example.com'])
u'<input type="hidden" class="fun" value="foo@example.com" name="email" />'
>>> w.render('email', ['foo@example.com', 'test@example.com'])
u'<input type="hidden" class="fun" value="foo@example.com" name="email" />\n<input type="hidden" class="fun" value="test@example.com" name="email" />'
'attrs' passed to render() get precedence over those passed to the constructor:
>>> w = MultipleHiddenInput(attrs={'class': 'pretty'})
>>> w.render('email', ['foo@example.com'], attrs={'class': 'special'})
u'<input type="hidden" class="special" value="foo@example.com" name="email" />'
>>> w.render('email', ['ŠĐĆŽćžšđ'], attrs={'class': 'fun'})
u'<input type="hidden" class="fun" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" name="email" />'
'attrs' passed to render() get precedence over those passed to the constructor:
>>> w = MultipleHiddenInput(attrs={'class': 'pretty'})
>>> w.render('email', ['foo@example.com'], attrs={'class': 'special'})
u'<input type="hidden" class="special" value="foo@example.com" name="email" />'
# FileInput Widget ############################################################
FileInput widgets don't ever show the value, because the old value is of no use
if you are updating the form or if the provided file generated an error.
>>> w = FileInput()
>>> w.render('email', '')
u'<input type="file" name="email" />'
>>> w.render('email', None)
u'<input type="file" name="email" />'
>>> w.render('email', 'test@example.com')
u'<input type="file" name="email" />'
>>> w.render('email', 'some "quoted" & ampersanded value')
u'<input type="file" name="email" />'
>>> w.render('email', 'test@example.com', attrs={'class': 'fun'})
u'<input type="file" name="email" class="fun" />'
You can also pass 'attrs' to the constructor:
>>> w = FileInput(attrs={'class': 'fun'})
>>> w.render('email', '')
u'<input type="file" class="fun" name="email" />'
>>> w.render('email', 'foo@example.com')
u'<input type="file" class="fun" name="email" />'
>>> w.render('email', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'})
u'<input type="file" class="fun" name="email" />'
Test for the behavior of _has_changed for FileInput. The value of data will
more than likely come from request.FILES. The value of initial data will
likely be a filename stored in the database. Since its value is of no use to
a FileInput it is ignored.
>>> w = FileInput()
# No file was uploaded and no initial data.
>>> w._has_changed(u'', None)
False
# A file was uploaded and no initial data.
>>> w._has_changed(u'', {'filename': 'resume.txt', 'content': 'My resume'})
True
# A file was not uploaded, but there is initial data
>>> w._has_changed(u'resume.txt', None)
False
# A file was uploaded and there is initial data (file identity is not dealt
# with here)
>>> w._has_changed('resume.txt', {'filename': 'resume.txt', 'content': 'My resume'})
True
# Textarea Widget #############################################################
>>> w = Textarea()
>>> w.render('msg', '')
u'<textarea rows="10" cols="40" name="msg"></textarea>'
>>> w.render('msg', None)
u'<textarea rows="10" cols="40" name="msg"></textarea>'
>>> w.render('msg', 'value')
u'<textarea rows="10" cols="40" name="msg">value</textarea>'
>>> w.render('msg', 'some "quoted" & ampersanded value')
u'<textarea rows="10" cols="40" name="msg">some &quot;quoted&quot; &amp; ampersanded value</textarea>'
>>> w.render('msg', mark_safe('pre &quot;quoted&quot; value'))
u'<textarea rows="10" cols="40" name="msg">pre &quot;quoted&quot; value</textarea>'
>>> w.render('msg', 'value', attrs={'class': 'pretty', 'rows': 20})
u'<textarea class="pretty" rows="20" cols="40" name="msg">value</textarea>'
You can also pass 'attrs' to the constructor:
>>> w = Textarea(attrs={'class': 'pretty'})
>>> w.render('msg', '')
u'<textarea rows="10" cols="40" name="msg" class="pretty"></textarea>'
>>> w.render('msg', 'example')
u'<textarea rows="10" cols="40" name="msg" class="pretty">example</textarea>'
'attrs' passed to render() get precedence over those passed to the constructor:
>>> w = Textarea(attrs={'class': 'pretty'})
>>> w.render('msg', '', attrs={'class': 'special'})
u'<textarea rows="10" cols="40" name="msg" class="special"></textarea>'
>>> w.render('msg', 'ŠĐĆŽćžšđ', attrs={'class': 'fun'})
u'<textarea rows="10" cols="40" name="msg" class="fun">\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111</textarea>'
# CheckboxInput Widget ########################################################
>>> w = CheckboxInput()
>>> w.render('is_cool', '')
u'<input type="checkbox" name="is_cool" />'
>>> w.render('is_cool', None)
u'<input type="checkbox" name="is_cool" />'
>>> w.render('is_cool', False)
u'<input type="checkbox" name="is_cool" />'
>>> w.render('is_cool', True)
u'<input checked="checked" type="checkbox" name="is_cool" />'
Using any value that's not in ('', None, False, True) will check the checkbox
and set the 'value' attribute.
>>> w.render('is_cool', 'foo')
u'<input checked="checked" type="checkbox" name="is_cool" value="foo" />'
>>> w.render('is_cool', False, attrs={'class': 'pretty'})
u'<input type="checkbox" name="is_cool" class="pretty" />'
You can also pass 'attrs' to the constructor:
>>> w = CheckboxInput(attrs={'class': 'pretty'})
>>> w.render('is_cool', '')
u'<input type="checkbox" class="pretty" name="is_cool" />'
'attrs' passed to render() get precedence over those passed to the constructor:
>>> w = CheckboxInput(attrs={'class': 'pretty'})
>>> w.render('is_cool', '', attrs={'class': 'special'})
u'<input type="checkbox" class="special" name="is_cool" />'
You can pass 'check_test' to the constructor. This is a callable that takes the
value and returns True if the box should be checked.
>>> w = CheckboxInput(check_test=lambda value: value.startswith('hello'))
>>> w.render('greeting', '')
u'<input type="checkbox" name="greeting" />'
>>> w.render('greeting', 'hello')
u'<input checked="checked" type="checkbox" name="greeting" value="hello" />'
>>> w.render('greeting', 'hello there')
u'<input checked="checked" type="checkbox" name="greeting" value="hello there" />'
>>> w.render('greeting', 'hello & goodbye')
u'<input checked="checked" type="checkbox" name="greeting" value="hello &amp; goodbye" />'
A subtlety: If the 'check_test' argument cannot handle a value and raises any
exception during its __call__, then the exception will be swallowed and the box
will not be checked. In this example, the 'check_test' assumes the value has a
startswith() method, which fails for the values True, False and None.
>>> w.render('greeting', True)
u'<input type="checkbox" name="greeting" />'
>>> w.render('greeting', False)
u'<input type="checkbox" name="greeting" />'
>>> w.render('greeting', None)
u'<input type="checkbox" name="greeting" />'
The CheckboxInput widget will return False if the key is not found in the data
dictionary (because HTML form submission doesn't send any result for unchecked
checkboxes).
>>> w.value_from_datadict({}, {}, 'testing')
False
>>> w._has_changed(None, None)
False
>>> w._has_changed(None, u'')
False
>>> w._has_changed(u'', None)
False
>>> w._has_changed(u'', u'')
False
>>> w._has_changed(False, u'on')
True
>>> w._has_changed(True, u'on')
False
>>> w._has_changed(True, u'')
True
# Select Widget ###############################################################
>>> w = Select()
>>> print w.render('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select name="beatle">
<option value="J" selected="selected">John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>
If the value is None, none of the options are selected:
>>> print w.render('beatle', None, choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select name="beatle">
<option value="J">John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>
If the value corresponds to a label (but not to an option value), none of the options are selected:
>>> print w.render('beatle', 'John', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select name="beatle">
<option value="J">John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>
The value is compared to its str():
>>> print w.render('num', 2, choices=[('1', '1'), ('2', '2'), ('3', '3')])
<select name="num">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
</select>
>>> print w.render('num', '2', choices=[(1, 1), (2, 2), (3, 3)])
<select name="num">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
</select>
>>> print w.render('num', 2, choices=[(1, 1), (2, 2), (3, 3)])
<select name="num">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
</select>
The 'choices' argument can be any iterable:
>>> from itertools import chain
>>> def get_choices():
... for i in range(5):
... yield (i, i)
>>> print w.render('num', 2, choices=get_choices())
<select name="num">
<option value="0">0</option>
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
>>> things = ({'id': 1, 'name': 'And Boom'}, {'id': 2, 'name': 'One More Thing!'})
>>> class SomeForm(Form):
... somechoice = ChoiceField(choices=chain((('', '-'*9),), [(thing['id'], thing['name']) for thing in things]))
>>> f = SomeForm()
>>> f.as_table()
u'<tr><th><label for="id_somechoice">Somechoice:</label></th><td><select name="somechoice" id="id_somechoice">\n<option value="" selected="selected">---------</option>\n<option value="1">And Boom</option>\n<option value="2">One More Thing!</option>\n</select></td></tr>'
>>> f.as_table()
u'<tr><th><label for="id_somechoice">Somechoice:</label></th><td><select name="somechoice" id="id_somechoice">\n<option value="" selected="selected">---------</option>\n<option value="1">And Boom</option>\n<option value="2">One More Thing!</option>\n</select></td></tr>'
>>> f = SomeForm({'somechoice': 2})
>>> f.as_table()
u'<tr><th><label for="id_somechoice">Somechoice:</label></th><td><select name="somechoice" id="id_somechoice">\n<option value="">---------</option>\n<option value="1">And Boom</option>\n<option value="2" selected="selected">One More Thing!</option>\n</select></td></tr>'
You can also pass 'choices' to the constructor:
>>> w = Select(choices=[(1, 1), (2, 2), (3, 3)])
>>> print w.render('num', 2)
<select name="num">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
</select>
If 'choices' is passed to both the constructor and render(), then they'll both be in the output:
>>> print w.render('num', 2, choices=[(4, 4), (5, 5)])
<select name="num">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
</select>
# Choices are escaped correctly
>>> print w.render('escape', None, choices=(('bad', 'you & me'), ('good', mark_safe('you &gt; me'))))
<select name="escape">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="bad">you &amp; me</option>
<option value="good">you &gt; me</option>
</select>
# Unicode choices are correctly rendered as HTML
>>> w.render('email', 'ŠĐĆŽćžšđ', choices=[('ŠĐĆŽćžšđ', 'ŠĐabcĆŽćžšđ'), ('ćžšđ', 'abcćžšđ')])
u'<select name="email">\n<option value="1">1</option>\n<option value="2">2</option>\n<option value="3">3</option>\n<option value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" selected="selected">\u0160\u0110abc\u0106\u017d\u0107\u017e\u0161\u0111</option>\n<option value="\u0107\u017e\u0161\u0111">abc\u0107\u017e\u0161\u0111</option>\n</select>'
If choices is passed to the constructor and is a generator, it can be iterated
over multiple times without getting consumed:
>>> w = Select(choices=get_choices())
>>> print w.render('num', 2)
<select name="num">
<option value="0">0</option>
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
>>> print w.render('num', 3)
<select name="num">
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3" selected="selected">3</option>
<option value="4">4</option>
</select>
Choices can be nested one level in order to create HTML optgroups:
>>> w.choices=(('outer1', 'Outer 1'), ('Group "1"', (('inner1', 'Inner 1'), ('inner2', 'Inner 2'))))
>>> print w.render('nestchoice', None)
<select name="nestchoice">
<option value="outer1">Outer 1</option>
<optgroup label="Group &quot;1&quot;">
<option value="inner1">Inner 1</option>
<option value="inner2">Inner 2</option>
</optgroup>
</select>
>>> print w.render('nestchoice', 'outer1')
<select name="nestchoice">
<option value="outer1" selected="selected">Outer 1</option>
<optgroup label="Group &quot;1&quot;">
<option value="inner1">Inner 1</option>
<option value="inner2">Inner 2</option>
</optgroup>
</select>
>>> print w.render('nestchoice', 'inner1')
<select name="nestchoice">
<option value="outer1">Outer 1</option>
<optgroup label="Group &quot;1&quot;">
<option value="inner1" selected="selected">Inner 1</option>
<option value="inner2">Inner 2</option>
</optgroup>
</select>
# NullBooleanSelect Widget ####################################################
>>> w = NullBooleanSelect()
>>> print w.render('is_cool', True)
<select name="is_cool">
<option value="1">Unknown</option>
<option value="2" selected="selected">Yes</option>
<option value="3">No</option>
</select>
>>> print w.render('is_cool', False)
<select name="is_cool">
<option value="1">Unknown</option>
<option value="2">Yes</option>
<option value="3" selected="selected">No</option>
</select>
>>> print w.render('is_cool', None)
<select name="is_cool">
<option value="1" selected="selected">Unknown</option>
<option value="2">Yes</option>
<option value="3">No</option>
</select>
>>> print w.render('is_cool', '2')
<select name="is_cool">
<option value="1">Unknown</option>
<option value="2" selected="selected">Yes</option>
<option value="3">No</option>
</select>
>>> print w.render('is_cool', '3')
<select name="is_cool">
<option value="1">Unknown</option>
<option value="2">Yes</option>
<option value="3" selected="selected">No</option>
</select>
""" + \
r""" # [This concatenation is to keep the string below the jython's 32K limit].
# SelectMultiple Widget #######################################################
>>> w = SelectMultiple()
>>> print w.render('beatles', ['J'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select multiple="multiple" name="beatles">
<option value="J" selected="selected">John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>
>>> print w.render('beatles', ['J', 'P'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select multiple="multiple" name="beatles">
<option value="J" selected="selected">John</option>
<option value="P" selected="selected">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>
>>> print w.render('beatles', ['J', 'P', 'R'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select multiple="multiple" name="beatles">
<option value="J" selected="selected">John</option>
<option value="P" selected="selected">Paul</option>
<option value="G">George</option>
<option value="R" selected="selected">Ringo</option>
</select>
If the value is None, none of the options are selected:
>>> print w.render('beatles', None, choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select multiple="multiple" name="beatles">
<option value="J">John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>
If the value corresponds to a label (but not to an option value), none of the options are selected:
>>> print w.render('beatles', ['John'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select multiple="multiple" name="beatles">
<option value="J">John</option>
<option value="P">Paul</option>
<option value="G">George</option>
<option value="R">Ringo</option>
</select>
If multiple values are given, but some of them are not valid, the valid ones are selected:
>>> print w.render('beatles', ['J', 'G', 'foo'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<select multiple="multiple" name="beatles">
<option value="J" selected="selected">John</option>
<option value="P">Paul</option>
<option value="G" selected="selected">George</option>
<option value="R">Ringo</option>
</select>
The value is compared to its str():
>>> print w.render('nums', [2], choices=[('1', '1'), ('2', '2'), ('3', '3')])
<select multiple="multiple" name="nums">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
</select>
>>> print w.render('nums', ['2'], choices=[(1, 1), (2, 2), (3, 3)])
<select multiple="multiple" name="nums">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
</select>
>>> print w.render('nums', [2], choices=[(1, 1), (2, 2), (3, 3)])
<select multiple="multiple" name="nums">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
</select>
The 'choices' argument can be any iterable:
>>> def get_choices():
... for i in range(5):
... yield (i, i)
>>> print w.render('nums', [2], choices=get_choices())
<select multiple="multiple" name="nums">
<option value="0">0</option>
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
You can also pass 'choices' to the constructor:
>>> w = SelectMultiple(choices=[(1, 1), (2, 2), (3, 3)])
>>> print w.render('nums', [2])
<select multiple="multiple" name="nums">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
</select>
If 'choices' is passed to both the constructor and render(), then they'll both be in the output:
>>> print w.render('nums', [2], choices=[(4, 4), (5, 5)])
<select multiple="multiple" name="nums">
<option value="1">1</option>
<option value="2" selected="selected">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
</select>
# Choices are escaped correctly
>>> print w.render('escape', None, choices=(('bad', 'you & me'), ('good', mark_safe('you &gt; me'))))
<select multiple="multiple" name="escape">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="bad">you &amp; me</option>
<option value="good">you &gt; me</option>
</select>
# Unicode choices are correctly rendered as HTML
>>> w.render('nums', ['ŠĐĆŽćžšđ'], choices=[('ŠĐĆŽćžšđ', 'ŠĐabcĆŽćžšđ'), ('ćžšđ', 'abcćžšđ')])
u'<select multiple="multiple" name="nums">\n<option value="1">1</option>\n<option value="2">2</option>\n<option value="3">3</option>\n<option value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" selected="selected">\u0160\u0110abc\u0106\u017d\u0107\u017e\u0161\u0111</option>\n<option value="\u0107\u017e\u0161\u0111">abc\u0107\u017e\u0161\u0111</option>\n</select>'
# Test the usage of _has_changed
>>> w._has_changed(None, None)
False
>>> w._has_changed([], None)
False
>>> w._has_changed(None, [u'1'])
True
>>> w._has_changed([1, 2], [u'1', u'2'])
False
>>> w._has_changed([1, 2], [u'1'])
True
>>> w._has_changed([1, 2], [u'1', u'3'])
True
# Choices can be nested one level in order to create HTML optgroups:
>>> w.choices = (('outer1', 'Outer 1'), ('Group "1"', (('inner1', 'Inner 1'), ('inner2', 'Inner 2'))))
>>> print w.render('nestchoice', None)
<select multiple="multiple" name="nestchoice">
<option value="outer1">Outer 1</option>
<optgroup label="Group &quot;1&quot;">
<option value="inner1">Inner 1</option>
<option value="inner2">Inner 2</option>
</optgroup>
</select>
>>> print w.render('nestchoice', ['outer1'])
<select multiple="multiple" name="nestchoice">
<option value="outer1" selected="selected">Outer 1</option>
<optgroup label="Group &quot;1&quot;">
<option value="inner1">Inner 1</option>
<option value="inner2">Inner 2</option>
</optgroup>
</select>
>>> print w.render('nestchoice', ['inner1'])
<select multiple="multiple" name="nestchoice">
<option value="outer1">Outer 1</option>
<optgroup label="Group &quot;1&quot;">
<option value="inner1" selected="selected">Inner 1</option>
<option value="inner2">Inner 2</option>
</optgroup>
</select>
>>> print w.render('nestchoice', ['outer1', 'inner2'])
<select multiple="multiple" name="nestchoice">
<option value="outer1" selected="selected">Outer 1</option>
<optgroup label="Group &quot;1&quot;">
<option value="inner1">Inner 1</option>
<option value="inner2" selected="selected">Inner 2</option>
</optgroup>
</select>
# RadioSelect Widget ##########################################################
>>> w = RadioSelect()
>>> print w.render('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input checked="checked" type="radio" name="beatle" value="J" /> John</label></li>
<li><label><input type="radio" name="beatle" value="P" /> Paul</label></li>
<li><label><input type="radio" name="beatle" value="G" /> George</label></li>
<li><label><input type="radio" name="beatle" value="R" /> Ringo</label></li>
</ul>
If the value is None, none of the options are checked:
>>> print w.render('beatle', None, choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input type="radio" name="beatle" value="J" /> John</label></li>
<li><label><input type="radio" name="beatle" value="P" /> Paul</label></li>
<li><label><input type="radio" name="beatle" value="G" /> George</label></li>
<li><label><input type="radio" name="beatle" value="R" /> Ringo</label></li>
</ul>
If the value corresponds to a label (but not to an option value), none of the options are checked:
>>> print w.render('beatle', 'John', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input type="radio" name="beatle" value="J" /> John</label></li>
<li><label><input type="radio" name="beatle" value="P" /> Paul</label></li>
<li><label><input type="radio" name="beatle" value="G" /> George</label></li>
<li><label><input type="radio" name="beatle" value="R" /> Ringo</label></li>
</ul>
The value is compared to its str():
>>> print w.render('num', 2, choices=[('1', '1'), ('2', '2'), ('3', '3')])
<ul>
<li><label><input type="radio" name="num" value="1" /> 1</label></li>
<li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
<li><label><input type="radio" name="num" value="3" /> 3</label></li>
</ul>
>>> print w.render('num', '2', choices=[(1, 1), (2, 2), (3, 3)])
<ul>
<li><label><input type="radio" name="num" value="1" /> 1</label></li>
<li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
<li><label><input type="radio" name="num" value="3" /> 3</label></li>
</ul>
>>> print w.render('num', 2, choices=[(1, 1), (2, 2), (3, 3)])
<ul>
<li><label><input type="radio" name="num" value="1" /> 1</label></li>
<li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
<li><label><input type="radio" name="num" value="3" /> 3</label></li>
</ul>
The 'choices' argument can be any iterable:
>>> def get_choices():
... for i in range(5):
... yield (i, i)
>>> print w.render('num', 2, choices=get_choices())
<ul>
<li><label><input type="radio" name="num" value="0" /> 0</label></li>
<li><label><input type="radio" name="num" value="1" /> 1</label></li>
<li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
<li><label><input type="radio" name="num" value="3" /> 3</label></li>
<li><label><input type="radio" name="num" value="4" /> 4</label></li>
</ul>
You can also pass 'choices' to the constructor:
>>> w = RadioSelect(choices=[(1, 1), (2, 2), (3, 3)])
>>> print w.render('num', 2)
<ul>
<li><label><input type="radio" name="num" value="1" /> 1</label></li>
<li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
<li><label><input type="radio" name="num" value="3" /> 3</label></li>
</ul>
If 'choices' is passed to both the constructor and render(), then they'll both be in the output:
>>> print w.render('num', 2, choices=[(4, 4), (5, 5)])
<ul>
<li><label><input type="radio" name="num" value="1" /> 1</label></li>
<li><label><input checked="checked" type="radio" name="num" value="2" /> 2</label></li>
<li><label><input type="radio" name="num" value="3" /> 3</label></li>
<li><label><input type="radio" name="num" value="4" /> 4</label></li>
<li><label><input type="radio" name="num" value="5" /> 5</label></li>
</ul>
RadioSelect uses a RadioFieldRenderer to render the individual radio inputs.
You can manipulate that object directly to customize the way the RadioSelect
is rendered.
>>> w = RadioSelect()
>>> r = w.get_renderer('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
>>> for inp in r:
... print inp
<label><input checked="checked" type="radio" name="beatle" value="J" /> John</label>
<label><input type="radio" name="beatle" value="P" /> Paul</label>
<label><input type="radio" name="beatle" value="G" /> George</label>
<label><input type="radio" name="beatle" value="R" /> Ringo</label>
>>> for inp in r:
... print '%s<br />' % inp
<label><input checked="checked" type="radio" name="beatle" value="J" /> John</label><br />
<label><input type="radio" name="beatle" value="P" /> Paul</label><br />
<label><input type="radio" name="beatle" value="G" /> George</label><br />
<label><input type="radio" name="beatle" value="R" /> Ringo</label><br />
>>> for inp in r:
... print '<p>%s %s</p>' % (inp.tag(), inp.choice_label)
<p><input checked="checked" type="radio" name="beatle" value="J" /> John</p>
<p><input type="radio" name="beatle" value="P" /> Paul</p>
<p><input type="radio" name="beatle" value="G" /> George</p>
<p><input type="radio" name="beatle" value="R" /> Ringo</p>
>>> for inp in r:
... print '%s %s %s %s %s' % (inp.name, inp.value, inp.choice_value, inp.choice_label, inp.is_checked())
beatle J J John True
beatle J P Paul False
beatle J G George False
beatle J R Ringo False
You can create your own custom renderers for RadioSelect to use.
>>> class MyRenderer(RadioFieldRenderer):
... def render(self):
... return u'<br />\n'.join([unicode(choice) for choice in self])
>>> w = RadioSelect(renderer=MyRenderer)
>>> print w.render('beatle', 'G', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<label><input type="radio" name="beatle" value="J" /> John</label><br />
<label><input type="radio" name="beatle" value="P" /> Paul</label><br />
<label><input checked="checked" type="radio" name="beatle" value="G" /> George</label><br />
<label><input type="radio" name="beatle" value="R" /> Ringo</label>
Or you can use custom RadioSelect fields that use your custom renderer.
>>> class CustomRadioSelect(RadioSelect):
... renderer = MyRenderer
>>> w = CustomRadioSelect()
>>> print w.render('beatle', 'G', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<label><input type="radio" name="beatle" value="J" /> John</label><br />
<label><input type="radio" name="beatle" value="P" /> Paul</label><br />
<label><input checked="checked" type="radio" name="beatle" value="G" /> George</label><br />
<label><input type="radio" name="beatle" value="R" /> Ringo</label>
A RadioFieldRenderer object also allows index access to individual RadioInput
objects.
>>> w = RadioSelect()
>>> r = w.get_renderer('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
>>> print r[1]
<label><input type="radio" name="beatle" value="P" /> Paul</label>
>>> print r[0]
<label><input checked="checked" type="radio" name="beatle" value="J" /> John</label>
>>> r[0].is_checked()
True
>>> r[1].is_checked()
False
>>> r[1].name, r[1].value, r[1].choice_value, r[1].choice_label
('beatle', u'J', u'P', u'Paul')
>>> r[10] # doctest: +IGNORE_EXCEPTION_DETAIL
Traceback (most recent call last):
...
IndexError: list index out of range
# Choices are escaped correctly
>>> w = RadioSelect()
>>> print w.render('escape', None, choices=(('bad', 'you & me'), ('good', mark_safe('you &gt; me'))))
<ul>
<li><label><input type="radio" name="escape" value="bad" /> you &amp; me</label></li>
<li><label><input type="radio" name="escape" value="good" /> you &gt; me</label></li>
</ul>
# Unicode choices are correctly rendered as HTML
>>> w = RadioSelect()
>>> unicode(w.render('email', 'ŠĐĆŽćžšđ', choices=[('ŠĐĆŽćžšđ', 'ŠĐabcĆŽćžšđ'), ('ćžšđ', 'abcćžšđ')]))
u'<ul>\n<li><label><input checked="checked" type="radio" name="email" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" /> \u0160\u0110abc\u0106\u017d\u0107\u017e\u0161\u0111</label></li>\n<li><label><input type="radio" name="email" value="\u0107\u017e\u0161\u0111" /> abc\u0107\u017e\u0161\u0111</label></li>\n</ul>'
# Attributes provided at instantiation are passed to the constituent inputs
>>> w = RadioSelect(attrs={'id':'foo'})
>>> print w.render('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label for="foo_0"><input checked="checked" type="radio" id="foo_0" value="J" name="beatle" /> John</label></li>
<li><label for="foo_1"><input type="radio" id="foo_1" value="P" name="beatle" /> Paul</label></li>
<li><label for="foo_2"><input type="radio" id="foo_2" value="G" name="beatle" /> George</label></li>
<li><label for="foo_3"><input type="radio" id="foo_3" value="R" name="beatle" /> Ringo</label></li>
</ul>
# Attributes provided at render-time are passed to the constituent inputs
>>> w = RadioSelect()
>>> print w.render('beatle', 'J', choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')), attrs={'id':'bar'})
<ul>
<li><label for="bar_0"><input checked="checked" type="radio" id="bar_0" value="J" name="beatle" /> John</label></li>
<li><label for="bar_1"><input type="radio" id="bar_1" value="P" name="beatle" /> Paul</label></li>
<li><label for="bar_2"><input type="radio" id="bar_2" value="G" name="beatle" /> George</label></li>
<li><label for="bar_3"><input type="radio" id="bar_3" value="R" name="beatle" /> Ringo</label></li>
</ul>
# CheckboxSelectMultiple Widget ###############################################
>>> w = CheckboxSelectMultiple()
>>> print w.render('beatles', ['J'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input checked="checked" type="checkbox" name="beatles" value="J" /> John</label></li>
<li><label><input type="checkbox" name="beatles" value="P" /> Paul</label></li>
<li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
<li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
</ul>
>>> print w.render('beatles', ['J', 'P'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input checked="checked" type="checkbox" name="beatles" value="J" /> John</label></li>
<li><label><input checked="checked" type="checkbox" name="beatles" value="P" /> Paul</label></li>
<li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
<li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
</ul>
>>> print w.render('beatles', ['J', 'P', 'R'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input checked="checked" type="checkbox" name="beatles" value="J" /> John</label></li>
<li><label><input checked="checked" type="checkbox" name="beatles" value="P" /> Paul</label></li>
<li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
<li><label><input checked="checked" type="checkbox" name="beatles" value="R" /> Ringo</label></li>
</ul>
If the value is None, none of the options are selected:
>>> print w.render('beatles', None, choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input type="checkbox" name="beatles" value="J" /> John</label></li>
<li><label><input type="checkbox" name="beatles" value="P" /> Paul</label></li>
<li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
<li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
</ul>
If the value corresponds to a label (but not to an option value), none of the options are selected:
>>> print w.render('beatles', ['John'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input type="checkbox" name="beatles" value="J" /> John</label></li>
<li><label><input type="checkbox" name="beatles" value="P" /> Paul</label></li>
<li><label><input type="checkbox" name="beatles" value="G" /> George</label></li>
<li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
</ul>
If multiple values are given, but some of them are not valid, the valid ones are selected:
>>> print w.render('beatles', ['J', 'G', 'foo'], choices=(('J', 'John'), ('P', 'Paul'), ('G', 'George'), ('R', 'Ringo')))
<ul>
<li><label><input checked="checked" type="checkbox" name="beatles" value="J" /> John</label></li>
<li><label><input type="checkbox" name="beatles" value="P" /> Paul</label></li>
<li><label><input checked="checked" type="checkbox" name="beatles" value="G" /> George</label></li>
<li><label><input type="checkbox" name="beatles" value="R" /> Ringo</label></li>
</ul>
The value is compared to its str():
>>> print w.render('nums', [2], choices=[('1', '1'), ('2', '2'), ('3', '3')])
<ul>
<li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
<li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
<li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
</ul>
>>> print w.render('nums', ['2'], choices=[(1, 1), (2, 2), (3, 3)])
<ul>
<li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
<li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
<li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
</ul>
>>> print w.render('nums', [2], choices=[(1, 1), (2, 2), (3, 3)])
<ul>
<li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
<li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
<li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
</ul>
The 'choices' argument can be any iterable:
>>> def get_choices():
... for i in range(5):
... yield (i, i)
>>> print w.render('nums', [2], choices=get_choices())
<ul>
<li><label><input type="checkbox" name="nums" value="0" /> 0</label></li>
<li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
<li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
<li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
<li><label><input type="checkbox" name="nums" value="4" /> 4</label></li>
</ul>
You can also pass 'choices' to the constructor:
>>> w = CheckboxSelectMultiple(choices=[(1, 1), (2, 2), (3, 3)])
>>> print w.render('nums', [2])
<ul>
<li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
<li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
<li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
</ul>
If 'choices' is passed to both the constructor and render(), then they'll both be in the output:
>>> print w.render('nums', [2], choices=[(4, 4), (5, 5)])
<ul>
<li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>
<li><label><input checked="checked" type="checkbox" name="nums" value="2" /> 2</label></li>
<li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>
<li><label><input type="checkbox" name="nums" value="4" /> 4</label></li>
<li><label><input type="checkbox" name="nums" value="5" /> 5</label></li>
</ul>
# Choices are escaped correctly
>>> print w.render('escape', None, choices=(('bad', 'you & me'), ('good', mark_safe('you &gt; me'))))
<ul>
<li><label><input type="checkbox" name="escape" value="1" /> 1</label></li>
<li><label><input type="checkbox" name="escape" value="2" /> 2</label></li>
<li><label><input type="checkbox" name="escape" value="3" /> 3</label></li>
<li><label><input type="checkbox" name="escape" value="bad" /> you &amp; me</label></li>
<li><label><input type="checkbox" name="escape" value="good" /> you &gt; me</label></li>
</ul>
# Test the usage of _has_changed
>>> w._has_changed(None, None)
False
>>> w._has_changed([], None)
False
>>> w._has_changed(None, [u'1'])
True
>>> w._has_changed([1, 2], [u'1', u'2'])
False
>>> w._has_changed([1, 2], [u'1'])
True
>>> w._has_changed([1, 2], [u'1', u'3'])
True
# Unicode choices are correctly rendered as HTML
>>> w.render('nums', ['ŠĐĆŽćžšđ'], choices=[('ŠĐĆŽćžšđ', 'ŠĐabcĆŽćžšđ'), ('ćžšđ', 'abcćžšđ')])
u'<ul>\n<li><label><input type="checkbox" name="nums" value="1" /> 1</label></li>\n<li><label><input type="checkbox" name="nums" value="2" /> 2</label></li>\n<li><label><input type="checkbox" name="nums" value="3" /> 3</label></li>\n<li><label><input checked="checked" type="checkbox" name="nums" value="\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111" /> \u0160\u0110abc\u0106\u017d\u0107\u017e\u0161\u0111</label></li>\n<li><label><input type="checkbox" name="nums" value="\u0107\u017e\u0161\u0111" /> abc\u0107\u017e\u0161\u0111</label></li>\n</ul>'
# MultiWidget #################################################################
>>> class MyMultiWidget(MultiWidget):
... def decompress(self, value):
... if value:
... return value.split('__')
... return ['', '']
... def format_output(self, rendered_widgets):
... return u'<br />'.join(rendered_widgets)
>>> w = MyMultiWidget(widgets=(TextInput(attrs={'class': 'big'}), TextInput(attrs={'class': 'small'})))
>>> w.render('name', ['john', 'lennon'])
u'<input type="text" class="big" value="john" name="name_0" /><br /><input type="text" class="small" value="lennon" name="name_1" />'
>>> w.render('name', 'john__lennon')
u'<input type="text" class="big" value="john" name="name_0" /><br /><input type="text" class="small" value="lennon" name="name_1" />'
>>> w.render('name', 'john__lennon', attrs={'id':'foo'})
u'<input id="foo_0" type="text" class="big" value="john" name="name_0" /><br /><input id="foo_1" type="text" class="small" value="lennon" name="name_1" />'
>>> w = MyMultiWidget(widgets=(TextInput(attrs={'class': 'big'}), TextInput(attrs={'class': 'small'})), attrs={'id': 'bar'})
>>> w.render('name', ['john', 'lennon'])
u'<input id="bar_0" type="text" class="big" value="john" name="name_0" /><br /><input id="bar_1" type="text" class="small" value="lennon" name="name_1" />'
>>> w = MyMultiWidget(widgets=(TextInput(), TextInput()))
# test with no initial data
>>> w._has_changed(None, [u'john', u'lennon'])
True
# test when the data is the same as initial
>>> w._has_changed(u'john__lennon', [u'john', u'lennon'])
False
# test when the first widget's data has changed
>>> w._has_changed(u'john__lennon', [u'alfred', u'lennon'])
True
# test when the last widget's data has changed. this ensures that it is not
# short circuiting while testing the widgets.
>>> w._has_changed(u'john__lennon', [u'john', u'denver'])
True
# SplitDateTimeWidget #########################################################
>>> w = SplitDateTimeWidget()
>>> w.render('date', '')
u'<input type="text" name="date_0" /><input type="text" name="date_1" />'
>>> w.render('date', None)
u'<input type="text" name="date_0" /><input type="text" name="date_1" />'
>>> w.render('date', datetime.datetime(2006, 1, 10, 7, 30))
u'<input type="text" name="date_0" value="2006-01-10" /><input type="text" name="date_1" value="07:30:00" />'
>>> w.render('date', [datetime.date(2006, 1, 10), datetime.time(7, 30)])
u'<input type="text" name="date_0" value="2006-01-10" /><input type="text" name="date_1" value="07:30:00" />'
You can also pass 'attrs' to the constructor. In this case, the attrs will be
included on both widgets.
>>> w = SplitDateTimeWidget(attrs={'class': 'pretty'})
>>> w.render('date', datetime.datetime(2006, 1, 10, 7, 30))
u'<input type="text" class="pretty" value="2006-01-10" name="date_0" /><input type="text" class="pretty" value="07:30:00" name="date_1" />'
>>> w._has_changed(datetime.datetime(2008, 5, 5, 12, 40, 00), [u'2008-05-05', u'12:40:00'])
False
>>> w._has_changed(datetime.datetime(2008, 5, 5, 12, 40, 00), [u'2008-05-05', u'12:41:00'])
True
# DateTimeInput ###############################################################
>>> w = DateTimeInput()
>>> w.render('date', None)
u'<input type="text" name="date" />'
>>> d = datetime.datetime(2007, 9, 17, 12, 51, 34, 482548)
>>> print d
2007-09-17 12:51:34.482548
The microseconds are trimmed on display, by default.
>>> w.render('date', d)
u'<input type="text" name="date" value="2007-09-17 12:51:34" />'
>>> w.render('date', datetime.datetime(2007, 9, 17, 12, 51, 34))
u'<input type="text" name="date" value="2007-09-17 12:51:34" />'
>>> w.render('date', datetime.datetime(2007, 9, 17, 12, 51))
u'<input type="text" name="date" value="2007-09-17 12:51:00" />'
# TimeInput ###############################################################
>>> w = TimeInput()
>>> w.render('time', None)
u'<input type="text" name="time" />'
>>> t = datetime.time(12, 51, 34, 482548)
>>> print t
12:51:34.482548
The microseconds are trimmed on display, by default.
>>> w.render('time', t)
u'<input type="text" name="time" value="12:51:34" />'
>>> w.render('time', datetime.time(12, 51, 34))
u'<input type="text" name="time" value="12:51:34" />'
>>> w.render('time', datetime.time(12, 51))
u'<input type="text" name="time" value="12:51:00" />'
"""