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newforms: Added django.newforms.extras.widgets, with SelectDateWidget implementation, plus some unit tests
git-svn-id: http://code.djangoproject.com/svn/django/trunk@4236 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty
parent
3d9b12b2d8
commit
86870e7587
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from widgets import *
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"""
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Extra HTML Widget classes
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"""
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from django.newforms.widgets import Widget, Select
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from django.utils.dates import MONTHS
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import datetime
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__all__ = ('SelectDateWidget',)
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class SelectDateWidget(Widget):
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"""
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A Widget that splits date input into three <select> boxes.
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This also serves as an example of a Widget that has more than one HTML
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element and hence implements value_from_datadict.
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"""
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month_field = '%s_month'
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day_field = '%s_day'
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year_field = '%s_year'
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def __init__(self, attrs=None, years=None):
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# years is an optional list/tuple of years to use in the "year" select box.
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self.attrs = attrs or {}
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if years:
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self.years = years
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else:
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this_year = datetime.date.today().year
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self.years = range(this_year, this_year+10)
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def render(self, name, value, attrs=None):
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try:
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value = datetime.date(*map(int, value.split('-')))
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year_val, month_val, day_val = value.year, value.month, value.day
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except (AttributeError, TypeError, ValueError):
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year_val = month_val = day_val = None
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output = []
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month_choices = MONTHS.items()
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month_choices.sort()
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select_html = Select(choices=month_choices).render(self.month_field % name, month_val)
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output.append(select_html)
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day_choices = [(i, i) for i in range(1, 32)]
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select_html = Select(choices=day_choices).render(self.day_field % name, day_val)
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output.append(select_html)
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year_choices = [(i, i) for i in self.years]
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select_html = Select(choices=year_choices).render(self.year_field % name, year_val)
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output.append(select_html)
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return u'\n'.join(output)
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def value_from_datadict(self, data, name):
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y, m, d = data.get(self.year_field % name), data.get(self.month_field % name), data.get(self.day_field % name)
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if y and m and d:
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return '%s-%s-%s' % (y, m, d)
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return None
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@ -2342,6 +2342,141 @@ the list of errors is empty). You can also use it in {% if %} statements.
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<p><label>Password (again): <input type="password" name="password2" value="bar" /></label></p>
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<input type="submit" />
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</form>
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#################
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# Extra widgets #
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#################
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The newforms library comes with some extra, higher-level Widget classes that
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demonstrate some of the library's abilities.
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# SelectDateWidget ############################################################
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>>> from django.newforms.extras import SelectDateWidget
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>>> w = SelectDateWidget()
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>>> print w.render('mydate', '')
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<select name="mydate_month">
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<option value="1">January</option>
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<option value="2">February</option>
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<option value="3">March</option>
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<option value="4">April</option>
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<option value="5">May</option>
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<option value="6">June</option>
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<option value="7">July</option>
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<option value="8">August</option>
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<option value="9">September</option>
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<option value="10">October</option>
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<option value="11">November</option>
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<option value="12">December</option>
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</select>
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<select name="mydate_day">
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<option value="1">1</option>
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<option value="2">2</option>
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<option value="3">3</option>
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<option value="4">4</option>
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<option value="5">5</option>
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<option value="6">6</option>
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<option value="7">7</option>
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<option value="8">8</option>
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<option value="9">9</option>
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<option value="10">10</option>
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<option value="11">11</option>
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<option value="12">12</option>
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<option value="13">13</option>
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<option value="14">14</option>
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<option value="15">15</option>
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<option value="16">16</option>
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<option value="17">17</option>
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<option value="18">18</option>
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<option value="19">19</option>
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<option value="20">20</option>
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<option value="21">21</option>
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<option value="22">22</option>
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<option value="23">23</option>
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<option value="24">24</option>
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<option value="25">25</option>
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<option value="26">26</option>
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<option value="27">27</option>
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<option value="28">28</option>
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<option value="29">29</option>
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<option value="30">30</option>
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<option value="31">31</option>
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</select>
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<select name="mydate_year">
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<option value="2006">2006</option>
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<option value="2007">2007</option>
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<option value="2008">2008</option>
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<option value="2009">2009</option>
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<option value="2010">2010</option>
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<option value="2011">2011</option>
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<option value="2012">2012</option>
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<option value="2013">2013</option>
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<option value="2014">2014</option>
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<option value="2015">2015</option>
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</select>
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>>> w.render('mydate', None) == w.render('mydate', '')
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True
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>>> print w.render('mydate', '2010-04-15')
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<select name="mydate_month">
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<option value="1">January</option>
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<option value="2">February</option>
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<option value="3">March</option>
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<option value="4" selected="selected">April</option>
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<option value="5">May</option>
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<option value="6">June</option>
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<option value="7">July</option>
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<option value="8">August</option>
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<option value="9">September</option>
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<option value="10">October</option>
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<option value="11">November</option>
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<option value="12">December</option>
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</select>
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<select name="mydate_day">
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<option value="1">1</option>
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<option value="2">2</option>
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<option value="3">3</option>
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<option value="4">4</option>
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<option value="5">5</option>
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<option value="6">6</option>
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<option value="7">7</option>
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<option value="8">8</option>
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<option value="9">9</option>
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<option value="10">10</option>
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<option value="11">11</option>
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<option value="12">12</option>
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<option value="13">13</option>
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<option value="14">14</option>
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<option value="15" selected="selected">15</option>
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<option value="16">16</option>
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<option value="17">17</option>
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<option value="18">18</option>
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<option value="19">19</option>
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<option value="20">20</option>
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<option value="21">21</option>
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<option value="22">22</option>
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<option value="23">23</option>
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<option value="24">24</option>
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<option value="25">25</option>
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<option value="26">26</option>
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<option value="27">27</option>
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<option value="28">28</option>
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<option value="29">29</option>
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<option value="30">30</option>
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<option value="31">31</option>
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</select>
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<select name="mydate_year">
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<option value="2006">2006</option>
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<option value="2007">2007</option>
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<option value="2008">2008</option>
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<option value="2009">2009</option>
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<option value="2010" selected="selected">2010</option>
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<option value="2011">2011</option>
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<option value="2012">2012</option>
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<option value="2013">2013</option>
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<option value="2014">2014</option>
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<option value="2015">2015</option>
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</select>
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"""
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if __name__ == "__main__":
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