74 lines
2.5 KiB
Python
74 lines
2.5 KiB
Python
"""
|
|
Extra HTML Widget classes
|
|
"""
|
|
|
|
import datetime
|
|
|
|
from django.newforms.widgets import Widget, Select
|
|
from django.utils.dates import MONTHS
|
|
from django.utils.safestring import mark_safe
|
|
|
|
__all__ = ('SelectDateWidget',)
|
|
|
|
class SelectDateWidget(Widget):
|
|
"""
|
|
A Widget that splits date input into three <select> boxes.
|
|
|
|
This also serves as an example of a Widget that has more than one HTML
|
|
element and hence implements value_from_datadict.
|
|
"""
|
|
month_field = '%s_month'
|
|
day_field = '%s_day'
|
|
year_field = '%s_year'
|
|
|
|
def __init__(self, attrs=None, years=None):
|
|
# years is an optional list/tuple of years to use in the "year" select box.
|
|
self.attrs = attrs or {}
|
|
if years:
|
|
self.years = years
|
|
else:
|
|
this_year = datetime.date.today().year
|
|
self.years = range(this_year, this_year+10)
|
|
|
|
def render(self, name, value, attrs=None):
|
|
try:
|
|
value = datetime.date(*map(int, value.split('-')))
|
|
year_val, month_val, day_val = value.year, value.month, value.day
|
|
except (AttributeError, TypeError, ValueError):
|
|
year_val = month_val = day_val = None
|
|
|
|
output = []
|
|
|
|
if 'id' in self.attrs:
|
|
id_ = self.attrs['id']
|
|
else:
|
|
id_ = 'id_%s' % name
|
|
|
|
month_choices = MONTHS.items()
|
|
month_choices.sort()
|
|
local_attrs = self.build_attrs(id=self.month_field % id_)
|
|
select_html = Select(choices=month_choices).render(self.month_field % name, month_val, local_attrs)
|
|
output.append(select_html)
|
|
|
|
day_choices = [(i, i) for i in range(1, 32)]
|
|
local_attrs['id'] = self.day_field % id_
|
|
select_html = Select(choices=day_choices).render(self.day_field % name, day_val, local_attrs)
|
|
output.append(select_html)
|
|
|
|
year_choices = [(i, i) for i in self.years]
|
|
local_attrs['id'] = self.year_field % id_
|
|
select_html = Select(choices=year_choices).render(self.year_field % name, year_val, local_attrs)
|
|
output.append(select_html)
|
|
|
|
return mark_safe(u'\n'.join(output))
|
|
|
|
def id_for_label(self, id_):
|
|
return '%s_month' % id_
|
|
id_for_label = classmethod(id_for_label)
|
|
|
|
def value_from_datadict(self, data, files, name):
|
|
y, m, d = data.get(self.year_field % name), data.get(self.month_field % name), data.get(self.day_field % name)
|
|
if y and m and d:
|
|
return '%s-%s-%s' % (y, m, d)
|
|
return data.get(name, None)
|