app/django/forms/extras/widgets.py
author Lennard de Rijk <ljvderijk@gmail.com>
Sat, 14 Feb 2009 21:18:12 +0000
changeset 1328 cd175dddc15c
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Added bulk acceptance and progress bar in review org applications view. In the list of organization applications for reviewing, if you click the button "click here" the whole first text line will fade out and the progress bar will fade in while starting to contact the server for the list of orgs to accept and then make synchronous calls for acceptance, while updating the progress bar, the name of the organization currently accepting and the number of orgs already accepted against the total. Inside the script, what's inside the parenthesis is converted due to regexp (in this case (link_id)) and then read the json_object.applications[index].link_id. By doing this with an eval(), you can use other names as well and the script will be reading for example json_object.applications[index].attribute_name if you insert "(attribute_name)" inside the link returned by {{ bulk_accept_link }}. Notes by Lennard: -Put Done outside the for-loop so that it also shows when there are 0 pre-accepted organizations. -Made some minor style fixes Patch by: Mario Ferraro Reviewed by: Lennard de Rijk

"""
Extra HTML Widget classes
"""

import datetime
import re

from django.forms.widgets import Widget, Select
from django.utils.dates import MONTHS
from django.utils.safestring import mark_safe

__all__ = ('SelectDateWidget',)

RE_DATE = re.compile(r'(\d{4})-(\d\d?)-(\d\d?)$')

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:
            year_val, month_val, day_val = value.year, value.month, value.day
        except AttributeError:
            year_val = month_val = day_val = None
            if isinstance(value, basestring):
                match = RE_DATE.match(value)
                if match:
                    year_val, month_val, day_val = [int(v) for v in match.groups()]

        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)