--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/forms/extras/widgets.py	Wed Jun 02 18:57:35 2010 +0200
@@ -0,0 +1,121 @@
+"""
+Extra HTML Widget classes
+"""
+
+import time
+import datetime
+import re
+
+from django.forms.widgets import Widget, Select
+from django.utils import datetime_safe
+from django.utils.dates import MONTHS
+from django.utils.safestring import mark_safe
+from django.utils.formats import get_format
+from django.conf import settings
+
+__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.
+    """
+    none_value = (0, '---')
+    month_field = '%s_month'
+    day_field = '%s_day'
+    year_field = '%s_year'
+
+    def __init__(self, attrs=None, years=None, required=True):
+        # years is an optional list/tuple of years to use in the "year" select box.
+        self.attrs = attrs or {}
+        self.required = required
+        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):
+                if settings.USE_L10N:
+                    try:
+                        input_format = get_format('DATE_INPUT_FORMATS')[0]
+                        # Python 2.4 compatibility:
+                        #     v = datetime.datetime.strptime(value, input_format)
+                        # would be clearer, but datetime.strptime was added in 
+                        # Python 2.5
+                        v = datetime.datetime(*(time.strptime(value, input_format)[0:6]))
+                        year_val, month_val, day_val = v.year, v.month, v.day
+                    except ValueError:
+                        pass
+                else:
+                    match = RE_DATE.match(value)
+                    if match:
+                        year_val, month_val, day_val = [int(v) for v in match.groups()]
+        choices = [(i, i) for i in self.years]
+        year_html = self.create_select(name, self.year_field, value, year_val, choices)
+        choices = MONTHS.items()
+        month_html = self.create_select(name, self.month_field, value, month_val, choices)
+        choices = [(i, i) for i in range(1, 32)]
+        day_html = self.create_select(name, self.day_field, value, day_val,  choices)
+
+        format = get_format('DATE_FORMAT')
+        escaped = False
+        output = []
+        for char in format:
+            if escaped:
+                escaped = False
+            elif char == '\\':
+                escaped = True
+            elif char in 'Yy':
+                output.append(year_html)
+            elif char in 'bFMmNn':
+                output.append(month_html)
+            elif char in 'dj':
+                output.append(day_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 = data.get(self.year_field % name)
+        m = data.get(self.month_field % name)
+        d = data.get(self.day_field % name)
+        if y == m == d == "0":
+            return None
+        if y and m and d:
+            if settings.USE_L10N:
+                input_format = get_format('DATE_INPUT_FORMATS')[0]
+                try:
+                    date_value = datetime.date(int(y), int(m), int(d))
+                except ValueError:
+                    pass
+                else:
+                    date_value = datetime_safe.new_date(date_value)
+                    return date_value.strftime(input_format)
+            else:
+                return '%s-%s-%s' % (y, m, d)
+        return data.get(name, None)
+
+    def create_select(self, name, field, value, val, choices):
+        if 'id' in self.attrs:
+            id_ = self.attrs['id']
+        else:
+            id_ = 'id_%s' % name
+        if not (self.required and val):
+            choices.insert(0, self.none_value)
+        local_attrs = self.build_attrs(id=field % id_)
+        s = Select(choices=choices)
+        select_html = s.render(field % name, val, local_attrs)
+        return select_html
+