def isWeekCommencingDate(value):
"""
Validates that a date falls on the first day of the week.
"""
if not is_week_commencing_date(value):
raise ValidationError(
'Enter a date which falls on the first day of the week.')
def testIsWeekCommencingDate(self):
self.assertTrue(is_week_commencing_date(date(2007, 7, 23)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 24)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 25)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 26)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 27)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 28)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 29)))
def testIsWeekCommencingDate(self):
self.assertTrue(is_week_commencing_date(date(2007, 7, 23)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 24)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 25)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 26)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 27)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 28)))
self.assertFalse(is_week_commencing_date(date(2007, 7, 29)))
def week_commencing_date_or_404(year, month, day):
"""
Converts date URL parameters to a date, raising ``Http404`` if the
date is invalid or does not represent the first day of the week.
"""
try:
date = datetime.date(*time.strptime(year+month+day, '%Y%m%d')[:3])
if not is_week_commencing_date(date):
raise Http404
except ValueError:
raise Http404
return date
def isWeekCommencingDate(value):
"""
Validates that a date falls on the first day of the week.
"""
if not is_week_commencing_date(value):
raise ValidationError("Enter a date which falls on the first day of the week.")