class DateForm(ModelForm):
class Meta:
model = Date
exclude = ('year', 'month', 'day', 'year_uncertain', 'month_uncertain',
'day_uncertain')
date = CharField(max_length=13, required=False,
help_text='Enter date as YYYY-MM-DD. A ? can be used in '
'each part to indicate uncertainty.')
def __init__(self, *args, **kwargs):
super(DateForm, self).__init__(*args, **kwargs)
if self.instance:
self.initial['date'] = unicode(self.instance)
def clean_date(self):
date = self.cleaned_data['date']
if not date:
if self.instance:
self.instance.set(year='', month='', day='',
year_uncertain=False,
month_uncertain=False,
day_uncertain=False,
empty=True)
return None
dparts = date.split('-')
verror = ValidationError(_('Date given in a wrong format'))
#We accept entering only year or only year and month.
if len(dparts) < 1 or len(dparts) > 3:
raise verror
if not self.instance:
self.instance = Date()
month = day = ''
month_uncertain = day_uncertain = None
#The general format is YYYY-MM-DD but each part can end with '?'
if not (4 <= len(dparts[0]) <= 5):
raise verror
year = dparts[0][:4]
year_uncertain = dparts[0].endswith('?')
if len(dparts) > 1:
if not (1 <= len(dparts[1]) <= 3):
raise verror
month = dparts[1][:2]
month_uncertain = dparts[1].endswith('?')
if len(dparts) > 2:
if not (1 <= len(dparts[2]) <= 3):
raise verror
day = dparts[2][:2]
day_uncertain = dparts[2].endswith('?')
self.instance.set(year=year, month=month, day=day,
year_uncertain=year_uncertain,
month_uncertain=month_uncertain,
day_uncertain=day_uncertain)
return date
def clean_date(self):
date = self.cleaned_data['date']
if not date:
if self.instance:
self.instance.set(year='', month='', day='',
year_uncertain=False,
month_uncertain=False,
day_uncertain=False,
empty=True)
return None
dparts = date.split('-')
verror = ValidationError(_('Date given in a wrong format'))
#We accept entering only year or only year and month.
if len(dparts) < 1 or len(dparts) > 3:
raise verror
if not self.instance:
self.instance = Date()
month = day = ''
month_uncertain = day_uncertain = None
#The general format is YYYY-MM-DD but each part can end with '?'
if not (4 <= len(dparts[0]) <= 5):
raise verror
year = dparts[0][:4]
year_uncertain = dparts[0].endswith('?')
if len(dparts) > 1:
if not (1 <= len(dparts[1]) <= 3):
raise verror
month = dparts[1][:2]
month_uncertain = dparts[1].endswith('?')
if len(dparts) > 2:
if not (1 <= len(dparts[2]) <= 3):
raise verror
day = dparts[2][:2]
day_uncertain = dparts[2].endswith('?')
self.instance.set(year=year, month=month, day=day,
year_uncertain=year_uncertain,
month_uncertain=month_uncertain,
day_uncertain=day_uncertain)
return date
