I made a FormValidator subclass called DatefieldsValidator (below) ,
which validates a day/month/year field
how should I push errors from there into the template ? can helpers
be used?
---
class DatefieldsValidator(formencode.validators.FormValidator):
"""
Checks if a date is valid
DatefieldsValidator('birth_year','birth_month','birth_day',
require_years_ago=13)
"""
# tells UniqueNameValidator where to unpack the args passed to
__init__
__unpackargs__ = ('*','field_names')
field_names = None
require_years_ago= None
messages = {
'date_invalid':"The date you submitted (%(date_string)s) is
not a real date.",
'date_too_late':"The date you submitted (%(date_string)s) is
not before the cutoff date (%(latest_date_string)s).",
}
def validate_python(self, field_dict, state):
print self.__dict__
date_string= "%04d-%02d-%02d" % (
int(field_dict[self.field_names[0]]),
int(field_dict[self.field_names[1]]),
int(field_dict[self.field_names[2]]),
)
date= None
try:
date= time.strptime(date_string,"%Y-%m-%d")
except:
msg = self.message('date_invalid', state, date_string=
date_string)
raise formencode.api.Invalid(msg, field_dict, state,
error_dict={'form':msg})
if self.require_years_ago:
latest_date_string= datetime.date.today() -
relativedelta(years= self.require_years_ago)
latest_date= time.strptime( "%s"%latest_date_string, "%Y-
%m-%d")
timedelta= time.mktime(latest_date) - time.mktime(date)
if timedelta < 0:
msg = self.message('date_too_late', state,
date_string= date_string, latest_date_string= latest_date_string)
raise formencode.api.Invalid(msg, field_dict, state,
error_dict={'form':msg})
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