def serialize(self, node, appstruct):
if appstruct is colander.null:
return colander.null
if type(appstruct) is datetime.date: # cant use isinstance; dt subs date
appstruct = datetime.datetime.combine(appstruct, datetime.time())
if not isinstance(appstruct, datetime.datetime):
raise colander.Invalid(node,
CMF("'${val}' is not valid as date and time",
mapping={'val':appstruct})
)
dt = get_users_dt_helper()
return dt.utc_to_tz(appstruct).strftime('%Y-%m-%d %H:%M')
def deserialize(self, node, cstruct):
if not cstruct:
return colander.null
dt = get_users_dt_helper()
try:
result = datetime.datetime.strptime(cstruct, "%Y-%m-%dT%H:%M")
# python's datetime doesn't deal correctly with DST, so we have
# to use the pytz localize function instead
result = result.replace(tzinfo=None)
result = dt.timezone.localize(result)
except (iso8601.ParseError, TypeError), e:
try:
year, month, day = map(int, cstruct.split('-', 2))
result = datetime.datetime(year, month, day,
tzinfo=self.default_tzinfo)
except Exception, e:
raise colander.Invalid(node, CMF(self.err_template,
mapping={'val':cstruct, 'err':e}))
def user_dt(self):
if not self.userid:
return None
return get_users_dt_helper(request = self.request)
