コード例 #1
0
 def _to_python(self, value, state):
     """Parse a string and return a datetime object."""
     if value and isinstance(value, datetime):
         return value
     else:
         try:
             format = self.format
             if callable(format):
                 format = format()
             tpl = time.strptime(value, format)
         except ValueError:
             raise Invalid(self.message('badFormat', state), value, state)
         # shoudn't use time.mktime() because it can give OverflowError,
         # depending on the date (e.g. pre 1970) and underlying C library
         return datetime(year=tpl.tm_year, month=tpl.tm_mon, day=tpl.tm_mday,
                 hour=tpl.tm_hour, minute=tpl.tm_min, second=tpl.tm_sec)
コード例 #2
0
 def _to_python(self, value, state):
     """Parse a string and return a datetime object."""
     if value and isinstance(value, datetime):
         return value
     else:
         try:
             format = self.format
             if callable(format):
                 format = format()
             tpl = time.strptime(value, format)
         except ValueError:
             raise Invalid(self.message('badFormat', state), value, state)
         # shoudn't use time.mktime() because it can give OverflowError,
         # depending on the date (e.g. pre 1970) and underlying C library
         return datetime(year=tpl.tm_year, month=tpl.tm_mon, day=tpl.tm_mday,
                 hour=tpl.tm_hour, minute=tpl.tm_min, second=tpl.tm_sec)
コード例 #3
0
 def _from_python(self, value, state):
     """Return a string representation of a datetime object."""
     if not value:
         return None
     elif isinstance(value, datetime):
         # Python stdlib can only handle dates with year greater than 1900
         format = self.format
         if callable(format):
             format = format()
         if format is None:
             format = "%Y-%m-%d"
         if value.year <= 1900:
             return strftime_before1900(value, format)
         else:
             return value.strftime(format)
     else:
         return value
コード例 #4
0
 def _from_python(self, value, state):
     """Return a string representation of a datetime object."""
     if not value:
         return None
     elif isinstance(value, datetime):
         # Python stdlib can only handle dates with year greater than 1900
         format = self.format
         if callable(format):
             format = format()
         if format is None:
             format = "%Y-%m-%d"
         if value.year <= 1900:
             return strftime_before1900(value, format)
         else:
             return value.strftime(format)
     else:
         return value