forms.py
63 lines
| 3.0 KiB
| text/x-python
|
PythonLexer
Marcin Kuzminski
|
r0 | """ this is forms validation classes | ||
http://formencode.org/module-formencode.validators.html | ||||
for list off all availible validators | ||||
we can create our own validators | ||||
The table below outlines the options which can be used in a schema in addition to the validators themselves | ||||
pre_validators [] These validators will be applied before the schema | ||||
chained_validators [] These validators will be applied after the schema | ||||
allow_extra_fields False If True, then it is not an error when keys that aren't associated with a validator are present | ||||
filter_extra_fields False If True, then keys that aren't associated with a validator are removed | ||||
if_key_missing NoDefault If this is given, then any keys that aren't available but are expected will be replaced with this value (and then validated). This does not override a present .if_missing attribute on validators. NoDefault is a special FormEncode class to mean that no default values has been specified and therefore missing keys shouldn't take a default value. | ||||
ignore_key_missing False If True, then missing keys will be missing in the result, if the validator doesn't have .if_missing on it already | ||||
<name> = formencode.validators.<name of validator> | ||||
<name> must equal form name | ||||
list=[1,2,3,4,5] | ||||
for select use formencode.All(OneOf(list), Int()) | ||||
""" | ||||
import formencode | ||||
from formencode.validators import UnicodeString, OneOf, Int, Number, Regex | ||||
from pylons.i18n.translation import _ | ||||
from webhelpers.pylonslib.secure_form import authentication_token | ||||
class ValidAuthToken(formencode.validators.FancyValidator): | ||||
messages = {'invalid_token':_('Token mismatch')} | ||||
def validate_python(self, value, state): | ||||
if value != authentication_token(): | ||||
raise formencode.Invalid(self.message('invalid_token', state, search_number = value), value, state) | ||||
class WireTransferForm(object): | ||||
''' | ||||
A factory wrapper class. It might return the instance of class for a validation, but also it can | ||||
return the list for select fields values. | ||||
@param ret_type: type to return defaut: 'class' | ||||
''' | ||||
#class attributes here | ||||
#it might be fetched from db,from models and so on | ||||
recipients_list = [ | ||||
(1, 'a'), | ||||
(2, 'b') | ||||
] | ||||
def _form(self): | ||||
class _WireTransferForm(formencode.Schema): | ||||
allow_extra_fields = True | ||||
_authentication_token = ValidAuthToken() | ||||
account_number = Regex(r'[0-9]{26}', not_empty = True, messages = { | ||||
'invalid': _("Account number is invalid, it must be 26 digits")}) | ||||
title = UnicodeString(not_empty = True, min = 3, strip = True) | ||||
recipient = formencode.All(OneOf([i[0] for i in WireTransferForm.recipients_list], | ||||
testValueList = True, hideList = True), Int()) | ||||
recipient_address = UnicodeString(not_empty = True, strip = True) | ||||
amount = Number(not_empty = True, min = 1) | ||||
return _WireTransferForm() | ||||