Hello,
I'm trying to write a custom validator that will use localized error messages.
As I found, attempt to use lazystring in a validator's message class variable
leads to the following error:
File "controllers.py", line 88, in ?
class EmailValidator(validators.Email):
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\declarative.py",
line 84, in __new__
cls.__classinit__(cls, new_attrs)
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\api.py",
line 115, in __classinit__
cls._initialize_docstring()
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\api.py",
line 188, in _initialize_docstring
default = re.sub(r'(%\(.*?\)[rsifcx])', r'``\1``', default)
File "C:\Python24\lib\sre.py", line 142, in sub
return _compile(pattern, 0).sub(repl, string, count)
TypeError: Error when calling the metaclass bases expected string or buffer
OTOH, the following kind of work:
def localize_formencode_messages(f):
from turbogears.i18n import gettext
def wrapper(self, msgName, state, **kw):
if self._messages.has_key(msgName):
message = self._messages.get(msgName)
message = gettext(message)
return message % kw
return f(self, msgName, state, **kw)
return wrapper
validators.Validator.message = \
localize_formencode_messages(validators.Validator.message)
It works unless there is compound error. In this case UnicodeEncodeError pops
up when formencode tries to reformat the exception:
File "d:\projects\3rd-party\turbogears\turbogears\controllers.py", line 125, in
validate
kw = validators.to_python(kw)
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\api.py",
line 304, in to_python
value = tp(value, state)
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\schema.py",
line 172, in _to_python
raise Invalid(
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\schema.py",
line 296, in format_compound_error
return ('%s\n' % (' '*indent)).join(
File
"C:\Python24\Lib\site-packages\FormEncode-0.4-py2.4.egg\formencode\schema.py",
line 292, in format_compound_error
return str(v)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-6:
ordinal not in range(128)
Is there a solution, preferably one that doesn't involve patching formencode?
