def register(self, validator):
if not IValidator.isImplementedBy(validator):
IValidator.isImplementedBy(validator)
raise FalseValidatorError, validator
name = validator.name
# The following code prevents refreshing
##if self._validator.has_key(name):
## raise AlreadyRegisteredValidatorError, name
self._validator[name] = validator
def unregister(self, name_or_validator):
if type(name_or_validator) is StringType:
name = name_or_validator
elif IValidator.isImplementedBy(name_or_validator):
name = name_or_validator.name
if self._validator.has_key(name):
del self._validator[name]
def validatorFor(self, name_or_validator):
if type(name_or_validator) in StringTypes:
try:
return self._validator[name_or_validator]
except KeyError:
raise UnknowValidatorError, name_or_validator
elif IValidator.isImplementedBy(name_or_validator):
return name_or_validator
else:
raise FalseValidatorError, name_or_validator
def _subfieldValidationLayer(self, subfield):
"""
for the individual subfields
"""
chainname = 'Validator_%s_%s' % (self.getName(), subfield)
current_validators = self.subfield_validators.get(subfield, ())
if type(current_validators) is DictType:
raise NotImplementedError, 'Please use the new syntax with validation chains'
elif IValidationChain.isImplementedBy(current_validators):
validators = current_validators
elif IValidator.isImplementedBy(current_validators):
validators = ValidationChain(chainname, validators=current_validators)
elif type(current_validators) in (TupleType, ListType, StringType):
if len(current_validators):
# got a non empty list or string - create a chain
try:
validators = ValidationChain(chainname, validators=current_validators)
except (UnknowValidatorError, FalseValidatorError), msg:
log("WARNING: Disabling validation for %s/%s: %s" % (self.getName(), subfield, msg))
validators = ()
else:
validators = ()