def listen_input(self, parser, tag, attrs):
get_attr = parser.get_attr
name = get_attr(attrs, 'name')
if not name:
# @@: should warn if you try to validate unnamed fields
return
v = compound.All(validators.Identity())
add_to_end = None
# for checkboxes, we must set if_missing = False
if tag.lower() == "input":
type_attr = get_attr(attrs, "type").lower().strip()
if type_attr == "submit":
v.validators.append(validators.Bool())
elif type_attr == "checkbox":
v.validators.append(validators.Wrapper(to_python = force_list))
elif type_attr == "file":
add_to_end = validators.FieldStorageUploadConverter()
message = get_attr(attrs, 'form:message')
required = to_bool(get_attr(attrs, 'form:required', 'false'))
if required:
v.validators.append(
validators.NotEmpty(
messages=get_messages(validators.NotEmpty, message)))
else:
v.validators[0].if_missing = False
if add_to_end:
v.validators.append(add_to_end)
v_type = get_attr(attrs, 'form:validate', None)
if v_type:
pos = v_type.find(':')
if pos != -1:
# @@: should parse args
args = (v_type[pos+1:],)
v_type = v_type[:pos]
else:
args = ()
v_type = v_type.lower()
v_class = self.validators.get(v_type)
if not v_class:
raise ValueError("Invalid validation type: %r" % v_type)
kw_args={'messages': get_messages(v_class, message)}
v_inst = v_class(
*args, **kw_args)
v.validators.append(v_inst)
self._schema.add_field(name, v)
def __init__(self,
main_form,
type,
name,
label=None,
required=False,
nuci_path=None,
nuci_preproc=None,
validators=None,
hint="",
multifield=False,
**kwargs):
"""
:param main_form: parent form of this field
:type main_form: ForisForm
:param type: type of field
:param name: field name (rendered also as HTML name attribute)
:param label: display name of field
:param required: True if field is mandatory
:param nuci_path: path in Nuci get response
:param nuci_preproc: function to process raw YinElement instance, returns field value
:type nuci_preproc: callable
:param validators: validator or list of validators
:type validators: validator or list
:param hint: short descriptive text explaining the purpose of the field
:param multifield: whether multiple values can be returned
:param kwargs: passed to Input constructor
"""
super(Field, self).__init__(name)
#
self.type = type
self.name = name
self.nuci_path = nuci_path
self.nuci_preproc = nuci_preproc
if validators and not isinstance(validators, list):
validators = [validators]
self.validators = validators or []
if not all(
map(lambda x: isinstance(x, validators_module.Validator),
self.validators)):
raise TypeError(
"Argument 'validators' must be Validator instance or list of them."
)
self._kwargs = kwargs
self.required = required
if self.required:
self.validators.append(validators_module.NotEmpty())
self._kwargs["required"] = self.required
self._kwargs["description"] = label
self.requirements = {}
self.hint = hint
self.multifield = multifield
default = kwargs.pop("default", [] if self.multifield else None)
if issubclass(self.type, Checkbox):
self._kwargs["value"] = "1" # we need a non-empty value here
self._kwargs["checked"] = False if default == "0" else bool(
default)
# set defaults for main form
self._main_form = main_form
self._main_form.defaults.setdefault(name, default)
# cache for rendered field - remove after finishing TODO #2793
self.__field_cache = None
def test_empty(self):
try:
validators.NotEmpty('', ['node'])
self.assertTrue(False)
except ValueError as ex:
self.assertEqual('node: Cannot be empty', ex.message)
def test_not_empty(self):
value = 'abc'
actual = validators.NotEmpty(value, [])
self.assertEqual(value, actual)
def test_none(self):
try:
validators.NotEmpty(None, [])
self.assertTrue(False)
except ValueError as ex:
self.assertEqual('Cannot be null', ex.message)
