def __call__(self, v):
"""
:param v: is a number enclosed with string
:return: Decimal number
"""
precision, scale, decimal_num = self._get_precision_scale(v)
if self.precision is not None and self.scale is not None and\
precision != self.precision and scale != self.scale:
raise Invalid(
self.msg or
"Precision must be equal to %s, and Scale must be equal to %s"
% (self.precision, self.scale))
else:
if self.precision is not None and precision != self.precision:
raise Invalid(
self.msg
or "Precision must be equal to %s" % self.precision)
if self.scale is not None and scale != self.scale:
raise Invalid(self.msg
or "Scale must be equal to %s" % self.scale)
if self.yield_decimal:
return decimal_num
else:
return v
def __call__(self, v):
if not isinstance(v, (list, tuple)):
raise Invalid(self.msg or 'Value {} is not sequence!'.format(v))
if len(v) != len(self._schemas):
raise Invalid(self.msg or 'List lengths differ, value:{} != target:{}'.format(len(v), len(self._schemas)))
consumed = set()
missing = []
for index, value in enumerate(v):
found = False
for i, s in enumerate(self._schemas):
if i in consumed:
continue
try:
s(value)
except Invalid:
pass
else:
found = True
consumed.add(i)
break
if not found:
missing.append((index, value))
if len(missing) == 1:
el = missing[0]
raise Invalid(self.msg or 'Element #{} ({}) is not valid against any validator'.format(el[0], el[1]))
elif missing:
raise MultipleInvalid([Invalid(self.msg or 'Element #{} ({}) is not valid against any validator'.format(
el[0], el[1])) for el in missing])
return v
class Any(CompoundValidator):
"""
Combines multiple validators together, raising an exception only if they
all fail (i.e. validation succeeds if any validator passes).
"""
def __init__(self, *args, **kw):
self.validators = args
self.messages = kw.get('messages')
def __call__(self, v):
exceptions = []
for validator in self.validators:
try:
validator(v)
except Invalid, e:
exceptions.append(Invalid(e.message, e.exceptions, validator))
else:
return
message = '; '.join(e.message for e in exceptions)
_messages = {
'please-fix': "Please fix any of: %(errors)s",
}
if self.messages:
_messages.update(messages)
raise Invalid(_messages['please-fix'] % {'errors': message},
exceptions, self)
def __call__(self, v):
exceptions = []
for validator in self.validators:
try:
validator(v)
except Invalid, e:
exceptions.append(Invalid(e.message, e.exceptions, validator))
def __call__(self, v):
if v != self.target:
raise Invalid(
self.msg
or 'Values are not equal: value:{} != target:{}'.format(
v, self.target))
return v
def __call__(self, v):
try:
validate.has_length(v,
min=self.min,
max=self.max,
messages=self.messages)
except Invalid, e:
raise Invalid(e.message, validator=self)
def __call__(self, v):
try:
validate.is_in_range(v,
min=self.min,
max=self.max,
messages=self.messages)
except Invalid, e:
raise Invalid(e.message, validator=self)
def __call__(self, v):
try:
validate.is_url(v,
full=self.full,
absolute=self.absolute,
relative=self.relative,
messages=self.messages)
except Invalid, e:
raise Invalid(e.message, validator=self)
def _get_precision_scale(self, number):
"""
:param number:
:return: tuple(precision, scale, decimal_number)
"""
try:
decimal_num = Decimal(number)
except InvalidOperation:
raise Invalid(self.msg or 'Value must be a number enclosed with string')
return (len(decimal_num.as_tuple().digits), -(decimal_num.as_tuple().exponent), decimal_num)
def __call__(self, v):
try:
set_v = set(v)
except TypeError as e:
raise TypeInvalid(self.msg
or 'contains unhashable elements: {0}'.format(e))
if len(set_v) != len(v):
seen = set()
dupes = list(set(x for x in v if x in seen or seen.add(x)))
raise Invalid(self.msg
or 'contains duplicate items: {0}'.format(dupes))
return v
class All(CompoundValidator):
""" Combines multiple validators together, raising an exception unless they all pass """
def __init__(self, *args):
self.validators = args
def __call__(self, v):
exceptions = []
for validator in self.validators:
try:
validator(v)
except Invalid, e:
exceptions.append(Invalid(e.message, e.exceptions, validator))
if len(exceptions):
message = '; '.join(e.message for e in exceptions)
raise Invalid(message, exceptions, self)
def __call__(self, v):
try:
validate.is_domain_name(v, messages=self.messages)
except Invalid, e:
raise Invalid(e.message, validator=self)
def __call__(self, v):
try:
validate.is_plaintext(v, extra=self.extra, messages=self.messages)
except Invalid, e:
raise Invalid(e.message, validator=self)
def __call__(self, v):
try:
validate.is_string(v)
except Invalid, e:
raise Invalid(e.message, validator=self)
def __call__(self, v):
try:
validate.is_required(v, messages=self.messages)
except Invalid, e:
raise Invalid(e.message, validator=self)
def __call__(self, v):
if v is not None and not isinstance(v, self.kind):
raise Invalid(self.msg
or "%s must be None or of type %s" % (v, self.kind))
return v
def __call__(self, v):
try:
validate.is_one_of(v, self.set_of_values, messages=self.messages)
except Invalid, e:
raise Invalid(e.message, validator=self)
def __call__(self, v):
try:
validate.is_equal(v, self.compared_to, messages=self.messages)
except Invalid, e:
raise Invalid(e.message, validator=self)
