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try:
from Products.validation.interfaces.IValidator import IValidator
except ImportError:
import sys, os
sys.path.insert(0, os.path.join(os.path.dirname(__file__), os.pardir))
from interfaces.IValidator import IValidator
del sys, os
_marker = []
try:
True
except NameError:
True=1
False=0
class EmptyValidator:
__implements__ = IValidator
def __init__(self, name, title='', description='', showError=True):
self.name = name
self.title = title or name
self.description = description
self.showError = showError
def __call__(self, value, *args, **kwargs):
isEmpty = kwargs.get('isEmpty', False)
instance = kwargs.get('instance', None)
field = kwargs.get('field', None)
# XXX: This is a temporary fix. Need to be fixed right for AT 2.0
# content_edit / BaseObject.processForm() calls
# widget.process_form a second time!
if instance and field:
widget = field.widget
request = getattr(instance, 'REQUEST', None)
if request:
form = request.form
result = widget.process_form(instance, field, form,
empty_marker=_marker,
emptyReturnsMarker=True)
if result is _marker or result is None:
isEmpty = True
if isEmpty:
return True
elif value == '' or value is None:
return True
else:
if getattr(self, 'showError', False):
return ("Validation failed(%(name)s): '%(value)s' is not empty." %
{ 'name' : self.name, 'value': value})
else:
return False
validatorList = [
EmptyValidator('isEmpty', title='', description=''),
EmptyValidator('isEmptyNoError', title='', description='', showError=False),
]
__all__ = ('validatorList', )
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