def __init__(self, fields, form):
self.interfaces = []
for field in fields:
if IField.providedBy(field):
if field.interface not in self.interfaces:
self.interfaces.append(field.interface)
self.form = form
def __init__(self, title,
valueField=None,
minLength=0,
maxLength=None,
**options):
super(CollectionField, self).__init__(title, **options)
self._valueField = IField(valueField, None)
self.minLength = minLength
self.maxLength = maxLength
class CollectionField(BaseField):
"""A collection field.
"""
grok.implements(ICollectionField)
collectionType = list
allowAdding = True
allowRemove = True
inlineValidation = False
def __init__(self, title,
valueField=None,
minLength=0,
maxLength=None,
**options):
super(CollectionField, self).__init__(title, **options)
self._valueField = IField(valueField, None)
self.minLength = minLength
self.maxLength = maxLength
@property
def valueField(self):
return self._valueField
def validate(self, value, form):
error = super(CollectionField, self).validate(value, form)
if error is not None:
return error
if not isinstance(value, Marker):
if not isinstance(value, self.collectionType):
return _(u'Object is of wrong type.')
if self.minLength and len(value) < self.minLength:
return _(u"There are too few items.")
if self.maxLength and len(value) > self.maxLength:
return _(u"There are too many items.")
for item in value:
error = self._valueField.validate(item, form)
if error is not None:
return error
return None
def isEmpty(self, value):
return value is NO_VALUE or not len(value)
def __init__(self, field):
super(CollectionSchemaField, self).__init__(field)
self.__value_field = IField(self._field.value_type)