def __init__(self, *args, **kwargs):
try:
self.multiple = kwargs.pop("multiple")
except KeyError:
self.multiple = False
self.blob_attr = kwargs.pop("blob_attr", self.__class__.blob_attr)
allow_delete = kwargs.pop("allow_delete", None)
validators = list(kwargs.get("validators", []))
self.upload_handles = []
self.delete_files_index = []
self._has_uploads = False
if allow_delete is not None:
if any(
isinstance(v, DataRequired if allow_delete else Optional)
for v in validators
):
raise ValueError(
"Field validators are conflicting with `allow_delete`,"
"validators={!r}, allow_delete={!r}".format(
validators, allow_delete
)
)
if not allow_delete:
validators.append(DataRequired())
kwargs["validators"] = validators
BaseFileField.__init__(self, *args, **kwargs)
def __call__(self, **kwargs):
if "multiple" not in kwargs and self.multiple:
kwargs["multiple"] = "multiple"
return BaseFileField.__call__(self, **kwargs)
def __call__(self, **kwargs):
if 'multiple' not in kwargs and self.multiple:
kwargs['multiple'] = 'multiple'
return BaseFileField.__call__(self, **kwargs)
