def _set_data(cls, target, value, oldvalue, initiator):
# Ref #384 : enforce this method
if isinstance(value, (cStringIO.InputType, file)):
value.seek(0)
value = value.read()
if isinstance(value, bytes):
value = _to_fieldstorage(
fp=cStringIO.StringIO(value),
filename=target.name,
size=len(value)
)
newvalue = _SQLAMutationTracker._field_set(
target,
value,
oldvalue,
initiator
)
if newvalue is None:
return
target.filename = newvalue.filename
target.mimetype = detect_file_headers(newvalue.filename)
target.size = newvalue.file.content_length
return newvalue
def _to_fieldstorage(fp, filename, size, **_kwds):
""" Build a :class:`cgi.FieldStorage` instance.
Deform's :class:`FileUploadWidget` returns a dict, but
:class:`depot.fields.sqlalchemy.UploadedFileField` likes
:class:`cgi.FieldStorage` objects
"""
f = cgi.FieldStorage()
f.file = fp
f.filename = filename
f.type = detect_file_headers(filename)
f.length = size
return f
def _to_fieldstorage(fp, filename, size, **_kwds):
""" Build a :class:`cgi.FieldStorage` instance.
Deform's :class:`FileUploadWidget` returns a dict, but
:class:`depot.fields.sqlalchemy.UploadedFileField` likes
:class:`cgi.FieldStorage` objects
"""
f = cgi.FieldStorage()
f.file = fp
f.filename = filename
f.type = detect_file_headers(filename)
f.length = size
return f
def _set_data(cls, target, value, oldvalue, initiator):
if isinstance(value, bytes):
value = _to_fieldstorage(fp=StringIO(value),
filename=target.filename,
size=len(value))
newvalue = _SQLAMutationTracker._field_set(
target, value, oldvalue, initiator)
if newvalue is None:
return
target.filename = newvalue.filename
target.mimetype = detect_file_headers(newvalue.filename)
target.size = newvalue.file.content_length
return newvalue
def _set_data(cls, target, value, oldvalue, initiator):
# Ref #384 : enforce this method
if isinstance(value, (cStringIO.InputType, file)):
value.seek(0)
value = value.read()
if isinstance(value, bytes):
value = _to_fieldstorage(fp=cStringIO.StringIO(value),
filename=target.name,
size=len(value))
newvalue = _SQLAMutationTracker._field_set(target, value, oldvalue,
initiator)
if newvalue is None:
return
target.filename = newvalue.filename
target.mimetype = detect_file_headers(newvalue.filename)
target.size = newvalue.file.content_length
return newvalue