def _process_form_value_with_suffix(self, form, suffix=u''):
""" add suffix parameter & use it """
posted = form._cw.form
if self.input_name(form, u'__detach') in posted:
# drop current file value on explictily asked to detach
return None
try:
value = posted[self.input_name(form, suffix)]
except KeyError:
# raise UnmodifiedField instead of returning None, since the later
# will try to remove already attached file if any
raise ff.UnmodifiedField()
# value is a 2-uple (filename, stream)
try:
filename, stream = value
except ValueError:
raise ff.UnmodifiedField()
# XXX avoid in memory loading of posted files. Requires Binary handling changes...
value = Binary(stream.read())
if not value.getvalue(): # usually an unexistant file
value = None
else:
# set filename on the Binary instance, may be used later in hooks
value.filename = ff.normalize_filename(filename)
return value
def _process_form_value(self, form):
posted = form._cw.form
if self.input_name(form, u'__detach') in posted:
# drop current file value on explictily asked to detach
return None
try:
value = posted[self.input_name(form)]
except KeyError:
# raise UnmodifiedField instead of returning None, since the later
# will try to remove already attached file if any
raise UnmodifiedField()
# value is a 2-uple (filename, stream) or a list of such
# tuples (multiple files)
try:
if isinstance(value, list):
value = value[0]
form.warning('mutiple files provided, however '
'only the first will be picked')
filename, stream = value
except ValueError:
raise UnmodifiedField()
# XXX avoid in memory loading of posted files. Requires Binary handling changes...
value = Binary(stream.read())
if not value.getvalue(): # usually an unexistant file
value = None
else:
# set filename on the Binary instance, may be used later in hooks
value.filename = normalize_filename(filename)
return value
def test_npts_import(self):
with self.admin_access.repo_cnx() as cnx:
orig = self._create_npts(cnx)
cnx.commit()
for ext, fmt in (('.csv', 'text/csv'),):
if not is_supported(ext):
continue
fname = self.datapath('npts' + ext)
blob = Binary(open(fname, 'rb').read())
blob.filename = fname
ts = cnx.create_entity('NonPeriodicTimeSeries', data=blob)
self.assertEqual(orig.timestamped_array(), ts.timestamped_array())
def resize(self, size):
size = tuple(int(s) for s in size.split('x'))
idownloadable = self.entity.cw_adapt_to('IDownloadable')
ctype = idownloadable.download_content_type()
fmt = ctype and ctype.split('/', 1)[1] or None
if fmt is None:
self.error('unable to resize')
raise UnResizeable
data = idownloadable.download_data()
pilimg = pilopen(Binary(data))
pilimg.thumbnail(size, ANTIALIAS)
stream = Binary()
pilimg.save(stream, fmt)
stream.seek(0)
stream.filename = idownloadable.download_file_name()
return stream
def test_ts_import(self):
with self.admin_access.repo_cnx() as cnx:
orig = self._create_ts(cnx, granularity=u'daily')
cnx.commit()
for ext, fmt in (('.xls', 'application/vnd.ms-excel'),
('.xlsx', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'),
('.csv', 'text/csv')):
if not is_supported(ext):
continue
fname = self.datapath('ts' + ext)
blob = Binary(open(fname, 'rb').read())
blob.filename = fname
ts = cnx.create_entity('TimeSeries',
granularity=u'daily',
start_date=datetime(2009, 10, 1),
data=blob)
self.assertEqual(orig.timestamped_array(), ts.timestamped_array())
def thumbnail(self, shadow=False, size=None):
if size is None:
size = self._cw.vreg.config['image-thumb-size']
size = tuple(int(s) for s in size.split('x'))
idownloadable = self.entity.cw_adapt_to('IDownloadable')
data = idownloadable.download_data()
try:
pilimg = pilopen(Binary(data))
except IOError:
raise UnResizeable
if shadow:
self.warning('[1.15.0] the shadow parameter is now unused '
'and you should use css rules to lay shadows out',
DeprecationWarning)
pilimg.thumbnail(size, ANTIALIAS)
stream = Binary()
pilimg.save(stream, 'png')
stream.seek(0)
ithumbnail = self.entity.cw_adapt_to('IThumbnail')
stream.filename = ithumbnail.thumbnail_file_name()
return stream
def generate_bytes(self, entity, attrname, index, format=None):
fakefile = Binary(("%s%s" % (attrname, index)).encode('ascii'))
fakefile.filename = u"file_%s" % attrname
return fakefile