def evolve(root, registry):
logger.info('Running substanced evolve step 7: reset all blob mimetypes '
'to nominal USE_MAGIC value')
if magic:
objectmap = find_objectmap(root)
if objectmap is not None:
oids = objectmap.get_extent(get_dotted_name(File))
if oids is not None:
for oid in oids:
f = objectmap.object_for(oid)
try:
if f.get_size():
blob = f.blob
fp = blob.open('r')
for chunk in chunks(fp):
m = magic.Magic(mime=True)
mimetype = m.from_buffer(chunk)
f.mimetype = mimetype
break
except POSKeyError:
logger.error(
'Missing blob for file %s, overwriting with '
'empty blob' % resource_path(f))
f.blob = Blob()
f.mimetype = 'application/octet-stream'
def evolve(root):
logger.info(
'Running substanced evolve step 7: reset all blob mimetypes '
'to nominal USE_MAGIC value'
)
if magic:
objectmap = find_objectmap(root)
if objectmap is not None:
oids = objectmap.get_extent(get_dotted_name(File))
if oids is not None:
for oid in oids:
f = objectmap.object_for(oid)
try:
if f.get_size():
blob = f.blob
fp = blob.open('r')
for chunk in chunks(fp):
m = magic.Magic(mime=True)
mimetype = m.from_buffer(chunk)
f.mimetype = mimetype
break
except POSKeyError:
logger.error(
'Missing blob for file %s, overwriting with '
'empty blob' % resource_path(f)
)
f.blob = Blob()
f.mimetype = 'application/octet-stream'
def upload(self, stream):
if not stream:
stream = StringIO.StringIO()
fp = self.blob.open('w')
size = 0
for chunk in chunks(stream):
size += len(chunk)
fp.write(chunk)
fp.close()
self.size = size
