def __init__(self, name, blob):
self.name = name
# check if blob is just content or the database model class
if isinstance(blob, BlobPropertyFileModel):
self.blob = blob
else:
self.blob = BlobPropertyFileModel(content=blob)
class BlobPropertyFile(File):
def __init__(self, name, blob):
self.name = name
# check if blob is just content or the database model class
if isinstance(blob, BlobPropertyFileModel):
self.blob = blob
else:
self.blob = BlobPropertyFileModel(content=blob)
def read(self):
return self.blob.content
def write(self, content):
self.blob.content = content
self.blob.put()
def close(self):
raise NotImplementedError()
def _save(self, name, content):
path = self.path(name)
blob = BlobPropertyFileModel(key_name=path)
blob.content = content.read()
blob.put()
return path
def delete(self, name):
BlobPropertyFileModel.get_by_key_name(self.path(name)).delete()
def _open(self, name, mode='rb'):
blob = BlobPropertyFileModel.get_by_key_name(self.path(name))
if blob:
return BlobPropertyFile(self.path(name), blob)
else:
return None
def exists(self, name):
if BlobPropertyFileModel.get_by_key_name(self.path(name)):
return True
else:
return False
