def post(self, parent_info): # inputのname="file"と対応している file_blob = self.get_uploads('file')[0] serve_url = images.get_serving_url(file_blob.key()) image_obj = ImageBlob(parent=parent_info.key) image_obj.populate( file_name=file_blob.filename, content_type=file_blob.content_type, file_size=file_blob.size, image_url=serve_url, proprietor=parent_info.nickname ) image_obj.put() return self.redirect('/view_image/%s' % file_blob.key())