old_contents: import tornado
  import time
  from bson.json_util import dumps
  from tornado.options import options
  
  
  class FilesServiceHandler(tornado.web.RequestHandler):
      def initialize(self, logger, mongodb):
          self.logger = logger
          self.mongodb = mongodb
  
      @tornado.web.asynchronous
      @tornado.gen.coroutine
      def post(self):
          self.logger.info('Request to file upload')
  
          for item in self.request.files.values():
              file_info = item[0]
  
              self.logger.info('File uploaded: %s with mime type %s' % (file_info['filename'], file_info['content_type']))
              name = '%s-%s' % (time.time(), file_info['filename'])
  
              with open('%s/%s' % (options.files_dir, name), 'w') as f:
                  f.write(file_info['body'])
  
              self.logger.info('File saved at %s' % name)
  
          self.write('done')
  
new_contents: import tornado
  import time
  from bson.json_util import dumps
  from tornado.options import options
  
  
  class FilesServiceHandler(tornado.web.RequestHandler):
      def initialize(self, logger, mongodb):
          self.logger = logger
          self.mongodb = mongodb[options.db_name]['Files']
  
      @tornado.web.asynchronous
      @tornado.gen.coroutine
      def post(self):
          self.logger.info('Request to file upload')
  
          result = []
  
          for item in self.request.files.values():
              for file_info in item:
                  timestamp = time.time()
  
                  data = {
                      'name': '%s-%s' % (timestamp, file_info['filename']),
                      'location': 'TBD',
                      'context': 'context',
                      'realName': file_info['filename'],
                      'mimeType': file_info['content_type'],
                      'deleted': False,
                      'timestamp': timestamp,
                      'restrictions': {
                          'quota': False,
                          'session': False
                      }
                  }
  
                  self.logger.info('File uploaded: %s with mime type %s' % (data['realName'], data['mimeType']))
  
                  with open('%s/%s' % (options.files_dir, data['name']), 'w') as f:
                      f.write(file_info['body'])
  
                  self.logger.info('File saved at %s' % data['name'])
  
                  yield self.mongodb.save(data)
                  result.append(data)
  
          self.write(dumps(result))
  
subject: Save file info in DB