google-app-engine - App Engine SDK DevServer 只读模式？

Question

有没有办法以只读模式运行 App Engine 开发服务器，以模拟 Google 将数据存储区置于只读模式的计划维护？

Gracefully Degrading During Scheduled Maintenance

Answer 1

我希望有一个复选框可以将数据存储设置为只读。这个 hack 似乎可以满足我的需要。将以下内容放入您的主处理程序中:

from google.appengine.runtime.apiproxy_errors import CapabilityDisabledError
from google.appengine.api import apiproxy_stub_map

def make_datastore_readonly():
  """Throw ReadOnlyError on put and delete operations."""
  def hook(service, call, request, response):
    assert(service == 'datastore_v3')
    if call in ('Put', 'Delete'):
      raise CapabilityDisabledError('Datastore is in read-only mode')
  apiproxy_stub_map.apiproxy.GetPreCallHooks().Push('readonly_datastore', hook, 'datastore_v3')

def main():
  make_datastore_readonly()

它是在这里找到的: http://groups.google.com/group/google-appengine/msg/51db9d51401715ca