在Google应用引擎服务之间进行沟通 [英] Communicating between google app engine services

问题描述

我的项目结构如下所示，

My project structure looks like below,

.
├── app
│   ├── api
│   ├── models
│   ├── services
│   │   └── lib
|   |   |__ worker.yaml
|   |   |__ worker.py
|   |_ main.py
|_ app.yaml

我试图导入 model 来自 app 模块（即默认模块）中的 worker.py like，

I'm trying to import models from app module (ie, default module) in worker.py like,

from app.models import db

但它显示没有名为app.models的模块。但是我可以在 main.py 中实现同样的功能。注意我正在运行 app.yaml 和 worker.yaml 文件。

But it shows No module named app.models. But I can achieve the same inside main.py.Note that I'm running both app.yaml and worker.yaml files.

推荐答案

部署时，GAE服务/模块不会在模块目录外共享任何 .yaml 文件存在的目录。

When deployed, GAE Services/modules do not share anything outside their module directory, which is the directory in which their .yaml file exists.

所以 worker.py 不会在服务 dir（其中 worker.yaml 存在）无法看到 models 。但是 main.py 可以，因为模型在它的 app dir中（其中 app.yaml exists）。

So worker.py won't see anything above the services dir (where worker.yaml exists), thus it can't see models. But main.py can, since models is inside its app dir (where app.yaml exists).

您可以在服务中符号链接模型 如果需要，请参阅在App Engine模块之间共享实体

或者，也许看看关于如何构建多模块应用程序的示例？

Or maybe take a look at Can a default service/module in a Google App Engine app be a sibling of a non-default one in terms of folder structure? for an example of how I'd structure a multi-module app?

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