回送hasMany关系在mongodb上不起作用 [英] Loopback hasMany relation doesn't work on mongodb

问题描述

从RedHat linux迁移到AWS上的SUSE之后，我有一些奇怪的行为.

I have some strange behavior after moving from RedHat linux to SUSE on AWS.

之前一切正常.

这是我的关系:

类别:

{
    "name": "Category",
    "plural": "categories",
    "base": "PersistedModel",
    "relations": {
      ...
      "professions": {
        "type": "hasMany",
        "model": "Profession",
        "foreignKey": ""
      }
    }
 }

专业

{
    "name": "Profession",
    "plural": "professions",
    "base": "PersistedModel",
    "relations": {
      ...
      "category": {
        "type": "belongsTo",
        "model": "Category",
        "foreignKey": ""
      }
    }
 }

问题是，当我更新现有的专业时:

The problem is that when I update an existing profession with:

{
     "categoryId" : "..."
}

当我请求/api/categories/{id}/professions

It doesn't work when I request /api/categories/{id}/professions

但是/api/profession/{id}/category可以正常工作.

But /api/profession/{id}/category works fine.

此外，如果我创建新的职业，例如:

Also if I create new Profession like:

{
     "name" : "TEST",
     "categoryId" : "..."
}

两种方法都可以正常工作.

It works fine both ways.

Category.professions.create({名称:"TEST2"});也可以正常工作.

Category.professions.create({ name: "TEST2" }); Works fine as well.

我在AWS上使用RedHat linux.现在，我在AWS上使用SUSE linux.

I was using RedHat linux on AWS. Now I am using SUSE linux on AWS.

Mongo数据库版本:数据库版本v3.0.7

Mongo db version : db version v3.0.7

node --version
v5.4.1

npm --version
3.3.12

npm list loopback
`-- loopback@2.26.2

我试图通过/explorer面板和代码对其进行更新.

I tried to update it from /explorer panel and code.

在代码中(角度)，我这样做:

in code (angular) I do this:

Profession.prototype$updateAttributes(
{
    id: toAdd[i]
},
{
    categoryId: catId
});

正如我所说，所有代码都可以在运行RDHE的测试服务器上运行. 我将检查mongo日志，但我安装了相同的mongo版本并使用相同的mongo.config

And as I said, all the code works on test server running RDHE. I will check mongo logs, but I installed the same mongo version and using same mongo.config

推荐答案

Okey ...所以问题出在以下两个模块之一或两个:

Okey... so the problem was one or both of these modules:

"loopback-connector-mongodb": "^1.13.0"
"loopback-datasource-juggler": "^2.39.0"

由于版本号写为^#.#.#，表示版本更高但兼容. 但是其中之一无法正常工作: https://github.com/strongloop/loopback/issues/274

Since the version number is written as ^#.#.# it means higher but compatible. But one of them wasn't working: https://github.com/strongloop/loopback/issues/274

这引起了所有问题.

简单的解决方案:

"loopback-connector-mongodb": "1.13.0"
"loopback-datasource-juggler": "2.39.0"

我刚刚安装了我知道可以使用的版本.

I just installed the versions which i know that works.

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