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问题描述

这里的错误:

我的用户模型的主键是用户名。我的路线的主键是routename。我的API返回内部的数据jsons:{}按照jsonapi.org规格。从而id属性是不是在顶层,如JS-数据的需求。这就是为什么我在一个afterFind返回数据。数据为用户。我试图做这样的事情在路线,但它的路由数组。
控制台登录beforeInject给我:

这里的配置:

  DS.defineResource({
    名称:'用户',
    idAttribute:用户名,
    基本路径:apiEndpoint,    关系:{
        有很多: {
            路线:{
                localField:'路线',
                FOREIGNKEY:用户名
            }
        }
    },
    //仅有此资源
    一个afterFind:功能(资源,数据,CB){
        //做更具体的东西,用户
        CB(NULL,数据。数据);
    }
});DS.defineResource({
    名称:'路线',
    idAttribute:routename',
    基本路径:apiEndpoint,
    cacheResponse:真实,
    关系:{
        属于: {
            用户:{
                家长:真,
                localKey:用户名,
                localField:'用户'
            }
        }
    },
    beforeInject:功能(资源,数据){
        //做更具体的东西,用户
        的console.log(数据);
        返回data.data.routes;
    }
});

这里就是我尝试加载我的路线,但得到错误:

 解析:{
            用户:函数($路径,DS){
                变种的用户名= $ route.current.params.username;
                返回DS.find(用户,用户名)。然后(功能(用户){
                    DS.loadRelations(用户,user.username,['路线']),然后(功能(用户){
                        的console.log(用户);
                    },功能(错误){
                        的console.log(ERR);
                    });
                });
            }
        }


解决方案

不仅是下了数据字段中嵌套的数据,而是一个路径字段。所以,当你找到路线,你想注入是这样的:

  {
  路线:[{
    // FOREIGNKEY给用户
    用户名:john1337',
    路线的//主键
    编号:1234
  }]
}

当你需要注入:

  [{
  用户名:john1337',
  ID:1
}]

一个 afterFindAll 在你的路由受资源

添加到 CB(NULL,data.data.routes)

你要么需要:

A)加入大量的钩所有的资源或后
b)作出反序列化通用的,所以它适用于所有资源。也许这样的事情?

  DS.defaults.afterFind =功能(资源,数据,CB){
  CB(NULL,数据。数据[Resource.name])
};
DS.defaults.afterFindAll =功能(资源,数据,CB){
  CB(NULL,数据。数据[Resource.name])
};

Here's the error:http://puu.sh/lXzja/f773fb6c9a.png

The primary key for my user model is username. The primary key for my routes is the routename. My api returns jsons inside data:{} as per jsonapi.org specs. Thus the id attribute is not in the top-level, as js-data demands. This is why I return data.data in the afterFind for 'users'. I tried to do something like that in 'routes' but it's an array of routes. The console log in beforeInject gives me:

result in beforeInject

Here's the config:

  DS.defineResource({
    name: 'users',
    idAttribute: 'username',
    basePath: apiEndpoint,

    relations: {
        hasMany: {
            routes: {
                localField: 'routes',
                foreignKey: 'username'
            }
        }
    },
    // set just for this resource
    afterFind: function(resource, data, cb) {
        // do something more specific to "users"
        cb(null, data.data);
    }
});

DS.defineResource({
    name: 'routes',
    idAttribute: 'routename',
    basePath: apiEndpoint,
    cacheResponse: true,
    relations: {
        belongsTo: {
            users: {
                parent: true,
                localKey: 'username',
                localField: 'users'
            }
        }
    },
    beforeInject: function(resource, data) {
        // do something more specific to "users"
        console.log(data);
        return data.data.routes;
    }
});

Here's where I try to load my routes but get that err:

  resolve: {
            user: function($route, DS) {
                var username = $route.current.params.username;
                return DS.find('users', username).then(function(user) {
                    DS.loadRelations('users', user.username, ['routes']).then(function(user) {
                        console.log(user);
                    }, function(err) {
                        console.log(err);
                    });
                });
            }
        }
解决方案

Not only is your data nested under a "data" field, but a "routes" field. So when you find the routes, you're trying to inject something like:

{
  routes: [{
    // foreignKey to a user
    username: 'john1337',
    // primary key of a route
    id: 1234
  }]
}

when you need to be injecting:

[{
  username: 'john1337',
  id: 1
}]

Add an afterFindAll on your routes resource to cb(null, data.data.routes).

You'll either need to:

A) Add lots of "after" hooks to all your Resources orB) Make the deserialization generic so it works for all Resources. Perhaps something like this?

DS.defaults.afterFind = function (Resource, data, cb) {
  cb(null, data.data[Resource.name])
};
DS.defaults.afterFindAll = function (Resource, data, cb) {
  cb(null, data.data[Resource.name])
};

这篇关于JS-数据错误:ATTRS必须包含idAttribute指定的属性 - 使用的hasMany关系的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

11-02 15:53