使用DS.FixtureAdapter时无法查询Emberjs模型

Question

我无法查询我的模型.我不知道我做错了什么.

我把我的商店定义为

App.Store = DS.Store.extend({
        revision: 12,
        adapter: DS.FixtureAdapter
    });

我的模型定义了,

var Feature = DS.Model.extend({
    name: DS.attr('string'),
    description: DS.attr('string'),
    parent: DS.belongsTo('SimpleTestManager.Feature'),
    DS.belongsTo('SimpleTestManager.Project'),
    children: DS.hasMany('SimpleTestManager.Feature'),
    requirements: DS.attr('string')
});

App.Feature.adapter = DS.FixtureAdapter.create();

App.Feature.FIXTURES = [
    {
        id: 1,
        name: "my first feature",
        description: "some description",
        parent: null,
        project: 1,
        children:[2],
        requirements: "This is my first feature.  It has many requirements."
    },
    {
        id: 2,
        name: "a sub feature",
        description: "some sub feature.",
        parent: 1,
        project: 1,
        children:[],
        requirements: "This is a sub feature."
    }
];

当我在命令行中运行以下内容时

>>App.Features.find({id:'1'})
Error: assertion failed: Not implemented: You must override the DS.FixtureAdapter::queryFixtures method to support querying the fixture store.

Answer 1

我设法通过使用David Lai的答案解决了上述错误,但没有从DS.Store扩展(Ember Data 1.0.beta.1之后的新方法):

App.FixtureAdapter = DS.FixtureAdapter.extend({
  queryFixtures: function(records, query, type) {
    return records.filter(function(record) {
        for(var key in query) {
            if (!query.hasOwnProperty(key)) { continue; }
            var value = query[key];
            if (record[key] !== value) { return false; }
        }
        return true;
    });
  }
});


App.Store = DS.Store.extend({
  adapter: 'Fixture'
});

Answer 2

感谢您帮助我们解决这个问题.

从我能够收集到的,find()方法调用findQuery(),它调用FixturesAdapter中的queryFixtures().没有实现的想法是开发人员扩展它以实现他们自己的find()来截取不同的搜索结果.对于参数的基本过滤器,我能够做到这一点.

////// Stub data store fixture adapter ///////
App.Store = DS.Store.extend({
    revision: 12,
    //adapter: 'DS.RESTAdapter',
    adapter: DS.FixtureAdapter.extend({
        queryFixtures: function(fixtures, query, type) {
            console.log(query);
            console.log(type);
            return fixtures.filter(function(item) {
                for(prop in query) {
                    if( item[prop] != query[prop]) {
                        return false;
                    }
                }
                return true;
            });
        }
    })
});