Question

我的rails应用程序用于生成如下所示的JSON：

{"paintings":
  [
    {"id":1,"name":"a"},
    {"id":2,"name":"b"}
  ]
}

我添加了rabl json格式，现在json看起来像这样：

[
  {"id":1,"name":"a"},
  {"id":2,"name":"b"}
]

Ember告诉我

Uncaught Error: assertion failed: Your server returned a hash with the key 0 but you have no mapping for it

如何让Ember明白这一点？或者我应该如何让兔子理解为可以理解？

Answer 1

找到解决方案。我的index.json.rabl看起来像这样：

collection @paintings 
extends 'paintings/show'

现在看起来像这样：

collection @paintings => :paintings
extends 'paintings/show'

Answer 2

您可以延长DS.RESTSerializer并更改extract和extractMany。以下仅是我在.NET中使用的序列化程序的复制和粘贴，用于相同的场景：

window.App = Ember.Application.create();
var adapter = DS.RESTAdapter.create();
var serializer = Ember.get( adapter, 'serializer' );
serializer.reopen({
    extractMany: function (loader, json, type, records) {
        var root = this.rootForType(type);
        root = this.pluralize(root);
        var objects;

        if (json instanceof Array) {
            objects = json;
        }
        else {
            this.sideload(loader, type, json, root);
            this.extractMeta(loader, type, json);
            objects = json[root];
        }

        if (objects) {
            var references = [];
            if (records) { records = records.toArray(); }

            for (var i = 0; i < objects.length; i++) {
                if (records) { loader.updateId(records[i], objects[i]); }
                var reference = this.extractRecordRepresentation(loader, type, objects[i]);
                references.push(reference);
            }

            loader.populateArray(references);
        }
    },
    extract: function (loader, json, type, record) {
        if (record) loader.updateId(record, json);
        this.extractRecordRepresentation(loader, type, json);
    }
});

在设置商店之前，必须将模型配置为正确加载：

serializer.configure( 'App.Painting', {
    sideloadAs: 'paintings'
} );

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

现在，您应该能够将无根JSON有效负载加载到您的应用中。

（见fiddle）

将Rabl格式化为Ember或将Ember映射到Rabl？

2 个答案: