Ember模型到json [英] Ember model to json

问题描述

我正在寻找一种将Ember对象转换为json字符串的有效方式，以便在下面的websocket消息中使用它。

I am looking for an efficient way to translate my Ember object to a json string, to use it in a websocket message below

/*
 * Model
 */

App.node = Ember.Object.extend({
  name: 'theName',
  type: 'theType',
  value: 'theValue',
})

websocket方法：

The websocket method:

App.io.emit('node', {node: hash}); 

哈希应该是节点的json表示。 {name：thename，type：theType，..}
必须有一个快速的onliner来做这个..我不想手动，因为我有很多属性，他们可能会改变..

hash should be the json representation of the node. {name: thename, type: theType, ..} There must be a fast onliner to do this.. I dont want to do it manualy since i have many attributes and they are likely to change..

推荐答案

如上所述，您可以从ember-runtime/lib/core.js#inspect 函数来获取对象的关键字，请参阅 http://jsfiddle.net/pangratz666/UUusD/

As stated you can take inspiration from the ember-runtime/lib/core.js#inspect function to get the keys of an object, see http://jsfiddle.net/pangratz666/UUusD/

App.Jsonable = Ember.Mixin.create({
    getJson: function() {
        var v, ret = [];
        for (var key in this) {
            if (this.hasOwnProperty(key)) {
                v = this[key];
                if (v === 'toString') {
                    continue;
                } // ignore useless items
                if (Ember.typeOf(v) === 'function') {
                    continue;
                }
                ret.push(key);
            }
        }
        return this.getProperties.apply(this, ret);
    }
});

注意，由于提交 1124005 - 在 ember-latest.js 中可用，在下一个版本中，您可以通过 ret 数组直接到 getProperties ，所以 getJson 函数的返回语句看起来像这个：

Note, since commit 1124005 - which is available in ember-latest.js and in the next release - you can pass the ret array directly to getProperties, so the return statement of the getJson function looks like this:

return this.getProperties(ret);

这篇关于Ember模型到json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IT屋！