我有一个这样的视图对象:
App.ThingView = Ember.View.extend({
things: App.thingsController,
weightBinding: 'content.weight',
unitConversionFactorBinding: 'App.thingsController.unitConversionFactor',
percentWeight: function() {
var weight = this.getPath('content.weight');
var totalWeight = this.getPath('things.totalWeight');
return (weight / totalWeight) * 100;
}.property('content.weight', 'things.totalWeight'),
weightUnits: function() {
var weight = this.getPath('content.weight');
var unitConversionFactor = this.get('unitConversionFactor');
return weight * unitConversionFactor;
}.property('content.weigth', 'unitConversionFactor'),
});
此视图用于迭代控制器数组,如下所示:
{{#each App.thingsController tagName="ul"}}
{{#view App.ThingView contentBinding="this"}}
{{weight}} - {{percentWeight}} % - {{weightUnits}}
{{#view deleteButton}}Delete{{/view}}
{{/view}}
{{/each}}
我想显示weigthUnits的总数,基本上迭代#each帮助器渲染的视图并添加它们。这可能吗?或者我是否需要恢复将所有这些计算属性逻辑放入模型中(以便从控制器访问聚合计算)?我在这里设置了一个jsfiddle: http://jsfiddle.net/sohara/MuwDd/19/
答案 0 :(得分:0)
这个怎么样:http://jsfiddle.net/tomwhatmore/fqR8W/1/
现在赶时间,但我觉得js小提琴涵盖了吗?如上所述,将weightUnit逻辑移动到模型中。