AngularJS ng-model 表单驱动的 ng-repeat over UI 模型描述数据如何? [英] AngularJS ng-model form driven by ng-repeat over UI model description data how to?

问题描述

JSFiddle http://jsfiddle.net/vorburger/hyCTA/3/ 说明我对 AngularJS 的(工作)UI 建模"想法；请注意，该表单实际上并未在 HTML 模板中编码，而是由 uimodel JSON 驱动(后者又描述了如何呈现/编辑数据模型):

<标签>{{$index + 1}}.{{auimodel.label}}</label><input ng-model="datamodel[auimodel.model]" type="{{auimodel.type}}"/>

问题是，只要我的模型"不是一个简单的属性，而是一个路径"，那么我的方括号动态键技巧"当然就不再起作用了..如 (broken) http://jsfiddle.net/vorburger/8CxRC/1/ JSFiddle.任何建议如何做到这一点?

PS:或者这样的事情是否一定需要一个完整的自定义指令，而不是迟早?如果可能的话，我宁愿不必这样做，以便继续创作和创作.尽可能简单地维护这种 UI 模型元模板"...

解决方案

我刚刚想出了一种(但可能不是最好的?)方法来实现这一目标.见 http://jsfiddle.net/vorburger/8CxRC/3/ - 基本上仍然基于我的方括号动态键'trick'，但是进行一些预处理:

 for (var i = 0; i <$scope.uimodel.length; i++) {var resolveModelProperty = $scope.datamodel;var剩余路径 = $scope.uimodel[i].model;while (remainingPath.indexOf('.') > -1) {var nextPathSlice = 剩余路径.substr(0, 剩余路径.indexOf('.'));解析模型属性 = 解析模型属性 [nextPathSlice];剩余路径 = 剩余路径.substr(remainingPath.indexOf('.') + 1);}$scope.uimodel[i].modelB =resolutionModelProperty;$scope.uimodel[i].modelL = 剩余路径；}

The JSFiddle http://jsfiddle.net/vorburger/hyCTA/3/ illustrates a (working) "UI modeling" idea I had with AngularJS; note the form is not actually coded out in the HTML template, it's driven by uimodel JSON (which in turn describes how the datamodel is to be rendered/edited):

<div ng-repeat="auimodel in uimodel">
    <label>{{$index + 1}}. {{auimodel.label}}</label>
    <input ng-model="datamodel[auimodel.model]" type="{{auimodel.type}}" />
</div>

Trouble is, as soon as my 'model' isn't a simple property, but a 'path', then my square bracket dynamic keys 'trick' doesn't work anymore of course.. as illustrated by the (broken) http://jsfiddle.net/vorburger/8CxRC/1/ JSFiddle. Any suggestions how one could do this?

PS: Or would something like this necessarily need a complete custom directive rather sooner than later? I’d rather not have to do this, if that’s possible at all, in order to keep creation & maintenance of such UI model "meta templates" as simple as possible...

解决方案

I've just figured out one (but may be not the best?) way to achieve this myself.. see http://jsfiddle.net/vorburger/8CxRC/3/ - basically still based on my square bracket dynamic keys 'trick', but with some pre-processing:

   for (var i = 0; i < $scope.uimodel.length; i++) {
        var resolvedModelProperty = $scope.datamodel;
        var remainingPath = $scope.uimodel[i].model;
        while (remainingPath.indexOf('.') > -1) {
            var nextPathSlice = remainingPath.substr(0, remainingPath.indexOf('.'));
            resolvedModelProperty = resolvedModelProperty[nextPathSlice];
            remainingPath = remainingPath.substr(remainingPath.indexOf('.') + 1);
        }
        $scope.uimodel[i].modelB = resolvedModelProperty;
        $scope.uimodel[i].modelL = remainingPath;
    }

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