[英]AngularJS : ngRepeat scope fails in custom directive with isolated scope and ngTransclude
我根据JQuery Steps插件做了一个自定义指令(“向导”)。 但是我在指令中使用ngRepeat时遇到了问题。 指令使用ngTransclude,因此我可以在页面标记内提供步骤内容。
我远没有Angular专家,但是我能找到的是这是Angular中的一个bug / freakaccident,其中ngRepeat在具有隔离范围和包含范围的指令内使用。 就像这里提到的https://github.com/angular/angular.js/issues/7874,但是我似乎无法获得任何建议:
该指令如下所示:
Directives.wizard = ['$compile', function ($compile) {
return {
restrict: 'E',
scope: {
cancel: '&',
finish: '&',
stepChanged: '&'
},
template: '<div class="wizard" data-ng-transclude></div>',
replace: true,
transclude: true,
link: function ($scope, element, attrs, ctrl) {
// directive has to be wrapped in order to ngModel on sections to work with transclude: true
element.wrapInner('<div class="steps-wrapper">');
var opts = {
headerTag: "h3",
bodyTag: "section",
transitionEffect: "slideLeft",
onCanceled: function (event, currentIndex) {
$scope.cancel();
},
onFinished: function (event, currentIndex) {
$scope.finish();
},
onStepChanged: function (event, currentIndex) {
$scope.stepChanged();
}
};
var stepsEl = element.children('.steps-wrapper').steps(opts);
// wrap 'n compile..
$compile(stepsEl)($scope);
}
};}];
标记
<wizard>
<h3>Title</h3>
<section>
<p><DG:TextControl runat="server" Key="MineSuccesHistorier.Step1"/></p>
<input data-ng-model="$parent.newData.Title"></input> <!-- outputs array just fine -->
<!-- test stuff here -->
<!-- 1. regular ng-repeat - doesnt work (also tried with $parent.$parent which Batarang says is the correct path -->
<ul>
<li data-ng-repeat="item in $parent.newData.Competences">{{item.Title}}</li>
</ul>
<!-- 2. try with ng-init - doesnt work -->
<ul data-ng-init="comp = $parent.newData.Competences">
<li data-ng-repeat="item in comp">{{item.Title}}</li>
</ul>
</section>
<h3>Tab</h3>
<section>
<!-- next wizard tab here -->
</section>
如何在控制器中设置数据
$scope.newData = {
"Competences": [
{
"IsSelected": true,
"Title": "Hest"
},
{
"IsSelected": false,
"Title": "Kat"
},
{
"IsSelected": true,
"Title": "Ko"
},
{
"IsSelected": false,
"Title": "Ged"
}
],
"Id": "905c1285-d58b-4f65-8df5-52986c70a820",
"Situation": null,
"Title": null}
任何想法都非常感谢,在此先感谢!
更新25/3:在此处添加了plnkr http://plnkr.co/edit/kNl4UEoUa7zU4CgWaGSa?p=preview当我在指令中添加隔离范围时,转发器将停止工作。 如果我不考虑隔离范围,则好像ngRepeats已被编译多次。
更新2 25/3:使用Vinays编译建议添加了新的plunkr-ng-repeat现在仅编译一次。 但是在控制器范围内与ngModel进行双向绑定不起作用http://plnkr.co/edit/TR3XxvV4IYI66h4pY5hx?p=preview
内容越来越重复,因为ng-repeat
将一次编译内容,而$compile
将再次编译它。
指示
app.directive('wizard', function($timeout, $compile) {
return {
restrict: 'E',
replace: true,
template: '<div class="mywizard"></div>',
compile: function (tEl) {
return function(scope, element, attrs) {
var stepsEl;
element.wrapInner('<div class="steps-wrapper">');
element.children('.steps-wrapper').append(tEl.context.innerHTML);
var content = $compile(element.contents())(scope);
$timeout(function () {
element.children('.steps-wrapper').steps(opts);
})
}
}
};
});
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