[英]How to change a scope of transcluded elements to a ng-repeat item scope within directive template
我希望能夠獲得被排除的內容。 將其應用於指令中的ng-repeat。 然后將每個ng-repeat的作用域應用於已包含內容的克隆。
在另一個指令A的一部分中,我有這個:
...
<directive-b>
// title is exposed here to directiveA but I want it to be changed to ng-repeat scope later
<p>Hello {{title}}</p>
</directive-b>
...
內部指令B指令
(function() {
'use strict';
angular.module('app')
.directive('directiveB', DirectiveB);
function DirectiveB() {
return {
restrict: 'E',
transclude: true,
scope: {},
bindToController: {},
compile: DirectiveBCompile,
controller: DirectiveBController,
controllerAs: 'vm',
templateUrl: 'directive-b.partial.html'
}
}
function DirectiveBCompile(cElem, cAttr, cTransclude) {
// cTransclude is deprecated... so cant do this here
return InfiniteScrollLink;
}
function DirectiveBController() {
var vm = this;
}
function DirectiveBLink(scope, element, attrs, controller, transclude) {
// ideally would be great to somehow apply ng-repeat scope to each transcluded element here, but I couldn't
scope.data = [{
title: 12345
}, {
title: 345245
}, {
title: 32452345
}];
// this scope doesn't get picked up either
scope.title = "12345";
}
})();
內部指令B指令部分
<ul>
<li data-ng-repeat="data in vm.data" data-ng-transclude>
</li>
</ul>
有什么辦法可以將ng-repeat中的“數據”作為傳遞范圍傳遞?
我想看的是:
<ul>
<li>
<p>Hello 12345</p>
</li>
<li>
<p>Hello 345245</p>
</li>
<li>
<p>Hello 32452345</p>
</li>
</ul>
我能夠以一種非常骯臟的方式做到這一點。
<directive-b>
// just want to point out that this is **probably** the only way to pass
// data-bind inside this element as otherwise scope would be overwritten
<div ng-controller="DirectiveBTemplate as template">
<p>Hello {{template.data.title}}</p>
</div>
</directive-b>
然后,
<ul>
// data="data" is crucial here, basically sets data to ng-repeat scope
<li data-ng-repeat="data in vm.data" data="data" data-ng-transclude>
</li>
</ul>
接着,
(function() {
'use strict';
angular.module('app.widgets')
.controller('DirectiveBTemplate', DirectiveBTemplate)
.directive('directiveB', DirectiveB);
DirectiveBTemplate.$inject = ["$scope"];
function DirectiveBTemplate($scope) {
// I'm basically assigning ng-repeat scope and setting it to DirectiveBTemplate scope, them im retrieving data from ng-repeat.
$scope = $scope.$parent.$parent;
this.data = $scope.data;
}
恩,可惜沒人問這個問題。 對於可能正在尋找答案的人:
實際上,您可以為要在指令中嵌入的元素提供所需的任何作用域-您只需要為此使用transclude函數,如下例所示:
angular.module('MyApp', []) .directive('myDirective', myDirective); function myDirective() { return { scope: {}, restrict: 'E', transclude: true, link: MyDirectiveLinker, template: 'Yes, he is' // see? No ng-transclude attribute in directive's template. Why? Look inside of the link function }; ///// function MyDirectiveLinker ($scope, $element, $attrs, $ctrl, $transclude) { $scope.arrow = ' <- '; // our 'inner' variable $transclude( $scope, // and here, you attach directive's scope to the transcluded element function(_transcludedElement, _scope) { $element.prepend(_transcludedElement); } ); } }
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.5/angular.min.js"></script> <main ng-app="MyApp"> <my-directive> I use data of directive's scope{{arrow}} </my-directive> </main>
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