ng-bind-html を使用して動的にインクルードされた Angular テンプレートをコンパイルするにはどうすればよいですか?

angular.js: Compiling Dynamically Included HTML Code using ng-bind-html

When working with angular.js, you may encounter scenarios where you need to dynamically include HTML code into a template. To achieve this, the ng-bind-html directive is typically used. However, when attempting to include Angular templates using this approach, they may not be interpreted and instead simply be included in the page without any functionality.

Solution

Instead of using hardcoded templates, you can employ a solution that allows you to compile Angular expressions embedded within an API response. Here's a step-by-step guide:

Step 1: Install the angular-bind-html-compile directive from GitHub: https://github.com/incuna/angular-bind-html-compile

Step 2: Include the directive in your Angular module:

<code class="javascript">angular.module("app", ["angular-bind-html-compile"])</code>

Step 3: Utilize the directive in your template as follows:

<code class="html"><div bind-html-compile="letterTemplate.content"></div></code>

Example:

Controller Object:

<code class="javascript">$scope.letter = { user: { name: "John" } };</code>

JSON Response:

{ "letterTemplate": [
    { content: "<span>Dear {{letter.user.name}},</span>" }
] }

HTML Output:

<code class="html"><div bind-html-compile="letterTemplate.content"> 
   <span>Dear John,</span>
</div></code>

Explanation:

The angular-bind-html-compile directive watches changes to the expression provided in the bind-html-compile attribute. When the value changes, it updates the HTML content of the element and compiles any Angular expressions within it using the $compile service. This allows you to dynamically include and execute Angular templates using ng-bind-html.

Additional Reference:

Here's the relevant directive code for your reference:

<code class="javascript">(function () {
    'use strict';

    var module = angular.module('angular-bind-html-compile', []);

    module.directive('bindHtmlCompile', ['$compile', function ($compile) {
        return {
            restrict: 'A',
            link: function (scope, element, attrs) {
                scope.$watch(function () {
                    return scope.$eval(attrs.bindHtmlCompile);
                }, function (value) {
                    element.html(value);
                    $compile(element.contents())(scope);
                });
            }
        };
    }]);
}());</code>

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