Angular：从字符串到字符串的编译模板 [英] Angular: compiling template from string to string

问题描述

查看小提琴

test.directive('testMe', ['$compile', function($compile) {
          return {
            restrict: 'EA',
            transcluded: true,
            link: function(scope, element, attrs) {
              scope.state = 'compiled';
                //a = $(element.html());  //this gives: Error: Syntax error, unrecognized expression: Something I actually want to save {{state}}
                a = $('<div>' + element.html() + '</div>');
              var el = $compile(a)(scope);
              scope.compiled = element.html();
            },
          }
        }]);

由于某种原因，我想编译一个给定范围的模板到一个字符串，并做了一些我放弃的实验。

For some reason I want to compile template with a given scope to a string, and after asking Uncle Google and doing some experiments I gave up.

annyone知道如何做到这一点吗？也许我的做法是错误的？

Does annyone knows how to do this? Maybe my approach is wrong at all?

我想注意，因此我需要模板编译为字符串，保存在一个变量。

I want to notice that as a result I need template compiled to string, saved in a variable.

EDIT

更具体来说，这里是我需要的：

To be more specific, here's what i need:

var template = "<p>{{variable}}</p>";
$scope.variable = "test";
var compiled = //magic goes here
alert(compiled); // gives <p>test</p>

推荐答案

我最近偶然发现了一个类似的问题，我能够解决它与这篇文章一点帮助：
Ben Lesh的博客帖子

I recently stumbled onto a similar problem and after several hours i was able to solve it with a little help from this post: Blog post from Ben Lesh

我想创建一个ComboBox来为另一个实体选择一个图像在关系数据库中。当然我的实体也有其他关系，所以我在一个JSON文件描述他们。

I wanted to create a ComboBox to select an Image for another Entity to save in a relational Database. Of course my Entity had other relations too and so I described them in a JSON-File

//image
{ id: 4, path: 'http://www.example.com/myimage.png', name: 'Picture of my cat' }
//entity
{ id: 7, foo: 'bar', imageId: 4, anotherEntityId: 12}
//anotherEntity
{ id: 12, name: 'My Entity'}

我现在想创建一个Formular用于输入新实体，对于外键我想要一个combobox
然后我声明另一个JSON对象，包含实体的每一列

I now wanted to create a Formular for entering new entities and for the foreign keys I wanted a combobox I then declared another JSON-Object, containing every column of entity and also how i wanted them rendered

{cols: 
    [
        {
         name: 'imageId', 
         displayName: 'Image', 
         type: Image, 
         template: '<img src="{{e.path}}" />{{e.name}}'
         },
         ...
]}

为此，我创建了一个新的指令，名为nComboBoxRenderer

To do so i created a new directive, called nComboBoxRenderer

<ng-combo-box-renderer data="image", template="column.template"></ng-combo-box-renderer>

-

directives.directive('ngComboBoxRenderer', ['$compile', function($compile) {
    return {
        restrict: "E",
        scope: {
            e: '=data',   // in my case this is the image
            template: '=template'  // the template
        },
        link: function($scope, element, attributes) {
            var tl = angular.element("<span>" + $scope.template + "</span>");
            compiled = $compile(tl);
            element.append(tl);
            compiled($scope);
        }
    }
}]);

虽然这不是你所用的完全相同的用例，但涉及的过程看起来是一样的。

While this is not the exact same use case as you have, the process involved appears to be the same.

这篇关于Angular：从字符串到字符串的编译模板的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！