在 ui-router 的模板中使用 $templateCache [英] Using $templateCache in ui-router's template
问题描述
我可以在 ui-router 的模板中使用 $templateCache 吗?
Can i use $templateCache in ui-router's template?
模板将缓存在解析部分,我想在相同状态下使用缓存模板.
The template will be cached in resolve section and i want to use cached template in the same state.
$stateProvider
.state('dashboard', {
url: "/dashboard",
template: function($templateCache){
console.log('test 2');
return $templateCache.get('templates/template1.html'); // returns undefined
},
resolve:{
baseTemplates: function($ocLazyLoad) {
// here the template will be cached...
return $ocLazyLoad.loadTemplateFile(['base/dashboard.html']).then(function(){
console.log('test 1');
});
}
}
})
// console prints "test 2" before than "test 1"
更新:(+ 代码更新)
我认为我的代码的解决部分有问题.因为它在模板部分之后运行!并导致返回 $templateCache.get 未定义.
I Think resolve section of my code has an issue. because it runs after template section! and it cause returning $templateCache.get being undefined.
我使用 ocLazyLoad 插件来缓存模板,它返回一个正确的承诺.
I use ocLazyLoad plugin to cache template and it returns a correct promise.
为什么模板不等待解析?
推荐答案
动态设置动态模板的方式不是通过template
属性而是templateProvider
.有一个有效的 plunker,这是片段:
The way how to dynamically set the dynamic template is not via the template
property but templateProvider
. There is a working plunker, and this is the snippet:
// this is a run event (executed after config in fact)
// in which we do inejct a value into $templateCache
.run(function($templateCache){
// this could be lazy... elswhere
$templateCache.put('templates/template1.html'
, '<div><h4>dashboard</h4></div>');
})
.config(function($stateProvider, $urlRouterProvider) {
$urlRouterProvider.otherwise('/dashboard');
$stateProvider.state('dashboard', {
url: '/dashboard',
// this is the place where to resolve dynamic template
templateProvider: function($templateCache){
// simplified, expecting that the cache is filled
// there should be some checking... and async $http loading if not found
return $templateCache.get('templates/template1.html');
},
})
});
见:
而且,我要说的是,你自己可以使用$templateCache
,但它已经被ui-router
使用了.负责为我们的视图加载模板 (from url, string...) 的主要服务是:
And also, I would say, that not ownly you can use the $templateCache
, but it is already used by ui-router
. The main service responsible for loading templates (from url, string...) for our views is the:
正如其代码所示,它确实使用 $templateCache
作为自然优化($templateFactory
代码片段:)
which, as its code shows, does use $templateCache
as a natural optimization ($templateFactory
code snippet:)
...
/**
* @ngdoc function
* @name ui.router.util.$templateFactory#fromUrl
* @methodOf ui.router.util.$templateFactory
*
* @description
* Loads a template from the a URL via `$http` and `$templateCache`.
*
* @param {string|Function} url url of the template to load, or a function
* that returns a url.
* @param {Object} params Parameters to pass to the url function.
* @return {string|Promise.<string>} The template html as a string, or a promise
* for that string.
*/
this.fromUrl = function (url, params) {
if (isFunction(url)) url = url(params);
if (url == null) return null;
else return $http
.get(url, { cache: $templateCache })
.then(function(response) { return response.data; });
};
...
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