角动态模板指令 [英] angular dynamic templating directives
问题描述
我有一个不同字段类型的列表,我想根据类型应用模板。如果我使用这样的内联模板,我可以使它工作:
I have a list of different field types and I want to apply a template based on type. I can get it to work if I use inline templates like this:
flowPageModule.directive('myField', ['$compile','$http', '$templateCache', function($compile, $http, $templateCache) {
var inlineTemplateMapping = {
select: '<div><span> {{label}}   <select ng-model="metadata.options[0]" ng-options="o.text for o in metadata.options"></select> </span></div>',
text: '<div><span> {{label}}   <input type="text" /> </span></div>'
}
return {
restrict: 'E',
replace: true,
transclude: true,
scope: { type: '=', label: '=', metadata: '=' },
link: function (scope, element, attrs) {
if (scope.metadata) { alert(scope.metadata.options[0].text); }
var templateLiteral = inlineTemplateMapping[scope.type];
element.html(templateLiteral);
$compile(element.contents())(scope);
}
};
}]);
我会如果我可以使用$ http服务从文件中检索模板,真的很喜欢它。我已经尝试了下面的内容,但我总是得到一个Type错误。
I would really like for it to work if i could use the $http service to retrieve a template from a file. I have tried what is below, but I always get a Type error.
flowPageModule.directive('myField', ['$compile','$http', '$templateCache', function($compile, $http, $templateCache) {
var baseUrl = 'directives/field/',
typeTemplateMapping = {
text: 'my-field-text.html',
select: 'my-field-select.html'
};
return {
restrict: 'E',
replace: true,
transclude: true,
scope: { type: '=', label: '=', metadata: '=' },
link: function (scope, element, attrs) {
var templateUrl = baseUrl + typeTemplateMapping[scope.type];
$http.get(templateUrl, {cache: $templateCache}).success( function(html) {
element.html();
$compile(element.contents())(scope);
});
}
};
}]);
为什么会发生这种情况?
Why does this happen?
推荐答案
我得到了创造这个的报酬,但实际上没有人真正关心实施(好还是坏?)..我可以自由地与社区分享这个。
我从另一个SO答案调整了loadT()函数。你可以找到它搜索动态模板角度。此处的调整允许您在$ http承诺未返回时显示空组件。
I got paid to create this, but since actually no one really care about the implementation (good or bad?)...I am feeling free to share this to the community. I adapted the loadT() function from another SO answer. You can find it searching for "dynamic template angular". The adapation here allows you to display an empty component while $http promise has not returned.
用法
<p dynamic template="'template/file.html'"></p>
<p dynamic template="someObjectInController.value"></p>
* transclusion不起作用。所以随意添加/更正。问题在于缺少transclude函数的文档。
*transclusion doesn't work. So feel free to add/correct. The issue lies in the lack of documentation for the transclude function.
cpanel.directive("dynamic", ["$compile", '$templateCache', '$http',
function ($compile, $templateCache, $http) {
return {
priority: 0,
restrict: 'EA',
replace: true,
transclude: true,
controller: 'SomeController',
scope: {
template: "@template"
},
link: function (scope, iElement, iAttrs) {
scope.$parent.$watch(iAttrs.template, function (newvalue, oldvalue) {
if ((oldvalue !== newvalue) && (newvalue !== undefined) && (newvalue !== null)) {
loadT(newvalue);
} else if ((newvalue !== undefined) && (newvalue !== null)) {
loadT(newvalue);
} else {
//TODO
}
}, true);
function loadT(it) {
$http.get(it, { cache: $templateCache}).success(function (templateContent) {
iElement.replaceWith($compile(templateContent)(scope));
});
}
}
};
}
]);
这篇关于角动态模板指令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!