我想创建一个带有动态控制器的动态视图的指令。控制器和模板视图来自服务器。
指令
var DirectivesModule = angular.module('BPM.Directives', []);
(function () {
'use strict';
angular
.module('BPM.Directives')
.directive('bpmCompletedTask', bpmCompletedTask);
bpmCompletedTask.$inject = ['$window'];
function bpmCompletedTask ($window) {
// Usage:
// <bpmCompletedTask></bpmCompletedTask>
// Creates:
//
var directive = {
link: link,
restrict: 'E',
scope: {
type: '=',
taskdata: '=',
controllername:'@'
},
template: '<div ng-include="getContentUrl()"></div>',
controller: '@',
name: 'controllername'
};
return directive;
function link(scope, element, attrs) {
scope.getContentUrl = function () {
return '/app/views/TasksViews/' + scope.type + '.html';
}
scope.getControllerName = function ()
{
console.warn("Controller Name is " + scope.type);
return scope.type;
}
}
}
})();
我在这里试图使用指令
<div ng-controller="WorkflowHistoryController as vm">
<h2>Workflow History</h2>
<h3>{{Id}}</h3>
<div ng-repeat="workflowStep in CompletedWorkflowSteps">
<bpm-completed-task controllername="workflowStep.WorkflowTaskType.DataMessageViewViewName" taskdata="workflowStep.WorkflowTaskOutcome.TaskOutcome" type="workflowStep.WorkflowTaskType.DataMessageViewViewName">
</bpm-completed-task>
</div>
</div>
现在的问题是,当指令获取控制器名称时,它将其作为文字字符串而不是参数。
可行吗? 如果它不可行,用控制器创建动态视图并在ng-repeat中动态显示它们的最佳解决方案是什么?
谢谢,
更新1月20日我刚刚更新了我的代码,以防有人对此感兴趣。所有的积分都归@Meligy所有。
第一指令:
(function () {
'use strict';
angular
.module('BPM.Directives')
.directive('bpmCompletedTask', bpmCompletedTask);
bpmCompletedTask.$inject = ['$compile', '$parse'];
function bpmCompletedTask ($compile, $parse) {
var directive = {
link: function (scope, elem, attrs) {
console.warn('in the first directive - before if');
if (!elem.attr('bpm-completed-task-inner'))
{
console.warn('in the first directive');
var name = $parse(elem.attr('controllername'))(scope);
console.warn('Controller Name : ' + name);
elem = elem.removeAttr('bpm-completed-task');
elem.attr('controllernameinner', name);
elem.attr('bpm-completed-task-inner', '');
$compile(elem)(scope);
}
},
restrict: 'A',
};
return directive;
}
})();
第二指令
angular
.module('BPM.Directives')
.directive('bpmCompletedTaskInner',['$compile', '$parse',
function ($window, $compile, $parse) {
console.warn('in the second directive');
return {
link: function (scope, elem, attrs) {
console.warn('in the second directive');
scope.getContentUrl = function () {
return '/app/views/TasksViews/' + scope.type + '.html';
}
},
restrict: 'A',
scope: {
type: '=',
taskdata: '=',
controllernameinner: '@'
},
template: '<div ng-include="getContentUrl()"></div>',
controller: '@',
name: 'controllernameinner'
};
}]);
Html
<div ng-repeat="workflowStep in CompletedWorkflowSteps">
<div bpm-completed-task controllername="workflowStep.WorkflowTaskType.DataMessageViewViewName" taskdata="workflowStep.WorkflowTaskOutcome.TaskOutcome"
type="workflowStep.WorkflowTaskType.DataMessageViewViewName">
</div>
</div>
答案 0 :(得分:3)
<强>更新强>
我得到了它,但它真的很难看。检查:
你的例子有很多动人的东西,所以这个很简单,但你做了什么。
基本上你需要一个包装器指令,它接受JS对象并转换为字符串属性,然后你可以使用هى你的指令用于其他一切(模板,范围等)。
更新2:
代码内联:
var app = angular.module('myApp', []).
directive('communicatorInner', ["$parse", "$compile",
function($parse, $compile) {
return {
restrict: 'A',
template: "<input type='text' ng-model='message'/><input type='button' value='Send Message' ng-click='sendMsg()'><br/>",
scope: {
message: '='
},
controller: '@'
};
}
]).
directive('communicator', ['$compile', '$parse',
function($compile, $parse) {
return {
restrict: 'E',
link: function(scope, elem) {
if (!elem.attr('communicator-inner')) {
var name = $parse(elem.attr('controller-name'))(scope);
elem = elem.removeAttr('controller-name')
elem.attr('communicator-inner', name);
$compile(elem)(scope);
}
}
};
}
]).
controller("PhoneCtrl", function($scope) {
$scope.sendMsg = function() {
alert($scope.message + " : sending message via Phone Ctrl");
}
}).
controller("LandlineCtrl", function($scope) {
$scope.sendMsg = function() {
alert($scope.message + " : sending message via Land Line Ctrl ");
}
})
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.9/angular.min.js"></script>
<div ng-app="myApp">
<div ng-init="test = {p: 'PhoneCtrl', l: 'LandlineCtrl' }">
<communicator controller-name="test.p" message="'test1'"></communicator>
<communicator controller-name="test.l"></communicator>
</div>
</div>
原创(现在不相关但可以帮助其他相关问题)
是的,它应该有用。
使用Angular 1.3进行测试:
要检查的事项:
是否定义了控制器并将其添加到模块中?它不会起作用
如果控制器只是一个全局功能,它将无法工作。必须通过<myModule>.controller("<controllerName>", <functiion>)
API
ng-controller
是否有效?只需将其添加到模板
同样,在指令工作之外直接使用ng-controller?