我使用离子:我创建了一个" Notification"指令执行一些预处理以确定哪种类型的通知('警报','消息'重要消息')显示基于属性中传递的对象。在该指令的模板中,我正在调用另一个名为" Update Notification"的指令。 - 这是一个项目选项,当用户向左滑动项目并且(应该)调用具有表单的更新模式时,该项目选项会通过属性"通知来传递模型。&# 34;
我遇到的问题是"更新通知"的模板。正在呼叫showUpdateNotification()
,但它似乎在呼叫"通知"指令的范围功能;即使"更新通知"指令有一个明确的范围。
我想在"更新通知"中定义更新功能。指令能够使用其他模板在应用程序的其他位置调用它,但我不确定如何解决我的范围问题。
感谢您的帮助!
通知指令:
.directive("notification", function($rootScope, BibleService, FirebaseLoginService){
return{
restrict: 'AE',
scope:{
type: '@?type',
message: '=?message'
},
replace: true,
template: "<div ng-include='contentUrl'></div>",
link: function(scope, element, attrs){
scope.contentUrl = 'templates/directives/' + attrs.file + '.html';
attrs.$observe("file",function(v){
scope.contentUrl = 'templates/directives/' + v + '.html';
});
},
controller: function($scope, $rootScope){
//something interesting here.
$scope.hidden = false;
$scope.leaderImage = "";
$scope.notification = "";
$scope.canEdit = false;
if($scope.message){
$scope.leaderImage = $scope.message.leader.image;
if($scope.message.important){
$scope.type ="important"
}else{
$scope.type = "message"
}
if(FirebaseLoginService.loggedUser().id === $scope.message.leader.id){
$scope.canEdit = true;
}else{
$scope.canEdit = false;
};
}
if($scope.type === "alert" && $rootScope.pastDue){
$scope.title = "ATTENTION:"
$scope.notification = $rootScope.pastDueNotification;
}else if($scope.type === "message"){
if($scope.message){
$scope.title = $scope.message.title;
$scope.notification = $scope.message.text;
}
}else{
if($scope.message){
$scope.title = $scope.message.title;
$scope.notification = $scope.message.text;
}
}
$scope.closeNotification = function(){
$scope.hidden = true;
}
}
};
});
通知模板:
<ion-list show-delete="false" can-swipe="true">
<ion-item ng-if="type === 'alert'" ng-hide="hidden" class="item item-icon-left notification-alert item-text-wrap" ng-href="#/app/billing">
<i class="icon ion-alert-circled light"></i>
<h2 class="light"><b>{{title}}</b></h2><hr>
<p><span class="light"><b>{{notification}}</b></span></p>
<ion-option-button class="button-calm" ng-click="closeNotification()">
Close
</ion-option-button>
</ion-item>
<ion-item ng-if="type === 'important'" ng-hide="hidden" class="item item-icon-left notification-important item-text-wrap">
<i class="icon ion-android-hand royal"></i>
<div class="row">
<div class="col-80">
<h2 class="light"><b>Important Message: </b></h2>
<hr><p ng-if="title"><span class="royal"><b>{{title}}</b></span></p>
<p class="small"><span class="light"><b>{{notification}}</b></span></p>
{{message}}
</div>
<div class="col-20">
<img class="notification-thumb" ng-src="{{leaderImage}}" alt="">
</div>
</div>
<update-notification notification="message" file="updateNotificationOption"></update-notification>
<ion-option-button class="button-calm" ng-click="closeNotification()">
Close
</ion-option-button>
</ion-item>
<ion-item ng-if="type === 'message'" ng-hide="hidden" class="item item-icon-left notification-message item-text-wrap">
<i class="icon ion-paper-airplane dark"></i>
<div class="row">
<div class="col-80">
<h2>Message:</h2>
<hr><p ng-if="title"><b>{{title}}</b></p>
<p class="small">{{notification}}</p>
{{message}}
</div>
<div class="col-20">
<img class="notification-thumb" ng-src="{{leaderImage}}" alt="">
</div>
</div>
<update-notification notification="message" file="updateNotificationOption"></update-notification>
<ion-option-button class="button-calm" ng-click="closeNotification()">
Close
</ion-option-button>
</ion-item>
更新通知指令:
.directive("updateNotification", function($rootScope, $localStorage, $timeout, $ionicListDelegate, ChurchService){
return{
restrict: 'E',
scope:{
notification: '='
},
replace: true,
template: "<div ng-include='contentUrl'></div>",
link: function(scope, element, attrs){
scope.contentUrl = 'templates/directives/' + attrs.file + '.html';
attrs.$observe("file",function(v){
scope.contentUrl = 'templates/directives/' + v + '.html';
});
},
controller: function($scope, $ionicModal, $location){
var ctrl = this;
$scope.notice = $scope.notification;
var church = {};
ChurchService.getbyLeader($localStorage.seedUser.leadershipID).then(function(ch){
church = ch;
});
$scope.updateNotification = function (data) {
$rootScope.show('Updating notification...');
if(church.notifications){
for (var i=0; i<church.notifications.length; i++){
var note = church.notifications[i];
if(note.date === data.date){
note = data;
}
}
}
ChurchService.update(church).then(function(){
$scope.closeUpdateNotification();
$location.path('/app/church/'+data.id);
$rootScope.hide();
}, ctrl.updateNotificationFailure);
};
ctrl.updateNotificationFailure = function(error) {
console.log('POST ERROR:', error);
$rootScope.notify("The Notification wasn't updated. Please try again later.")
};
$ionicModal.fromTemplateUrl('templates/updateNotification.html',{
scope: $scope
}).then(function(modal){
$scope.updateNotificationModal = modal;
});
// Open the update modal
$scope.showUpdateNotification = function() {
$scope.updateNotificationModal.show();
$ionicListDelegate.closeOptionButtons();
//console.log($scope.prayerObj);
};
// Triggered in the update modal to close it
$scope.closeUpdateNotification = function() {
$scope.updateNotificationModal.hide();
};
}
};
});
更新通知模板:
<ion-option-button class="button-balanced" ng-click="showUpdateNotification()">
Edit
</ion-option-button>
这是一个Plunker(抱歉Sass没有很好地翻译 - 看起来很糟糕)
答案 0 :(得分:1)
我无法真正找到你的榜样,所以我不会提供一个特定于你的例子的答案,我将介绍大多数人实现指令到指令沟通的方式。
这可能是从内部范围到外部实体进行通信的最常用方法。注意我说&#34;外部实体&#34;而不是&#34;外部范围&#34;。这是因为它不是指令到指令通信的专有。在inner指令中,你建立一个如下的回调:
directive = {
scope: {
onFoo: '&'
},
link: function($scope, elem, attrs){
elem.bind('onClick', function(evt){
//with no callback params
$scope.onFoo()
//with callback params
$scope.onFoo({ $args:'foo' })
}
}
}
您在使用该指令的模板中声明了这一点,其中doSomething
是在您的控制器上定义的方法:
<my-directive on-foo="doSomething()"/>
或使用回调参数
<my-directive on-foo="doSomething($args)"/>
require
使用指令相互通信的更复杂方法是在定义指令时使用require
字段。您可以看到,当自定义指令require
为输入的模型时,它始终使用。例如:
directive = {
require: '^ngModel',
link: function($scope, elem, attrs, ngModel){
ngModel.parsers.push( function(){ ... })
}
}
在上面的示例中,该指令可以访问所需的ngModelController
API。在您的情况下,您可以在外部指令上定义一个控制器,然后在内部指令中要求它:
outerDirective = {
controllerAs: 'outer',
controller: function(){
function OuterDirectiveController(){ ... }
OuterDirectiveController.prototype.doOuter = function(){ ... }
return OuterDirectiveController
},
template: '<div><input><div>...</div><div inner-directive></inner-directive>'
}
在这种情况下,为了简洁,我只是在外部指令模板中声明了内部指令。
innerDirective = {
require: 'outerDirective',
link: function($scope, elem, attrs, outerDirective){
elem.bind('submit', function(){ outerDirective.doOuter()})
}
}
这是一种与许多不同技术和语言的MVC框架的各种组成部分进行通信的经典方式。它肯定不是 角色的做事方式,我通常不会推荐这种方法,除非你无法获得其他任何工作。它也受范围层次结构的制约。最后,它的主要缺点是它需要指令以某种方式知道事件,因此必须有一些商定的事件接口。
outerDirective = {
link:function($scope, elem, attrs){
$scope.$on( 'decendentEvent', function( evt, data ){ ... })
}
}
innerDirective = {
link:function($scope, elem, attrs){
elem.bind('submit', function(){
$scope.$emit( 'decendentEvent', { foo:123 })
}
}
}