Mengakses metode pengontrol berarti mengakses metode pada lingkup induk dari pengontrol direktif / tautan / cakupan.
Jika arahan berbagi / mewarisi ruang lingkup induk maka cukup mudah untuk hanya memanggil metode lingkup induk.
Dibutuhkan lebih banyak pekerjaan ketika Anda ingin mengakses metode lingkup induk dari lingkup direktif terisolasi.
Ada beberapa opsi (mungkin lebih dari yang tercantum di bawah) untuk memanggil metode lingkup induk dari lingkup arahan terisolasi atau menonton variabel lingkup induk ( opsi # 6 khusus).
Perhatikan bahwa saya menggunakan link function
contoh-contoh ini tetapi Anda dapat menggunakan adirective controller
juga berdasarkan persyaratan.
Pilihan 1. Melalui Objek literal dan dari template html direktif
index.html
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.9/angular.js" data-semver="1.3.9"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<p>Hello {{name}}!</p>
<p> Directive Content</p>
<sd-items-filter selected-items="selectedItems" selected-items-changed="selectedItemsChanged(selectedItems)" items="items"> </sd-items-filter>
<P style="color:red">Selected Items (in parent controller) set to: {{selectedItemsReturnedFromDirective}} </p>
</body>
</html>
itemfilterTemplate.html
<select ng-model="selectedItems" multiple="multiple" style="height: 200px; width: 250px;" ng-change="selectedItemsChanged({selectedItems:selectedItems})" ng-options="item.id as item.name group by item.model for item in items | orderBy:'name'">
<option>--</option>
</select>
app.js
var app = angular.module('plunker', []);
app.directive('sdItemsFilter', function() {
return {
restrict: 'E',
scope: {
items: '=',
selectedItems: '=',
selectedItemsChanged: '&'
},
templateUrl: "itemfilterTemplate.html"
}
})
app.controller('MainCtrl', function($scope) {
$scope.name = 'TARS';
$scope.selectedItems = ["allItems"];
$scope.selectedItemsChanged = function(selectedItems1) {
$scope.selectedItemsReturnedFromDirective = selectedItems1;
}
$scope.items = [{
"id": "allItems",
"name": "All Items",
"order": 0
}, {
"id": "CaseItem",
"name": "Case Item",
"model": "PredefinedModel"
}, {
"id": "Application",
"name": "Application",
"model": "Bank"
}]
});
working plnkr: http://plnkr.co/edit/rgKUsYGDo9O3tewL6xgr?p=preview
Pilihan 2. Melalui Object literal dan dari directive link / scope
index.html
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.9/angular.js" data-semver="1.3.9"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<p>Hello {{name}}!</p>
<p> Directive Content</p>
<sd-items-filter selected-items="selectedItems" selected-items-changed="selectedItemsChanged(selectedItems)" items="items"> </sd-items-filter>
<P style="color:red">Selected Items (in parent controller) set to: {{selectedItemsReturnedFromDirective}} </p>
</body>
</html>
itemfilterTemplate.html
<select ng-model="selectedItems" multiple="multiple" style="height: 200px; width: 250px;"
ng-change="selectedItemsChangedDir()" ng-options="item.id as item.name group by item.model for item in items | orderBy:'name'">
<option>--</option>
</select>
app.js
var app = angular.module('plunker', []);
app.directive('sdItemsFilter', function() {
return {
restrict: 'E',
scope: {
items: '=',
selectedItems: '=',
selectedItemsChanged: '&'
},
templateUrl: "itemfilterTemplate.html",
link: function (scope, element, attrs){
scope.selectedItemsChangedDir = function(){
scope.selectedItemsChanged({selectedItems:scope.selectedItems});
}
}
}
})
app.controller('MainCtrl', function($scope) {
$scope.name = 'TARS';
$scope.selectedItems = ["allItems"];
$scope.selectedItemsChanged = function(selectedItems1) {
$scope.selectedItemsReturnedFromDirective = selectedItems1;
}
$scope.items = [{
"id": "allItems",
"name": "All Items",
"order": 0
}, {
"id": "CaseItem",
"name": "Case Item",
"model": "PredefinedModel"
}, {
"id": "Application",
"name": "Application",
"model": "Bank"
}]
});
plnkr berfungsi: http://plnkr.co/edit/BRvYm2SpSpBK9uxNIcTa?p=preview
Opsi # 3. Melalui referensi Fungsi dan dari template html direktif
index.html
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.9/angular.js" data-semver="1.3.9"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<p>Hello {{name}}!</p>
<p> Directive Content</p>
<sd-items-filter selected-items="selectedItems" selected-items-changed="selectedItemsChanged" items="items"> </sd-items-filter>
<P style="color:red">Selected Items (in parent controller) set to: {{selectedItemsReturnFromDirective}} </p>
</body>
</html>
itemfilterTemplate.html
<select ng-model="selectedItems" multiple="multiple" style="height: 200px; width: 250px;"
ng-change="selectedItemsChanged()(selectedItems)" ng-options="item.id as item.name group by item.model for item in items | orderBy:'name'">
<option>--</option>
</select>
app.js
var app = angular.module('plunker', []);
app.directive('sdItemsFilter', function() {
return {
restrict: 'E',
scope: {
items: '=',
selectedItems:'=',
selectedItemsChanged: '&'
},
templateUrl: "itemfilterTemplate.html"
}
})
app.controller('MainCtrl', function($scope) {
$scope.name = 'TARS';
$scope.selectedItems = ["allItems"];
$scope.selectedItemsChanged = function(selectedItems1) {
$scope.selectedItemsReturnFromDirective = selectedItems1;
}
$scope.items = [{
"id": "allItems",
"name": "All Items",
"order": 0
}, {
"id": "CaseItem",
"name": "Case Item",
"model": "PredefinedModel"
}, {
"id": "Application",
"name": "Application",
"model": "Bank"
}]
});
working plnkr: http://plnkr.co/edit/Jo6FcYfVXCCg3vH42BIz?p=preview
Opsi # 4. Melalui referensi Fungsi dan dari tautan / lingkup direktif
index.html
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.9/angular.js" data-semver="1.3.9"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<p>Hello {{name}}!</p>
<p> Directive Content</p>
<sd-items-filter selected-items="selectedItems" selected-items-changed="selectedItemsChanged" items="items"> </sd-items-filter>
<P style="color:red">Selected Items (in parent controller) set to: {{selectedItemsReturnedFromDirective}} </p>
</body>
</html>
itemfilterTemplate.html
<select ng-model="selectedItems" multiple="multiple" style="height: 200px; width: 250px;" ng-change="selectedItemsChangedDir()" ng-options="item.id as item.name group by item.model for item in items | orderBy:'name'">
<option>--</option>
</select>
app.js
var app = angular.module('plunker', []);
app.directive('sdItemsFilter', function() {
return {
restrict: 'E',
scope: {
items: '=',
selectedItems: '=',
selectedItemsChanged: '&'
},
templateUrl: "itemfilterTemplate.html",
link: function (scope, element, attrs){
scope.selectedItemsChangedDir = function(){
scope.selectedItemsChanged()(scope.selectedItems);
}
}
}
})
app.controller('MainCtrl', function($scope) {
$scope.name = 'TARS';
$scope.selectedItems = ["allItems"];
$scope.selectedItemsChanged = function(selectedItems1) {
$scope.selectedItemsReturnedFromDirective = selectedItems1;
}
$scope.items = [{
"id": "allItems",
"name": "All Items",
"order": 0
}, {
"id": "CaseItem",
"name": "Case Item",
"model": "PredefinedModel"
}, {
"id": "Application",
"name": "Application",
"model": "Bank"
}]
});
working plnkr: http://plnkr.co/edit/BSqx2J1yCY86IJwAnQF1?p=preview
Opsi # 5: Melalui ng-model dan pengikatan dua arah, Anda dapat memperbarui variabel lingkup induk. . Jadi, Anda mungkin tidak perlu menjalankan fungsi lingkup induk dalam beberapa kasus.
index.html
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.9/angular.js" data-semver="1.3.9"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<p>Hello {{name}}!</p>
<p> Directive Content</p>
<sd-items-filter ng-model="selectedItems" selected-items-changed="selectedItemsChanged" items="items"> </sd-items-filter>
<P style="color:red">Selected Items (in parent controller) set to: {{selectedItems}} </p>
</body>
</html>
itemfilterTemplate.html
<select ng-model="selectedItems" multiple="multiple" style="height: 200px; width: 250px;"
ng-options="item.id as item.name group by item.model for item in items | orderBy:'name'">
<option>--</option>
</select>
app.js
var app = angular.module('plunker', []);
app.directive('sdItemsFilter', function() {
return {
restrict: 'E',
scope: {
items: '=',
selectedItems: '=ngModel'
},
templateUrl: "itemfilterTemplate.html"
}
})
app.controller('MainCtrl', function($scope) {
$scope.name = 'TARS';
$scope.selectedItems = ["allItems"];
$scope.items = [{
"id": "allItems",
"name": "All Items",
"order": 0
}, {
"id": "CaseItem",
"name": "Case Item",
"model": "PredefinedModel"
}, {
"id": "Application",
"name": "Application",
"model": "Bank"
}]
});
plnkr berfungsi: http://plnkr.co/edit/hNui3xgzdTnfcdzljihY?p=preview
Opsi # 6: Melalui $watch
dan$watchCollection
Ini adalah dua cara mengikatitems
semua contoh di atas, jika item dimodifikasi dalam lingkup induk, item dalam direktif juga akan mencerminkan perubahan.
Jika Anda ingin menonton atribut atau objek lain dari lingkup induk, Anda dapat melakukannya menggunakan $watch
dan$watchCollection
seperti yang diberikan di bawah ini
html
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>
document.write('<base href="' + document.location + '" />');
</script>
<link rel="stylesheet" href="style.css" />
<script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.9/angular.js" data-semver="1.3.9"></script>
<script src="app.js"></script>
</head>
<body ng-controller="MainCtrl">
<p>Hello {{user}}!</p>
<p>directive is watching name and current item</p>
<table>
<tr>
<td>Id:</td>
<td>
<input type="text" ng-model="id" />
</td>
</tr>
<tr>
<td>Name:</td>
<td>
<input type="text" ng-model="name" />
</td>
</tr>
<tr>
<td>Model:</td>
<td>
<input type="text" ng-model="model" />
</td>
</tr>
</table>
<button style="margin-left:50px" type="buttun" ng-click="addItem()">Add Item</button>
<p>Directive Contents</p>
<sd-items-filter ng-model="selectedItems" current-item="currentItem" name="{{name}}" selected-items-changed="selectedItemsChanged" items="items"></sd-items-filter>
<P style="color:red">Selected Items (in parent controller) set to: {{selectedItems}}</p>
</body>
</html>
skrip app.js
var app = angular.module ('plunker', []);
app.directive('sdItemsFilter', function() {
return {
restrict: 'E',
scope: {
name: '@',
currentItem: '=',
items: '=',
selectedItems: '=ngModel'
},
template: '<select ng-model="selectedItems" multiple="multiple" style="height: 140px; width: 250px;"' +
'ng-options="item.id as item.name group by item.model for item in items | orderBy:\'name\'">' +
'<option>--</option> </select>',
link: function(scope, element, attrs) {
scope.$watchCollection('currentItem', function() {
console.log(JSON.stringify(scope.currentItem));
});
scope.$watch('name', function() {
console.log(JSON.stringify(scope.name));
});
}
}
})
app.controller('MainCtrl', function($scope) {
$scope.user = 'World';
$scope.addItem = function() {
$scope.items.push({
id: $scope.id,
name: $scope.name,
model: $scope.model
});
$scope.currentItem = {};
$scope.currentItem.id = $scope.id;
$scope.currentItem.name = $scope.name;
$scope.currentItem.model = $scope.model;
}
$scope.selectedItems = ["allItems"];
$scope.items = [{
"id": "allItems",
"name": "All Items",
"order": 0
}, {
"id": "CaseItem",
"name": "Case Item",
"model": "PredefinedModel"
}, {
"id": "Application",
"name": "Application",
"model": "Bank"
}]
});
Anda selalu dapat merujuk dokumentasi AngularJs untuk penjelasan terperinci tentang arahan.