I have a directive which was repeatedly n times. I have click event action in every directive. Whenever I click, on click function, It change some scope variable names which defined in directive. But It wont change on all other directives? How to achieve this? I have my plunker here.example
html:
<!doctype html>
<html ng-app="myApp" >
<head>
<meta charset="utf-8">
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.6/angular.js"></script>
<script src="script.js"></script>
</head>
<body ng-controller="MainCtrl">
this is 1st time: <div sampledirective></div>
<br />
this is 2nd time: <div sampledirective></div>
<br />
this is 3th time: <div sampledirective></div>
<br />
this is 4th time: <div sampledirective></div>
<br />
this is 5th time: <div sampledirective></div>
</body>
</html>
I have rendered 'sampledirective' as 5 times in my view.
controller:
app.controller('MainCtrl', function($scope) {
$scope.name = 'World';
$scope.bar ="original bar";
$scope.term = "original term"
$scope.temp={};
$scope.callMethod = function (){
$scope.term = "Changed term"
$scope.bar = "Changed bar";
$scope.temp.callMethod();
}
});
I have created one object 'temp' in my controller.
directive:
app.directive('sampledirective', function($http) {
return {
restrict: 'A',
scope:true,
replace: true,
link:function(s,e,a){
s.directive_scope="original directive_scope value";
s.temp.callMethod = function(){
s.directive_scope="Changed directive_scope value";
}
},
template: '<div ><a ng-click="callMethod()">click_here</a> <span> <b>{{bar}}</b></span> <span> <b>{{term}}</b></span> <span> <b>{{directive_scope}}</b></span></div>'
}
});
In my directive template I have 'temp.callMethod()' which is changed the scope variable value 'directive_scope= Changed directive_scope value'. But It was not reflected in other directives. How to achieve this?
Take a closer look at your directive definition, notice you put scope:true in there.
What it does is it tells Angular to create a new isolated scope for this particular instance of the directive inheriting it from the parent one.
So you are stuck with 5 directive instances all with their own scopes and when you assign directive_scope in one of them it will in no way reflect in the others. You can read more about directives and their scopes here
You should define property in the parent scope and then pass it to the directive using two-way binding
Controller definition
app.controller('MainCtrl', ['$scope', function ($scope) {
$scope.directiveScope = null;
$scope.temp = {};
$scope.callMethod = function () {
$scope.term = "Changed term"
$scope.bar = "Changed bar";
$scope.temp.callMethod();
};
}]);
Directive definition
app.directive('sampleDirective', function () {
return {
...
scope: {
temp: '=',
callMethod: '&',
directiveScope: '='
},
...
};
});
HTML
<div sample-directive temp="temp" call-method="callMethod()" directive-scope="directiveScope"></div>
Be aware that each directive instance will write it's own temp.callMethod function to the parent scope's temp property.
You should define a service that will store the shared values and inject it in the controller and the directive
Service definition
app.factory('sharedData', function () {
return {
directiveScope: null
};
});
Controller definition
app.controller('MainCtrl', ['$scope', 'sharedData', function ($scope, sharedData) {
...
$scope.callMethod = function () {
$scope.term = "Changed term"
$scope.bar = "Changed bar";
sharedData.directiveScope = "Changed directive_scope value";
}
}]);
Directive definition
app.directive('sampleDirective', ['sharedData', function (sharedData) {
return {
scope: {
callMethod: '='
},
link: function ($scope, $element) {
$scope.sharedData = sharedData;
},
template: '<div><a ng-click="callMethod()">click_here</a> <span> <b>{{bar}}</b></span> <span> <b>{{term}}</b></span> <span> <b>{{sharedData.directiveScope}}</b></span></div>'
};
}]);
Notice that I changed the output in the template to {{sharedData.directiveScope}}
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