I want to call a function of Controller from Directive, It is for validation. But i'm a bit confused about how to call it from Directive when i'm using isolated scope. Here is the code of directive:-
App.directive('test',function(){
return{
require: "ngModel",
scope:{
a:"=",
b:"=",
c:'=',
d:'='
},
link: function(scope, element, attributes,modelVal )
{
modelVal.$validators.test= function(val)
{
return false;
//isolated scope values will make if condition true or false.
if(scope.a=="true"){
//I need to call a function of controller here. But how can
//i call that function from directive? this is my problem
}
}
scope.$watch("a", function()
{
modelVal.$validate();
});
}//end of link function;
}//end of return;
});//end of directive;
Function is in my controller, i think i don't need to write the controller code. In my html , I'm calling this directive as:
<test a="1" b="2" c="3" d="4" ng-model="abc"></test>
What changes i need to do in my directive to call the controller function which is $scope.testFunction()?
var module = angular.module('myModule', []);
module.controller('TestController', function($scope){
$scope.text = 'test';
// Will be invoked from 'test' directive
$scope.alertMe = function(text){
alert(text);
};
});
module.directive('test', function(){
return {
restrict: 'E',
template: '<input ng-model="text" ng-change="onChange(text)" />',
scope: {
text: '='
},
link: function(scope, elem, attr){
scope.onChange = function(text){
// Invoking parent controller function
scope.$parent.alertMe(text);
}
}
}
})<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<body>
<div ng-app="myModule" ng-controller="TestController">
<test text="text"></test>
</div>
</body>
</html>