How can data be passed from a directive to a controller in Angular?

I am currently working on implementing a directive pagination feature and I need to pass the current page number from the directive to a controller in order to run a specific function with this argument. However, I keep getting an 'undefined' error.

<account-pagination pagination-config="paginationConfig" on-change="pageChanged()">
</account-pagination>

Controller:

$scope.pageChanged = function(page) {
    console.log(page); // undefined 
}

Directive:

scope: {
      paginationConfig: '=',
      onChange: '&',
    }


$scope.moveToPage = function(numPage) {
    $scope.currentPage = numPage;
    getPaginData(numPage);
 }

function getPaginData(numPage) {
    $scope.onChange({page: numPage});
}

Template Directive:

<li ng-repeat="num in numPages"><a ng-click="moveToPage(num)" ng-class="{pageActive: isActive(num)}">{{num}}</a></li>

Answer №1

After some searching, I managed to discover the solution:

<account-pagination pagination-config="paginationConfig" on-change="pageChanged">
</account-pagination>

scope: {
      paginationConfig: '=',
      onChange: '=',
    }

$scope.pageChanged = function(page) {
    console.log(page);
}

$scope.moveToPage = function(numPage) {
    $scope.currentPage = numPage;
    $scope.onChange(numPage);
 }

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