how to call a function from module dependency (another module)

Question

I want to create seperate module for pagination, because I will need it to reuse in different modules, but I don't know how to call a function from module dependency (another module)

Here is my main module:

var App = angular.module('search', ['pagination']);

App.controller('MainController', ['$scope', '$pagination' function($scope, $pagination) {
    $scope.testFunction(); //function from pagination module controller
}])

Here is my pagination module:

var App = angular.module('pagination', []);

App.controller('PaginationController', ['$scope', function($scope) {
    $scope.testFunction = function(){
        console.log("pagination module");
    }
}])

I get error:

Error: [$injector:unpr] Unknown provider: $paginationProvider <- $pagination

Answer 1

To share resources across two modules, declare a factory or a service.

Suppose you have a search module:

//you inject your pagination module here
var searchModule = angular.module('search', ['pagination']);

//and you ALSO need to inject your pagination's service into your controller
searchModule.controller('MainController', ['$scope', 'paginationSvc' function($scope, paginationSvc) {
  //function from pagination module controller
  paginationSvc.testFunction();
}])

And your pagination module:

var pagination = angular.module('pagination', []);

//declare your pagination service here
pagination.factory('PaginationSvc', [function(){
 return {
   testFunction:testFunction
 };
 function testFunction(){
   console.log('This is from pagination module');
}
}])

Maybe a little plnkr will help :D