AngularJS: require with bindToController, required controller is not available? -

i have directive user require , bindtocontroller in definition.

(function(){     'use strict';      angular.module('core')         .directive('formvalidationmanager', formvalidationmanager);      function formvalidationmanager() {         return {             require: {                 formctrl: 'form'             },             restrict: 'a',             controller: 'formvalidationmanagerctrl fvmctrl',             priority: -1,             bindtocontroller: true         };     } }()); 

according angular docs:

if require property object , bindtocontroller truthy, required controllers bound controller using keys of require property. binding occurs after controllers have been constructed before $oninit called. see $compileprovider helper example of how can used.

so expect in controller:

(function () {     'use strict';      angular         .module('core')         .controller('formvalidationmanagerctrl', formvalidationmanagerctrl);      formvalidationmanagerctrl.$inject = ['$timeout', '$scope'];      function formvalidationmanagerctrl($timeout, $scope) {         var vm = this;          vm.api = {             validate: validate         };          //vm.$oninit = activate;          function activate() {         }          function validate() {             $scope.$broadcast('fvm.validating');             var firstinvalidfield = true;             object.keys(vm.formctrl).foreach(function (key) {                 var prop = vm.formctrl[key];                 if (prop && prop.hasownproperty('$settouched') && prop.$invalid) {                     prop.$settouched();                      if (firstinvalidfield) {                         $timeout(function(){                             var el = $('[name="' + prop.$name + '"]')[0];                             el.scrollintoview();                         }, 0);                         firstinvalidfield = false;                     }                 }             });             return firstinvalidfield;         }     } })(); 

vm.formctrl populated form controller. however, undefined. why undefined? additionally, tried access in $oninit function $oninit function never got called. doing wrong?

i using directive so:

<form novalidate name="edituserform" form-validation-manager> 

i'm not sure if issue, think directive declaration should this:

controller: 'formvalidationmanagerctrl', controlleras: 'vm', 

rather than:

controller: 'formvalidationmanagerctrl fvmctrl',