如何在初始化页面上加载angularjs自定义指令函数

Question

angular.module('gdsApp').directive('modalDialog', function($http,$location) {
      return {
        restrict: 'E',
        scope: {
          show: '=',      
          selectFn: '&callbackFn'
        },
        transclude: true, // Insert custom content inside the directive
        link: function(scope, element, attrs) {
            $http.defaults.headers.post["Content-Type"] = "application/x-www-form-urlencoded";
            scope.init = function () {
                alert(' inii');
            };
            var urlBase=$location.absUrl().split('/#/')[0]; 
            scope.showLookUpTable = false;

            scope.hideSearchResults = function() {
                scope.showLookUpTable = false;
            };     

        },
        templateUrl: 'pages/LookUpModal.html'
      };
    });

<div class='ng-modal' ng-show='show'>
  <div class='ng-modal-overlay'></div>
  <div class='ng-modal-dialog' ng-style='dialogStyle'
       ng-init="hideSearchResults()">
   <div class='ng-modal-dialog-content'>

      <div class="col-md-12">     
        <h3>Organisation Name Lookup</h3>       
        <hr style="border-top:1px solid darkblue"/>
      </div>      
</div>

嗨， 我有ng-init个功能ng-init=hideSearchResults()。但是在加载html页面时函数没有调用。如何在加载时从html页面的自定义指令中调用函数。请帮帮我。