如何在指令链接函数中使用从控制器传递的滤波器

Question

I have a filter that i would like to use inside a directive. I have a simple filter which works fine inside ng-repeat directive I am not quite sure how exactly I can apply inside directive link function. I wrote below directive, taking the filter as a function, is this correct approach, how can i do it this way? or is there better way of doing it?

JavaScript

myApp.directive('repeatDirective', ['$filter', function($filter) {
    return {
        scope: {
            'filter': '&?',
            'itemList': '='
        },
        template: "<div ng-repeat='item in itemList'>{{item .name}}</div>",
        link: function (scope,element,attrs, ngModelCtrl) {
           **// how to  filter itemList here???**
        }
    };
}]);

filter

$rootScope.collectionFilter= function (transType) {
if($scope.formData_EventDetails.actualPotential){
    if($scope.formData_EventDetails.actualPotential=='NM'){
        //console.log(transType.tranTypeName.indexOf('Near Miss'));

        return transType.tranTypeName.indexOf('Near Miss') >=0 ;
    }
    else{
        return transType.tranTypeName.indexOf('Near Miss') <0 ;
    }
}
return true;
};

HTML

<repeat-directive item-list="someObjectCollection" filter="collectionFilter()">
</repeat-directive>

Answer 1

Define your filter with Angular's register filter method, then use as you would use built-in filters. Let me know if you have questions.

Filter:

myApp.filter('collectionFilter', function(){
  return function(input){
    return input ? 'true : 'false';
  };
});