AngularJS : How to pass data from directive to con

2019-03-16 19:37发布

I'm trying to pass some data from directive into a function addTrackFromPicker in my controller.

$scope.addTrackFromPicker = function (message) {
    console.log("addTrackFromPicker", message);
};

Here what I have in my directive

dir.directive('youtubeList', function($http, $timeout, YT_event){
    return {
        restrict: 'E',
        scope: {
            search: '=',
            dial: '&'
        },
        templateUrl: 'youtube-list.html',
...

Here I want to call controllers function from my template and pass it item.id.$t as argument:

<div class="media list-group-item" ng-repeat="item in entries">
<a type="button" ng-click="dial(item.id.$t)">
    <img  ng-src="{{item.media$group.media$thumbnail[0].url}}">
</a>

But I don't know how to pass it into my tag

<youtube-list search="search" dial="addTrackFromPicker(???)"></youtube-list>

I also tried $parent.addTrackFromPicker but it didnt work

2条回答
再贱就再见
2楼-- · 2019-03-16 19:51

In order to pass in your data from your directive, you will need to do it like this:

<youtube-list search="search" dial="addTrackFromPicker(data)"></youtube-list>

Then, in your template:

<div class="media list-group-item" ng-repeat="item in entries">
    <a type="button" ng-click="dial({data: item.id.$t})">
        <img  ng-src="{{item.media$group.media$thumbnail[0].url}}">
    </a>
</div>

You can use an "argument name" other than data if something else makes more sense for your situation. See Angular's documentation on scope for detailed info on how this works.

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3楼-- · 2019-03-16 20:01

Isolated Scope: pass some values from the parent scope to the directives

There’re 3 types of prefixes AngularJS provides

  1. "@" ( Text binding / one-way binding )
  2. "=" ( Direct model binding / two-way binding )
  3. "&" ( Behaviour binding / Method binding )

All these prefixes receives data from the attributes of the directive element.

 class="directive"

 name="{{name}}"

 color="color"

When the directive encounters a prefix in the scope property, it will look for an attribute ( with same property name ) on directive’s html element

 scope : {    
  name: "@"    
 }

I've followed this linkhttp://jsfiddle.net/shidhincr/pJLT8/10/light/

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