Angularjs | how to get an attribute value from element in which controller is defined

Question

I'm still fighting with simple things in Angular. I have jQuery and Backbonejs background, so please do not yell on me. I try hard to understand differences

I have HTML in which from rails is given ID of project as data-project-id:

<div data-ng-controller="ProjectCtrl as ctrl" data-project-id="1" id="project_configuration">

Is there any chance to get access to this attribute? I need it to my API calls...

Answer 1

To access an elements attributes from a controller, inject $attrs into your controller function:

HTML

<div test="hello world" ng-controller="ctrl">
</div>

Script

app.controller('ctrl', function($attrs) {
  alert($attrs.test); // alerts 'hello world'
});

In your example, if you want to get data-project-id:

$attrs.projectId

Or if you want to get id:

$attrs.id

Demo:

var app = angular.module('app',[]);
app.controller('ctrl', function($attrs) {
  alert($attrs.test);
});

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="ctrl" test="hello world">
  
</div>