Adding optgroups in angularjs is proving tricky

user54600 picture user54600 · Jul 17, 2014 · Viewed 13.1k times · Source

I'm using angularjs, and I've been trying to create an optgroup for the past 2 days while working on some other stuff, and I'm stumped. I had to create an ng-options, but didn't consider an optgroup until I realized I needed one. I tried using the ng-options to add it in, but it would either ignore it completely, mess up the code or ignore the options completely.

I had no clue if I could actually use the (double) ampersand, so I tried combining both ng-options, but to no avail. Furthermore, I toyed around with a specific code found in odetocode (which seemed promising, but could not be incorporated with my code, because of its own limited structure).

Everything I tried breaks my code. The original code is below (the one prior to most of my many other mods), but I also have the plunker for it:

http://plnkr.co/edit/xCLe2GFShUMUlIySPLH9?p=info

HTML

<!DOCTYPE html>
<html ng-app="myApp">

  <head>
    <link rel="stylesheet" href="style.css">
    <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.js"></script>
    <script src="script.js"></script>
  </head>

  <body>


  <form name="FORM" ng-controller="appController">
<the-ratings  model="review.ratings">         
</the-ratings>
</form>

  </body>

</html>

JS

(function(){

var app = angular.module('myApp',[]);

app.controller('appController', ['$scope', function($scope) {
      $scope.review = {};
      $scope.review.ratings = '5 stars';
  }])
  app.directive('theRatings', function() {

    return {
      restrict: 'E',
      scope: { model: '=' },
      template: '<select ng-model="model" ng-options="option.name as option.value for option in options"></select>',
      controller: function($scope) {
        $scope.options = [
            { name:'test', namegroup: 'Rate the product', value:'test2',valueName: 'NA' },
            { name: '1 star', value: '1 star' }, 
            { name: '2 stars', value: '2 stars' }, 
            { name: '3 stars', value: '3 stars' },
            { name: '4 stars', value: '4 stars' },
            { name: '5 stars', value: '5 stars' }
        ];
      }

    };
  });


})();

Answer

charlietfl picture charlietfl · Jul 17, 2014

Not sure what you want to group them by so I added an extra property type:

Syntax:

ng-options="option.name as option.value group by option.type for option in options"

DEMO