[AngularJS]9. Panel Controller

We just learned, cramming a bunch of logic into our HTML is kinda bad. Let's start the Right Way with a Controller which will control our tabs.

1. Create a controller named TabController.

app.controller('TabController', function(){});

 

2. An empty Controller isn't much use. Do you remember why we needed a Controller at all? That's right, we need to initialize the tab property. Go ahead and add that property now, setting it to 1.

  app.controller('TabController', function(){
      this.tab = 1;
  });

 

3. In order to set the current tab, we'll need a setTab method to use in our HTML. It should set the tab property of TabController to a value passed in.

  app.controller('TabController', function(){
      this.tab = 1;
    
    this.setTab = function(set_tab){
        this.tab = set_tab;
    };
  });

 

4. We've got a setTab method, now we need an isSet method that accepts a value and indicates whether that value matches the tabparameter.

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  app.controller('TabController', function(){
      this.tab = 1;
    
    this.setTab = function(set_tab){
        this.tab = set_tab;
    };
    
    this.isSet = function(set_tab){
        return this.tab === set_tab;
    };
  });
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<!DOCTYPE html>
<html ng-app="gemStore">
  <head>
    <base href='http://courseware.codeschool.com/shaping-up-with-angular-js/' />
    <link rel="stylesheet" type="text/css" href="bootstrap.min.css" />
    <script type="text/javascript" src="angular.min.js"></script>
    <script type="text/javascript" src="app.js"></script>
  </head>
  <body ng-controller="StoreController as store">

    <!--  Products Container  -->
    <div class="list-group">
      <!--  Product Container  -->
      <div class="list-group-item" ng-repeat="product in store.products">
        <h3>
          {{product.name}}
          <em class="pull-right">{{product.price | currency}}</em>
        </h3>

        <!-- Image Gallery  -->
        <div ng-show="product.images.length">
        <!-- Fail 1 Message -->
        <div ng-show="product.images"> -->
          <img class="img img-circle img-thumbnail center-block" ng-src="{{product.images[0]}}" />
          <ul class="clearfix">
            <li class="small-image pull-left thumbnail" ng-repeat="image in product.images"> <img ng-src="{{image}}" /> </li>
          </ul>
        </div>

      </div>
    </div>
  </body>
</html>
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(function() {
  var app = angular.module('gemStore', []);

  app.controller('StoreController', function(){
    this.products = gems;
  });

  app.controller('TabController', function(){
      this.tab = 1;
    
    this.setTab = function(set_tab){
        this.tab = set_tab;
    };
    
    this.isSet = function(set_tab){
        return this.tab === set_tab;
    };
  });
  var gems = [
      {
        name: 'Azurite',
        description: "Some gems have hidden qualities beyond their luster, beyond their shine... Azurite is one of those gems.",
        shine: 8,
        price: 110.50,
        rarity: 7,
        color: '#CCC',
        faces: 14,
        images: [
          "images/gem-02.gif",
          "images/gem-05.gif",
          "images/gem-09.gif"
        ],
        reviews: [{
          stars: 5,
          body: "I love this gem!",
          author: "joe@example.org",
          createdOn: 1397490980837
        }, {
          stars: 1,
          body: "This gem sucks.",
          author: "tim@example.org",
          createdOn: 1397490980837
        }]
      },
      {
        name: 'Bloodstone',
        description: "Origin of the Bloodstone is unknown, hence its low value. It has a very high shine and 12 sides, however.",
        shine: 9,
        price: 22.90,
        rarity: 6,
        color: '#EEE',
        faces: 12,
        images: [
          "images/gem-01.gif",
          "images/gem-03.gif",
          "images/gem-04.gif",
        ],
        reviews: [{
          stars: 3,
          body: "I think this gem was just OK, could honestly use more shine, IMO.",
          author: "JimmyDean@example.org",
          createdOn: 1397490980837
        }, {
          stars: 4,
          body: "Any gem with 12 faces is for me!",
          author: "gemsRock@example.org",
          createdOn: 1397490980837
        }]
      },
      {
        name: 'Zircon',
        description: "Zircon is our most coveted and sought after gem. You will pay much to be the proud owner of this gorgeous and high shine gem.",
        shine: 70,
        price: 1100,
        rarity: 2,
        color: '#000',
        faces: 6,
        images: [
          "images/gem-06.gif",
          "images/gem-07.gif",
          "images/gem-09.gif"
        ],
        reviews: [{
          stars: 1,
          body: "This gem is WAY too expensive for its rarity value.",
          author: "turtleguyy@example.org",
          createdOn: 1397490980837
        }, {
          stars: 1,
          body: "BBW: High Shine != High Quality.",
          author: "LouisW407@example.org",
          createdOn: 1397490980837
        }, {
          stars: 1,
          body: "Don't waste your rubles!",
          author: "nat@example.org",
          createdOn: 1397490980837
        }]
      }
    ];
})();
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