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| author | Misko Hevery | 2011-04-29 15:18:27 -0700 |
|---|---|---|
| committer | Igor Minar | 2011-06-06 22:28:38 -0700 |
| commit | 11e9572b952e49b01035e956c412d6095533031a (patch) | |
| tree | 04dbf96802f552693d44c541c0d825a2769e3d57 /docs/content/tutorial/step_04.ngdoc | |
| parent | b6bc6c2ddf1ae1523ec7e4cb92db209cd6501181 (diff) | |
| download | angular.js-11e9572b952e49b01035e956c412d6095533031a.tar.bz2 | |
Move documentation under individual headings
Diffstat (limited to 'docs/content/tutorial/step_04.ngdoc')
| -rwxr-xr-x | docs/content/tutorial/step_04.ngdoc | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/docs/content/tutorial/step_04.ngdoc b/docs/content/tutorial/step_04.ngdoc new file mode 100755 index 00000000..0589ba75 --- /dev/null +++ b/docs/content/tutorial/step_04.ngdoc @@ -0,0 +1,161 @@ +@workInProgress
+@ngdoc overview
+@name Tutorial: Step 4
+@description
+<table id="tutorial_nav">
+<tr>
+<td id="previous_step">{@link tutorial.step_03 Previous}</td>
+<td id="step_result">{@link http://angular.github.com/angular-phonecat/step-4/app Example}</td>
+<td id="tut_home">{@link tutorial Tutorial Home}</td>
+<td id="code_diff">{@link https://github.com/angular/angular-phonecat/compare/step-3...step-4 Code
+Diff}</td>
+<td id="next_step">{@link tutorial.step_05 Next}</td>
+</tr>
+</table>
+
+In this step, we add a feature that lets our users choose which way to order the phone list.
+
+__`app/index.html`:__
+<pre>
+...
+ <ul class="predicates">
+ <li>
+ Search: <input type="text" name="query"/>
+ </li>
+ <li>
+ Sort by:
+ <select name="orderProp">
+ <option value="name">Alphabetical</option>
+ <option value="age">Newest</option>
+ </select>
+ </li>
+ </ul>
+
+ <ul class="phones">
+ <li ng:repeat="phone in phones.$filter(query).$orderBy(orderProp)">
+ {{phone.name}}
+ <p>{{phone.snippet}}</p>
+ </li>
+ </ul>
+...
+</pre>
+
+__`app/js/controller.js`:__
+<pre>
+/* App Controllers */
+
+function PhoneListCtrl() {
+ this.phones = [{"name": "Nexus S",
+ "snippet": "Fast just got faster with Nexus S.",
+ "age": 0},
+ {"name": "Motorola XOOM™ with Wi-Fi",
+ "snippet": "The Next, Next Generation tablet.",
+ "age": 1},
+ {"name": "MOTOROLA XOOM™",
+ "snippet": "The Next, Next Generation tablet.",
+ "age": 2}];
+
+ this.orderProp = 'age';
+}
+</pre>
+
+__`test/unit/controllerSpec.js`:__
+<pre>
+/* jasmine specs for controllers go here */
+describe('PhoneCat controllers', function() {
+
+ describe('PhoneListCtrl', function(){
+ var scope, $browser, ctrl;
+
+ beforeEach(function() {
+ ctrl = new PhoneListCtrl();
+ });
+
+
+ it('should create "phones" model with 3 phones', function() {
+ expect(ctrl.phones.length).toBe(3);
+ });
+
+
+ it('should set the default value of orderProp model', function() {
+ expect(ctrl.orderProp).toBe('age');
+ });
+ });
+});
+</pre>
+
+__`test/e2e/scenarios.js`:__
+<pre>
+/* jasmine-like end2end tests go here */
+describe('PhoneCat App', function() {
+
+ describe('Phone list view', function() {
+
+ beforeEach(function() {
+ browser().navigateTo('../../app/index.html');
+ });
+
+
+ it('should filter the phone list as user types into the search box', function() {
+ expect(repeater('.phones li').count()).toBe(3);
+
+ input('query').enter('nexus');
+ expect(repeater('.phones li').count()).toBe(1);
+
+ input('query').enter('motorola');
+ expect(repeater('.phones li').count()).toBe(2);
+ });
+
+
+ it('should be possible to control phone order via the drop down select box', function() {
+ input('query').enter('tablet'); //let's narrow the dataset to make the test assertions
+ shorter
+
+ expect(repeater('.phones li', 'Phone List').column('a')).
+ toEqual(["Motorola XOOM\u2122 with Wi-Fi",
+ "MOTOROLA XOOM\u2122"]);
+
+ select('orderProp').option('alphabetical');
+
+ expect(repeater('.phones li', 'Phone List').column('a')).
+ toEqual(["MOTOROLA XOOM\u2122",
+ "Motorola XOOM\u2122 with Wi-Fi"]);
+ });
+ });
+});
+</pre>
+
+## Discussion:
+
+To provide dynamic ordering, we employ another one of angular's "array type augmenters" and let
+the data binding do the rest of the work for us:
+
+* First, we provide a `<select>` element named `orderProp` for our users so they can choose to
+sort the phone list either alphabetically or by the age of the phone. We added the `age` property
+to each phone record so we can sort by that field.
+
+* Like {@link angular.Array.filter $filter}, {@link angular.Array.orderBy $orderBy} is a built-in
+method available on array objects in angular expressions. In our UI template, we set up a select
+box that lets the user set the `orderProp` model variable to one of the string constants: `age` or
+`name`.
+
+* In our controller, we added a line to set the default value of `orderProp` to `age`. If we
+don't override the default value, angular uses the value of the first `<option>` element when it
+initializes the data model.
+
+* Our unit test now verifies that our default ordering property is set.
+
+* We added an end-to-end test to verify that our select box ordering mechanism works properly.
+
+* Once again we added a little more CSS to improve the View.
+
+<table id="tutorial_nav">
+<tr>
+<td id="previous_step">{@link tutorial.step_03 Previous}</td>
+<td id="step_result">{@link http://angular.github.com/angular-phonecat/step-4/app Example}</td>
+<td id="tut_home">{@link tutorial Tutorial Home}</td>
+<td id="code_diff">{@link https://github.com/angular/angular-phonecat/compare/step-3...step-4 Code
+Diff}</td>
+<td id="next_step">{@link tutorial.step_05 Next}</td>
+</tr>
+</table>
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