From 0a604bdb90e9dff9399bae0fb4941fe46cc7e9f9 Mon Sep 17 00:00:00 2001 From: Kenneth R. Culp Date: Tue, 26 Apr 2011 09:54:08 -0700 Subject: Tutorial files for your perusal. --- docs/tutorial.step_9.ngdoc | 95 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100755 docs/tutorial.step_9.ngdoc (limited to 'docs/tutorial.step_9.ngdoc') diff --git a/docs/tutorial.step_9.ngdoc b/docs/tutorial.step_9.ngdoc new file mode 100755 index 00000000..9fcf095d --- /dev/null +++ b/docs/tutorial.step_9.ngdoc @@ -0,0 +1,95 @@ +@workInProgress +@ngdoc overview +@name Tutorial: Step 9 +@description + + + + + + + + +
{@link tutorial.step_8 Previous}{@link http://angular.github.com/angular-phonecat/step-9/app Example}{@link tutorial Tutorial Home}{@link +https://github.com/angular/angular-phonecat/commit/975d173ad0768487852387497c086f3c93fb48f6 Code +Diff}{@link tutorial.step_10 Next}
+ +In this step, we have determined that the built-in angular display filters ({@link +angular.filter.number number}, {@link angular.filter.currency currency}, {@link +angular.filter.date date}, etc.) do not handle what we want to do, and so we get to create our own +custom {@link angular.filter filter}. + +In the previous step, the details page displayed either "true" or "false" to indicate whether +certain phone features were present or not. Our custom "checkmark" filter replaces those text +strings with images: ✓ for "true", and ✘ for "false". + +Our filter code lives in `app/js/filters.js`: + +__`app/index.html`.__ +
+...
+ 
+...
+
+ +In the phone details template, we employ our filter for angular expressions whose values are +"true" or "false"; `{{ [phone_feature] | checkmark }}`: + +__`app/partials/phone-detail.html`.__ +
+
+

{{phone.name}}

+

{{phone.description}}

+... + +
+ +__`app/js/filters.js`.__ (New) +
+/* http://docs.angularjs.org/#!angular.filter */
+
+angular.filter('checkmark', function(input) {
+  return input ? '\u2713' : '\u2718';
+});
+
+ + +## Discussion: + +This example shows how easy it is to roll your own filters for displaying data. As explained in +the "Writing your own Filters" section of the {@link angular.filter angular.filter} page, you +simply add your filter function on to the `angular.filter` object. + +In this example, our filter name is "checkmark"; our input is either "true" or "false", and we +return one of two unicode characters we have chosen to represent true or false (`\u2713` and +`\u2718`). + + + + + + + + + +
{@link tutorial.step_8 Previous}{@link http://angular.github.com/angular-phonecat/step-9/app Example}{@link tutorial Tutorial Home}{@link +https://github.com/angular/angular-phonecat/commit/975d173ad0768487852387497c086f3c93fb48f6 Code +Diff}{@link tutorial.step_10 Next}
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