Yii2 Application Development Cookbook - Third Edition

Working with events

Yii's events provide a simple implementation, which allows you to listen and subscribe to various events that occur in your web-application. For example, you may wish to send a notification about a new article to followers each time you publish new material.

Getting ready

1. Create a new application by using the Composer package manager, as described in the official guide at http://www.yiiframework.com/doc-2.0/guide-start-installation.html.
2. Execute the following SQL code on your server to create the article table:

   CREATE TABLE `article` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `name` varchar(255) DEFAULT NULL,
   `description` TEXT,
   PRIMARY KEY (`id`)
   ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

3. Generate the Article model using Gii.
4. Run your webserver ...