console command to flush cache

framework/console/Application.php

@@ -127,6 +127,7 @@ class Application extends \yii\base\Application
 			'help' => 'yii\console\controllers\HelpController',
 			'migrate' => 'yii\console\controllers\MigrateController',
 			'app' => 'yii\console\controllers\CreateController',
+			'cache' => 'yii\console\controllers\CacheController',
 		);
 	}
 

framework/console/controllers/CacheController.php

@@ -0,0 +1,49 @@
+<?php
+/**
+ * CacheController class file.
+ *
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright &copy; 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\console\controllers;
+
+use yii\console\Controller;
+use yii\console\Exception;
+use yii\caching\Cache;
+
+/**
+ * This command allows you to flush cache.
+ *
+ * @author Alexander Makarov <sam@rmcreative.ru>
+ * @since 2.0
+ */
+class CacheController extends Controller
+{
+	public function actionIndex()
+	{
+		$this->forward('help/index', array('-args' => array('cache/flush')));
+	}
+
+	/**
+	 * Flushes cache.
+	 * @param string $component Name of the cache application component to use.
+	 *
+	 * @throws \yii\console\Exception
+	 */
+	public function actionFlush($component = 'cache')
+	{
+		/** @var $cache Cache */
+		$cache = \Yii::$app->getComponent($component);
+		if(!$cache || !$cache instanceof Cache) {
+			throw new Exception('Application component "'.$component.'" is not defined or not a cache.');
+		}
+
+		if(!$cache->flush()) {
+			throw new Exception('Unable to flush cache.');
+		}
+
+		echo "\nDone.\n";
+	}
+}

todo.md

@@ -13,8 +13,7 @@
 	* ProfileTarget (TBD after web is in place): should consider using javascript and make it into a toolbar
 	* unit tests
 - caching
-	* a console command to clear cached data
-	* unit tests
+	* backend-specific unit tests
 - validators
 	* FileValidator: depends on CUploadedFile
 	* CaptchaValidator: depends on CaptchaAction