Add Redis Cache driver

app/config/config.toml.example

@@ -14,7 +14,7 @@ show_anime_collection = true
 # do you wish to show the manga collection?
 show_manga_collection = false
 
-# cache driver for api calls (SQLDriver, RedisDriver, MemcacheDriver)
+# cache driver for api calls (SQLDriver, RedisDriver)
 cache_driver = SQLDriver
 
 # path to public directory on the server

app/config/redis.toml.example

@@ -0,0 +1,15 @@
+################################################################################
+#                         Redis Cache Configuration                            #
+################################################################################
+
+# Host or socket to connect to
+host = "127.0.0.1"
+
+# Connection port
+#port = 6379
+
+# Connection password
+#password = ""
+
+# Database number
+database = 13

src/Aviat/AnimeClient/Model/AnimeCollection.php

@@ -55,10 +55,11 @@ class AnimeCollection extends DB {
 
 		// Is database valid? If not, set a flag so the
 		// app can be run without a valid database
-		$db_file_name = $this->db_config['collection']['file'];
+		if ($this->db_config['collection']['type'] === 'sqlite')
-		if ($db_file_name !== ':memory:')
 		{
-			if (file_exists($db_file_name))
+			$db_file_name = $this->db_config['collection']['file'];
+
+			if ($db_file_name !== ':memory:' && file_exists($db_file_name))
 			{
 				$db_file = file_get_contents($db_file_name);
 				$this->valid_database = (strpos($db_file, 'SQLite format 3') === 0);

src/Aviat/Ion/Cache/Driver/RedisDriver.php

@@ -0,0 +1,108 @@
+<?php
+/**
+ * Ion
+ *
+ * Building blocks for web development
+ *
+ * @package	 Ion
+ * @author	  Timothy J. Warren
+ * @copyright   Copyright (c) 2015 - 2016
+ * @license	 MIT
+ */
+
+namespace Aviat\Ion\Cache\Driver;
+
+use Aviat\Ion\Di\ContainerInterface;
+
+class RedisDriver implements \Aviat\Ion\Cache\CacheDriverInterface {
+	
+	/**
+	 * The redis extension class instance
+	 * #var Redis
+	 */
+	protected $redis;
+	
+	/**
+	 * Create the Redis cache driver
+	 */
+	public function __construct(ContainerInterface $container)
+	{
+		$config = $container->get('config');
+		$redisConfig = $config->get('redis');
+		
+		$this->redis = new \Redis();
+		
+		(array_key_exists('port', $redisConfig))
+			? $this->redis->pconnect($redisConfig['host'], $redisConfig['port'])
+			: $this->redis->pconnect($redisConfig['host']);
+		
+		// If there is a password, authorize
+		if (array_key_exists('password', $redisConfig))
+		{
+			$this->redis->auth($redisConfig['password']);
+		}
+		
+		// If there is a database selected, connect to the specified database
+		if (array_key_exists('database', $redisConfig))
+		{
+			$this->redis->select($redisConfig['database']);
+		}
+		
+		$this->redis->setOption(\Redis::OPT_SERIALIZER, \Redis::SERIALIZER_PHP);
+	}
+	
+	/**
+	 * Destructor to disconnect from redis
+	 */
+	public function __destruct()
+	{
+		$this->redis->close();
+	}
+	
+	/**
+	 * Retreive a value from the cache backend
+	 *
+	 * @param string $key
+	 * @return mixed
+	 */
+	public function get($key)
+	{
+		return $this->redis->get($key);
+	}
+	
+	/**
+	 * Set a cached value
+	 *
+	 * @param string $key
+	 * @param mixed $value
+	 * @return CacheDriverInterface
+	 */
+	public function set($key, $value)
+	{
+		$this->redis->set($key, $value);
+		return $this;
+	}
+	
+	/**
+	 * Invalidate a cached value
+	 *
+	 * @param string $key
+	 * @return CacheDriverInterface
+	 */
+	public function invalidate($key)
+	{
+		$this->redis->del($key);
+		return $this;
+	}
+	
+	/**
+	 * Clear the contents of the cache
+	 *
+	 * @return void
+	 */
+	public function invalidateAll()
+	{
+		$this->redis->flushDB();
+	}
+}
+// End of RedisDriver.php

src/Aviat/Ion/Cache/Driver/SQLDriver.php

@@ -72,14 +72,7 @@ class SQLDriver extends DB implements \Aviat\Ion\Cache\CacheDriverInterface  {
 			'value' => serialize($value),
 		]);
 		
-		/*if ( ! empty($this->get($key)))
-		{
-			$this->db->update('cache');
-		}
-		else*/
-		{
 		$this->db->insert('cache');
-		}
 
 		return $this;
 	}

tests/AnimeClient_TestCase.php

@@ -71,6 +71,10 @@ class AnimeClient_TestCase extends PHPUnit_Framework_TestCase {
 				'routes' => [
 
 				]
+			],
+			'redis' => [
+				'host' => 'localhost',
+				'database' => 13
 			]
 		];
 

tests/Ion/Cache/Driver/RedisDriverTest.php

@@ -0,0 +1,18 @@
+<?php
+
+require_once('CacheDriverBase.php');
+
+use Aviat\Ion\Friend;
+use Aviat\Ion\Cache\Driver\RedisDriver;
+
+class CacheRedisDriverTest extends AnimeClient_TestCase {
+	use CacheDriverBase;
+	
+	protected $driver;
+	
+	public function setUp()
+	{
+		parent::setUp();
+		$this->driver = new RedisDriver($this->container);
+	}
+}

tests/Ion/Cache/Driver/SQLDriverTest.php

@@ -1,6 +1,6 @@
 <?php
 
-require('CacheDriverBase.php');
+require_once('CacheDriverBase.php');
 
 use Aviat\Ion\Friend;
 use Aviat\Ion\Cache\Driver\SQLDriver;