1: <?php namespace Laravel\Cache\Drivers;
  2: 
  3: class Redis extends Driver {
  4: 
  5:     /**
  6:      * The Redis database instance.
  7:      *
  8:      * @var Laravel\Redis
  9:      */
 10:     protected $redis;
 11: 
 12:     /**
 13:      * Create a new Redis cache driver instance.
 14:      *
 15:      * @param  Laravel\Redis  $redis
 16:      * @return void
 17:      */
 18:     public function __construct(\Laravel\Redis $redis)
 19:     {
 20:         $this->redis = $redis;
 21:     }
 22: 
 23:     /**
 24:      * Determine if an item exists in the cache.
 25:      *
 26:      * @param  string  $key
 27:      * @return bool
 28:      */
 29:     public function has($key)
 30:     {
 31:         return ( ! is_null($this->redis->get($key)));
 32:     }
 33: 
 34:     /**
 35:      * Retrieve an item from the cache driver.
 36:      *
 37:      * @param  string  $key
 38:      * @return mixed
 39:      */
 40:     protected function retrieve($key)
 41:     {
 42:         if ( ! is_null($cache = $this->redis->get($key)))
 43:         {
 44:             return unserialize($cache);
 45:         }
 46:     }
 47: 
 48:     /**
 49:      * Write an item to the cache for a given number of minutes.
 50:      *
 51:      * <code>
 52:      *      // Put an item in the cache for 15 minutes
 53:      *      Cache::put('name', 'Taylor', 15);
 54:      * </code>
 55:      *
 56:      * @param  string  $key
 57:      * @param  mixed   $value
 58:      * @param  int     $minutes
 59:      * @return void
 60:      */
 61:     public function put($key, $value, $minutes)
 62:     {
 63:         $this->forever($key, $value);
 64: 
 65:         $this->redis->expire($key, $minutes * 60);
 66:     }
 67: 
 68:     /**
 69:      * Write an item to the cache that lasts forever.
 70:      *
 71:      * @param  string  $key
 72:      * @param  mixed   $value
 73:      * @return void
 74:      */
 75:     public function forever($key, $value)
 76:     {
 77:         $this->redis->set($key, serialize($value));
 78:     }
 79: 
 80:     /**
 81:      * Delete an item from the cache.
 82:      *
 83:      * @param  string  $key
 84:      * @return void
 85:      */
 86:     public function forget($key)
 87:     {
 88:         $this->redis->del($key);
 89:     }
 90: 
 91:     /**
 92:      * Flush the entire cache.
 93:      *
 94:      * @return void
 95:      */
 96:     public function flush()
 97:     {
 98:         $this->redis->flushdb();
 99:     }
100: 
101: }
102: