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-rw-r--r--system/libraries/Cache/Cache.php42
-rw-r--r--system/libraries/Cache/drivers/Cache_file.php8
-rw-r--r--system/libraries/Cache/drivers/Cache_memcached.php6
3 files changed, 27 insertions, 29 deletions
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
index 0493d5a6e..53f9f81a7 100644
--- a/system/libraries/Cache/Cache.php
+++ b/system/libraries/Cache/Cache.php
@@ -55,20 +55,20 @@ class CI_Cache extends CI_Driver_Library {
* @var string
*/
protected $_cache_path = NULL;
-
+
/**
* Reference to the driver
*
* @var mixed
*/
protected $_adapter = 'dummy';
-
+
/**
* Fallback driver
*
* @param string
*/
- protected $_backup_driver;
+ protected $_backup_driver = 'dummy';
/**
* Constructor
@@ -102,6 +102,22 @@ class CI_Cache extends CI_Driver_Library {
$this->_backup_driver = $config['backup'];
}
}
+
+ // If the specified adapter isn't available, check the backup.
+ if ( ! $this->is_supported($this->_adapter))
+ {
+ if ( ! $this->is_supported($this->_backup_driver))
+ {
+ // Backup isn't supported either. Default to 'Dummy' driver.
+ log_message('error', 'Cache adapter "'.$this->_adapter.'" and backup "'.$this->_backup_driver.'" are both unavailable. Cache is now using "Dummy" adapter.');
+ $this->_adapter = 'dummy';
+ }
+ else
+ {
+ // Backup is supported. Set it to primary.
+ $this->_adapter = $this->_backup_driver;
+ }
+ }
}
// ------------------------------------------------------------------------
@@ -206,26 +222,6 @@ class CI_Cache extends CI_Driver_Library {
return $support[$driver];
}
- // ------------------------------------------------------------------------
-
- /**
- * __get()
- *
- * @param child
- * @return object
- */
- public function __get($child)
- {
- $obj = parent::__get($child);
-
- if ( ! $this->is_supported($child))
- {
- $this->_adapter = $this->_backup_driver;
- }
-
- return $obj;
- }
-
}
/* End of file Cache.php */
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php
index ec4195278..5170de821 100644
--- a/system/libraries/Cache/drivers/Cache_file.php
+++ b/system/libraries/Cache/drivers/Cache_file.php
@@ -45,13 +45,15 @@ class CI_Cache_file extends CI_Driver {
/**
* Initialize file-based cache
+ *
+ * @return void
*/
public function __construct()
{
$CI =& get_instance();
$CI->load->helper('file');
$path = $CI->config->item('cache_path');
- $this->_cache_path = ($path == '') ? APPPATH.'cache/' : $path;
+ $this->_cache_path = ($path === '') ? APPPATH.'cache/' : $path;
}
// ------------------------------------------------------------------------
@@ -69,7 +71,7 @@ class CI_Cache_file extends CI_Driver {
return FALSE;
}
- $data = unserialize(read_file($this->_cache_path.$id));
+ $data = unserialize(file_get_contents($this->_cache_path.$id));
if (time() > $data['time'] + $data['ttl'])
{
@@ -163,7 +165,7 @@ class CI_Cache_file extends CI_Driver {
return FALSE;
}
- $data = unserialize(read_file($this->_cache_path.$id));
+ $data = unserialize(file_get_contents($this->_cache_path.$id));
if (is_array($data))
{
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index 813df4b1c..bf90f6197 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -77,7 +77,7 @@ class CI_Cache_memcached extends CI_Driver {
* @param string unique identifier
* @param mixed data being cached
* @param int time to live
- * @return bool true on success, false on failure
+ * @return bool true on success, false on failure
*/
public function save($id, $data, $ttl = 60)
{
@@ -99,7 +99,7 @@ class CI_Cache_memcached extends CI_Driver {
* Delete from Cache
*
* @param mixed key to be deleted.
- * @return bool true on success, false on failure
+ * @return bool true on success, false on failure
*/
public function delete($id)
{
@@ -212,7 +212,7 @@ class CI_Cache_memcached extends CI_Driver {
$cache_server['weight'] = $this->_memcache_conf['default']['default_weight'];
}
- if (get_class($this->_memcached) == 'Memcache')
+ if (get_class($this->_memcached) === 'Memcache')
{
// Third parameter is persistance and defaults to TRUE.
$this->_memcached->addServer(