fix cannot use backup driver

bailu · bailu · commit 44a00f18fc50 · 2014-11-21T01:06:00.000+08:00
$ci = &amp;get_instance();
$ci-&gt;load-&gt;driver('cache', array('adapter' =&gt; 'memcached', 'backup' =&gt; 'file'));

$ci-&gt;cache-&gt;get('cache_key');  // if the Memcached(Memcache) Extension does not exist, it will not work.
// Fatal error:  Call to a member function get() on a non-object in .../system/libraries/Cache/drivers/Cache_memcached.php on line 50
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
@@ -203,6 +203,7 @@ public function __get($child)
 		if ( ! $this->is_supported($child))
 		{
 			$this->_adapter = $this->_backup_driver;
+			$obj = parent::__get($this->_adapter);
 		}
 
 		return $obj;
@@ -211,4 +212,4 @@ public function __get($child)
 }
 
 /* End of file Cache.php */
-/* Location: ./system/libraries/Cache/Cache.php */
+/* Location: ./system/libraries/Cache/Cache.php */

Original file line number	Diff line number	Diff line change
`@@ -203,6 +203,7 @@ public function __get($child)`
`203`	`203`	`if ( ! $this->is_supported($child))`
`204`	`204`	`{`
`205`	`205`	`$this->_adapter = $this->_backup_driver;`
	`206`	`+ $obj = parent::__get($this->_adapter);`
`206`	`207`	`}`
`207`	`208`
`208`	`209`	`return $obj;`
`@@ -211,4 +212,4 @@ public function __get($child)`
`211`	`212`	`}`
`212`	`213`
`213`	`214`	`/* End of file Cache.php */`
`214`		`-/* Location: ./system/libraries/Cache/Cache.php */`
	`215`	`+/* Location: ./system/libraries/Cache/Cache.php */`