Use the official Smarty API way of adding a plugins directory.

Use an array as the default value so that (a) we don't point at
directories that don't exist and (b) we hint to the client
programmer that more than one directory can be added.

This way you can add more than one plugins dir, too, giving you
more flexibility.

Author: bakert

classes/view/smarty.php

@@ -59,7 +59,8 @@ public static function parser()
 		static::$_parser->compile_dir       = \Config::get('parser.View_Smarty.environment.compile_dir', APPPATH.'tmp'.DS.'Smarty'.DS.'templates_c'.DS);
 		static::$_parser->config_dir        = \Config::get('parser.View_Smarty.environment.config_dir', APPPATH.'tmp'.DS.'Smarty'.DS.'configs'.DS);
 		static::$_parser->cache_dir         = \Config::get('parser.View_Smarty.environment.cache_dir', APPPATH.'cache'.DS.'Smarty'.DS);
-		static::$_parser->plugins_dir       = array_merge(static::$_parser->plugins_dir, array(\Config::get('parser.View_Smarty.environment.plugins_dir', APPPATH.'smarty'.DS)));
+		$plugins_dir 						= \Config::get('parser.View_Smarty.environment.plugins_dir', array());
+		static::$_parser->addPluginsDir($plugins_dir);
 
 		static::$_parser->caching           = \Config::get('parser.View_Smarty.environment.caching', false);
 		static::$_parser->cache_lifetime    = \Config::get('parser.View_Smarty.environment.cache_lifetime', 0);

config/parser.php

@@ -138,7 +138,7 @@
 			'compile_dir'       => APPPATH.'tmp'.DS.'Smarty'.DS.'templates_c'.DS,
 			'config_dir'        => APPPATH.'tmp'.DS.'Smarty'.DS.'configs'.DS,
 			'cache_dir'         => APPPATH.'cache'.DS.'Smarty'.DS,
-			'plugins_dir'       => APPPATH.'smarty'.DS,
+			'plugins_dir'       => array(),
 			'caching'           => false,
 			'cache_lifetime'    => 0,
 			'force_compile'     => false,