diff options
Diffstat (limited to 'kohana/libraries/drivers/Database/Mysql.php')
| -rw-r--r-- | kohana/libraries/drivers/Database/Mysql.php | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/kohana/libraries/drivers/Database/Mysql.php b/kohana/libraries/drivers/Database/Mysql.php index 461bda90..c24dfec3 100644 --- a/kohana/libraries/drivers/Database/Mysql.php +++ b/kohana/libraries/drivers/Database/Mysql.php @@ -22,6 +22,12 @@ class Database_Mysql_Driver extends Database_Driver { protected $db_config; /** + * Performance caches. + */ + private $tables_cache; + private $fields_cache; + + /** * Sets the config for the class. * * @param array database configuration @@ -29,6 +35,8 @@ class Database_Mysql_Driver extends Database_Driver { public function __construct($config) { $this->db_config = $config; + $this->tables_cache = array(); + $this->fields_cache = array(); Kohana::log('debug', 'MySQL Database Driver Initialized'); } @@ -262,11 +270,7 @@ class Database_Mysql_Driver extends Database_Driver { public function list_tables(Database $db) { - if (!TEST_MODE) { - static $tables; - } else { - $tables = array(); - } + $tables =& $this->tables_cache; if (empty($tables) AND $query = $db->query('SHOW TABLES FROM '.$this->escape_table($this->db_config['connection']['database']))) { @@ -286,11 +290,7 @@ class Database_Mysql_Driver extends Database_Driver { public function list_fields($table) { - if (!TEST_MODE) { - static $tables; - } else { - $tables = array(); - } + $tables =& $this->fields_cache; if (empty($tables[$table])) { @@ -337,6 +337,18 @@ class Database_Mysql_Driver extends Database_Driver { return $columns; } + /** + * Clears the internal query cache. + * + * @param string SQL query + */ + public function clear_cache($sql = NULL) + { + parent::clear_cache($sql); + $this->tables_cache = array(); + $this->fields_cache = array(); + } + } // End Database_Mysql_Driver Class /** @@ -497,4 +509,4 @@ class Mysql_Result extends Database_Result { } } -} // End Mysql_Result Class
\ No newline at end of file +} // End Mysql_Result Class |