diff options
Diffstat (limited to 'system/database/DB_driver.php')
| -rw-r--r-- | system/database/DB_driver.php | 74 |
1 files changed, 12 insertions, 62 deletions
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php index 25e70ec3f..af6b9f399 100644 --- a/system/database/DB_driver.php +++ b/system/database/DB_driver.php @@ -380,7 +380,8 @@ abstract class CI_DB_driver { /** * Initialize Database Settings * - * @return bool + * @return void + * @throws RuntimeException In case of failure */ public function initialize() { @@ -392,7 +393,7 @@ abstract class CI_DB_driver { */ if ($this->conn_id) { - return TRUE; + return; } // ---------------------------------------------------------------- @@ -429,19 +430,9 @@ abstract class CI_DB_driver { // We still don't have a connection? if ( ! $this->conn_id) { - log_message('error', 'Unable to connect to the database'); - - if ($this->db_debug) - { - $this->display_error('db_unable_to_connect'); - } - - return FALSE; + throw new RuntimeException('Unable to connect to the database.'); } } - - // Now we set the character set and that's all - return $this->db_set_charset($this->char_set); } // -------------------------------------------------------------------- @@ -505,26 +496,13 @@ abstract class CI_DB_driver { // -------------------------------------------------------------------- /** - * Set client character set + * Last error * - * @param string - * @return bool + * @return array */ - public function db_set_charset($charset) + public function error() { - if (method_exists($this, '_db_set_charset') && ! $this->_db_set_charset($charset)) - { - log_message('error', 'Unable to set database connection charset: '.$charset); - - if ($this->db_debug) - { - $this->display_error('db_unable_to_set_charset', $charset); - } - - return FALSE; - } - - return TRUE; + return array('code' => NULL, 'message' => NULL); } // -------------------------------------------------------------------- @@ -622,7 +600,6 @@ abstract class CI_DB_driver { // cached query if it exists if ($this->cache_on === TRUE && $return_object === TRUE && $this->_cache_init()) { - $this->load_rdriver(); if (FALSE !== ($cache = $this->CACHE->read($sql))) { return $cache; @@ -710,9 +687,9 @@ abstract class CI_DB_driver { return TRUE; } - // Load and instantiate the result driver - $driver = $this->load_rdriver(); - $RES = new $driver($this); + // Instantiate the driver-specific result class + $driver = 'CI_DB_'.$this->dbdriver.'_result'; + $RES = new $driver($this); // Is query caching enabled? If so, we'll serialize the // result object and save it to a cache file. @@ -742,26 +719,6 @@ abstract class CI_DB_driver { // -------------------------------------------------------------------- /** - * Load the result drivers - * - * @return string the name of the result class - */ - public function load_rdriver() - { - $driver = 'CI_DB_'.$this->dbdriver.'_result'; - - if ( ! class_exists($driver, FALSE)) - { - require_once(BASEPATH.'database/DB_result.php'); - require_once(BASEPATH.'database/drivers/'.$this->dbdriver.'/'.$this->dbdriver.'_result.php'); - } - - return $driver; - } - - // -------------------------------------------------------------------- - - /** * Simple Query * This is a simplified version of the query() function. Internally * we only use it when running transaction commands since they do @@ -772,14 +729,7 @@ abstract class CI_DB_driver { */ public function simple_query($sql) { - if ( ! $this->conn_id) - { - if ( ! $this->initialize()) - { - return FALSE; - } - } - + empty($this->conn_id) && $this->initialize(); return $this->_execute($sql); } |