diff options
Diffstat (limited to 'system/database/DB_forge.php')
| -rw-r--r-- | system/database/DB_forge.php | 61 |
1 files changed, 51 insertions, 10 deletions
diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php index 34c502a99..a519575f0 100644 --- a/system/database/DB_forge.php +++ b/system/database/DB_forge.php @@ -25,10 +25,8 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** - * Database Utility Class + * Database Forge Class * * @category Database * @author EllisLab Dev Team @@ -41,6 +39,12 @@ abstract class CI_DB_forge { public $primary_keys = array(); public $db_char_set = ''; + // Platform specific SQL strings + protected $_create_database = 'CREATE DATABASE %s'; + protected $_drop_database = 'DROP DATABASE %s'; + protected $_drop_table = 'DROP TABLE IF EXISTS %s'; + protected $_rename_table = 'ALTER TABLE %s RENAME TO %s'; + public function __construct() { // Assign the main database object to $this->db @@ -59,8 +63,16 @@ abstract class CI_DB_forge { */ public function create_database($db_name) { - $sql = $this->_create_database($db_name); - return is_bool($sql) ? $sql : $this->db->query($sql); + if ($this->_create_database === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; + } + elseif ( ! $this->db->query(sprintf($this->_create_database, $db_name, $this->db->char_set, $this->db->dbcollat))) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + return TRUE; } // -------------------------------------------------------------------- @@ -73,8 +85,21 @@ abstract class CI_DB_forge { */ public function drop_database($db_name) { - $sql = $this->_drop_database($db_name); - return is_bool($sql) ? $sql : $this->db->query($sql); + if ($db_name == '') + { + show_error('A table name is required for that operation.'); + return FALSE; + } + elseif ($this->_drop_database === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; + } + elseif ( ! $this->db->query(sprintf($this->_drop_database, $db_name))) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + return TRUE; } // -------------------------------------------------------------------- @@ -197,8 +222,16 @@ abstract class CI_DB_forge { */ public function drop_table($table_name) { - $sql = $this->_drop_table($this->db->dbprefix.$table_name); - return is_bool($sql) ? $sql : $this->db->query($sql); + if ($table_name == '') + { + return ($this->db->db_debug) ? $this->db->display_error('db_table_name_required') : FALSE; + } + elseif ($this->_drop_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; + } + + return $this->db->query(sprintf($this->_drop_table, $this->db->escape_identifiers($this->db->dbprefix.$table_name))); } // -------------------------------------------------------------------- @@ -215,9 +248,17 @@ abstract class CI_DB_forge { if ($table_name == '' OR $new_table_name == '') { show_error('A table name is required for that operation.'); + return FALSE; + } + elseif ($this->_rename_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE; } - return $this->db->query($this->_rename_table($this->db->dbprefix.$table_name, $this->db->dbprefix.$new_table_name)); + return $this->db->query(sprintf($this->_rename_table, + $this->db->escape_identifiers($this->db->dbprefix.$table_name), + $this->db->escape_identifiers($this->db->dbprefix.$new_table_name)) + ); } // -------------------------------------------------------------------- |