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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');/*** CodeIgniter** An open source application development framework for PHP 5.1.6 or newer** @package CodeIgniter* @author Esen Sagynov* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.* @license http://codeigniter.com/user_guide/license.html* @link http://codeigniter.com* @since Version 1.0* @filesource*/// ------------------------------------------------------------------------/*** CUBRID Forge Class** @category Database* @author Esen Sagynov* @link http://codeigniter.com/user_guide/database/*/class CI_DB_cubrid_forge extends CI_DB_forge {/*** Create database** @access private* @param string the database name* @return bool*/function _create_database($name){// CUBRID does not allow to create a database in SQL. The GUI tools// have to be used for this purpose.return FALSE;}// --------------------------------------------------------------------/*** Drop database** @access private* @param string the database name* @return bool*/function _drop_database($name){// CUBRID does not allow to drop a database in SQL. The GUI tools// have to be used for this purpose.return FALSE;}// --------------------------------------------------------------------/*** Process Fields** @access private* @param mixed the fields* @return string*/function _process_fields($fields){$current_field_count = 0;$sql = '';foreach ($fields as $field=>$attributes){// Numeric field names aren't allowed in databases, so if the key is// numeric, we know it was assigned by PHP and the developer manually// entered the field information, so we'll simply add it to the listif (is_numeric($field)){$sql .= "\n\t$attributes";}else{$attributes = array_change_key_case($attributes, CASE_UPPER);$sql .= "\n\t\"" . $this->db->_protect_identifiers($field) . "\"";if (array_key_exists('NAME', $attributes)){$sql .= ' '.$this->db->_protect_identifiers($attributes['NAME']).' ';}if (array_key_exists('TYPE', $attributes)){$sql .= ' '.$attributes['TYPE'];if (array_key_exists('CONSTRAINT', $attributes)){switch ($attributes['TYPE']){case 'decimal':case 'float':case 'numeric':$sql .= '('.implode(',', $attributes['CONSTRAINT']).')';break;case 'enum': // As of version 8.4.0 CUBRID does not support// enum data type.break;case 'set':$sql .= '("'.implode('","', $attributes['CONSTRAINT']).'")';break;default:$sql .= '('.$attributes['CONSTRAINT'].')';}}}if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE){//$sql .= ' UNSIGNED';// As of version 8.4.0 CUBRID does not support UNSIGNED INTEGER data type.// Will be supported in the next release as a part of MySQL Compatibility.}if (array_key_exists('DEFAULT', $attributes)){$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';}if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE){$sql .= ' NULL';}else{$sql .= ' NOT NULL';}if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE){$sql .= ' AUTO_INCREMENT';}if (array_key_exists('UNIQUE', $attributes) && $attributes['UNIQUE'] === TRUE){$sql .= ' UNIQUE';}}// don't add a comma on the end of the last fieldif (++$current_field_count < count($fields)){$sql .= ',';}}return $sql;}// --------------------------------------------------------------------/*** Create Table** @access private* @param string the table name* @param mixed the fields* @param mixed primary key(s)* @param mixed key(s)* @param boolean should 'IF NOT EXISTS' be added to the SQL* @return bool*/function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists){$sql = 'CREATE TABLE ';if ($if_not_exists === TRUE){//$sql .= 'IF NOT EXISTS ';// As of version 8.4.0 CUBRID does not support this SQL syntax.}$sql .= $this->db->_escape_identifiers($table)." (";$sql .= $this->_process_fields($fields);// If there is a PK definedif (count($primary_keys) > 0){$key_name = "pk_" . $table . "_" .$this->db->_protect_identifiers(implode('_', $primary_keys));$primary_keys = $this->db->_protect_identifiers($primary_keys);$sql .= ",\n\tCONSTRAINT " . $key_name . " PRIMARY KEY(" . implode(', ', $primary_keys) . ")";}if (is_array($keys) && count($keys) > 0){foreach ($keys as $key){if (is_array($key)){$key_name = $this->db->_protect_identifiers(implode('_', $key));$key = $this->db->_protect_identifiers($key);}else{$key_name = $this->db->_protect_identifiers($key);$key = array($key_name);}$sql .= ",\n\tKEY \"{$key_name}\" (" . implode(', ', $key) . ")";}}$sql .= "\n);";return $sql;}// --------------------------------------------------------------------/*** Drop Table** @access private* @return string*/function _drop_table($table){return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table);}// --------------------------------------------------------------------/*** Alter table query** Generates a platform-specific query so that a table can be altered* Called by add_column(), drop_column(), and column_alter(),** @access private* @param string the ALTER type (ADD, DROP, CHANGE)* @param string the column name* @param array fields* @param string the field after which we should add the new field* @return object*/function _alter_table($alter_type, $table, $fields, $after_field = ''){$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type ";// DROP has everything it needs now.if ($alter_type == 'DROP'){return $sql.$this->db->_protect_identifiers($fields);}$sql .= $this->_process_fields($fields);if ($after_field != ''){$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);}return $sql;}// --------------------------------------------------------------------/*** Rename a table** Generates a platform-specific query so that a table can be renamed** @access private* @param string the old table name* @param string the new table name* @return string*/function _rename_table($table_name, $new_table_name){$sql = 'RENAME TABLE '.$this->db->_protect_identifiers($table_name)." AS ".$this->db->_protect_identifiers($new_table_name);return $sql;}}/* End of file cubrid_forge.php *//* Location: ./system/database/drivers/cubrid/cubrid_forge.php */