diff options
Diffstat (limited to 'system/database/drivers/cubrid/cubrid_forge.php')
| -rw-r--r-- | system/database/drivers/cubrid/cubrid_forge.php | 362 |
1 files changed, 152 insertions, 210 deletions
diff --git a/system/database/drivers/cubrid/cubrid_forge.php b/system/database/drivers/cubrid/cubrid_forge.php index 0c0b08a62..27bfc1466 100644 --- a/system/database/drivers/cubrid/cubrid_forge.php +++ b/system/database/drivers/cubrid/cubrid_forge.php @@ -1,288 +1,230 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP * - * @package CodeIgniter - * @author Esen Sagynov - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html - * @link http://codeigniter.com - * @since Version 1.0 + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) + * @license http://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 2.1.0 * @filesource */ - -// ------------------------------------------------------------------------ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * CUBRID Forge Class * * @category Database * @author Esen Sagynov - * @link http://codeigniter.com/user_guide/database/ + * @link https://codeigniter.com/user_guide/database/ */ class CI_DB_cubrid_forge extends CI_DB_forge { /** - * Create database + * CREATE DATABASE statement * - * @access private - * @param string the database name - * @return bool + * @var string */ - 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; - } + protected $_create_database = FALSE; - // -------------------------------------------------------------------- + /** + * CREATE TABLE keys flag + * + * Whether table keys are created from within the + * CREATE TABLE statement. + * + * @var bool + */ + protected $_create_table_keys = TRUE; /** - * Drop database + * DROP DATABASE statement * - * @access private - * @param string the database name - * @return bool + * @var string */ - function _drop_database($name) - { - // CUBRID does not allow to drop a database in SQL. The GUI tools - // have to be used for this purpose. - return FALSE; - } + protected $_drop_database = FALSE; + + /** + * CREATE TABLE IF statement + * + * @var string + */ + protected $_create_table_if = FALSE; + + /** + * UNSIGNED support + * + * @var array + */ + protected $_unsigned = array( + 'SHORT' => 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'BIGINT' => 'NUMERIC', + 'FLOAT' => 'DOUBLE', + 'REAL' => 'DOUBLE' + ); // -------------------------------------------------------------------- /** - * Process Fields + * ALTER TABLE * - * @access private - * @param mixed the fields - * @return string + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] */ - function _process_fields($fields) + protected function _alter_table($alter_type, $table, $field) { - $current_field_count = 0; - $sql = ''; + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } - foreach ($fields as $field=>$attributes) + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) { - // Numeric field names aren't allowed in databases, so if the key is - // numeric, we know it was assigned by PHP and the developer manually - // entered the field information, so we'll simply add it to the list - if (is_numeric($field)) + if ($field[$i]['_literal'] !== FALSE) { - $sql .= "\n\t$attributes"; + $sqls[] = $sql.' CHANGE '.$field[$i]['_literal']; } 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) - { - $sql .= ' UNIQUE'; - } - } - - // don't add a comma on the end of the last field - if (++$current_field_count < count($fields)) - { - $sql .= ','; + $alter_type = empty($field[$i]['new_name']) ? ' MODIFY ' : ' CHANGE '; + $sqls[] = $sql.$alter_type.$this->_process_column($field[$i]); } } - return $sql; + return $sqls; } // -------------------------------------------------------------------- /** - * Create Table + * Process column * - * @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 + * @param array $field + * @return string */ - function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists) + protected function _process_column($field) { - $sql = 'CREATE TABLE '; - - if ($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); + $extra_clause = isset($field['after']) + ? ' AFTER '.$this->db->escape_identifiers($field['after']) : ''; - // If there is a PK defined - if (count($primary_keys) > 0) + if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE) { - $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) . ")"; + $extra_clause = ' FIRST'; } - if (is_array($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; + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique'] + .$extra_clause; } // -------------------------------------------------------------------- /** - * Drop Table + * Field attribute TYPE * - * @access private - * @return string + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void */ - function _drop_table($table) + protected function _attr_type(&$attributes) { - return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table); + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'LONGTEXT': + $attributes['TYPE'] = 'STRING'; + return; + default: return; + } } // -------------------------------------------------------------------- /** - * Alter table query + * Process indexes * - * 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 + * @param string $table (ignored) + * @return string */ - function _alter_table($alter_type, $table, $fields, $after_field = '') + protected function _process_indexes($table) { - $sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type "; + $sql = ''; - // DROP has everything it needs now. - if ($alter_type == 'DROP') + for ($i = 0, $c = count($this->keys); $i < $c; $i++) { - return $sql.$this->db->_protect_identifiers($fields); - } + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } - $sql .= $this->_process_fields($fields); + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); - if ($after_field != '') - { - $sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field); + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; } - return $sql; - } + $this->keys = array(); - // -------------------------------------------------------------------- - - /** - * Rename a table - * - * Generates a platform-specific query so that a table can be renamed - * - * @access private - * @param string the old table name - * @param string the new table name - * @return string - */ - function _rename_table($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 */
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