260 lines
6.6 KiB
PHP
260 lines
6.6 KiB
PHP
<?php
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/**
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* FuzeWorks.
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*
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* The FuzeWorks MVC PHP FrameWork
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*
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* Copyright (C) 2015 TechFuze
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @author TechFuze
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* @copyright Copyright (c) 2013 - 2016, Techfuze. (http://techfuze.net)
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* @copyright Copyright (c) 1996 - 2015, Free Software Foundation, Inc. (http://www.fsf.org/)
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* @license http://opensource.org/licenses/GPL-3.0 GPLv3 License
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*
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* @link http://techfuze.net/fuzeworks
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* @since Version 0.0.1
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*
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* @version Version 1.0.0
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*/
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/**
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* PDO Firebird Database Adapter Class
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*
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* Note: _DB is an extender class that the app controller
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* creates dynamically based on whether the query builder
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* class is being used or not.
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*
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* Converted from CodeIgniter.
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*
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* @package FuzeWorks
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* @subpackage Drivers
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* @category Database
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* @author EllisLab Dev Team
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* @link https://codeigniter.com/user_guide/database/
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* @license http://opensource.org/licenses/MIT MIT License
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*/
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class FW_DB_pdo_firebird_driver extends FW_DB_pdo_driver {
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/**
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* Sub-driver
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*
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* @var string
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*/
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public $subdriver = 'firebird';
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// --------------------------------------------------------------------
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/**
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* ORDER BY random keyword
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*
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* @var array
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*/
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protected $_random_keyword = array('RAND()', 'RAND()');
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// --------------------------------------------------------------------
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/**
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* Class constructor
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*
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* Builds the DSN if not already set.
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*
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* @param array $params
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* @return void
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*/
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public function __construct($params)
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{
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parent::__construct($params);
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if (empty($this->dsn))
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{
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$this->dsn = 'firebird:';
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if ( ! empty($this->database))
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{
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$this->dsn .= 'dbname='.$this->database;
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}
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elseif ( ! empty($this->hostname))
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{
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$this->dsn .= 'dbname='.$this->hostname;
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}
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empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set;
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empty($this->role) OR $this->dsn .= ';role='.$this->role;
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}
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elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 9) === FALSE)
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{
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$this->dsn .= ';charset='.$this->char_set;
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}
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}
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// --------------------------------------------------------------------
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/**
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* Show table query
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*
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* Generates a platform-specific query string so that the table names can be fetched
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*
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* @param bool $prefix_limit
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* @return string
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*/
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protected function _list_tables($prefix_limit = FALSE)
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{
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$sql = 'SELECT "RDB$RELATION_NAME" FROM "RDB$RELATIONS" WHERE "RDB$RELATION_NAME" NOT LIKE \'RDB$%\' AND "RDB$RELATION_NAME" NOT LIKE \'MON$%\'';
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if ($prefix_limit === TRUE && $this->dbprefix !== '')
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{
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return $sql.' AND "RDB$RELATION_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' "
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.sprintf($this->_like_escape_str, $this->_like_escape_chr);
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}
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return $sql;
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}
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// --------------------------------------------------------------------
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/**
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* Show column query
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*
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* Generates a platform-specific query string so that the column names can be fetched
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*
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* @param string $table
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* @return string
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*/
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protected function _list_columns($table = '')
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{
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return 'SELECT "RDB$FIELD_NAME" FROM "RDB$RELATION_FIELDS" WHERE "RDB$RELATION_NAME" = '.$this->escape($table);
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}
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// --------------------------------------------------------------------
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/**
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* Returns an object with field data
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*
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* @param string $table
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* @return array
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*/
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public function field_data($table)
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{
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$sql = 'SELECT "rfields"."RDB$FIELD_NAME" AS "name",
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CASE "fields"."RDB$FIELD_TYPE"
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WHEN 7 THEN \'SMALLINT\'
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WHEN 8 THEN \'INTEGER\'
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WHEN 9 THEN \'QUAD\'
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WHEN 10 THEN \'FLOAT\'
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WHEN 11 THEN \'DFLOAT\'
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WHEN 12 THEN \'DATE\'
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WHEN 13 THEN \'TIME\'
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WHEN 14 THEN \'CHAR\'
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WHEN 16 THEN \'INT64\'
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WHEN 27 THEN \'DOUBLE\'
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WHEN 35 THEN \'TIMESTAMP\'
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WHEN 37 THEN \'VARCHAR\'
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WHEN 40 THEN \'CSTRING\'
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WHEN 261 THEN \'BLOB\'
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ELSE NULL
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END AS "type",
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"fields"."RDB$FIELD_LENGTH" AS "max_length",
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"rfields"."RDB$DEFAULT_VALUE" AS "default"
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FROM "RDB$RELATION_FIELDS" "rfields"
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JOIN "RDB$FIELDS" "fields" ON "rfields"."RDB$FIELD_SOURCE" = "fields"."RDB$FIELD_NAME"
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WHERE "rfields"."RDB$RELATION_NAME" = '.$this->escape($table).'
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ORDER BY "rfields"."RDB$FIELD_POSITION"';
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return (($query = $this->query($sql)) !== FALSE)
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? $query->result_object()
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: FALSE;
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}
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// --------------------------------------------------------------------
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/**
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* Update statement
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*
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* Generates a platform-specific update string from the supplied data
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*
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* @param string $table
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* @param array $values
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* @return string
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*/
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protected function _update($table, $values)
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{
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$this->qb_limit = FALSE;
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return parent::_update($table, $values);
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}
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// --------------------------------------------------------------------
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/**
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* Truncate statement
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*
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* Generates a platform-specific truncate string from the supplied data
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*
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* If the database does not support the TRUNCATE statement,
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* then this method maps to 'DELETE FROM table'
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*
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* @param string $table
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* @return string
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*/
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protected function _truncate($table)
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{
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return 'DELETE FROM '.$table;
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}
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// --------------------------------------------------------------------
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/**
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* Delete statement
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*
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* Generates a platform-specific delete string from the supplied data
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*
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* @param string $table
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* @return string
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*/
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protected function _delete($table)
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{
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$this->qb_limit = FALSE;
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return parent::_delete($table);
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}
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// --------------------------------------------------------------------
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/**
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* LIMIT
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*
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* Generates a platform-specific LIMIT clause
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*
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* @param string $sql SQL Query
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* @return string
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*/
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protected function _limit($sql)
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{
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// Limit clause depends on if Interbase or Firebird
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if (stripos($this->version(), 'firebird') !== FALSE)
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{
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$select = 'FIRST '.$this->qb_limit
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.($this->qb_offset > 0 ? ' SKIP '.$this->qb_offset : '');
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}
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else
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{
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$select = 'ROWS '
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.($this->qb_offset > 0 ? $this->qb_offset.' TO '.($this->qb_limit + $this->qb_offset) : $this->qb_limit);
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}
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return preg_replace('`SELECT`i', 'SELECT '.$select, $sql);
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}
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}
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