mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
synced 2024-11-15 19:38:26 +00:00
15ca3a9c39
sets case insensitivity of sorting after connect clears statements/cursors when done interating through them begun adding transaction support fixed date/timestamp support to support more date formats added supports for dates and timestamps added a sequence public property instead of the hardcoded name git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@4244 3807eeeb-6ff5-0310-8944-8be069107fe0
593 lines
No EOL
14 KiB
PHP
593 lines
No EOL
14 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Oracle layer for DBO
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*
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* Long description for file
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*
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* PHP versions 4 and 5
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*
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* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright (c) 2006, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright (c) 2006, Cake Software Foundation, Inc.
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
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* @package cake
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* @subpackage cake.cake.libs.model.datasources.dbo
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* @since CakePHP v 1.2.0.4041
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* Include DBO.
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*/
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uses('model'.DS.'datasources'.DS.'dbo_source');
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/**
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* Short description for class.
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*
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* Long description for class
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*
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* @package cake
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* @subpackage cake.cake.libs.model.datasources.dbo
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*/
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class DboOracle extends DboSource {
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access public
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*/
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var $config;
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access public
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*/
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var $alias = '';
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/**
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* The name of the model's sequence
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*
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* @var unknown_type
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*/
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var $sequence = '';
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access public
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*/
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var $columns = array('primary_key' => array('name' => 'number NOT NULL'),
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'string' => array('name' => 'varchar2', 'limit' => '255'),
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'text' => array('name' => 'varchar2'),
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'integer' => array('name' => 'numeric'),
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'float' => array('name' => 'float'),
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'datetime' => array('name' => 'date'),
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'timestamp' => array('name' => 'date'),
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'time' => array('name' => 'date'),
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'date' => array('name' => 'date'),
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'binary' => array('name' => 'bytea'),
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'boolean' => array('name' => 'boolean'),
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'number' => array('name' => 'numeric'),
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'inet' => array('name' => 'inet'));
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access protected
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*/
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var $_conn;
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access protected
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*/
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var $_limit = -1;
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access protected
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*/
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var $_offset = 0;
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access protected
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*/
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var $_map;
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access protected
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*/
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var $_currentRow;
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access protected
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*/
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var $_numRows;
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/**
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* Enter description here...
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*
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* @var unknown_type
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* @access protected
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*/
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var $_results;
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/**
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* Connects to the database using options in the given configuration array.
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*
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* @return boolean True if the database could be connected, else false
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* @access public
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*/
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function connect() {
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if ($this->connected) {
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return true;
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}
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$config = $this->config;
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if ($config) {
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$this->_conn = ociplogon($config['login'], $config['password'], $config['database']);
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}
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if($this->_conn){
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$this->connected = true;
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$this->execute('alter session set nls_sort=binary_ci');
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}
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if (!$this->connected) {
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return false;
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}
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}
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/**
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* Disconnects from database.
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*
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* @return boolean True if the database could be disconnected, else false
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* @access public
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*/
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function disconnect() {
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if ($this->_conn) {
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return ocilogoff($this->_conn);
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}
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}
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/**
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* Scrape the incoming SQL to create the association map. This is an extremely
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* experimental method that creates the association maps since Oracle will not tell us.
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*
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* @param string $sql
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* @return false if sql is nor a SELECT
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* @access protected
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*/
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function _scrapeSQL($sql) {
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if (strpos($sql, 'SELECT') === false) {
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return false;
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}
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$sql = str_replace("\"", '', $sql);
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$preFrom = explode('FROM', $sql);
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$preFrom = $preFrom[0];
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$find = array('SELECT');
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$replace = array('');
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$fieldList = trim(str_replace($find, $replace, $preFrom));
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$fields = explode(', ', $fieldList);
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$this->_map = array();
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foreach ($fields as $f) {
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$e = explode('.', $f);
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if (count($e) > 1) {
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$table = $e[0];
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$field = strtolower($e[1]);
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} else {
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$table = 0;
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$field = $e[0];
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}
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$this->_map[] = array($table, $field);
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}
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}
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/**
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* Modify a SQL query to limit (and offset) the result set
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*
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* @param int $limit Maximum number of rows to return
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* @param int $offset Row to begin returning
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* @return modified SQL Query
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* @access public
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*/
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function limit($limit, $offset = 0) {
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$this->_limit = (float) $limit;
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$this->_offset = (float) $offset;
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}
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/**
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* Returns number of rows in previous resultset. If no previous resultset exists,
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* this returns false.
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*
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* @return int Number of rows in resultset
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* @access public
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*/
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function lastNumRows() {
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return $this->_numRows;
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}
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/**
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* Executes given SQL statement. This is an overloaded method.
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*
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* @param string $sql SQL statement
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* @return resource Result resource identifier or null
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* @access protected
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*/
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function _execute($sql) {
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#print $sql;
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$this->_scrapeSQL($sql);
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$this->_statementId = ociparse($this->_conn, $sql);
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if (!$this->_statementId) {
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return null;
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}
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/*
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if ($this->__transactionStarted) {
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$mode = OCI_DEFAULT;
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print 'default';
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} else {
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$mode = OCI_COMMIT_ON_SUCCESS;
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print 'commit';
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}
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*/
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//$mode = OCI_COMMIT_ON_SUCCESS;
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$mode = OCI_DEFAULT;
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if (!ociexecute($this->_statementId, $mode)) {
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return false;
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}
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// THIS CAN BE REPLACED WITH a check from ocistatementtype()
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// we're really only executing this for DESCRIBE and SELECT
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if (strpos(strtoupper($sql), 'INSERT') === 0) {
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return $this->_statementId;
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}
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if (strpos(strtoupper($sql), 'UPDATE') === 0) {
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return $this->_statementId;
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}
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if (strpos(strtoupper($sql), 'DELETE') === 0) {
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return $this->_statementId;
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}
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if (strpos(strtoupper($sql), 'ALTER') === 0) {
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return $this->_statementId;
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}
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/*
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if (strpos($sql, 'CREATE') >= (int)0) {
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return $this->_statementId;
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}
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*/
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if ($this->_limit >= 1) {
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ocisetprefetch($this->_statementId, $this->_limit);
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} else {
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ocisetprefetch($this->_statementId, 3000);
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}
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// fetch occurs here instead of fetchResult in order to get the number of rows
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$this->_numRows = ocifetchstatement($this->_statementId, $this->_results, $this->_offset, $this->_limit, OCI_NUM | OCI_FETCHSTATEMENT_BY_ROW);
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#debug($this->_results);
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$this->_currentRow = 0;
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return $this->_statementId;
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}
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/**
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* Enter description here...
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*
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* @return unknown
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* @access public
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*/
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function fetchRow() {
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if ($this->_currentRow >= $this->_numRows) {
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ocifreestatement($this->_statementId);
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return false;
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}
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$resultRow = array();
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foreach ($this->_results[$this->_currentRow] as $index => $field) {
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list($table, $column) = $this->_map[$index];
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if (strpos($column, 'count')) {
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$resultRow[0]['count'] = $field;
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} else {
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$resultRow[$table][$column] = $this->_results[$this->_currentRow][$index];
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}
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}
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$this->_currentRow++;
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return $resultRow;
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}
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/**
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* Enter description here...
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*
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* @param unknown_type $sql
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* @return unknown
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* @access public
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*/
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/*
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function query($sql) {
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$stid = ociparse($this->_conn, $sql);
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$r = ociexecute($stid, OCI_DEFAULT);
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if (!$r) {
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return false;
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}
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$result = array();
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while (ocifetchinto($stid, $row, OCI_ASSOC)) {
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$result[] = $row;
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}
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return $result;
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}
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*/
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/**
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* Returns an array of tables in the database. If there are no tables, an error is
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* raised and the application exits.
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*
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* @return array tablenames in the database
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* @access public
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*/
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function listSources() {
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$sql = 'SELECT view_name AS name FROM user_views UNION SELECT table_name AS name FROM user_tables';
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$stid = ociparse($this->_conn, $sql);
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$r = ociexecute($stid, OCI_DEFAULT);
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if (!$r) {
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return false;
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}
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$tables = array();
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while (ocifetchinto($stid, $row, OCI_ASSOC)) {
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$tables[] = $row['NAME'];
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}
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return $tables;
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}
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/**
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* Returns an array of the fields in given table name.
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*
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* @param object instance of a model to inspect
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* @return array Fields in table. Keys are name and type
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* @access public
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*/
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function describe(&$model) {
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$cache = parent::describe($model);
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if ($cache != null) {
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return $cache;
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}
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$sql = 'SELECT * FROM user_tab_columns WHERE table_name = \'';
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$sql .= strtoupper($model->table) . '\'';
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if (!$stid = ociparse($this->_conn, $sql)) {
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return false;
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}
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if (!$r = ociexecute($stid, OCI_DEFAULT)) {
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return false;
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}
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$fields = array();
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for ($i=0; ocifetchinto($stid, $row, OCI_ASSOC); $i++) {
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$fields[$i]['name'] = strtolower($row['COLUMN_NAME']);
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$fields[$i]['type'] = $this->column($row['DATA_TYPE']);
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}
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$this->__cacheDescription($this->fullTableName($model, false), $fields);
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return $fields;
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}
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/**
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* DANGEROUS. This method quotes Oracle identifiers. This will break all scaffolding
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* compatibility and all of Cake's default assumptions.
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*
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* @param unknown_type $var
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* @return unknown
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* @access public
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*/
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function name($var) {
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return $var;
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/*
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#print "$var<br>";
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if (strpos($var, '.')) {
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return $var;
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}
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if (strpos($var, "\"") === false) {
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return "\"" . $var . "\"";
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} else {
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return $var;
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}
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*/
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}
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/**
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* Begin a transaction
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*
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* @param unknown_type $model
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* @return boolean True on success, false on fail
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* (i.e. if the database/model does not support transactions).
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*/
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function begin(&$model) {
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//if (parent::begin($model)) {
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//if ($this->execute('BEGIN')) {
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$this->__transactionStarted = true;
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return true;
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//}
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//}
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return false;
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}
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/**
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* Rollback a transaction
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*
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* @param unknown_type $model
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* @return boolean True on success, false on fail
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* (i.e. if the database/model does not support transactions,
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* or a transaction has not started).
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*/
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function rollback(&$model) {
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if (parent::rollback($model)) {
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return ocirollback($this->_conn);
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}
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return false;
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}
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/**
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* Commit a transaction
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*
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* @param unknown_type $model
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* @return boolean True on success, false on fail
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* (i.e. if the database/model does not support transactions,
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* or a transaction has not started).
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*/
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function commit(&$model) {
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if (parent::commit($model)) {
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$this->__transactionStarted;
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return ocicommit($this->_conn);
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}
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return false;
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}
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/**
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* Converts database-layer column types to basic types
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*
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* @param string $real Real database-layer column type (i.e. "varchar(255)")
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* @return string Abstract column type (i.e. "string")
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* @access public
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*/
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function column($real) {
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if (is_array($real)) {
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$col = $real['name'];
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if (isset($real['limit'])) {
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$col .= '('.$real['limit'].')';
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}
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return $col;
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} else {
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$real = strtolower($real);
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}
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$col = r(')', '', $real);
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$limit = null;
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@list($col, $limit) = explode('(', $col);
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if (in_array($col, array('date', 'timestamp'))) {
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return $col;
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}
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if (strpos($col, 'number') !== false) {
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return 'integer';
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}
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if (strpos($col, 'integer') !== false) {
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return 'integer';
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}
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if (strpos($col, 'char') !== false) {
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return 'string';
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}
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if (strpos($col, 'text') !== false) {
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return 'text';
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}
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if (strpos($col, 'blob') !== false) {
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return 'binary';
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}
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if (in_array($col, array('float', 'double', 'decimal'))) {
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return 'float';
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}
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if ($col == 'boolean') {
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return $col;
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}
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return 'text';
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}
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/**
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* Returns a quoted and escaped string of $data for use in an SQL statement.
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*
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* @param string $data String to be prepared for use in an SQL statement
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* @return string Quoted and escaped
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* @access public
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*/
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function value($data, $column_type = null) {
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switch ($column_type) {
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case 'date':
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$date = date('Y-m-d H:i:s', strtotime($data));
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return "TO_DATE('$date', 'YYYY-MM-DD HH24:MI:SS')";
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default:
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$data2 = str_replace("'", "''", $data);
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return "'".$data2."'";
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}
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}
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/**
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* Returns the ID generated from the previous INSERT operation.
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*
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* @param string
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* @return int
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* @access public
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*/
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function lastInsertId($source) {
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$sequence = (!empty($this->sequence)) ? $this->sequence : 'pk_'.$source;
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$sql = "SELECT $sequence.currval FROM dual";
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$stid = ociparse($this->_conn, $sql);
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$r = ociexecute($stid, OCI_DEFAULT);
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if (!$r) {
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return false;
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}
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$result = array();
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while (ocifetchinto($stid, $row, OCI_ASSOC)) {
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$result[] = $row;
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}
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return $result[0]['CURRVAL'];
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}
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/**
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* Returns an array of the fields in given table name.
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*
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* @param object model to inspect
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* @param string alias
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* @param string fields
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* @return array Fields in table. Keys are name and type
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* @access public
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*/
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/*
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function fields ($model, $alias, $f) {
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$sql = "SELECT column_name FROM user_tab_columns ";
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$sql .= "WHERE table_name = '" . strtoupper($model->table) . "'";
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if (!$stid = ociparse($this->_conn, $sql)) {
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return false;
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}
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if (!$r = ociexecute($stid, OCI_DEFAULT)) {
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return false;
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}
|
|
// not sure if this is supposed to be an array or string
|
|
$fields = $f;
|
|
|
|
while (ocifetchinto($stid, $row)) {
|
|
$fields[] = $model->name .'.'. $row[0];
|
|
}
|
|
return $fields;
|
|
}
|
|
*/
|
|
# THE METHODS BELOW HAVE NOT BEEN TESTED!!!
|
|
/**
|
|
* Returns a formatted error message from previous database operation.
|
|
*
|
|
* @return string Error message with error number
|
|
* @access public
|
|
*/
|
|
function lastError() {
|
|
$errors = ocierror();
|
|
|
|
if( ($errors != null) && (isSet($errors["message"])) ) {
|
|
return($errors["message"]);
|
|
}
|
|
return null;
|
|
}
|
|
/**
|
|
* Returns number of affected rows in previous database operation. If no previous operation exists, this returns false.
|
|
*
|
|
* @return int Number of affected rows
|
|
* @access public
|
|
*/
|
|
function lastAffected() {
|
|
return $this->_statementId? ocirowcount($this->_statementId): false;
|
|
}
|
|
}
|
|
?>
|