mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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392 lines
No EOL
9.7 KiB
PHP
392 lines
No EOL
9.7 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Sybase 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(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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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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* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.libs.model.datasources.dbo
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* @since CakePHP(tm) v 1.2.0.3097
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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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* 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 DboSybase extends DboSource {
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/**
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* Driver description
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*
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* @var string
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*/
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var $description = "Sybase DBO Driver";
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/**
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* Start quote for quoted identifiers
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*
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* @var string
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*/
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var $startQuote = "";
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/**
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* End quote for quoted identifiers
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*
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* @var string
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*/
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var $endQuote = "";
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/**
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* Base configuration settings for Sybase driver
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*
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* @var array
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*/
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var $_baseConfig = array(
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'persistent' => true,
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'host' => 'localhost',
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'login' => 'sa',
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'password' => '',
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'database' => 'cake',
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'port' => '4100'
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);
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/**
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* Sybase column definition
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*
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* @var array
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*/
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var $columns = array(
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'primary_key' => array('name' => 'numeric(9,0) IDENTITY PRIMARY KEY'),
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'string' => array('name' => 'varchar', 'limit' => '255'),
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'text' => array('name' => 'text'),
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'integer' => array('name' => 'int', 'limit' => '11', 'formatter' => 'intval'),
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'float' => array('name' => 'float', 'formatter' => 'floatval'),
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'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
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'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
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'time' => array('name' => 'datetime', 'format' => 'H:i:s', 'formatter' => 'date'),
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'date' => array('name' => 'datetime', 'format' => 'Y-m-d', 'formatter' => 'date'),
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'binary' => array('name' => 'image'),
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'boolean' => array('name' => 'bit')
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);
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/**
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* Connects to the database using options in the given configuration array.
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*
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* @return boolean True if the database could be connected, else false
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*/
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function connect() {
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$config = $this->config;
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$port = '';
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if ($config['port'] !== null) {
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$port = ':' . $config['port'];
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}
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if ($config['persistent']) {
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$this->connection = sybase_pconnect($config['host'] . $port, $config['login'], $config['password']);
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} else {
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$this->connection = sybase_connect($config['host'] . $port, $config['login'], $config['password'], true);
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}
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$this->connected = sybase_select_db($config['database'], $this->connection);
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return $this->connected;
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}
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/**
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* Check that one of the sybase extensions is installed
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*
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* @return boolean
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**/
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function enabled() {
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return extension_loaded('sybase') || extension_loaded('sybase_ct');
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}
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/**
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* Disconnects from database.
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*
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* @return boolean True if the database could be disconnected, else false
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*/
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function disconnect() {
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$this->connected = !@sybase_close($this->connection);
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return !$this->connected;
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}
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/**
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* Executes given SQL statement.
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*
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* @param string $sql SQL statement
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* @return resource Result resource identifier
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* @access protected
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*/
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function _execute($sql) {
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return sybase_query($sql, $this->connection);
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}
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/**
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* Returns an array of sources (tables) in the database.
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*
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* @return array Array of tablenames in the database
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*/
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function listSources() {
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$cache = parent::listSources();
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if ($cache != null) {
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return $cache;
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}
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$result = $this->_execute("SELECT name FROM sysobjects WHERE type IN ('U', 'V')");
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if (!$result) {
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return array();
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} else {
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$tables = array();
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while ($line = sybase_fetch_array($result)) {
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$tables[] = $line[0];
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}
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parent::listSources($tables);
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return $tables;
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}
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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 string $tableName Name of database table to inspect
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* @return array Fields in table. Keys are name and type
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*/
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function describe(&$model) {
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$cache = parent::describe($model);
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if ($cache != null) {
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return $cache;
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}
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$fields = false;
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$cols = $this->query('DESC ' . $this->fullTableName($model));
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foreach ($cols as $column) {
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$colKey = array_keys($column);
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if (isset($column[$colKey[0]]) && !isset($column[0])) {
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$column[0] = $column[$colKey[0]];
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}
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if (isset($column[0])) {
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$fields[$column[0]['Field']] = array(
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'type' => $this->column($column[0]['Type']),
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'null' => $column[0]['Null'],
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'length' => $this->length($column[0]['Type']),
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);
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}
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}
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$this->__cacheDescription($model->tablePrefix.$model->table, $fields);
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return $fields;
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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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* @param string $column The column into which this data will be inserted
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* @param boolean $safe Whether or not numeric data should be handled automagically if no column data is provided
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* @return string Quoted and escaped data
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*/
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function value($data, $column = null, $safe = false) {
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$parent = parent::value($data, $column, $safe);
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if ($parent != null) {
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return $parent;
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}
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if ($data === null) {
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return 'NULL';
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}
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if ($data === '') {
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return "''";
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}
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switch ($column) {
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case 'boolean':
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$data = $this->boolean((bool)$data);
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break;
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default:
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$data = str_replace("'", "''", $data);
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break;
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}
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return "'" . $data . "'";
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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 TRAN')) {
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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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* 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 = false;
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return $this->execute('COMMIT TRAN');
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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 $this->execute('ROLLBACK TRAN');
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}
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return false;
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}
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/**
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* Returns a formatted error message from previous database operation.
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*
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* @todo not implemented
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* @return string Error message with error number
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*/
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function lastError() {
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return null;
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}
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/**
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* Returns number of affected rows in previous database operation. If no previous operation exists,
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* this returns false.
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*
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* @return integer Number of affected rows
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*/
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function lastAffected() {
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if ($this->_result) {
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return sybase_affected_rows($this->connection);
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}
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return null;
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}
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/**
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* Returns number of rows in previous resultset. If no previous resultset exists,
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* this returns false.
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*
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* @return integer Number of rows in resultset
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*/
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function lastNumRows() {
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if ($this->hasResult()) {
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return @sybase_num_rows($this->_result);
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}
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return null;
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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 unknown_type $source
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* @return in
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*/
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function lastInsertId($source = null) {
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$result=$this->fetchRow('SELECT @@IDENTITY');
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return $result[0];
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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 $real Real database-layer column type (i.e. "varchar(255)")
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* @return string Abstract column type (i.e. "string")
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*/
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function column($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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{
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$col .= '('.$real['limit'].')';
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}
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return $col;
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}
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$col = str_replace(')', '', $real);
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$limit = null;
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if (strpos($col, '(') !== false) {
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list($col, $limit) = explode('(', $col);
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}
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if (in_array($col, array('datetime', 'smalldatetime'))) {
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return 'datetime';
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} elseif (in_array($col, array('int', 'bigint', 'smallint', 'tinyint'))) {
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return 'integer';
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} elseif (in_array($col, array('float', 'double', 'real', 'decimal', 'money', 'numeric', 'smallmoney'))) {
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return 'float';
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} elseif (strpos($col, 'text') !== false) {
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return 'text';
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} elseif (in_array($col, array('char', 'nchar', 'nvarchar', 'string', 'varchar'))) {
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return 'binary';
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} elseif (in_array($col, array('binary', 'image', 'varbinary'))) {
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return 'binary';
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}
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return 'text';
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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 $results
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*/
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function resultSet(&$results) {
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$this->results =& $results;
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$this->map = array();
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$num_fields = sybase_num_fields($results);
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$index = 0;
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$j = 0;
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while ($j < $num_fields) {
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$column = sybase_fetch_field($results,$j);
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if (!empty($column->table)) {
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$this->map[$index++] = array($column->table, $column->name);
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} else {
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$this->map[$index++] = array(0, $column->name);
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}
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$j++;
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}
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}
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/**
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* Fetches the next row from the current result set
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*
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* @return unknown
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*/
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function fetchResult() {
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if ($row = sybase_fetch_row($this->results)) {
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$resultRow = array();
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$i = 0;
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foreach ($row as $index => $field) {
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list($table, $column) = $this->map[$index];
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$resultRow[$table][$column] = $row[$index];
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$i++;
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}
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return $resultRow;
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} else {
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return false;
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}
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}
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}
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?>
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