a grand renaming so that the most significant portion of the name comes first
This commit is contained in:
Dan Buch
@@ -0,0 +1,788 @@
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<?php
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/**
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* MS SQL layer for DBO
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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 0.10.5.1790
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* MS SQL layer for DBO
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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 DboMssql 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 = "MS SQL DBO Driver";
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/**
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* Starting quote character 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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* Ending quote character 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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* Creates a map between field aliases and numeric indexes. Workaround for the
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* SQL Server driver's 30-character column name limitation.
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*
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* @var array
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*/
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var $__fieldMappings = array();
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/**
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* Base configuration settings for MS SQL 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' => 'root',
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'password' => '',
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'database' => 'cake',
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'port' => '1433',
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);
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/**
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* MS SQL 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' => 'IDENTITY (1, 1) NOT NULL'),
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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', 'formatter' => 'intval'),
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'float' => array('name' => 'numeric', '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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* Index of basic SQL commands
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*
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* @var array
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* @access protected
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*/
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var $_commands = array(
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'begin' => 'BEGIN TRANSACTION',
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'commit' => 'COMMIT',
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'rollback' => 'ROLLBACK'
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);
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/**
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* Define if the last query had error
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*
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* @var string
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* @access private
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*/
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var $__lastQueryHadError = false;
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/**
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* MS SQL DBO driver constructor; sets SQL Server error reporting defaults
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*
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* @param array $config Configuration data from app/config/databases.php
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* @return boolean True if connected successfully, false on error
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*/
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function __construct($config, $autoConnect = true) {
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if ($autoConnect) {
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if (!function_exists('mssql_min_message_severity')) {
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trigger_error(__("PHP SQL Server interface is not installed, cannot continue. For troubleshooting information, see http://php.net/mssql/", true), E_USER_WARNING);
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}
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mssql_min_message_severity(15);
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mssql_min_error_severity(2);
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}
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return parent::__construct($config, $autoConnect);
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}
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/**
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* Connects to the database using options in the given configuration array.
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*
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* @return boolean True if the database could be connected, else false
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*/
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function connect() {
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$config = $this->config;
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$os = env('OS');
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if (!empty($os) && strpos($os, 'Windows') !== false) {
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$sep = ',';
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} else {
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$sep = ':';
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}
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$this->connected = false;
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if (is_numeric($config['port'])) {
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$port = $sep . $config['port']; // Port number
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} elseif ($config['port'] === null) {
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$port = ''; // No port - SQL Server 2005
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} else {
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$port = '\\' . $config['port']; // Named pipe
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}
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if (!$config['persistent']) {
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$this->connection = mssql_connect($config['host'] . $port, $config['login'], $config['password'], true);
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} else {
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$this->connection = mssql_pconnect($config['host'] . $port, $config['login'], $config['password']);
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}
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if (mssql_select_db($config['database'], $this->connection)) {
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$this->_execute("SET DATEFORMAT ymd");
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$this->connected = true;
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}
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return $this->connected;
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}
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/**
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* Check that MsSQL is installed/loaded
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*
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* @return boolean
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*/
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function enabled() {
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return extension_loaded('mssql');
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}
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/**
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* Disconnects from database.
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*
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* @return boolean True if the database could be disconnected, else false
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*/
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function disconnect() {
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@mssql_free_result($this->results);
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$this->connected = !@mssql_close($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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$result = @mssql_query($sql, $this->connection);
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$this->__lastQueryHadError = ($result === false);
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return $result;
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}
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/**
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* Returns an array of sources (tables) in the database.
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*
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* @return array Array of tablenames in the database
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*/
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function listSources() {
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$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 = $this->fetchAll('SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES', false);
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if (!$result || empty($result)) {
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return array();
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} else {
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$tables = array();
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foreach ($result as $table) {
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$tables[] = $table[0]['TABLE_NAME'];
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}
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parent::listSources($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 Model $model Model object to describe
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* @return array Fields in table. Keys are name and type
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*/
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function describe(&$model) {
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$cache = parent::describe($model);
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if ($cache != null) {
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return $cache;
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}
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$table = $this->fullTableName($model, false);
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$cols = $this->fetchAll("SELECT COLUMN_NAME as Field, DATA_TYPE as Type, COL_LENGTH('" . $table . "', COLUMN_NAME) as Length, IS_NULLABLE As [Null], COLUMN_DEFAULT as [Default], COLUMNPROPERTY(OBJECT_ID('" . $table . "'), COLUMN_NAME, 'IsIdentity') as [Key], NUMERIC_SCALE as Size FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '" . $table . "'", false);
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$fields = false;
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foreach ($cols as $column) {
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$field = $column[0]['Field'];
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$fields[$field] = array(
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'type' => $this->column($column[0]['Type']),
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'null' => (strtoupper($column[0]['Null']) == 'YES'),
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'default' => preg_replace("/^[(]{1,2}'?([^')]*)?'?[)]{1,2}$/", "$1", $column[0]['Default']),
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'length' => intval($column[0]['Length']),
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'key' => ($column[0]['Key'] == '1') ? 'primary' : false
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);
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if ($fields[$field]['default'] === 'null') {
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$fields[$field]['default'] = null;
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} else {
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$this->value($fields[$field]['default'], $fields[$field]['type']);
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}
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if ($fields[$field]['key'] && $fields[$field]['type'] == 'integer') {
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$fields[$field]['length'] = 11;
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} elseif (!$fields[$field]['key']) {
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unset($fields[$field]['key']);
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}
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if (in_array($fields[$field]['type'], array('date', 'time', 'datetime', 'timestamp'))) {
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$fields[$field]['length'] = null;
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}
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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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* 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 (in_array($column, array('integer', 'float', 'binary')) && $data === '') {
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return 'NULL';
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}
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if ($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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if (get_magic_quotes_gpc()) {
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$data = stripslashes(str_replace("'", "''", $data));
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} else {
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$data = str_replace("'", "''", $data);
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}
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break;
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}
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if (in_array($column, array('integer', 'float', 'binary')) && is_numeric($data)) {
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return $data;
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}
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return "'" . $data . "'";
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}
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/**
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* Generates the fields list of an SQL query.
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*
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* @param Model $model
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* @param string $alias Alias tablename
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* @param mixed $fields
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* @return array
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*/
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function fields(&$model, $alias = null, $fields = array(), $quote = true) {
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if (empty($alias)) {
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$alias = $model->alias;
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}
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$fields = parent::fields($model, $alias, $fields, false);
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$count = count($fields);
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if ($count >= 1 && strpos($fields[0], 'COUNT(*)') === false) {
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$result = array();
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for ($i = 0; $i < $count; $i++) {
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$prepend = '';
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if (strpos($fields[$i], 'DISTINCT') !== false) {
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$prepend = 'DISTINCT ';
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$fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i]));
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}
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$fieldAlias = count($this->__fieldMappings);
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if (!preg_match('/\s+AS\s+/i', $fields[$i])) {
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if (substr($fields[$i], -1) == '*') {
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if (strpos($fields[$i], '.') !== false && $fields[$i] != $alias . '.*') {
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$build = explode('.', $fields[$i]);
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$AssociatedModel = $model->{$build[0]};
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} else {
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$AssociatedModel = $model;
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}
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$_fields = $this->fields($AssociatedModel, $AssociatedModel->alias, array_keys($AssociatedModel->schema()));
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$result = array_merge($result, $_fields);
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continue;
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}
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if (strpos($fields[$i], '.') === false) {
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$this->__fieldMappings[$alias . '__' . $fieldAlias] = $alias . '.' . $fields[$i];
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$fieldName = $this->name($alias . '.' . $fields[$i]);
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$fieldAlias = $this->name($alias . '__' . $fieldAlias);
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} else {
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$build = explode('.', $fields[$i]);
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$this->__fieldMappings[$build[0] . '__' . $fieldAlias] = $fields[$i];
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$fieldName = $this->name($build[0] . '.' . $build[1]);
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$fieldAlias = $this->name(preg_replace("/^\[(.+)\]$/", "$1", $build[0]) . '__' . $fieldAlias);
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}
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if ($model->getColumnType($fields[$i]) == 'datetime') {
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$fieldName = "CONVERT(VARCHAR(20), {$fieldName}, 20)";
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}
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$fields[$i] = "{$fieldName} AS {$fieldAlias}";
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||||
}
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$result[] = $prepend . $fields[$i];
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}
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return $result;
|
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} else {
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return $fields;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates and executes an SQL INSERT statement for given model, fields, and values.
|
||||
* Removes Identity (primary key) column from update data before returning to parent, if
|
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* value is empty.
|
||||
*
|
||||
* @param Model $model
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||||
* @param array $fields
|
||||
* @param array $values
|
||||
* @param mixed $conditions
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||||
* @return array
|
||||
*/
|
||||
function create(&$model, $fields = null, $values = null) {
|
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if (!empty($values)) {
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$fields = array_combine($fields, $values);
|
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}
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$primaryKey = $this->_getPrimaryKey($model);
|
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|
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if (array_key_exists($primaryKey, $fields)) {
|
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if (empty($fields[$primaryKey])) {
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unset($fields[$primaryKey]);
|
||||
} else {
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$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($model) . ' ON');
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||||
}
|
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}
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$result = parent::create($model, array_keys($fields), array_values($fields));
|
||||
if (array_key_exists($primaryKey, $fields) && !empty($fields[$primaryKey])) {
|
||||
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($model) . ' OFF');
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates and executes an SQL UPDATE statement for given model, fields, and values.
|
||||
* Removes Identity (primary key) column from update data before returning to parent.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param array $fields
|
||||
* @param array $values
|
||||
* @param mixed $conditions
|
||||
* @return array
|
||||
*/
|
||||
function update(&$model, $fields = array(), $values = null, $conditions = null) {
|
||||
if (!empty($values)) {
|
||||
$fields = array_combine($fields, $values);
|
||||
}
|
||||
if (isset($fields[$model->primaryKey])) {
|
||||
unset($fields[$model->primaryKey]);
|
||||
}
|
||||
if (empty($fields)) {
|
||||
return true;
|
||||
}
|
||||
return parent::update($model, array_keys($fields), array_values($fields), $conditions);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a formatted error message from previous database operation.
|
||||
*
|
||||
* @return string Error message with error number
|
||||
*/
|
||||
function lastError() {
|
||||
if ($this->__lastQueryHadError) {
|
||||
$error = mssql_get_last_message();
|
||||
if ($error && !preg_match('/contexto de la base de datos a|contesto di database|changed database|contexte de la base de don|datenbankkontext/i', $error)) {
|
||||
return $error;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of affected rows in previous database operation. If no previous operation exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @return integer Number of affected rows
|
||||
*/
|
||||
function lastAffected() {
|
||||
if ($this->_result) {
|
||||
return mssql_rows_affected($this->connection);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of rows in previous resultset. If no previous resultset exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @return integer Number of rows in resultset
|
||||
*/
|
||||
function lastNumRows() {
|
||||
if ($this->_result) {
|
||||
return @mssql_num_rows($this->_result);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ID generated from the previous INSERT operation.
|
||||
*
|
||||
* @param unknown_type $source
|
||||
* @return in
|
||||
*/
|
||||
function lastInsertId($source = null) {
|
||||
$id = $this->fetchRow('SELECT SCOPE_IDENTITY() AS insertID', false);
|
||||
return $id[0]['insertID'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a limit statement in the correct format for the particular database.
|
||||
*
|
||||
* @param integer $limit Limit of results returned
|
||||
* @param integer $offset Offset from which to start results
|
||||
* @return string SQL limit/offset statement
|
||||
*/
|
||||
function limit($limit, $offset = null) {
|
||||
if ($limit) {
|
||||
$rt = '';
|
||||
if (!strpos(strtolower($limit), 'top') || strpos(strtolower($limit), 'top') === 0) {
|
||||
$rt = ' TOP';
|
||||
}
|
||||
$rt .= ' ' . $limit;
|
||||
if (is_int($offset) && $offset > 0) {
|
||||
$rt .= ' OFFSET ' . $offset;
|
||||
}
|
||||
return $rt;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts database-layer column types to basic types
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return string Abstract column type (i.e. "string")
|
||||
*/
|
||||
function column($real) {
|
||||
if (is_array($real)) {
|
||||
$col = $real['name'];
|
||||
|
||||
if (isset($real['limit'])) {
|
||||
$col .= '(' . $real['limit'] . ')';
|
||||
}
|
||||
return $col;
|
||||
}
|
||||
$col = str_replace(')', '', $real);
|
||||
$limit = null;
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $limit) = explode('(', $col);
|
||||
}
|
||||
|
||||
if (in_array($col, array('date', 'time', 'datetime', 'timestamp'))) {
|
||||
return $col;
|
||||
}
|
||||
if ($col == 'bit') {
|
||||
return 'boolean';
|
||||
}
|
||||
if (strpos($col, 'int') !== false) {
|
||||
return 'integer';
|
||||
}
|
||||
if (strpos($col, 'char') !== false) {
|
||||
return 'string';
|
||||
}
|
||||
if (strpos($col, 'text') !== false) {
|
||||
return 'text';
|
||||
}
|
||||
if (strpos($col, 'binary') !== false || $col == 'image') {
|
||||
return 'binary';
|
||||
}
|
||||
if (in_array($col, array('float', 'real', 'decimal', 'numeric'))) {
|
||||
return 'float';
|
||||
}
|
||||
return 'text';
|
||||
}
|
||||
|
||||
/**
|
||||
* Enter description here...
|
||||
*
|
||||
* @param unknown_type $results
|
||||
*/
|
||||
function resultSet(&$results) {
|
||||
$this->results =& $results;
|
||||
$this->map = array();
|
||||
$numFields = mssql_num_fields($results);
|
||||
$index = 0;
|
||||
$j = 0;
|
||||
|
||||
while ($j < $numFields) {
|
||||
$column = mssql_field_name($results, $j);
|
||||
|
||||
if (strpos($column, '__')) {
|
||||
if (isset($this->__fieldMappings[$column]) && strpos($this->__fieldMappings[$column], '.')) {
|
||||
$map = explode('.', $this->__fieldMappings[$column]);
|
||||
} elseif (isset($this->__fieldMappings[$column])) {
|
||||
$map = array(0, $this->__fieldMappings[$column]);
|
||||
} else {
|
||||
$map = array(0, $column);
|
||||
}
|
||||
$this->map[$index++] = $map;
|
||||
} else {
|
||||
$this->map[$index++] = array(0, $column);
|
||||
}
|
||||
$j++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Builds final SQL statement
|
||||
*
|
||||
* @param string $type Query type
|
||||
* @param array $data Query data
|
||||
* @return string
|
||||
*/
|
||||
function renderStatement($type, $data) {
|
||||
switch (strtolower($type)) {
|
||||
case 'select':
|
||||
extract($data);
|
||||
$fields = trim($fields);
|
||||
|
||||
if (strpos($limit, 'TOP') !== false && strpos($fields, 'DISTINCT ') === 0) {
|
||||
$limit = 'DISTINCT ' . trim($limit);
|
||||
$fields = substr($fields, 9);
|
||||
}
|
||||
|
||||
if (preg_match('/offset\s+([0-9]+)/i', $limit, $offset)) {
|
||||
$limit = preg_replace('/\s*offset.*$/i', '', $limit);
|
||||
preg_match('/top\s+([0-9]+)/i', $limit, $limitVal);
|
||||
$offset = intval($offset[1]) + intval($limitVal[1]);
|
||||
$rOrder = $this->__switchSort($order);
|
||||
list($order2, $rOrder) = array($this->__mapFields($order), $this->__mapFields($rOrder));
|
||||
return "SELECT * FROM (SELECT {$limit} * FROM (SELECT TOP {$offset} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order}) AS Set1 {$rOrder}) AS Set2 {$order2}";
|
||||
} else {
|
||||
return "SELECT {$limit} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$group} {$order}";
|
||||
}
|
||||
break;
|
||||
case "schema":
|
||||
extract($data);
|
||||
|
||||
foreach ($indexes as $i => $index) {
|
||||
if (preg_match('/PRIMARY KEY/', $index)) {
|
||||
unset($indexes[$i]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
foreach (array('columns', 'indexes') as $var) {
|
||||
if (is_array(${$var})) {
|
||||
${$var} = "\t" . implode(",\n\t", array_filter(${$var}));
|
||||
}
|
||||
}
|
||||
return "CREATE TABLE {$table} (\n{$columns});\n{$indexes}";
|
||||
break;
|
||||
default:
|
||||
return parent::renderStatement($type, $data);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Reverses the sort direction of ORDER statements to get paging offsets to work correctly
|
||||
*
|
||||
* @param string $order
|
||||
* @return string
|
||||
* @access private
|
||||
*/
|
||||
function __switchSort($order) {
|
||||
$order = preg_replace('/\s+ASC/i', '__tmp_asc__', $order);
|
||||
$order = preg_replace('/\s+DESC/i', ' ASC', $order);
|
||||
return preg_replace('/__tmp_asc__/', ' DESC', $order);
|
||||
}
|
||||
|
||||
/**
|
||||
* Translates field names used for filtering and sorting to shortened names using the field map
|
||||
*
|
||||
* @param string $sql A snippet of SQL representing an ORDER or WHERE statement
|
||||
* @return string The value of $sql with field names replaced
|
||||
* @access private
|
||||
*/
|
||||
function __mapFields($sql) {
|
||||
if (empty($sql) || empty($this->__fieldMappings)) {
|
||||
return $sql;
|
||||
}
|
||||
foreach ($this->__fieldMappings as $key => $val) {
|
||||
$sql = preg_replace('/' . preg_quote($val) . '/', $this->name($key), $sql);
|
||||
$sql = preg_replace('/' . preg_quote($this->name($val)) . '/', $this->name($key), $sql);
|
||||
}
|
||||
return $sql;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of all result rows for a given SQL query.
|
||||
* Returns false if no rows matched.
|
||||
*
|
||||
* @param string $sql SQL statement
|
||||
* @param boolean $cache Enables returning/storing cached query results
|
||||
* @return array Array of resultset rows, or false if no rows matched
|
||||
*/
|
||||
function read(&$model, $queryData = array(), $recursive = null) {
|
||||
$results = parent::read($model, $queryData, $recursive);
|
||||
$this->__fieldMappings = array();
|
||||
return $results;
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetches the next row from the current result set
|
||||
*
|
||||
* @return unknown
|
||||
*/
|
||||
function fetchResult() {
|
||||
if ($row = mssql_fetch_row($this->results)) {
|
||||
$resultRow = array();
|
||||
$i = 0;
|
||||
|
||||
foreach ($row as $index => $field) {
|
||||
list($table, $column) = $this->map[$index];
|
||||
$resultRow[$table][$column] = $row[$index];
|
||||
$i++;
|
||||
}
|
||||
return $resultRow;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Inserts multiple values into a table
|
||||
*
|
||||
* @param string $table
|
||||
* @param string $fields
|
||||
* @param array $values
|
||||
* @access protected
|
||||
*/
|
||||
function insertMulti($table, $fields, $values) {
|
||||
$primaryKey = $this->_getPrimaryKey($table);
|
||||
$hasPrimaryKey = $primaryKey != null && (
|
||||
(is_array($fields) && in_array($primaryKey, $fields)
|
||||
|| (is_string($fields) && strpos($fields, $this->startQuote . $primaryKey . $this->endQuote) !== false))
|
||||
);
|
||||
|
||||
if ($hasPrimaryKey) {
|
||||
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($table) . ' ON');
|
||||
}
|
||||
parent::insertMulti($table, $fields, $values);
|
||||
if ($hasPrimaryKey) {
|
||||
$this->_execute('SET IDENTITY_INSERT ' . $this->fullTableName($table) . ' OFF');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a database-native column schema string
|
||||
*
|
||||
* @param array $column An array structured like the following: array('name'=>'value', 'type'=>'value'[, options]),
|
||||
* where options can be 'default', 'length', or 'key'.
|
||||
* @return string
|
||||
*/
|
||||
function buildColumn($column) {
|
||||
$result = preg_replace('/(int|integer)\([0-9]+\)/i', '$1', parent::buildColumn($column));
|
||||
if (strpos($result, 'DEFAULT NULL') !== false) {
|
||||
$result = str_replace('DEFAULT NULL', 'NULL', $result);
|
||||
} else if (array_keys($column) == array('type', 'name')) {
|
||||
$result .= ' NULL';
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Format indexes for create table
|
||||
*
|
||||
* @param array $indexes
|
||||
* @param string $table
|
||||
* @return string
|
||||
*/
|
||||
function buildIndex($indexes, $table = null) {
|
||||
$join = array();
|
||||
|
||||
foreach ($indexes as $name => $value) {
|
||||
if ($name == 'PRIMARY') {
|
||||
$join[] = 'PRIMARY KEY (' . $this->name($value['column']) . ')';
|
||||
} else if (isset($value['unique']) && $value['unique']) {
|
||||
$out = "ALTER TABLE {$table} ADD CONSTRAINT {$name} UNIQUE";
|
||||
|
||||
if (is_array($value['column'])) {
|
||||
$value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column']));
|
||||
} else {
|
||||
$value['column'] = $this->name($value['column']);
|
||||
}
|
||||
$out .= "({$value['column']});";
|
||||
$join[] = $out;
|
||||
}
|
||||
}
|
||||
return $join;
|
||||
}
|
||||
|
||||
/**
|
||||
* Makes sure it will return the primary key
|
||||
*
|
||||
* @param mixed $model
|
||||
* @access protected
|
||||
* @return string
|
||||
*/
|
||||
function _getPrimaryKey($model) {
|
||||
if (is_object($model)) {
|
||||
$schema = $model->schema();
|
||||
} else {
|
||||
$schema = $this->describe($model);
|
||||
}
|
||||
|
||||
foreach ($schema as $field => $props) {
|
||||
if (isset($props['key']) && $props['key'] == 'primary') {
|
||||
return $field;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,799 @@
|
||||
<?php
|
||||
/**
|
||||
* MySQL layer for DBO
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||||
* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
*
|
||||
* Licensed under The MIT License
|
||||
* Redistributions of files must retain the above copyright notice.
|
||||
*
|
||||
* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
* @link http://cakephp.org CakePHP(tm) Project
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
* @since CakePHP(tm) v 0.10.5.1790
|
||||
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||||
*/
|
||||
|
||||
/**
|
||||
* Provides common base for MySQL & MySQLi connections
|
||||
*
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
*/
|
||||
class DboMysqlBase extends DboSource {
|
||||
|
||||
/**
|
||||
* Description property.
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
var $description = "MySQL DBO Base Driver";
|
||||
|
||||
/**
|
||||
* Start quote
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
var $startQuote = "`";
|
||||
|
||||
/**
|
||||
* End quote
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
var $endQuote = "`";
|
||||
|
||||
/**
|
||||
* use alias for update and delete. Set to true if version >= 4.1
|
||||
*
|
||||
* @var boolean
|
||||
* @access protected
|
||||
*/
|
||||
var $_useAlias = true;
|
||||
|
||||
/**
|
||||
* Index of basic SQL commands
|
||||
*
|
||||
* @var array
|
||||
* @access protected
|
||||
*/
|
||||
var $_commands = array(
|
||||
'begin' => 'START TRANSACTION',
|
||||
'commit' => 'COMMIT',
|
||||
'rollback' => 'ROLLBACK'
|
||||
);
|
||||
|
||||
/**
|
||||
* List of engine specific additional field parameters used on table creating
|
||||
*
|
||||
* @var array
|
||||
* @access public
|
||||
*/
|
||||
var $fieldParameters = array(
|
||||
'charset' => array('value' => 'CHARACTER SET', 'quote' => false, 'join' => ' ', 'column' => false, 'position' => 'beforeDefault'),
|
||||
'collate' => array('value' => 'COLLATE', 'quote' => false, 'join' => ' ', 'column' => 'Collation', 'position' => 'beforeDefault'),
|
||||
'comment' => array('value' => 'COMMENT', 'quote' => true, 'join' => ' ', 'column' => 'Comment', 'position' => 'afterDefault')
|
||||
);
|
||||
|
||||
/**
|
||||
* List of table engine specific parameters used on table creating
|
||||
*
|
||||
* @var array
|
||||
* @access public
|
||||
*/
|
||||
var $tableParameters = array(
|
||||
'charset' => array('value' => 'DEFAULT CHARSET', 'quote' => false, 'join' => '=', 'column' => 'charset'),
|
||||
'collate' => array('value' => 'COLLATE', 'quote' => false, 'join' => '=', 'column' => 'Collation'),
|
||||
'engine' => array('value' => 'ENGINE', 'quote' => false, 'join' => '=', 'column' => 'Engine')
|
||||
);
|
||||
|
||||
/**
|
||||
* MySQL column definition
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
var $columns = array(
|
||||
'primary_key' => array('name' => 'NOT NULL AUTO_INCREMENT'),
|
||||
'string' => array('name' => 'varchar', 'limit' => '255'),
|
||||
'text' => array('name' => 'text'),
|
||||
'integer' => array('name' => 'int', 'limit' => '11', 'formatter' => 'intval'),
|
||||
'float' => array('name' => 'float', 'formatter' => 'floatval'),
|
||||
'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
|
||||
'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
|
||||
'binary' => array('name' => 'blob'),
|
||||
'boolean' => array('name' => 'tinyint', 'limit' => '1')
|
||||
);
|
||||
|
||||
/**
|
||||
* Returns an array of the fields in given table name.
|
||||
*
|
||||
* @param string $tableName Name of database table to inspect
|
||||
* @return array Fields in table. Keys are name and type
|
||||
*/
|
||||
function describe(&$model) {
|
||||
$cache = parent::describe($model);
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
$fields = false;
|
||||
$cols = $this->query('SHOW FULL COLUMNS FROM ' . $this->fullTableName($model));
|
||||
|
||||
foreach ($cols as $column) {
|
||||
$colKey = array_keys($column);
|
||||
if (isset($column[$colKey[0]]) && !isset($column[0])) {
|
||||
$column[0] = $column[$colKey[0]];
|
||||
}
|
||||
if (isset($column[0])) {
|
||||
$fields[$column[0]['Field']] = array(
|
||||
'type' => $this->column($column[0]['Type']),
|
||||
'null' => ($column[0]['Null'] == 'YES' ? true : false),
|
||||
'default' => $column[0]['Default'],
|
||||
'length' => $this->length($column[0]['Type']),
|
||||
);
|
||||
if (!empty($column[0]['Key']) && isset($this->index[$column[0]['Key']])) {
|
||||
$fields[$column[0]['Field']]['key'] = $this->index[$column[0]['Key']];
|
||||
}
|
||||
foreach ($this->fieldParameters as $name => $value) {
|
||||
if (!empty($column[0][$value['column']])) {
|
||||
$fields[$column[0]['Field']][$name] = $column[0][$value['column']];
|
||||
}
|
||||
}
|
||||
if (isset($fields[$column[0]['Field']]['collate'])) {
|
||||
$charset = $this->getCharsetName($fields[$column[0]['Field']]['collate']);
|
||||
if ($charset) {
|
||||
$fields[$column[0]['Field']]['charset'] = $charset;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
$this->__cacheDescription($this->fullTableName($model, false), $fields);
|
||||
return $fields;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates and executes an SQL UPDATE statement for given model, fields, and values.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param array $fields
|
||||
* @param array $values
|
||||
* @param mixed $conditions
|
||||
* @return array
|
||||
*/
|
||||
function update(&$model, $fields = array(), $values = null, $conditions = null) {
|
||||
if (!$this->_useAlias) {
|
||||
return parent::update($model, $fields, $values, $conditions);
|
||||
}
|
||||
|
||||
if ($values == null) {
|
||||
$combined = $fields;
|
||||
} else {
|
||||
$combined = array_combine($fields, $values);
|
||||
}
|
||||
|
||||
$alias = $joins = false;
|
||||
$fields = $this->_prepareUpdateFields($model, $combined, empty($conditions), !empty($conditions));
|
||||
$fields = implode(', ', $fields);
|
||||
$table = $this->fullTableName($model);
|
||||
|
||||
if (!empty($conditions)) {
|
||||
$alias = $this->name($model->alias);
|
||||
if ($model->name == $model->alias) {
|
||||
$joins = implode(' ', $this->_getJoins($model));
|
||||
}
|
||||
}
|
||||
$conditions = $this->conditions($this->defaultConditions($model, $conditions, $alias), true, true, $model);
|
||||
|
||||
if ($conditions === false) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!$this->execute($this->renderStatement('update', compact('table', 'alias', 'joins', 'fields', 'conditions')))) {
|
||||
$model->onError();
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates and executes an SQL DELETE statement for given id/conditions on given model.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param mixed $conditions
|
||||
* @return boolean Success
|
||||
*/
|
||||
function delete(&$model, $conditions = null) {
|
||||
if (!$this->_useAlias) {
|
||||
return parent::delete($model, $conditions);
|
||||
}
|
||||
$alias = $this->name($model->alias);
|
||||
$table = $this->fullTableName($model);
|
||||
$joins = implode(' ', $this->_getJoins($model));
|
||||
|
||||
if (empty($conditions)) {
|
||||
$alias = $joins = false;
|
||||
}
|
||||
$conditions = $this->conditions($this->defaultConditions($model, $conditions, $alias), true, true, $model);
|
||||
|
||||
if ($conditions === false) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if ($this->execute($this->renderStatement('delete', compact('alias', 'table', 'joins', 'conditions'))) === false) {
|
||||
$model->onError();
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the database encoding
|
||||
*
|
||||
* @param string $enc Database encoding
|
||||
*/
|
||||
function setEncoding($enc) {
|
||||
return $this->_execute('SET NAMES ' . $enc) != false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of the indexes in given datasource name.
|
||||
*
|
||||
* @param string $model Name of model to inspect
|
||||
* @return array Fields in table. Keys are column and unique
|
||||
*/
|
||||
function index($model) {
|
||||
$index = array();
|
||||
$table = $this->fullTableName($model);
|
||||
if ($table) {
|
||||
$indexes = $this->query('SHOW INDEX FROM ' . $table);
|
||||
if (isset($indexes[0]['STATISTICS'])) {
|
||||
$keys = Set::extract($indexes, '{n}.STATISTICS');
|
||||
} else {
|
||||
$keys = Set::extract($indexes, '{n}.0');
|
||||
}
|
||||
foreach ($keys as $i => $key) {
|
||||
if (!isset($index[$key['Key_name']])) {
|
||||
$col = array();
|
||||
$index[$key['Key_name']]['column'] = $key['Column_name'];
|
||||
$index[$key['Key_name']]['unique'] = intval($key['Non_unique'] == 0);
|
||||
} else {
|
||||
if (!is_array($index[$key['Key_name']]['column'])) {
|
||||
$col[] = $index[$key['Key_name']]['column'];
|
||||
}
|
||||
$col[] = $key['Column_name'];
|
||||
$index[$key['Key_name']]['column'] = $col;
|
||||
}
|
||||
}
|
||||
}
|
||||
return $index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a MySQL Alter Table syntax for the given Schema comparison
|
||||
*
|
||||
* @param array $compare Result of a CakeSchema::compare()
|
||||
* @return array Array of alter statements to make.
|
||||
*/
|
||||
function alterSchema($compare, $table = null) {
|
||||
if (!is_array($compare)) {
|
||||
return false;
|
||||
}
|
||||
$out = '';
|
||||
$colList = array();
|
||||
foreach ($compare as $curTable => $types) {
|
||||
$indexes = $tableParameters = $colList = array();
|
||||
if (!$table || $table == $curTable) {
|
||||
$out .= 'ALTER TABLE ' . $this->fullTableName($curTable) . " \n";
|
||||
foreach ($types as $type => $column) {
|
||||
if (isset($column['indexes'])) {
|
||||
$indexes[$type] = $column['indexes'];
|
||||
unset($column['indexes']);
|
||||
}
|
||||
if (isset($column['tableParameters'])) {
|
||||
$tableParameters[$type] = $column['tableParameters'];
|
||||
unset($column['tableParameters']);
|
||||
}
|
||||
switch ($type) {
|
||||
case 'add':
|
||||
foreach ($column as $field => $col) {
|
||||
$col['name'] = $field;
|
||||
$alter = 'ADD ' . $this->buildColumn($col);
|
||||
if (isset($col['after'])) {
|
||||
$alter .= ' AFTER ' . $this->name($col['after']);
|
||||
}
|
||||
$colList[] = $alter;
|
||||
}
|
||||
break;
|
||||
case 'drop':
|
||||
foreach ($column as $field => $col) {
|
||||
$col['name'] = $field;
|
||||
$colList[] = 'DROP ' . $this->name($field);
|
||||
}
|
||||
break;
|
||||
case 'change':
|
||||
foreach ($column as $field => $col) {
|
||||
if (!isset($col['name'])) {
|
||||
$col['name'] = $field;
|
||||
}
|
||||
$colList[] = 'CHANGE ' . $this->name($field) . ' ' . $this->buildColumn($col);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
$colList = array_merge($colList, $this->_alterIndexes($curTable, $indexes));
|
||||
$colList = array_merge($colList, $this->_alterTableParameters($curTable, $tableParameters));
|
||||
$out .= "\t" . join(",\n\t", $colList) . ";\n\n";
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a MySQL "drop table" statement for the given Schema object
|
||||
*
|
||||
* @param object $schema An instance of a subclass of CakeSchema
|
||||
* @param string $table Optional. If specified only the table name given will be generated.
|
||||
* Otherwise, all tables defined in the schema are generated.
|
||||
* @return string
|
||||
*/
|
||||
function dropSchema($schema, $table = null) {
|
||||
if (!is_a($schema, 'CakeSchema')) {
|
||||
trigger_error(__('Invalid schema object', true), E_USER_WARNING);
|
||||
return null;
|
||||
}
|
||||
$out = '';
|
||||
foreach ($schema->tables as $curTable => $columns) {
|
||||
if (!$table || $table == $curTable) {
|
||||
$out .= 'DROP TABLE IF EXISTS ' . $this->fullTableName($curTable) . ";\n";
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate MySQL table parameter alteration statementes for a table.
|
||||
*
|
||||
* @param string $table Table to alter parameters for.
|
||||
* @param array $parameters Parameters to add & drop.
|
||||
* @return array Array of table property alteration statementes.
|
||||
* @todo Implement this method.
|
||||
*/
|
||||
function _alterTableParameters($table, $parameters) {
|
||||
if (isset($parameters['change'])) {
|
||||
return $this->buildTableParameters($parameters['change']);
|
||||
}
|
||||
return array();
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate MySQL index alteration statements for a table.
|
||||
*
|
||||
* @param string $table Table to alter indexes for
|
||||
* @param array $new Indexes to add and drop
|
||||
* @return array Index alteration statements
|
||||
*/
|
||||
function _alterIndexes($table, $indexes) {
|
||||
$alter = array();
|
||||
if (isset($indexes['drop'])) {
|
||||
foreach($indexes['drop'] as $name => $value) {
|
||||
$out = 'DROP ';
|
||||
if ($name == 'PRIMARY') {
|
||||
$out .= 'PRIMARY KEY';
|
||||
} else {
|
||||
$out .= 'KEY ' . $name;
|
||||
}
|
||||
$alter[] = $out;
|
||||
}
|
||||
}
|
||||
if (isset($indexes['add'])) {
|
||||
foreach ($indexes['add'] as $name => $value) {
|
||||
$out = 'ADD ';
|
||||
if ($name == 'PRIMARY') {
|
||||
$out .= 'PRIMARY ';
|
||||
$name = null;
|
||||
} else {
|
||||
if (!empty($value['unique'])) {
|
||||
$out .= 'UNIQUE ';
|
||||
}
|
||||
}
|
||||
if (is_array($value['column'])) {
|
||||
$out .= 'KEY '. $name .' (' . implode(', ', array_map(array(&$this, 'name'), $value['column'])) . ')';
|
||||
} else {
|
||||
$out .= 'KEY '. $name .' (' . $this->name($value['column']) . ')';
|
||||
}
|
||||
$alter[] = $out;
|
||||
}
|
||||
}
|
||||
return $alter;
|
||||
}
|
||||
|
||||
/**
|
||||
* Inserts multiple values into a table
|
||||
*
|
||||
* @param string $table
|
||||
* @param string $fields
|
||||
* @param array $values
|
||||
*/
|
||||
function insertMulti($table, $fields, $values) {
|
||||
$table = $this->fullTableName($table);
|
||||
if (is_array($fields)) {
|
||||
$fields = implode(', ', array_map(array(&$this, 'name'), $fields));
|
||||
}
|
||||
$values = implode(', ', $values);
|
||||
$this->query("INSERT INTO {$table} ({$fields}) VALUES {$values}");
|
||||
}
|
||||
/**
|
||||
* Returns an detailed array of sources (tables) in the database.
|
||||
*
|
||||
* @param string $name Table name to get parameters
|
||||
* @return array Array of tablenames in the database
|
||||
*/
|
||||
function listDetailedSources($name = null) {
|
||||
$condition = '';
|
||||
if (is_string($name)) {
|
||||
$condition = ' LIKE ' . $this->value($name);
|
||||
}
|
||||
$result = $this->query('SHOW TABLE STATUS FROM ' . $this->name($this->config['database']) . $condition . ';');
|
||||
if (!$result) {
|
||||
return array();
|
||||
} else {
|
||||
$tables = array();
|
||||
foreach ($result as $row) {
|
||||
$tables[$row['TABLES']['Name']] = $row['TABLES'];
|
||||
if (!empty($row['TABLES']['Collation'])) {
|
||||
$charset = $this->getCharsetName($row['TABLES']['Collation']);
|
||||
if ($charset) {
|
||||
$tables[$row['TABLES']['Name']]['charset'] = $charset;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (is_string($name)) {
|
||||
return $tables[$name];
|
||||
}
|
||||
return $tables;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts database-layer column types to basic types
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return string Abstract column type (i.e. "string")
|
||||
*/
|
||||
function column($real) {
|
||||
if (is_array($real)) {
|
||||
$col = $real['name'];
|
||||
if (isset($real['limit'])) {
|
||||
$col .= '('.$real['limit'].')';
|
||||
}
|
||||
return $col;
|
||||
}
|
||||
|
||||
$col = str_replace(')', '', $real);
|
||||
$limit = $this->length($real);
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $vals) = explode('(', $col);
|
||||
}
|
||||
|
||||
if (in_array($col, array('date', 'time', 'datetime', 'timestamp'))) {
|
||||
return $col;
|
||||
}
|
||||
if (($col == 'tinyint' && $limit == 1) || $col == 'boolean') {
|
||||
return 'boolean';
|
||||
}
|
||||
if (strpos($col, 'int') !== false) {
|
||||
return 'integer';
|
||||
}
|
||||
if (strpos($col, 'char') !== false || $col == 'tinytext') {
|
||||
return 'string';
|
||||
}
|
||||
if (strpos($col, 'text') !== false) {
|
||||
return 'text';
|
||||
}
|
||||
if (strpos($col, 'blob') !== false || $col == 'binary') {
|
||||
return 'binary';
|
||||
}
|
||||
if (strpos($col, 'float') !== false || strpos($col, 'double') !== false || strpos($col, 'decimal') !== false) {
|
||||
return 'float';
|
||||
}
|
||||
if (strpos($col, 'enum') !== false) {
|
||||
return "enum($vals)";
|
||||
}
|
||||
return 'text';
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* MySQL DBO driver object
|
||||
*
|
||||
* Provides connection and SQL generation for MySQL RDMS
|
||||
*
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
*/
|
||||
class DboMysql extends DboMysqlBase {
|
||||
|
||||
/**
|
||||
* Datasource description
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
var $description = "MySQL DBO Driver";
|
||||
|
||||
/**
|
||||
* Base configuration settings for MySQL driver
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
var $_baseConfig = array(
|
||||
'persistent' => true,
|
||||
'host' => 'localhost',
|
||||
'login' => 'root',
|
||||
'password' => '',
|
||||
'database' => 'cake',
|
||||
'port' => '3306'
|
||||
);
|
||||
|
||||
/**
|
||||
* Connects to the database using options in the given configuration array.
|
||||
*
|
||||
* @return boolean True if the database could be connected, else false
|
||||
*/
|
||||
function connect() {
|
||||
$config = $this->config;
|
||||
$this->connected = false;
|
||||
|
||||
if (!$config['persistent']) {
|
||||
$this->connection = mysql_connect($config['host'] . ':' . $config['port'], $config['login'], $config['password'], true);
|
||||
$config['connect'] = 'mysql_connect';
|
||||
} else {
|
||||
$this->connection = mysql_pconnect($config['host'] . ':' . $config['port'], $config['login'], $config['password']);
|
||||
}
|
||||
|
||||
if (mysql_select_db($config['database'], $this->connection)) {
|
||||
$this->connected = true;
|
||||
}
|
||||
|
||||
if (!empty($config['encoding'])) {
|
||||
$this->setEncoding($config['encoding']);
|
||||
}
|
||||
|
||||
$this->_useAlias = (bool)version_compare(mysql_get_server_info($this->connection), "4.1", ">=");
|
||||
|
||||
return $this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check whether the MySQL extension is installed/loaded
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
function enabled() {
|
||||
return extension_loaded('mysql');
|
||||
}
|
||||
/**
|
||||
* Disconnects from database.
|
||||
*
|
||||
* @return boolean True if the database could be disconnected, else false
|
||||
*/
|
||||
function disconnect() {
|
||||
if (isset($this->results) && is_resource($this->results)) {
|
||||
mysql_free_result($this->results);
|
||||
}
|
||||
$this->connected = !@mysql_close($this->connection);
|
||||
return !$this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes given SQL statement.
|
||||
*
|
||||
* @param string $sql SQL statement
|
||||
* @return resource Result resource identifier
|
||||
* @access protected
|
||||
*/
|
||||
function _execute($sql) {
|
||||
return mysql_query($sql, $this->connection);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of sources (tables) in the database.
|
||||
*
|
||||
* @return array Array of tablenames in the database
|
||||
*/
|
||||
function listSources() {
|
||||
$cache = parent::listSources();
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
$result = $this->_execute('SHOW TABLES FROM ' . $this->name($this->config['database']) . ';');
|
||||
|
||||
if (!$result) {
|
||||
return array();
|
||||
} else {
|
||||
$tables = array();
|
||||
|
||||
while ($line = mysql_fetch_row($result)) {
|
||||
$tables[] = $line[0];
|
||||
}
|
||||
parent::listSources($tables);
|
||||
return $tables;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a quoted and escaped string of $data for use in an SQL statement.
|
||||
*
|
||||
* @param string $data String to be prepared for use in an SQL statement
|
||||
* @param string $column The column into which this data will be inserted
|
||||
* @param boolean $safe Whether or not numeric data should be handled automagically if no column data is provided
|
||||
* @return string Quoted and escaped data
|
||||
*/
|
||||
function value($data, $column = null, $safe = false) {
|
||||
$parent = parent::value($data, $column, $safe);
|
||||
|
||||
if ($parent != null) {
|
||||
return $parent;
|
||||
}
|
||||
if ($data === null || (is_array($data) && empty($data))) {
|
||||
return 'NULL';
|
||||
}
|
||||
if ($data === '' && $column !== 'integer' && $column !== 'float' && $column !== 'boolean') {
|
||||
return "''";
|
||||
}
|
||||
if (empty($column)) {
|
||||
$column = $this->introspectType($data);
|
||||
}
|
||||
|
||||
switch ($column) {
|
||||
case 'boolean':
|
||||
return $this->boolean((bool)$data);
|
||||
break;
|
||||
case 'integer':
|
||||
case 'float':
|
||||
if ($data === '') {
|
||||
return 'NULL';
|
||||
}
|
||||
if (is_float($data)) {
|
||||
return sprintf('%F', $data);
|
||||
}
|
||||
if ((is_int($data) || $data === '0') || (
|
||||
is_numeric($data) && strpos($data, ',') === false &&
|
||||
$data[0] != '0' && strpos($data, 'e') === false)
|
||||
) {
|
||||
return $data;
|
||||
}
|
||||
default:
|
||||
return "'" . mysql_real_escape_string($data, $this->connection) . "'";
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a formatted error message from previous database operation.
|
||||
*
|
||||
* @return string Error message with error number
|
||||
*/
|
||||
function lastError() {
|
||||
if (mysql_errno($this->connection)) {
|
||||
return mysql_errno($this->connection).': '.mysql_error($this->connection);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of affected rows in previous database operation. If no previous operation exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @return integer Number of affected rows
|
||||
*/
|
||||
function lastAffected() {
|
||||
if ($this->_result) {
|
||||
return mysql_affected_rows($this->connection);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of rows in previous resultset. If no previous resultset exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @return integer Number of rows in resultset
|
||||
*/
|
||||
function lastNumRows() {
|
||||
if ($this->hasResult()) {
|
||||
return mysql_num_rows($this->_result);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ID generated from the previous INSERT operation.
|
||||
*
|
||||
* @param unknown_type $source
|
||||
* @return in
|
||||
*/
|
||||
function lastInsertId($source = null) {
|
||||
$id = $this->fetchRow('SELECT LAST_INSERT_ID() AS insertID', false);
|
||||
if ($id !== false && !empty($id) && !empty($id[0]) && isset($id[0]['insertID'])) {
|
||||
return $id[0]['insertID'];
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Enter description here...
|
||||
*
|
||||
* @param unknown_type $results
|
||||
*/
|
||||
function resultSet(&$results) {
|
||||
if (isset($this->results) && is_resource($this->results) && $this->results != $results) {
|
||||
mysql_free_result($this->results);
|
||||
}
|
||||
$this->results =& $results;
|
||||
$this->map = array();
|
||||
$numFields = mysql_num_fields($results);
|
||||
$index = 0;
|
||||
$j = 0;
|
||||
|
||||
while ($j < $numFields) {
|
||||
$column = mysql_fetch_field($results, $j);
|
||||
if (!empty($column->table) && strpos($column->name, $this->virtualFieldSeparator) === false) {
|
||||
$this->map[$index++] = array($column->table, $column->name);
|
||||
} else {
|
||||
$this->map[$index++] = array(0, $column->name);
|
||||
}
|
||||
$j++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetches the next row from the current result set
|
||||
*
|
||||
* @return unknown
|
||||
*/
|
||||
function fetchResult() {
|
||||
if ($row = mysql_fetch_row($this->results)) {
|
||||
$resultRow = array();
|
||||
$i = 0;
|
||||
foreach ($row as $index => $field) {
|
||||
list($table, $column) = $this->map[$index];
|
||||
$resultRow[$table][$column] = $row[$index];
|
||||
$i++;
|
||||
}
|
||||
return $resultRow;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the database encoding
|
||||
*
|
||||
* @return string The database encoding
|
||||
*/
|
||||
function getEncoding() {
|
||||
return mysql_client_encoding($this->connection);
|
||||
}
|
||||
|
||||
/**
|
||||
* Query charset by collation
|
||||
*
|
||||
* @param string $name Collation name
|
||||
* @return string Character set name
|
||||
*/
|
||||
function getCharsetName($name) {
|
||||
if ((bool)version_compare(mysql_get_server_info($this->connection), "5", ">=")) {
|
||||
$cols = $this->query('SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME= ' . $this->value($name) . ';');
|
||||
if (isset($cols[0]['COLLATIONS']['CHARACTER_SET_NAME'])) {
|
||||
return $cols[0]['COLLATIONS']['CHARACTER_SET_NAME'];
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,338 @@
|
||||
<?php
|
||||
/**
|
||||
* MySQLi layer for DBO
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||||
* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
*
|
||||
* Licensed under The MIT License
|
||||
* Redistributions of files must retain the above copyright notice.
|
||||
*
|
||||
* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
* @link http://cakephp.org CakePHP(tm) Project
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
* @since CakePHP(tm) v 1.1.4.2974
|
||||
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||||
*/
|
||||
App::import('Datasource', 'DboMysql');
|
||||
|
||||
/**
|
||||
* MySQLi DBO driver object
|
||||
*
|
||||
* Provides connection and SQL generation for MySQL RDMS using PHP's MySQLi Interface
|
||||
*
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
*/
|
||||
class DboMysqli extends DboMysqlBase {
|
||||
|
||||
/**
|
||||
* Datasource Description
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
var $description = "Mysqli DBO Driver";
|
||||
|
||||
/**
|
||||
* Base configuration settings for Mysqli driver
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
var $_baseConfig = array(
|
||||
'persistent' => true,
|
||||
'host' => 'localhost',
|
||||
'login' => 'root',
|
||||
'password' => '',
|
||||
'database' => 'cake',
|
||||
'port' => '3306'
|
||||
);
|
||||
|
||||
/**
|
||||
* Connects to the database using options in the given configuration array.
|
||||
*
|
||||
* @return boolean True if the database could be connected, else false
|
||||
*/
|
||||
function connect() {
|
||||
$config = $this->config;
|
||||
$this->connected = false;
|
||||
|
||||
if (is_numeric($config['port'])) {
|
||||
$config['socket'] = null;
|
||||
} else {
|
||||
$config['socket'] = $config['port'];
|
||||
$config['port'] = null;
|
||||
}
|
||||
|
||||
$this->connection = mysqli_connect($config['host'], $config['login'], $config['password'], $config['database'], $config['port'], $config['socket']);
|
||||
|
||||
if ($this->connection !== false) {
|
||||
$this->connected = true;
|
||||
}
|
||||
|
||||
$this->_useAlias = (bool)version_compare(mysqli_get_server_info($this->connection), "4.1", ">=");
|
||||
|
||||
if (!empty($config['encoding'])) {
|
||||
$this->setEncoding($config['encoding']);
|
||||
}
|
||||
return $this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check that MySQLi is installed/enabled
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
function enabled() {
|
||||
return extension_loaded('mysqli');
|
||||
}
|
||||
/**
|
||||
* Disconnects from database.
|
||||
*
|
||||
* @return boolean True if the database could be disconnected, else false
|
||||
*/
|
||||
function disconnect() {
|
||||
if (isset($this->results) && is_resource($this->results)) {
|
||||
mysqli_free_result($this->results);
|
||||
}
|
||||
$this->connected = !@mysqli_close($this->connection);
|
||||
return !$this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes given SQL statement.
|
||||
*
|
||||
* @param string $sql SQL statement
|
||||
* @return resource Result resource identifier
|
||||
* @access protected
|
||||
*/
|
||||
function _execute($sql) {
|
||||
if (preg_match('/^\s*call/i', $sql)) {
|
||||
return $this->_executeProcedure($sql);
|
||||
}
|
||||
return mysqli_query($this->connection, $sql);
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes given SQL statement (procedure call).
|
||||
*
|
||||
* @param string $sql SQL statement (procedure call)
|
||||
* @return resource Result resource identifier for first recordset
|
||||
* @access protected
|
||||
*/
|
||||
function _executeProcedure($sql) {
|
||||
$answer = mysqli_multi_query($this->connection, $sql);
|
||||
|
||||
$firstResult = mysqli_store_result($this->connection);
|
||||
|
||||
if (mysqli_more_results($this->connection)) {
|
||||
while ($lastResult = mysqli_next_result($this->connection));
|
||||
}
|
||||
return $firstResult;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of sources (tables) in the database.
|
||||
*
|
||||
* @return array Array of tablenames in the database
|
||||
*/
|
||||
function listSources() {
|
||||
$cache = parent::listSources();
|
||||
if ($cache !== null) {
|
||||
return $cache;
|
||||
}
|
||||
$result = $this->_execute('SHOW TABLES FROM ' . $this->name($this->config['database']) . ';');
|
||||
|
||||
if (!$result) {
|
||||
return array();
|
||||
}
|
||||
|
||||
$tables = array();
|
||||
|
||||
while ($line = mysqli_fetch_row($result)) {
|
||||
$tables[] = $line[0];
|
||||
}
|
||||
parent::listSources($tables);
|
||||
return $tables;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a quoted and escaped string of $data for use in an SQL statement.
|
||||
*
|
||||
* @param string $data String to be prepared for use in an SQL statement
|
||||
* @param string $column The column into which this data will be inserted
|
||||
* @param boolean $safe Whether or not numeric data should be handled automagically if no column data is provided
|
||||
* @return string Quoted and escaped data
|
||||
*/
|
||||
function value($data, $column = null, $safe = false) {
|
||||
$parent = parent::value($data, $column, $safe);
|
||||
|
||||
if ($parent != null) {
|
||||
return $parent;
|
||||
}
|
||||
if ($data === null || (is_array($data) && empty($data))) {
|
||||
return 'NULL';
|
||||
}
|
||||
if ($data === '' && $column !== 'integer' && $column !== 'float' && $column !== 'boolean') {
|
||||
return "''";
|
||||
}
|
||||
if (empty($column)) {
|
||||
$column = $this->introspectType($data);
|
||||
}
|
||||
|
||||
switch ($column) {
|
||||
case 'boolean':
|
||||
return $this->boolean((bool)$data);
|
||||
break;
|
||||
case 'integer' :
|
||||
case 'float' :
|
||||
case null :
|
||||
if ($data === '') {
|
||||
return 'NULL';
|
||||
}
|
||||
if ((is_int($data) || is_float($data) || $data === '0') || (
|
||||
is_numeric($data) && strpos($data, ',') === false &&
|
||||
$data[0] != '0' && strpos($data, 'e') === false)) {
|
||||
return $data;
|
||||
}
|
||||
default:
|
||||
$data = "'" . mysqli_real_escape_string($this->connection, $data) . "'";
|
||||
break;
|
||||
}
|
||||
|
||||
return $data;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a formatted error message from previous database operation.
|
||||
*
|
||||
* @return string Error message with error number
|
||||
*/
|
||||
function lastError() {
|
||||
if (mysqli_errno($this->connection)) {
|
||||
return mysqli_errno($this->connection).': '.mysqli_error($this->connection);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of affected rows in previous database operation. If no previous operation exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @return integer Number of affected rows
|
||||
*/
|
||||
function lastAffected() {
|
||||
if ($this->_result) {
|
||||
return mysqli_affected_rows($this->connection);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of rows in previous resultset. If no previous resultset exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @return integer Number of rows in resultset
|
||||
*/
|
||||
function lastNumRows() {
|
||||
if ($this->hasResult()) {
|
||||
return mysqli_num_rows($this->_result);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ID generated from the previous INSERT operation.
|
||||
*
|
||||
* @param unknown_type $source
|
||||
* @return in
|
||||
*/
|
||||
function lastInsertId($source = null) {
|
||||
$id = $this->fetchRow('SELECT LAST_INSERT_ID() AS insertID', false);
|
||||
if ($id !== false && !empty($id) && !empty($id[0]) && isset($id[0]['insertID'])) {
|
||||
return $id[0]['insertID'];
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Enter description here...
|
||||
*
|
||||
* @param unknown_type $results
|
||||
*/
|
||||
function resultSet(&$results) {
|
||||
if (isset($this->results) && is_resource($this->results) && $this->results != $results) {
|
||||
mysqli_free_result($this->results);
|
||||
}
|
||||
$this->results =& $results;
|
||||
$this->map = array();
|
||||
$numFields = mysqli_num_fields($results);
|
||||
$index = 0;
|
||||
$j = 0;
|
||||
while ($j < $numFields) {
|
||||
$column = mysqli_fetch_field_direct($results, $j);
|
||||
if (!empty($column->table)) {
|
||||
$this->map[$index++] = array($column->table, $column->name);
|
||||
} else {
|
||||
$this->map[$index++] = array(0, $column->name);
|
||||
}
|
||||
$j++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetches the next row from the current result set
|
||||
*
|
||||
* @return unknown
|
||||
*/
|
||||
function fetchResult() {
|
||||
if ($row = mysqli_fetch_row($this->results)) {
|
||||
$resultRow = array();
|
||||
foreach ($row as $index => $field) {
|
||||
$table = $column = null;
|
||||
if (count($this->map[$index]) === 2) {
|
||||
list($table, $column) = $this->map[$index];
|
||||
}
|
||||
$resultRow[$table][$column] = $row[$index];
|
||||
}
|
||||
return $resultRow;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the database encoding
|
||||
*
|
||||
* @return string The database encoding
|
||||
*/
|
||||
function getEncoding() {
|
||||
return mysqli_client_encoding($this->connection);
|
||||
}
|
||||
|
||||
/**
|
||||
* Query charset by collation
|
||||
*
|
||||
* @param string $name Collation name
|
||||
* @return string Character set name
|
||||
*/
|
||||
function getCharsetName($name) {
|
||||
if ((bool)version_compare(mysqli_get_server_info($this->connection), "5", ">=")) {
|
||||
$cols = $this->query('SELECT CHARACTER_SET_NAME FROM INFORMATION_SCHEMA.COLLATIONS WHERE COLLATION_NAME= ' . $this->value($name) . ';');
|
||||
if (isset($cols[0]['COLLATIONS']['CHARACTER_SET_NAME'])) {
|
||||
return $cols[0]['COLLATIONS']['CHARACTER_SET_NAME'];
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Checks if the result is valid
|
||||
*
|
||||
* @return boolean True if the result is valid, else false
|
||||
*/
|
||||
function hasResult() {
|
||||
return is_object($this->_result);
|
||||
}
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,977 @@
|
||||
<?php
|
||||
/**
|
||||
* PostgreSQL layer for DBO.
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||||
* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
*
|
||||
* Licensed under The MIT License
|
||||
* Redistributions of files must retain the above copyright notice.
|
||||
*
|
||||
* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
* @link http://cakephp.org CakePHP(tm) Project
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
* @since CakePHP(tm) v 0.9.1.114
|
||||
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||||
*/
|
||||
|
||||
/**
|
||||
* PostgreSQL layer for DBO.
|
||||
*
|
||||
* Long description for class
|
||||
*
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
*/
|
||||
class DboPostgres extends DboSource {
|
||||
|
||||
/**
|
||||
* Driver description
|
||||
*
|
||||
* @var string
|
||||
* @access public
|
||||
*/
|
||||
var $description = "PostgreSQL DBO Driver";
|
||||
|
||||
/**
|
||||
* Index of basic SQL commands
|
||||
*
|
||||
* @var array
|
||||
* @access protected
|
||||
*/
|
||||
var $_commands = array(
|
||||
'begin' => 'BEGIN',
|
||||
'commit' => 'COMMIT',
|
||||
'rollback' => 'ROLLBACK'
|
||||
);
|
||||
|
||||
/**
|
||||
* Base driver configuration settings. Merged with user settings.
|
||||
*
|
||||
* @var array
|
||||
* @access protected
|
||||
*/
|
||||
var $_baseConfig = array(
|
||||
'persistent' => true,
|
||||
'host' => 'localhost',
|
||||
'login' => 'root',
|
||||
'password' => '',
|
||||
'database' => 'cake',
|
||||
'schema' => 'public',
|
||||
'port' => 5432,
|
||||
'encoding' => ''
|
||||
);
|
||||
|
||||
var $columns = array(
|
||||
'primary_key' => array('name' => 'serial NOT NULL'),
|
||||
'string' => array('name' => 'varchar', 'limit' => '255'),
|
||||
'text' => array('name' => 'text'),
|
||||
'integer' => array('name' => 'integer', 'formatter' => 'intval'),
|
||||
'float' => array('name' => 'float', 'formatter' => 'floatval'),
|
||||
'datetime' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
|
||||
'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
|
||||
'binary' => array('name' => 'bytea'),
|
||||
'boolean' => array('name' => 'boolean'),
|
||||
'number' => array('name' => 'numeric'),
|
||||
'inet' => array('name' => 'inet')
|
||||
);
|
||||
|
||||
/**
|
||||
* Starting Quote
|
||||
*
|
||||
* @var string
|
||||
* @access public
|
||||
*/
|
||||
var $startQuote = '"';
|
||||
|
||||
/**
|
||||
* Ending Quote
|
||||
*
|
||||
* @var string
|
||||
* @access public
|
||||
*/
|
||||
var $endQuote = '"';
|
||||
|
||||
/**
|
||||
* Contains mappings of custom auto-increment sequences, if a table uses a sequence name
|
||||
* other than what is dictated by convention.
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
var $_sequenceMap = array();
|
||||
|
||||
/**
|
||||
* Connects to the database using options in the given configuration array.
|
||||
*
|
||||
* @return True if successfully connected.
|
||||
*/
|
||||
function connect() {
|
||||
$config = $this->config;
|
||||
$conn = "host='{$config['host']}' port='{$config['port']}' dbname='{$config['database']}' ";
|
||||
$conn .= "user='{$config['login']}' password='{$config['password']}'";
|
||||
|
||||
if (!$config['persistent']) {
|
||||
$this->connection = pg_connect($conn, PGSQL_CONNECT_FORCE_NEW);
|
||||
} else {
|
||||
$this->connection = pg_pconnect($conn);
|
||||
}
|
||||
$this->connected = false;
|
||||
|
||||
if ($this->connection) {
|
||||
$this->connected = true;
|
||||
$this->_execute("SET search_path TO " . $config['schema']);
|
||||
}
|
||||
if (!empty($config['encoding'])) {
|
||||
$this->setEncoding($config['encoding']);
|
||||
}
|
||||
return $this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if PostgreSQL is enabled/loaded
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
function enabled() {
|
||||
return extension_loaded('pgsql');
|
||||
}
|
||||
/**
|
||||
* Disconnects from database.
|
||||
*
|
||||
* @return boolean True if the database could be disconnected, else false
|
||||
*/
|
||||
function disconnect() {
|
||||
if ($this->hasResult()) {
|
||||
pg_free_result($this->_result);
|
||||
}
|
||||
if (is_resource($this->connection)) {
|
||||
$this->connected = !pg_close($this->connection);
|
||||
} else {
|
||||
$this->connected = false;
|
||||
}
|
||||
return !$this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes given SQL statement.
|
||||
*
|
||||
* @param string $sql SQL statement
|
||||
* @return resource Result resource identifier
|
||||
*/
|
||||
function _execute($sql) {
|
||||
return pg_query($this->connection, $sql);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of tables in the database. If there are no tables, an error is raised and the application exits.
|
||||
*
|
||||
* @return array Array of tablenames in the database
|
||||
*/
|
||||
function listSources() {
|
||||
$cache = parent::listSources();
|
||||
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
|
||||
$schema = $this->config['schema'];
|
||||
$sql = "SELECT table_name as name FROM INFORMATION_SCHEMA.tables WHERE table_schema = '{$schema}';";
|
||||
$result = $this->fetchAll($sql, false);
|
||||
|
||||
if (!$result) {
|
||||
return array();
|
||||
} else {
|
||||
$tables = array();
|
||||
|
||||
foreach ($result as $item) {
|
||||
$tables[] = $item[0]['name'];
|
||||
}
|
||||
|
||||
parent::listSources($tables);
|
||||
return $tables;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of the fields in given table name.
|
||||
*
|
||||
* @param string $tableName Name of database table to inspect
|
||||
* @return array Fields in table. Keys are name and type
|
||||
*/
|
||||
function &describe(&$model) {
|
||||
$fields = parent::describe($model);
|
||||
$table = $this->fullTableName($model, false);
|
||||
$this->_sequenceMap[$table] = array();
|
||||
|
||||
if ($fields === null) {
|
||||
$cols = $this->fetchAll(
|
||||
"SELECT DISTINCT column_name AS name, data_type AS type, is_nullable AS null,
|
||||
column_default AS default, ordinal_position AS position, character_maximum_length AS char_length,
|
||||
character_octet_length AS oct_length FROM information_schema.columns
|
||||
WHERE table_name = " . $this->value($table) . " AND table_schema = " .
|
||||
$this->value($this->config['schema'])." ORDER BY position",
|
||||
false
|
||||
);
|
||||
|
||||
foreach ($cols as $column) {
|
||||
$colKey = array_keys($column);
|
||||
|
||||
if (isset($column[$colKey[0]]) && !isset($column[0])) {
|
||||
$column[0] = $column[$colKey[0]];
|
||||
}
|
||||
|
||||
if (isset($column[0])) {
|
||||
$c = $column[0];
|
||||
|
||||
if (!empty($c['char_length'])) {
|
||||
$length = intval($c['char_length']);
|
||||
} elseif (!empty($c['oct_length'])) {
|
||||
if ($c['type'] == 'character varying') {
|
||||
$length = null;
|
||||
$c['type'] = 'text';
|
||||
} else {
|
||||
$length = intval($c['oct_length']);
|
||||
}
|
||||
} else {
|
||||
$length = $this->length($c['type']);
|
||||
}
|
||||
$fields[$c['name']] = array(
|
||||
'type' => $this->column($c['type']),
|
||||
'null' => ($c['null'] == 'NO' ? false : true),
|
||||
'default' => preg_replace(
|
||||
"/^'(.*)'$/",
|
||||
"$1",
|
||||
preg_replace('/::.*/', '', $c['default'])
|
||||
),
|
||||
'length' => $length
|
||||
);
|
||||
if ($c['name'] == $model->primaryKey) {
|
||||
$fields[$c['name']]['key'] = 'primary';
|
||||
if ($fields[$c['name']]['type'] !== 'string') {
|
||||
$fields[$c['name']]['length'] = 11;
|
||||
}
|
||||
}
|
||||
if (
|
||||
$fields[$c['name']]['default'] == 'NULL' ||
|
||||
preg_match('/nextval\([\'"]?([\w.]+)/', $c['default'], $seq)
|
||||
) {
|
||||
$fields[$c['name']]['default'] = null;
|
||||
if (!empty($seq) && isset($seq[1])) {
|
||||
$this->_sequenceMap[$table][$c['name']] = $seq[1];
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
$this->__cacheDescription($table, $fields);
|
||||
}
|
||||
if (isset($model->sequence)) {
|
||||
$this->_sequenceMap[$table][$model->primaryKey] = $model->sequence;
|
||||
}
|
||||
return $fields;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a quoted and escaped string of $data for use in an SQL statement.
|
||||
*
|
||||
* @param string $data String to be prepared for use in an SQL statement
|
||||
* @param string $column The column into which this data will be inserted
|
||||
* @param boolean $read Value to be used in READ or WRITE context
|
||||
* @return string Quoted and escaped
|
||||
* @todo Add logic that formats/escapes data based on column type
|
||||
*/
|
||||
function value($data, $column = null, $read = true) {
|
||||
|
||||
$parent = parent::value($data, $column);
|
||||
if ($parent != null) {
|
||||
return $parent;
|
||||
}
|
||||
|
||||
if ($data === null || (is_array($data) && empty($data))) {
|
||||
return 'NULL';
|
||||
}
|
||||
if (empty($column)) {
|
||||
$column = $this->introspectType($data);
|
||||
}
|
||||
|
||||
switch($column) {
|
||||
case 'binary':
|
||||
$data = pg_escape_bytea($data);
|
||||
break;
|
||||
case 'boolean':
|
||||
if ($data === true || $data === 't' || $data === 'true') {
|
||||
return 'TRUE';
|
||||
} elseif ($data === false || $data === 'f' || $data === 'false') {
|
||||
return 'FALSE';
|
||||
}
|
||||
return (!empty($data) ? 'TRUE' : 'FALSE');
|
||||
break;
|
||||
case 'float':
|
||||
if (is_float($data)) {
|
||||
$data = sprintf('%F', $data);
|
||||
}
|
||||
case 'inet':
|
||||
case 'integer':
|
||||
case 'date':
|
||||
case 'datetime':
|
||||
case 'timestamp':
|
||||
case 'time':
|
||||
if ($data === '') {
|
||||
return $read ? 'NULL' : 'DEFAULT';
|
||||
}
|
||||
default:
|
||||
$data = pg_escape_string($data);
|
||||
break;
|
||||
}
|
||||
return "'" . $data . "'";
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a formatted error message from previous database operation.
|
||||
*
|
||||
* @return string Error message
|
||||
*/
|
||||
function lastError() {
|
||||
$error = pg_last_error($this->connection);
|
||||
return ($error) ? $error : null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of affected rows in previous database operation. If no previous operation exists, this returns false.
|
||||
*
|
||||
* @return integer Number of affected rows
|
||||
*/
|
||||
function lastAffected() {
|
||||
return ($this->_result) ? pg_affected_rows($this->_result) : false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of rows in previous resultset. If no previous resultset exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @return integer Number of rows in resultset
|
||||
*/
|
||||
function lastNumRows() {
|
||||
return ($this->_result) ? pg_num_rows($this->_result) : false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ID generated from the previous INSERT operation.
|
||||
*
|
||||
* @param string $source Name of the database table
|
||||
* @param string $field Name of the ID database field. Defaults to "id"
|
||||
* @return integer
|
||||
*/
|
||||
function lastInsertId($source, $field = 'id') {
|
||||
$seq = $this->getSequence($source, $field);
|
||||
$data = $this->fetchRow("SELECT currval('{$seq}') as max");
|
||||
return $data[0]['max'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the associated sequence for the given table/field
|
||||
*
|
||||
* @param mixed $table Either a full table name (with prefix) as a string, or a model object
|
||||
* @param string $field Name of the ID database field. Defaults to "id"
|
||||
* @return string The associated sequence name from the sequence map, defaults to "{$table}_{$field}_seq"
|
||||
*/
|
||||
function getSequence($table, $field = 'id') {
|
||||
if (is_object($table)) {
|
||||
$table = $this->fullTableName($table, false);
|
||||
}
|
||||
if (isset($this->_sequenceMap[$table]) && isset($this->_sequenceMap[$table][$field])) {
|
||||
return $this->_sequenceMap[$table][$field];
|
||||
} else {
|
||||
return "{$table}_{$field}_seq";
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes all the records in a table and drops all associated auto-increment sequences
|
||||
*
|
||||
* @param mixed $table A string or model class representing the table to be truncated
|
||||
* @param integer $reset If -1, sequences are dropped, if 0 (default), sequences are reset,
|
||||
* and if 1, sequences are not modified
|
||||
* @return boolean SQL TRUNCATE TABLE statement, false if not applicable.
|
||||
* @access public
|
||||
*/
|
||||
function truncate($table, $reset = 0) {
|
||||
if (parent::truncate($table)) {
|
||||
$table = $this->fullTableName($table, false);
|
||||
if (isset($this->_sequenceMap[$table]) && $reset !== 1) {
|
||||
foreach ($this->_sequenceMap[$table] as $field => $sequence) {
|
||||
if ($reset === 0) {
|
||||
$this->execute("ALTER SEQUENCE \"{$sequence}\" RESTART WITH 1");
|
||||
} elseif ($reset === -1) {
|
||||
$this->execute("DROP SEQUENCE IF EXISTS \"{$sequence}\"");
|
||||
}
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Prepares field names to be quoted by parent
|
||||
*
|
||||
* @param string $data
|
||||
* @return string SQL field
|
||||
*/
|
||||
function name($data) {
|
||||
if (is_string($data)) {
|
||||
$data = str_replace('"__"', '__', $data);
|
||||
}
|
||||
return parent::name($data);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates the fields list of an SQL query.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param string $alias Alias tablename
|
||||
* @param mixed $fields
|
||||
* @return array
|
||||
*/
|
||||
function fields(&$model, $alias = null, $fields = array(), $quote = true) {
|
||||
if (empty($alias)) {
|
||||
$alias = $model->alias;
|
||||
}
|
||||
$fields = parent::fields($model, $alias, $fields, false);
|
||||
|
||||
if (!$quote) {
|
||||
return $fields;
|
||||
}
|
||||
$count = count($fields);
|
||||
|
||||
if ($count >= 1 && strpos($fields[0], 'COUNT(*)') === false) {
|
||||
$result = array();
|
||||
for ($i = 0; $i < $count; $i++) {
|
||||
if (!preg_match('/^.+\\(.*\\)/', $fields[$i]) && !preg_match('/\s+AS\s+/', $fields[$i])) {
|
||||
if (substr($fields[$i], -1) == '*') {
|
||||
if (strpos($fields[$i], '.') !== false && $fields[$i] != $alias . '.*') {
|
||||
$build = explode('.', $fields[$i]);
|
||||
$AssociatedModel = $model->{$build[0]};
|
||||
} else {
|
||||
$AssociatedModel = $model;
|
||||
}
|
||||
|
||||
$_fields = $this->fields($AssociatedModel, $AssociatedModel->alias, array_keys($AssociatedModel->schema()));
|
||||
$result = array_merge($result, $_fields);
|
||||
continue;
|
||||
}
|
||||
|
||||
$prepend = '';
|
||||
if (strpos($fields[$i], 'DISTINCT') !== false) {
|
||||
$prepend = 'DISTINCT ';
|
||||
$fields[$i] = trim(str_replace('DISTINCT', '', $fields[$i]));
|
||||
}
|
||||
|
||||
if (strrpos($fields[$i], '.') === false) {
|
||||
$fields[$i] = $prepend . $this->name($alias) . '.' . $this->name($fields[$i]) . ' AS ' . $this->name($alias . '__' . $fields[$i]);
|
||||
} else {
|
||||
$build = explode('.', $fields[$i]);
|
||||
$fields[$i] = $prepend . $this->name($build[0]) . '.' . $this->name($build[1]) . ' AS ' . $this->name($build[0] . '__' . $build[1]);
|
||||
}
|
||||
} else {
|
||||
$fields[$i] = preg_replace_callback('/\(([\s\.\w]+)\)/', array(&$this, '__quoteFunctionField'), $fields[$i]);
|
||||
}
|
||||
$result[] = $fields[$i];
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
return $fields;
|
||||
}
|
||||
|
||||
/**
|
||||
* Auxiliary function to quote matched `(Model.fields)` from a preg_replace_callback call
|
||||
*
|
||||
* @param string matched string
|
||||
* @return string quoted strig
|
||||
* @access private
|
||||
*/
|
||||
function __quoteFunctionField($match) {
|
||||
$prepend = '';
|
||||
if (strpos($match[1], 'DISTINCT') !== false) {
|
||||
$prepend = 'DISTINCT ';
|
||||
$match[1] = trim(str_replace('DISTINCT', '', $match[1]));
|
||||
}
|
||||
if (strpos($match[1], '.') === false) {
|
||||
$match[1] = $this->name($match[1]);
|
||||
} else {
|
||||
$parts = explode('.', $match[1]);
|
||||
if (!Set::numeric($parts)) {
|
||||
$match[1] = $this->name($match[1]);
|
||||
}
|
||||
}
|
||||
return '(' . $prepend .$match[1] . ')';
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of the indexes in given datasource name.
|
||||
*
|
||||
* @param string $model Name of model to inspect
|
||||
* @return array Fields in table. Keys are column and unique
|
||||
*/
|
||||
function index($model) {
|
||||
$index = array();
|
||||
$table = $this->fullTableName($model, false);
|
||||
if ($table) {
|
||||
$indexes = $this->query("SELECT c2.relname, i.indisprimary, i.indisunique, i.indisclustered, i.indisvalid, pg_catalog.pg_get_indexdef(i.indexrelid, 0, true) as statement, c2.reltablespace
|
||||
FROM pg_catalog.pg_class c, pg_catalog.pg_class c2, pg_catalog.pg_index i
|
||||
WHERE c.oid = (
|
||||
SELECT c.oid
|
||||
FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
|
||||
WHERE c.relname ~ '^(" . $table . ")$'
|
||||
AND pg_catalog.pg_table_is_visible(c.oid)
|
||||
AND n.nspname ~ '^(" . $this->config['schema'] . ")$'
|
||||
)
|
||||
AND c.oid = i.indrelid AND i.indexrelid = c2.oid
|
||||
ORDER BY i.indisprimary DESC, i.indisunique DESC, c2.relname", false);
|
||||
foreach ($indexes as $i => $info) {
|
||||
$key = array_pop($info);
|
||||
if ($key['indisprimary']) {
|
||||
$key['relname'] = 'PRIMARY';
|
||||
}
|
||||
$col = array();
|
||||
preg_match('/\(([^\)]+)\)/', $key['statement'], $indexColumns);
|
||||
$parsedColumn = $indexColumns[1];
|
||||
if (strpos($indexColumns[1], ',') !== false) {
|
||||
$parsedColumn = explode(', ', $indexColumns[1]);
|
||||
}
|
||||
$index[$key['relname']]['unique'] = $key['indisunique'];
|
||||
$index[$key['relname']]['column'] = $parsedColumn;
|
||||
}
|
||||
}
|
||||
return $index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Alter the Schema of a table.
|
||||
*
|
||||
* @param array $compare Results of CakeSchema::compare()
|
||||
* @param string $table name of the table
|
||||
* @access public
|
||||
* @return array
|
||||
*/
|
||||
function alterSchema($compare, $table = null) {
|
||||
if (!is_array($compare)) {
|
||||
return false;
|
||||
}
|
||||
$out = '';
|
||||
$colList = array();
|
||||
foreach ($compare as $curTable => $types) {
|
||||
$indexes = $colList = array();
|
||||
if (!$table || $table == $curTable) {
|
||||
$out .= 'ALTER TABLE ' . $this->fullTableName($curTable) . " \n";
|
||||
foreach ($types as $type => $column) {
|
||||
if (isset($column['indexes'])) {
|
||||
$indexes[$type] = $column['indexes'];
|
||||
unset($column['indexes']);
|
||||
}
|
||||
switch ($type) {
|
||||
case 'add':
|
||||
foreach ($column as $field => $col) {
|
||||
$col['name'] = $field;
|
||||
$alter = 'ADD COLUMN '.$this->buildColumn($col);
|
||||
if (isset($col['after'])) {
|
||||
$alter .= ' AFTER '. $this->name($col['after']);
|
||||
}
|
||||
$colList[] = $alter;
|
||||
}
|
||||
break;
|
||||
case 'drop':
|
||||
foreach ($column as $field => $col) {
|
||||
$col['name'] = $field;
|
||||
$colList[] = 'DROP COLUMN '.$this->name($field);
|
||||
}
|
||||
break;
|
||||
case 'change':
|
||||
foreach ($column as $field => $col) {
|
||||
if (!isset($col['name'])) {
|
||||
$col['name'] = $field;
|
||||
}
|
||||
$fieldName = $this->name($field);
|
||||
|
||||
$default = isset($col['default']) ? $col['default'] : null;
|
||||
$nullable = isset($col['null']) ? $col['null'] : null;
|
||||
unset($col['default'], $col['null']);
|
||||
$colList[] = 'ALTER COLUMN '. $fieldName .' TYPE ' . str_replace($fieldName, '', $this->buildColumn($col));
|
||||
|
||||
if (isset($nullable)) {
|
||||
$nullable = ($nullable) ? 'DROP NOT NULL' : 'SET NOT NULL';
|
||||
$colList[] = 'ALTER COLUMN '. $fieldName .' ' . $nullable;
|
||||
}
|
||||
|
||||
if (isset($default)) {
|
||||
$colList[] = 'ALTER COLUMN '. $fieldName .' SET DEFAULT ' . $this->value($default, $col['type']);
|
||||
} else {
|
||||
$colList[] = 'ALTER COLUMN '. $fieldName .' DROP DEFAULT';
|
||||
}
|
||||
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (isset($indexes['drop']['PRIMARY'])) {
|
||||
$colList[] = 'DROP CONSTRAINT ' . $curTable . '_pkey';
|
||||
}
|
||||
if (isset($indexes['add']['PRIMARY'])) {
|
||||
$cols = $indexes['add']['PRIMARY']['column'];
|
||||
if (is_array($cols)) {
|
||||
$cols = implode(', ', $cols);
|
||||
}
|
||||
$colList[] = 'ADD PRIMARY KEY (' . $cols . ')';
|
||||
}
|
||||
|
||||
if (!empty($colList)) {
|
||||
$out .= "\t" . implode(",\n\t", $colList) . ";\n\n";
|
||||
} else {
|
||||
$out = '';
|
||||
}
|
||||
$out .= implode(";\n\t", $this->_alterIndexes($curTable, $indexes));
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate PostgreSQL index alteration statements for a table.
|
||||
*
|
||||
* @param string $table Table to alter indexes for
|
||||
* @param array $new Indexes to add and drop
|
||||
* @return array Index alteration statements
|
||||
*/
|
||||
function _alterIndexes($table, $indexes) {
|
||||
$alter = array();
|
||||
if (isset($indexes['drop'])) {
|
||||
foreach($indexes['drop'] as $name => $value) {
|
||||
$out = 'DROP ';
|
||||
if ($name == 'PRIMARY') {
|
||||
continue;
|
||||
} else {
|
||||
$out .= 'INDEX ' . $name;
|
||||
}
|
||||
$alter[] = $out;
|
||||
}
|
||||
}
|
||||
if (isset($indexes['add'])) {
|
||||
foreach ($indexes['add'] as $name => $value) {
|
||||
$out = 'CREATE ';
|
||||
if ($name == 'PRIMARY') {
|
||||
continue;
|
||||
} else {
|
||||
if (!empty($value['unique'])) {
|
||||
$out .= 'UNIQUE ';
|
||||
}
|
||||
$out .= 'INDEX ';
|
||||
}
|
||||
if (is_array($value['column'])) {
|
||||
$out .= $name . ' ON ' . $table . ' (' . implode(', ', array_map(array(&$this, 'name'), $value['column'])) . ')';
|
||||
} else {
|
||||
$out .= $name . ' ON ' . $table . ' (' . $this->name($value['column']) . ')';
|
||||
}
|
||||
$alter[] = $out;
|
||||
}
|
||||
}
|
||||
return $alter;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a limit statement in the correct format for the particular database.
|
||||
*
|
||||
* @param integer $limit Limit of results returned
|
||||
* @param integer $offset Offset from which to start results
|
||||
* @return string SQL limit/offset statement
|
||||
*/
|
||||
function limit($limit, $offset = null) {
|
||||
if ($limit) {
|
||||
$rt = '';
|
||||
if (!strpos(strtolower($limit), 'limit') || strpos(strtolower($limit), 'limit') === 0) {
|
||||
$rt = ' LIMIT';
|
||||
}
|
||||
|
||||
$rt .= ' ' . $limit;
|
||||
if ($offset) {
|
||||
$rt .= ' OFFSET ' . $offset;
|
||||
}
|
||||
|
||||
return $rt;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts database-layer column types to basic types
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return string Abstract column type (i.e. "string")
|
||||
*/
|
||||
function column($real) {
|
||||
if (is_array($real)) {
|
||||
$col = $real['name'];
|
||||
if (isset($real['limit'])) {
|
||||
$col .= '(' . $real['limit'] . ')';
|
||||
}
|
||||
return $col;
|
||||
}
|
||||
|
||||
$col = str_replace(')', '', $real);
|
||||
$limit = null;
|
||||
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $limit) = explode('(', $col);
|
||||
}
|
||||
|
||||
$floats = array(
|
||||
'float', 'float4', 'float8', 'double', 'double precision', 'decimal', 'real', 'numeric'
|
||||
);
|
||||
|
||||
switch (true) {
|
||||
case (in_array($col, array('date', 'time', 'inet', 'boolean'))):
|
||||
return $col;
|
||||
case (strpos($col, 'timestamp') !== false):
|
||||
return 'datetime';
|
||||
case (strpos($col, 'time') === 0):
|
||||
return 'time';
|
||||
case (strpos($col, 'int') !== false && $col != 'interval'):
|
||||
return 'integer';
|
||||
case (strpos($col, 'char') !== false || $col == 'uuid'):
|
||||
return 'string';
|
||||
case (strpos($col, 'text') !== false):
|
||||
return 'text';
|
||||
case (strpos($col, 'bytea') !== false):
|
||||
return 'binary';
|
||||
case (in_array($col, $floats)):
|
||||
return 'float';
|
||||
default:
|
||||
return 'text';
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the length of a database-native column description, or null if no length
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return int An integer representing the length of the column
|
||||
*/
|
||||
function length($real) {
|
||||
$col = str_replace(array(')', 'unsigned'), '', $real);
|
||||
$limit = null;
|
||||
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $limit) = explode('(', $col);
|
||||
}
|
||||
if ($col == 'uuid') {
|
||||
return 36;
|
||||
}
|
||||
if ($limit != null) {
|
||||
return intval($limit);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Enter description here...
|
||||
*
|
||||
* @param unknown_type $results
|
||||
*/
|
||||
function resultSet(&$results) {
|
||||
$this->results =& $results;
|
||||
$this->map = array();
|
||||
$num_fields = pg_num_fields($results);
|
||||
$index = 0;
|
||||
$j = 0;
|
||||
|
||||
while ($j < $num_fields) {
|
||||
$columnName = pg_field_name($results, $j);
|
||||
|
||||
if (strpos($columnName, '__')) {
|
||||
$parts = explode('__', $columnName);
|
||||
$this->map[$index++] = array($parts[0], $parts[1]);
|
||||
} else {
|
||||
$this->map[$index++] = array(0, $columnName);
|
||||
}
|
||||
$j++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetches the next row from the current result set
|
||||
*
|
||||
* @return unknown
|
||||
*/
|
||||
function fetchResult() {
|
||||
if ($row = pg_fetch_row($this->results)) {
|
||||
$resultRow = array();
|
||||
|
||||
foreach ($row as $index => $field) {
|
||||
list($table, $column) = $this->map[$index];
|
||||
$type = pg_field_type($this->results, $index);
|
||||
|
||||
switch ($type) {
|
||||
case 'bool':
|
||||
$resultRow[$table][$column] = $this->boolean($row[$index], false);
|
||||
break;
|
||||
case 'binary':
|
||||
case 'bytea':
|
||||
$resultRow[$table][$column] = pg_unescape_bytea($row[$index]);
|
||||
break;
|
||||
default:
|
||||
$resultRow[$table][$column] = $row[$index];
|
||||
break;
|
||||
}
|
||||
}
|
||||
return $resultRow;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Translates between PHP boolean values and PostgreSQL boolean values
|
||||
*
|
||||
* @param mixed $data Value to be translated
|
||||
* @param boolean $quote True to quote value, false otherwise
|
||||
* @return mixed Converted boolean value
|
||||
*/
|
||||
function boolean($data, $quote = true) {
|
||||
switch (true) {
|
||||
case ($data === true || $data === false):
|
||||
return $data;
|
||||
case ($data === 't' || $data === 'f'):
|
||||
return ($data === 't');
|
||||
case ($data === 'true' || $data === 'false'):
|
||||
return ($data === 'true');
|
||||
case ($data === 'TRUE' || $data === 'FALSE'):
|
||||
return ($data === 'TRUE');
|
||||
default:
|
||||
return (bool)$data;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the database encoding
|
||||
*
|
||||
* @param mixed $enc Database encoding
|
||||
* @return boolean True on success, false on failure
|
||||
*/
|
||||
function setEncoding($enc) {
|
||||
return pg_set_client_encoding($this->connection, $enc) == 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the database encoding
|
||||
*
|
||||
* @return string The database encoding
|
||||
*/
|
||||
function getEncoding() {
|
||||
return pg_client_encoding($this->connection);
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a Postgres-native column schema string
|
||||
*
|
||||
* @param array $column An array structured like the following:
|
||||
* array('name'=>'value', 'type'=>'value'[, options]),
|
||||
* where options can be 'default', 'length', or 'key'.
|
||||
* @return string
|
||||
*/
|
||||
function buildColumn($column) {
|
||||
$col = $this->columns[$column['type']];
|
||||
if (!isset($col['length']) && !isset($col['limit'])) {
|
||||
unset($column['length']);
|
||||
}
|
||||
$out = preg_replace('/integer\([0-9]+\)/', 'integer', parent::buildColumn($column));
|
||||
$out = str_replace('integer serial', 'serial', $out);
|
||||
if (strpos($out, 'timestamp DEFAULT')) {
|
||||
if (isset($column['null']) && $column['null']) {
|
||||
$out = str_replace('DEFAULT NULL', '', $out);
|
||||
} else {
|
||||
$out = str_replace('DEFAULT NOT NULL', '', $out);
|
||||
}
|
||||
}
|
||||
if (strpos($out, 'DEFAULT DEFAULT')) {
|
||||
if (isset($column['null']) && $column['null']) {
|
||||
$out = str_replace('DEFAULT DEFAULT', 'DEFAULT NULL', $out);
|
||||
} elseif (in_array($column['type'], array('integer', 'float'))) {
|
||||
$out = str_replace('DEFAULT DEFAULT', 'DEFAULT 0', $out);
|
||||
} elseif ($column['type'] == 'boolean') {
|
||||
$out = str_replace('DEFAULT DEFAULT', 'DEFAULT FALSE', $out);
|
||||
}
|
||||
}
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* Format indexes for create table
|
||||
*
|
||||
* @param array $indexes
|
||||
* @param string $table
|
||||
* @return string
|
||||
*/
|
||||
function buildIndex($indexes, $table = null) {
|
||||
$join = array();
|
||||
if (!is_array($indexes)) {
|
||||
return array();
|
||||
}
|
||||
foreach ($indexes as $name => $value) {
|
||||
if ($name == 'PRIMARY') {
|
||||
$out = 'PRIMARY KEY (' . $this->name($value['column']) . ')';
|
||||
} else {
|
||||
$out = 'CREATE ';
|
||||
if (!empty($value['unique'])) {
|
||||
$out .= 'UNIQUE ';
|
||||
}
|
||||
if (is_array($value['column'])) {
|
||||
$value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column']));
|
||||
} else {
|
||||
$value['column'] = $this->name($value['column']);
|
||||
}
|
||||
$out .= "INDEX {$name} ON {$table}({$value['column']});";
|
||||
}
|
||||
$join[] = $out;
|
||||
}
|
||||
return $join;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overrides DboSource::renderStatement to handle schema generation with Postgres-style indexes
|
||||
*
|
||||
* @param string $type
|
||||
* @param array $data
|
||||
* @return string
|
||||
*/
|
||||
function renderStatement($type, $data) {
|
||||
switch (strtolower($type)) {
|
||||
case 'schema':
|
||||
extract($data);
|
||||
|
||||
foreach ($indexes as $i => $index) {
|
||||
if (preg_match('/PRIMARY KEY/', $index)) {
|
||||
unset($indexes[$i]);
|
||||
$columns[] = $index;
|
||||
break;
|
||||
}
|
||||
}
|
||||
$join = array('columns' => ",\n\t", 'indexes' => "\n");
|
||||
|
||||
foreach (array('columns', 'indexes') as $var) {
|
||||
if (is_array(${$var})) {
|
||||
${$var} = implode($join[$var], array_filter(${$var}));
|
||||
}
|
||||
}
|
||||
return "CREATE TABLE {$table} (\n\t{$columns}\n);\n{$indexes}";
|
||||
break;
|
||||
default:
|
||||
return parent::renderStatement($type, $data);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,623 @@
|
||||
<?php
|
||||
/**
|
||||
* SQLite layer for DBO
|
||||
*
|
||||
* PHP versions 4 and 5
|
||||
*
|
||||
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
|
||||
* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
*
|
||||
* Licensed under The MIT License
|
||||
* Redistributions of files must retain the above copyright notice.
|
||||
*
|
||||
* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
|
||||
* @link http://cakephp.org CakePHP(tm) Project
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
* @since CakePHP(tm) v 0.9.0
|
||||
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||||
*/
|
||||
|
||||
/**
|
||||
* DBO implementation for the SQLite DBMS.
|
||||
*
|
||||
* Long description for class
|
||||
*
|
||||
* @package cake
|
||||
* @subpackage cake.cake.libs.model.datasources.dbo
|
||||
*/
|
||||
class DboSqlite extends DboSource {
|
||||
|
||||
/**
|
||||
* Datasource Description
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
var $description = "SQLite DBO Driver";
|
||||
|
||||
/**
|
||||
* Opening quote for quoted identifiers
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
var $startQuote = '"';
|
||||
|
||||
/**
|
||||
* Closing quote for quoted identifiers
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
var $endQuote = '"';
|
||||
|
||||
/**
|
||||
* Keeps the transaction statistics of CREATE/UPDATE/DELETE queries
|
||||
*
|
||||
* @var array
|
||||
* @access protected
|
||||
*/
|
||||
var $_queryStats = array();
|
||||
|
||||
/**
|
||||
* Base configuration settings for SQLite driver
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
var $_baseConfig = array(
|
||||
'persistent' => true,
|
||||
'database' => null
|
||||
);
|
||||
|
||||
/**
|
||||
* Index of basic SQL commands
|
||||
*
|
||||
* @var array
|
||||
* @access protected
|
||||
*/
|
||||
var $_commands = array(
|
||||
'begin' => 'BEGIN TRANSACTION',
|
||||
'commit' => 'COMMIT TRANSACTION',
|
||||
'rollback' => 'ROLLBACK TRANSACTION'
|
||||
);
|
||||
|
||||
/**
|
||||
* SQLite column definition
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
var $columns = array(
|
||||
'primary_key' => array('name' => 'integer primary key'),
|
||||
'string' => array('name' => 'varchar', 'limit' => '255'),
|
||||
'text' => array('name' => 'text'),
|
||||
'integer' => array('name' => 'integer', 'limit' => 11, 'formatter' => 'intval'),
|
||||
'float' => array('name' => 'float', 'formatter' => 'floatval'),
|
||||
'datetime' => array('name' => 'datetime', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'timestamp' => array('name' => 'timestamp', 'format' => 'Y-m-d H:i:s', 'formatter' => 'date'),
|
||||
'time' => array('name' => 'time', 'format' => 'H:i:s', 'formatter' => 'date'),
|
||||
'date' => array('name' => 'date', 'format' => 'Y-m-d', 'formatter' => 'date'),
|
||||
'binary' => array('name' => 'blob'),
|
||||
'boolean' => array('name' => 'boolean')
|
||||
);
|
||||
|
||||
/**
|
||||
* List of engine specific additional field parameters used on table creating
|
||||
*
|
||||
* @var array
|
||||
* @access public
|
||||
*/
|
||||
var $fieldParameters = array(
|
||||
'collate' => array(
|
||||
'value' => 'COLLATE',
|
||||
'quote' => false,
|
||||
'join' => ' ',
|
||||
'column' => 'Collate',
|
||||
'position' => 'afterDefault',
|
||||
'options' => array(
|
||||
'BINARY', 'NOCASE', 'RTRIM'
|
||||
)
|
||||
),
|
||||
);
|
||||
|
||||
/**
|
||||
* Connects to the database using config['database'] as a filename.
|
||||
*
|
||||
* @param array $config Configuration array for connecting
|
||||
* @return mixed
|
||||
*/
|
||||
function connect() {
|
||||
$config = $this->config;
|
||||
|
||||
if (!$config['persistent']) {
|
||||
$this->connection = sqlite_open($config['database']);
|
||||
} else {
|
||||
$this->connection = sqlite_popen($config['database']);
|
||||
}
|
||||
$this->connected = is_resource($this->connection);
|
||||
|
||||
if ($this->connected) {
|
||||
$this->_execute('PRAGMA count_changes = 1;');
|
||||
}
|
||||
return $this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check that SQLite is enabled/installed
|
||||
*
|
||||
* @return boolean
|
||||
*/
|
||||
function enabled() {
|
||||
return extension_loaded('sqlite');
|
||||
}
|
||||
/**
|
||||
* Disconnects from database.
|
||||
*
|
||||
* @return boolean True if the database could be disconnected, else false
|
||||
*/
|
||||
function disconnect() {
|
||||
@sqlite_close($this->connection);
|
||||
$this->connected = false;
|
||||
return $this->connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes given SQL statement.
|
||||
*
|
||||
* @param string $sql SQL statement
|
||||
* @return resource Result resource identifier
|
||||
*/
|
||||
function _execute($sql) {
|
||||
$result = sqlite_query($this->connection, $sql);
|
||||
|
||||
if (preg_match('/^(INSERT|UPDATE|DELETE)/', $sql)) {
|
||||
$this->resultSet($result);
|
||||
list($this->_queryStats) = $this->fetchResult();
|
||||
}
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overrides DboSource::execute() to correctly handle query statistics
|
||||
*
|
||||
* @param string $sql
|
||||
* @return unknown
|
||||
*/
|
||||
function execute($sql) {
|
||||
$result = parent::execute($sql);
|
||||
$this->_queryStats = array();
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of tables in the database. If there are no tables, an error is raised and the application exits.
|
||||
*
|
||||
* @return array Array of tablenames in the database
|
||||
*/
|
||||
function listSources() {
|
||||
$cache = parent::listSources();
|
||||
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
$result = $this->fetchAll("SELECT name FROM sqlite_master WHERE type='table' ORDER BY name;", false);
|
||||
|
||||
if (empty($result)) {
|
||||
return array();
|
||||
} else {
|
||||
$tables = array();
|
||||
foreach ($result as $table) {
|
||||
$tables[] = $table[0]['name'];
|
||||
}
|
||||
parent::listSources($tables);
|
||||
return $tables;
|
||||
}
|
||||
return array();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an array of the fields in given table name.
|
||||
*
|
||||
* @param string $tableName Name of database table to inspect
|
||||
* @return array Fields in table. Keys are name and type
|
||||
*/
|
||||
function describe(&$model) {
|
||||
$cache = parent::describe($model);
|
||||
if ($cache != null) {
|
||||
return $cache;
|
||||
}
|
||||
$fields = array();
|
||||
$result = $this->fetchAll('PRAGMA table_info(' . $this->fullTableName($model) . ')');
|
||||
|
||||
foreach ($result as $column) {
|
||||
$fields[$column[0]['name']] = array(
|
||||
'type' => $this->column($column[0]['type']),
|
||||
'null' => !$column[0]['notnull'],
|
||||
'default' => $column[0]['dflt_value'],
|
||||
'length' => $this->length($column[0]['type'])
|
||||
);
|
||||
if ($column[0]['pk'] == 1) {
|
||||
$colLength = $this->length($column[0]['type']);
|
||||
$fields[$column[0]['name']] = array(
|
||||
'type' => $fields[$column[0]['name']]['type'],
|
||||
'null' => false,
|
||||
'default' => $column[0]['dflt_value'],
|
||||
'key' => $this->index['PRI'],
|
||||
'length'=> ($colLength != null) ? $colLength : 11
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
$this->__cacheDescription($model->tablePrefix . $model->table, $fields);
|
||||
return $fields;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a quoted and escaped string of $data for use in an SQL statement.
|
||||
*
|
||||
* @param string $data String to be prepared for use in an SQL statement
|
||||
* @return string Quoted and escaped
|
||||
*/
|
||||
function value($data, $column = null, $safe = false) {
|
||||
$parent = parent::value($data, $column, $safe);
|
||||
|
||||
if ($parent != null) {
|
||||
return $parent;
|
||||
}
|
||||
if ($data === null) {
|
||||
return 'NULL';
|
||||
}
|
||||
if ($data === '' && $column !== 'integer' && $column !== 'float' && $column !== 'boolean') {
|
||||
return "''";
|
||||
}
|
||||
switch ($column) {
|
||||
case 'boolean':
|
||||
$data = $this->boolean((bool)$data);
|
||||
break;
|
||||
case 'integer':
|
||||
case 'float':
|
||||
if ($data === '') {
|
||||
return 'NULL';
|
||||
}
|
||||
default:
|
||||
$data = sqlite_escape_string($data);
|
||||
break;
|
||||
}
|
||||
return "'" . $data . "'";
|
||||
}
|
||||
|
||||
/**
|
||||
* Generates and executes an SQL UPDATE statement for given model, fields, and values.
|
||||
*
|
||||
* @param Model $model
|
||||
* @param array $fields
|
||||
* @param array $values
|
||||
* @param mixed $conditions
|
||||
* @return array
|
||||
*/
|
||||
function update(&$model, $fields = array(), $values = null, $conditions = null) {
|
||||
if (empty($values) && !empty($fields)) {
|
||||
foreach ($fields as $field => $value) {
|
||||
if (strpos($field, $model->alias . '.') !== false) {
|
||||
unset($fields[$field]);
|
||||
$field = str_replace($model->alias . '.', "", $field);
|
||||
$field = str_replace($model->alias . '.', "", $field);
|
||||
$fields[$field] = $value;
|
||||
}
|
||||
}
|
||||
}
|
||||
$result = parent::update($model, $fields, $values, $conditions);
|
||||
return $result;
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes all the records in a table and resets the count of the auto-incrementing
|
||||
* primary key, where applicable.
|
||||
*
|
||||
* @param mixed $table A string or model class representing the table to be truncated
|
||||
* @return boolean SQL TRUNCATE TABLE statement, false if not applicable.
|
||||
* @access public
|
||||
*/
|
||||
function truncate($table) {
|
||||
return $this->execute('DELETE From ' . $this->fullTableName($table));
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a formatted error message from previous database operation.
|
||||
*
|
||||
* @return string Error message
|
||||
*/
|
||||
function lastError() {
|
||||
$error = sqlite_last_error($this->connection);
|
||||
if ($error) {
|
||||
return $error.': '.sqlite_error_string($error);
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of affected rows in previous database operation. If no previous operation exists, this returns false.
|
||||
*
|
||||
* @return integer Number of affected rows
|
||||
*/
|
||||
function lastAffected() {
|
||||
if (!empty($this->_queryStats)) {
|
||||
foreach (array('rows inserted', 'rows updated', 'rows deleted') as $key) {
|
||||
if (array_key_exists($key, $this->_queryStats)) {
|
||||
return $this->_queryStats[$key];
|
||||
}
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns number of rows in previous resultset. If no previous resultset exists,
|
||||
* this returns false.
|
||||
*
|
||||
* @return integer Number of rows in resultset
|
||||
*/
|
||||
function lastNumRows() {
|
||||
if ($this->hasResult()) {
|
||||
sqlite_num_rows($this->_result);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the ID generated from the previous INSERT operation.
|
||||
*
|
||||
* @return int
|
||||
*/
|
||||
function lastInsertId() {
|
||||
return sqlite_last_insert_rowid($this->connection);
|
||||
}
|
||||
|
||||
/**
|
||||
* Converts database-layer column types to basic types
|
||||
*
|
||||
* @param string $real Real database-layer column type (i.e. "varchar(255)")
|
||||
* @return string Abstract column type (i.e. "string")
|
||||
*/
|
||||
function column($real) {
|
||||
if (is_array($real)) {
|
||||
$col = $real['name'];
|
||||
if (isset($real['limit'])) {
|
||||
$col .= '('.$real['limit'].')';
|
||||
}
|
||||
return $col;
|
||||
}
|
||||
|
||||
$col = strtolower(str_replace(')', '', $real));
|
||||
$limit = null;
|
||||
if (strpos($col, '(') !== false) {
|
||||
list($col, $limit) = explode('(', $col);
|
||||
}
|
||||
|
||||
if (in_array($col, array('text', 'integer', 'float', 'boolean', 'timestamp', 'date', 'datetime', 'time'))) {
|
||||
return $col;
|
||||
}
|
||||
if (strpos($col, 'varchar') !== false) {
|
||||
return 'string';
|
||||
}
|
||||
if (in_array($col, array('blob', 'clob'))) {
|
||||
return 'binary';
|
||||
}
|
||||
if (strpos($col, 'numeric') !== false) {
|
||||
return 'float';
|
||||
}
|
||||
return 'text';
|
||||
}
|
||||
|
||||
/**
|
||||
* Enter description here...
|
||||
*
|
||||
* @param unknown_type $results
|
||||
*/
|
||||
function resultSet(&$results) {
|
||||
$this->results =& $results;
|
||||
$this->map = array();
|
||||
$fieldCount = sqlite_num_fields($results);
|
||||
$index = $j = 0;
|
||||
|
||||
while ($j < $fieldCount) {
|
||||
$columnName = str_replace('"', '', sqlite_field_name($results, $j));
|
||||
|
||||
if (strpos($columnName, '.')) {
|
||||
$parts = explode('.', $columnName);
|
||||
$this->map[$index++] = array($parts[0], $parts[1]);
|
||||
} else {
|
||||
$this->map[$index++] = array(0, $columnName);
|
||||
}
|
||||
$j++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetches the next row from the current result set
|
||||
*
|
||||
* @return unknown
|
||||
*/
|
||||
function fetchResult() {
|
||||
if ($row = sqlite_fetch_array($this->results, SQLITE_ASSOC)) {
|
||||
$resultRow = array();
|
||||
$i = 0;
|
||||
|
||||
foreach ($row as $index => $field) {
|
||||
if (strpos($index, '.')) {
|
||||
list($table, $column) = explode('.', str_replace('"', '', $index));
|
||||
$resultRow[$table][$column] = $row[$index];
|
||||
} else {
|
||||
$resultRow[0][str_replace('"', '', $index)] = $row[$index];
|
||||
}
|
||||
$i++;
|
||||
}
|
||||
return $resultRow;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a limit statement in the correct format for the particular database.
|
||||
*
|
||||
* @param integer $limit Limit of results returned
|
||||
* @param integer $offset Offset from which to start results
|
||||
* @return string SQL limit/offset statement
|
||||
*/
|
||||
function limit($limit, $offset = null) {
|
||||
if ($limit) {
|
||||
$rt = '';
|
||||
if (!strpos(strtolower($limit), 'limit') || strpos(strtolower($limit), 'limit') === 0) {
|
||||
$rt = ' LIMIT';
|
||||
}
|
||||
$rt .= ' ' . $limit;
|
||||
if ($offset) {
|
||||
$rt .= ' OFFSET ' . $offset;
|
||||
}
|
||||
return $rt;
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a database-native column schema string
|
||||
*
|
||||
* @param array $column An array structured like the following: array('name'=>'value', 'type'=>'value'[, options]),
|
||||
* where options can be 'default', 'length', or 'key'.
|
||||
* @return string
|
||||
*/
|
||||
function buildColumn($column) {
|
||||
$name = $type = null;
|
||||
$column = array_merge(array('null' => true), $column);
|
||||
extract($column);
|
||||
|
||||
if (empty($name) || empty($type)) {
|
||||
trigger_error(__('Column name or type not defined in schema', true), E_USER_WARNING);
|
||||
return null;
|
||||
}
|
||||
|
||||
if (!isset($this->columns[$type])) {
|
||||
trigger_error(sprintf(__('Column type %s does not exist', true), $type), E_USER_WARNING);
|
||||
return null;
|
||||
}
|
||||
|
||||
$real = $this->columns[$type];
|
||||
$out = $this->name($name) . ' ' . $real['name'];
|
||||
if (isset($column['key']) && $column['key'] == 'primary' && $type == 'integer') {
|
||||
return $this->name($name) . ' ' . $this->columns['primary_key']['name'];
|
||||
}
|
||||
return parent::buildColumn($column);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the database encoding
|
||||
*
|
||||
* @param string $enc Database encoding
|
||||
*/
|
||||
function setEncoding($enc) {
|
||||
if (!in_array($enc, array("UTF-8", "UTF-16", "UTF-16le", "UTF-16be"))) {
|
||||
return false;
|
||||
}
|
||||
return $this->_execute("PRAGMA encoding = \"{$enc}\"") !== false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the database encoding
|
||||
*
|
||||
* @return string The database encoding
|
||||
*/
|
||||
function getEncoding() {
|
||||
return $this->fetchRow('PRAGMA encoding');
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes redundant primary key indexes, as they are handled in the column def of the key.
|
||||
*
|
||||
* @param array $indexes
|
||||
* @param string $table
|
||||
* @return string
|
||||
*/
|
||||
function buildIndex($indexes, $table = null) {
|
||||
$join = array();
|
||||
|
||||
foreach ($indexes as $name => $value) {
|
||||
|
||||
if ($name == 'PRIMARY') {
|
||||
continue;
|
||||
}
|
||||
$out = 'CREATE ';
|
||||
|
||||
if (!empty($value['unique'])) {
|
||||
$out .= 'UNIQUE ';
|
||||
}
|
||||
if (is_array($value['column'])) {
|
||||
$value['column'] = implode(', ', array_map(array(&$this, 'name'), $value['column']));
|
||||
} else {
|
||||
$value['column'] = $this->name($value['column']);
|
||||
}
|
||||
$out .= "INDEX {$name} ON {$table}({$value['column']});";
|
||||
$join[] = $out;
|
||||
}
|
||||
return $join;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overrides DboSource::index to handle SQLite indexe introspection
|
||||
* Returns an array of the indexes in given table name.
|
||||
*
|
||||
* @param string $model Name of model to inspect
|
||||
* @return array Fields in table. Keys are column and unique
|
||||
*/
|
||||
function index(&$model) {
|
||||
$index = array();
|
||||
$table = $this->fullTableName($model);
|
||||
if ($table) {
|
||||
$indexes = $this->query('PRAGMA index_list(' . $table . ')');
|
||||
$tableInfo = $this->query('PRAGMA table_info(' . $table . ')');
|
||||
foreach ($indexes as $i => $info) {
|
||||
$key = array_pop($info);
|
||||
$keyInfo = $this->query('PRAGMA index_info("' . $key['name'] . '")');
|
||||
foreach ($keyInfo as $keyCol) {
|
||||
if (!isset($index[$key['name']])) {
|
||||
$col = array();
|
||||
if (preg_match('/autoindex/', $key['name'])) {
|
||||
$key['name'] = 'PRIMARY';
|
||||
}
|
||||
$index[$key['name']]['column'] = $keyCol[0]['name'];
|
||||
$index[$key['name']]['unique'] = intval($key['unique'] == 1);
|
||||
} else {
|
||||
if (!is_array($index[$key['name']]['column'])) {
|
||||
$col[] = $index[$key['name']]['column'];
|
||||
}
|
||||
$col[] = $keyCol[0]['name'];
|
||||
$index[$key['name']]['column'] = $col;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return $index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Overrides DboSource::renderStatement to handle schema generation with SQLite-style indexes
|
||||
*
|
||||
* @param string $type
|
||||
* @param array $data
|
||||
* @return string
|
||||
*/
|
||||
function renderStatement($type, $data) {
|
||||
switch (strtolower($type)) {
|
||||
case 'schema':
|
||||
extract($data);
|
||||
|
||||
foreach (array('columns', 'indexes') as $var) {
|
||||
if (is_array(${$var})) {
|
||||
${$var} = "\t" . implode(",\n\t", array_filter(${$var}));
|
||||
}
|
||||
}
|
||||
return "CREATE TABLE {$table} (\n{$columns});\n{$indexes}";
|
||||
break;
|
||||
default:
|
||||
return parent::renderStatement($type, $data);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user