mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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c7d02c8068
Updated headers. beginning to clean up files that are not used in this version of Cake git-svn-id: https://svn.cakephp.org/repo/trunk/cake@1593 3807eeeb-6ff5-0310-8944-8be069107fe0
222 lines
No EOL
5.6 KiB
PHP
222 lines
No EOL
5.6 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* PostgreSQL layer for DBO.
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*
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* Long description for file
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*
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* PHP versions 4 and 5
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*
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* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright (c) 2005, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright (c) 2005, Cake Software Foundation, Inc.
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
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* @package cake
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* @subpackage cake.cake.libs.model.dbo
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* @since CakePHP v 0.9.1.114
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* Include DBO.
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*/
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uses('model'.DS.'dbo'.DS.'dbo');
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/**
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* PostgreSQL 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.dbo
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* @since CakePHP v 0.9.1.114
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*/
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class DBO_Postgres extends DBO
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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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* @param array $config Configuration array for connecting
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* @return True if successfully connected.
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*/
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function connect ($config)
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{
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if ($config)
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{
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$this->config = $config;
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$this->_conn = $config['connect']("host={$config['host']} dbname={$config['database']} user={$config['login']} password={$config['password']}");
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}
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$this->connected = $this->_conn? true: false;
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if($this->connected)
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return true;
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else
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{
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//die('Could not connect to DB.');
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}
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}
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/**
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* Disconnects from database.
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*
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* @return boolean True if the database could be disconnected, else false
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*/
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function disconnect ()
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{
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return pg_close($this->_conn);
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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 $sql SQL statement
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* @return resource Result resource identifier
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*/
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function execute ($sql)
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{
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return pg_query($this->_conn, $sql);
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}
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/**
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* Returns a row from given resultset as an array .
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*
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* @return array The fetched row as an array
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*/
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function fetchRow ()
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{
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return pg_fetch_array($this->_result);
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}
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/**
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* Returns an array of tables in the database. If there are no tables, an error is raised and the application exits.
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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 tablesList ()
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{
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$sql = "SELECT a.relname AS name
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FROM pg_class a, pg_user b
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WHERE ( relkind = 'r') and relname !~ '^pg_' AND relname !~ '^sql_'
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AND relname !~ '^xin[vx][0-9]+' AND b.usesysid = a.relowner
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AND NOT (EXISTS (SELECT viewname FROM pg_views WHERE viewname=a.relname));";
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$result = $this->all($sql);
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if (!$result)
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{
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trigger_error(ERROR_NO_TABLE_LIST, E_USER_ERROR);
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exit;
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}
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else
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{
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$tables = array();
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foreach ($result as $item) $tables[] = $item['name'];
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return $tables;
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}
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}
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/**
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* Returns an array of the fields in given table name.
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*
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* @param string $tableName Name of database table to inspect
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* @return array Fields in table. Keys are name and type
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*/
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function fields ($tableName)
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{
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$sql = "SELECT c.relname, a.attname, t.typname FROM pg_class c, pg_attribute a, pg_type t WHERE c.relname = '{$tableName}' AND a.attnum > 0 AND a.attrelid = c.oid AND a.atttypid = t.oid";
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$fields = false;
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foreach ($this->all($sql) as $field) {
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$fields[] = array(
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'name' => $field['attname'],
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'type' => $field['typname']);
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}
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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 $data String to be prepared for use in an SQL statement
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* @return string Quoted and escaped
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*/
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function prepareValue ($data)
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{
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return "'".pg_escape_string($data)."'";
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}
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/**
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* Returns a formatted error message from previous database operation.
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*
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* @return string Error message
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*/
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function lastError ()
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{
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$last_error = pg_last_error($this->_conn);
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return $last_error? $last_error: null;
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}
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/**
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* Returns number of affected rows in previous database operation. If no previous operation exists, this returns false.
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*
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* @return int Number of affected rows
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*/
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function lastAffected ()
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{
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return $this->_result? pg_affected_rows($this->_result): false;
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}
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/**
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* Returns number of rows in previous resultset. If no previous resultset exists,
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* this returns false.
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*
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* @return int Number of rows in resultset
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*/
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function lastNumRows ()
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{
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return $this->_result? pg_num_rows($this->_result): false;
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}
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/**
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* Returns the ID generated from the previous INSERT operation.
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*
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* @param string $table Name of the database table
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* @param string $field Name of the ID database field. Defaults to "id"
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* @return int
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*/
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function lastInsertId ($table, $field='id')
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{
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$sql = "SELECT CURRVAL('{$table}_{$field}_seq') AS max";
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$res = $this->rawQuery($sql);
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$data = $this->fetchRow($res);
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return $data['max'];
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}
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/**
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* Returns a limit statement in the correct format for the particular database.
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*
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* @param int $limit Limit of results returned
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* @param int $offset Offset from which to start results
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* @return string SQL limit/offset statement
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*/
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function selectLimit ($limit, $offset=null)
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{
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return " LIMIT {$limit}".($offset? " OFFSET {$offset}": null);
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}
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}
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?>
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