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4
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ryan
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<?php
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1362
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Luisehahne
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/**
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*
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* @category framework
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* @package database
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* @author WebsiteBaker Project
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* @copyright 2004-2009, Ryan Djurovich
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* @copyright 2009-2011, Website Baker Org. e.V.
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* @link http://www.websitebaker2.org/
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* @license http://www.gnu.org/licenses/gpl.html
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* @platform WebsiteBaker 2.8.x
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* @requirements PHP 5.2.2 and higher
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* @version $Id$
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* @filesource $HeadURL: $
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* @lastmodified $Date: $
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*
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*/
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4
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ryan
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/*
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Database class
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This class will be used to interface between the database
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and the Website Baker code
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*/
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// Stop this file from being accessed directly
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19
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stefan
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if(!defined('WB_URL')) {
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header('Location: ../index.php');
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286
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stefan
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exit(0);
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19
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stefan
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}
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4
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ryan
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if(!defined('DB_URL')) {
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//define('DB_URL', DB_TYPE.'://'.DB_USERNAME.':'.DB_PASSWORD.'@'.DB_HOST.'/'.DB_NAME);
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}
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define('DATABASE_CLASS_LOADED', true);
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class database {
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1362
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Luisehahne
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private $db_handle = null; // readonly from outside
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private $connected = false;
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private $error = '';
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private $error_type = '';
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private $message = array();
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4
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ryan
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// Set DB_URL
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function database($url = '') {
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// Connect to database
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$this->connect();
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// Check for database connection error
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if($this->is_error()) {
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die($this->get_error());
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}
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}
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// Connect to the database
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function connect() {
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$status = $this->db_handle = mysql_connect(DB_HOST, DB_USERNAME, DB_PASSWORD);
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if(mysql_error()) {
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$this->connected = false;
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$this->error = mysql_error();
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} else {
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if(!mysql_select_db(DB_NAME)) {
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$this->connected = false;
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$this->error = mysql_error();
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} else {
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$this->connected = true;
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}
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}
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return $this->connected;
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}
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// Disconnect from the database
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function disconnect() {
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95
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stefan
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if($this->connected==true) {
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4
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ryan
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mysql_close();
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return true;
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} else {
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return false;
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}
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}
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// Run a query
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function query($statement) {
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$mysql = new mysql();
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$mysql->query($statement);
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342
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stefan
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$this->set_error($mysql->error());
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4
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ryan
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if($mysql->error()) {
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return null;
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} else {
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return $mysql;
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}
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}
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1362
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Luisehahne
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4
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ryan
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// Gets the first column of the first row
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1362
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Luisehahne
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function get_one( $statement )
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{
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$fetch_row = mysql_fetch_array(mysql_query($statement) );
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4
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ryan
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$result = $fetch_row[0];
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342
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stefan
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$this->set_error(mysql_error());
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4
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ryan
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if(mysql_error()) {
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return null;
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} else {
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return $result;
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}
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}
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// Set the DB error
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function set_error($message = null) {
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global $TABLE_DOES_NOT_EXIST, $TABLE_UNKNOWN;
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$this->error = $message;
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if(strpos($message, 'no such table')) {
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$this->error_type = $TABLE_DOES_NOT_EXIST;
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} else {
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$this->error_type = $TABLE_UNKNOWN;
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}
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}
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// Return true if there was an error
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function is_error() {
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return (!empty($this->error)) ? true : false;
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}
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// Return the error
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function get_error() {
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return $this->error;
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}
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1362
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Luisehahne
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/*
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* default Getter
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*/
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public function __get($var_name)
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{
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if($var_name == 'db_handle')
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{
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return $this->db_handle;
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}
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return null;
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}
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/*
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* @param string $table_name: full name of the table (incl. TABLE_PREFIX)
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* @param string $field_name: name of the field to seek for
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* @return bool: true if field exists
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*/
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public function field_exists($table_name, $field_name)
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{
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$sql = 'DESCRIBE `'.$table_name.'` `'.$field_name.'` ';
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$query = $this->query($sql);
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return ($query->numRows() != 0);
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}
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/*
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* @param string $table_name: full name of the table (incl. TABLE_PREFIX)
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* @param string $index_name: name of the index to seek for
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* @return bool: true if field exists
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*/
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public function index_exists($table_name, $index_name, $number_fields = 0)
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{
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$number_fields = intval($number_fields);
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$keys = 0;
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$sql = 'SHOW INDEX FROM `'.$table_name.'`';
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if( ($res_keys = $this->query($sql)) )
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{
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while(($rec_key = $res_keys->fetchRow()))
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{
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if( $rec_key['Key_name'] == $index_name )
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{
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$keys++;
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}
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}
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}
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if( $number_fields == 0 )
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{
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return ($keys != $number_fields);
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}else
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{
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return ($keys == $number_fields);
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}
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}
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/*
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* @param string $table_name: full name of the table (incl. TABLE_PREFIX)
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* @param string $field_name: name of the field to add
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* @param string $description: describes the new field like ( INT NOT NULL DEFAULT '0')
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* @return bool: true if successful, otherwise false and error will be set
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*/
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public function field_add($table_name, $field_name, $description)
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{
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if( !$this->field_exists($field_name, $table_name) )
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{ // add new field into a table
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$sql = 'ALTER TABLE `'.$table_name.'` ADD '.$field_name.' '.$description.' ';
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$query = $this->query($sql);
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$this->set_error(mysql_error());
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if( !$this->is_error() )
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{
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return ( $this->field_exists($field_name, $table_name) ) ? true : false;
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}
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}else
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{
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$this->set_error('field \''.$field_name.'\' already exists');
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}
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return false;
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}
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/*
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* @param string $table_name: full name of the table (incl. TABLE_PREFIX)
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* @param string $field_name: name of the field to add
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* @param string $description: describes the new field like ( INT NOT NULL DEFAULT '0')
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* @return bool: true if successful, otherwise false and error will be set
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*/
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public function field_modify($table_name, $field_name, $description)
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{
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$retval = false;
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if( $this->field_exists($field_name, $table_name) )
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{ // modify a existing field in a table
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$sql = 'ALTER TABLE `'.$table_name.'` DROP `'.$field_name.'`';
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}
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}
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/*
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* @param string $table_name: full name of the table (incl. TABLE_PREFIX)
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* @param string $field_name: name of the field to remove
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* @return bool: true if successful, otherwise false and error will be set
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*/
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public function field_remove($table_name, $field_name)
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{
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$retval = false;
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if( $this->field_exists($field_name, $table_name) )
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{ // modify a existing field in a table
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$sql = 'ALTER TABLE `'.$table_name.'` DROP `'.$field_name.'`';
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$retval = ( $this->query($sql) ? true : false );
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}
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return $retval;
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}
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/*
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* @param string $table_name: full name of the table (incl. TABLE_PREFIX)
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* @param string $index_name: name of the new index
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* @param string $field_list: comma seperated list of fields for this index
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* @param string $index_type: kind of index (UNIQUE, PRIMARY, '')
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* @return bool: true if successful, otherwise false and error will be set
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*/
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public function index_add($table_name, $index_name, $field_list, $index_type = '')
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{
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$retval = false;
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$field_list = str_replace(' ', '', $field_list);
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$field_list = explode(',', $field_list);
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$number_fields = sizeof($field_list);
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$field_list = '`'.implode('`,`', $field_list).'`';
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if( $this->index_exists($table_name, $index_name, $number_fields) ||
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$this->index_exists($table_name, $index_name))
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{
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$sql = 'ALTER TABLE `'.$table_name.'` ';
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$sql .= 'DROP INDEX `'.$index_name.'`';
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if( $this->query($sql))
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{
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$sql = 'ALTER TABLE `'.$table_name.'` ';
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$sql .= 'ADD '.$index_type.' `'.$index_name.'` ( '.$field_list.' ); ';
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if( $this->query($sql)) { $retval = true; }
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}
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}
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return $retval;
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}
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/*
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* @param string $table_name: full name of the table (incl. TABLE_PREFIX)
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* @param string $field_name: name of the field to remove
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* @return bool: true if successful, otherwise false and error will be set
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*/
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public function index_remove($table_name, $index_name)
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{
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$retval = false;
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if( $this->index_exists($table_name, $index_name) )
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{ // modify a existing field in a table
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$sql = 'ALTER TABLE `'.$table_name.'` DROP INDEX `'.$index_name.'`';
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$retval = ( $this->query($sql) ? true : false );
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}
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return $retval;
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}
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} /// end of class database
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| 289 |
4
|
ryan
|
class mysql {
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// Run a query
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function query($statement) {
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$this->result = mysql_query($statement);
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$this->error = mysql_error();
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return $this->result;
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}
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// Fetch num rows
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function numRows() {
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return mysql_num_rows($this->result);
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}
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| 302 |
1011
|
Ruebenwurz
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| 303 |
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// Fetch row $typ = MYSQL_ASSOC, MYSQL_NUM, MYSQL_BOTH
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function fetchRow($typ = MYSQL_BOTH) {
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return mysql_fetch_array($this->result, $typ);
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4
|
ryan
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}
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| 307 |
1011
|
Ruebenwurz
|
|
| 308 |
4
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ryan
|
// Get error
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| 309 |
|
|
function error() {
|
| 310 |
|
|
if(isset($this->error)) {
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| 311 |
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return $this->error;
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} else {
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return null;
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}
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}
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}
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?>
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