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<?php
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// $Id: class.database.php 1149 2009-09-22 14:50:47Z aldus $
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/*
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Website Baker Project <http://www.websitebaker.org/>
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Copyright (C) 2004-2008, Ryan Djurovich
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Website Baker is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Website Baker is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Website Baker; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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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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/**
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* Stop this file from being accessed directly
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*/
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if ( !defined('WB_URL') ) die (header('location: ../index.php') );
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/**
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* Modifications on this file made by
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* - Dietrich Roland Pehlke (aldus)
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*
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* @version 2.2.2
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* @date 2009-01-09
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* @state beta
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* @require php 5.2.x
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* @package Website Baker - framework: class.database
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*
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* 0.2.2 add "type" to mysql-fetchRow method
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*
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* 0.2.1 add new class functions "copy_content" and "fetch_query".
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*/
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define('DATABASE_CLASS_LOADED', true);
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class database {
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public $mySQL_handle = 0;
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public $db_handle = 0;
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public $connected = 0;
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public $status = 0;
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public $log_querys = false;
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public $log_filename = "wb_querys.log";
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public $log_path = "";
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public $last_query = "";
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public $last_jobnumber = 0;
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public $error_tmpl = "
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<span style='font-family:Verdana, sans-serif;font-size:11px;display:block; width:400px;'>
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An error has occured:<br />
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Job: <b><font color='#990000'>{job}</font></b><br />
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Message: <i><font color='#990000'>{message}</font></i><br />
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</span>";
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public $error = 0;
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public function __construct ($url="") {
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$this->database($url);
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$this->mySQL_handle = new c_mysql();
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}
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/**
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* Set DB_URL
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*/
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public function database($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($this->get_error());
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}
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}
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/**
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* Connect to the database
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*/
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public function connect() {
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$this->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 $this->connected;
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}
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/**
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* Disconnect from the database
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*/
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public function disconnect() {
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if($this->connected==true) {
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mysql_close( $this->db_handle );
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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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/**
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* Run a query
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*/
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public function query( $statement="", $aJobNumber = 0 ) {
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$this->last_query = $statement;
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$this->last_jobnumber = $aJobNumber;
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if (true == $this->log_querys) $this->__write_log();
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$this->mySQL_handle->query($statement);
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$this->set_error($this->mySQL_handle->error());
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if($this->mySQL_handle->error()) {
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if (true == $this->log_querys) {
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$this->last_query = "Error: ".$this->mySQL_handle->error();
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$this->__write_log();
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}
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$this->__display_error();
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return null;
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} else {
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return clone $this->mySQL_handle;
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}
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}
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/**
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*
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*
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*/
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public function fetch_query ($aQuery="", $aNumber=0) {
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$result = $this->query($aQuery, $aNumber);
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if (!$result) return false;
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if ($result->numRows() > 0) {
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return $result->fetchRow();
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} else {
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return false;
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}
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}
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/**
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* Gets the first column of the first row
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*/
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public function get_one($statement) {
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$fetch_row = mysql_fetch_row(mysql_query($statement));
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$result = $fetch_row[0];
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$this->set_error(mysql_error());
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if(mysql_error()) {
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return null;
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} else {
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return $result;
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}
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}
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/**
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* Set the DB error
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*/
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public function set_error($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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/**
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* Return true if there was an error
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*/
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public function is_error() {
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return ( 0 <> $this->error ) ? true : false;
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}
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/**
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* Return the error
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*/
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public function get_error() {
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return $this->error;
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}
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/**
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* Copy a content of a given table to another entry of the table
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*
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* @param string The tablename
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* @param string The source condition, e.g. "page_id=23"
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* @param string The target condition, e.g. "page_id=33"
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* @param mixed The exeptions, the field, that should not copied; e.g. "page_id". Could be also an array.
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* @param integer An optional Jobnumber for debugging.
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* @param bool Debugmode to display the final querys on screen instead of execute them
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*
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* @return bool true if all's ok.
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*
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*/
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public function copy_content ($aTableName="", $aSourceCondition="", $aTargetCondition="", $aException="", $aJobNum=3100, $debug=false) {
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if (!is_array($aException)) $aException = array ($aException);
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$all_fields = mysql_list_fields( DB_NAME, $aTableName);
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$n = mysql_num_fields($all_fields);
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if ($n == 0) die ("Error: no fields found in ".$aTableName);
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$i=0;
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$all_names = array();
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while($i < $n) {
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$field_name = mysql_field_name($all_fields, $i++);
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if (!in_array ($field_name, $aException) ) $all_names[] = $field_name;
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}
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$result = $this->query ("SELECT ".implode(", ",$all_names)." from ". $aTableName ." where ".$aSourceCondition, 3000 );
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$data = $result->fetchRow();
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if (false === $debug) {
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foreach ($all_names as $c => $item) $this->query ("UPDATE ". $aTableName ." set ". $item ."='" .$data[ $item ]."' where ".$aTargetCondition, ($aJobNum + (integer)$c));
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} else {
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foreach ($all_names as $c => $item) echo "UPDATE ". $aTableName ." set ". $item ."='" .$data[ $item ]."' where ".$aTargetCondition."<br />";
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die();
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}
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return true;
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}
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/**
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* Simple way to log the querys for debugging
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*/
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public function __write_log () {
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$path = ($this->log_path == "") ? WB_PATH."/framework/" : $this->log_path;
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$fp = fopen($path.$this->log_filename, 'a');
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if ($fp) {
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$str = "\n## ".DATE("Y-m-d H:i:s", TIME())." --------------\n".str_replace( array("\n", "\t", "\r"), array("", "", ""), $this->last_query);
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$str .= "\n";
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fwrite($fp, $str, strlen($str) );
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fclose($fp);
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}
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}
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public function __display_error() {
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ob_end_flush();
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if ($this->last_jobnumber == 0) $this->last_jobnumber = "0 (no job-number specified)";
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$msg = str_replace (
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array ('{job}', '{message}'),
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array ($this->last_jobnumber, $this->error),
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$this->error_tmpl
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);
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die ($msg);
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}
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}
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class c_mysql {
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public $result = 0;
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public $error = 0;
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/**
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* Run a query
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*/
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public function query($statement) {
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$this->result = mysql_query($statement);
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$this->error = mysql_error();
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return $this->result;
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}
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/**
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* Fetch num rows
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*/
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public function numRows() {
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return mysql_num_rows($this->result);
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}
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/**
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* Fetch row
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*
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* @param string typ One of the following
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* MYSQL_ASSOC, MYSQL_NUM, MYSQL_BOTH
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*/
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public function fetchRow($typ = MYSQL_BOTH) {
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return mysql_fetch_array($this->result);
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}
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/**
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* Get error
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*/
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public function error() {
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if ( ( 0 <> $this->error ) AND (is_string($this->error) ) ) {
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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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