831 lines
No EOL
21 KiB
PHP
831 lines
No EOL
21 KiB
PHP
<?php
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/**
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* This file is a part of MyWebSQL package
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* A simple and easy to debug mysqli wrapper class
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*
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* @file: lib/db/mysqli.php
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* @author Samnan ur Rehman
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* @copyright (c) 2008-2014 Samnan ur Rehman
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* @web http://mywebsql.net
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* @license http://mywebsql.net/license
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*/
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if (defined("CLASS_DB_MYSQLI_INCLUDED"))
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return true;
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define("CLASS_DB_MYSQLI_INCLUDED", "1");
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define("NOT_NULL_FLAG", 1); /* Field can't be NULL */
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define("PRI_KEY_FLAG", 2); /* Field is part of a primary key */
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define("UNIQUE_KEY_FLAG", 4); /* Field is part of a unique key */
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define("MULTIPLE_KEY_FLAG", 8); /* Field is part of a key */
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define("BLOB_FLAG", 16); /* Field is a blob */
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define("UNSIGNED_FLAG", 32); /* Field is unsigned */
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define("ZEROFILL_FLAG", 64); /* Field is zerofill */
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define("BINARY_FLAG", 128); /* Field is binary */
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define("ENUM_FLAG", 256); /* field is an enum */
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define("AUTO_INCREMENT_FLAG", 512); /* field is a autoincrement field */
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define("TIMESTAMP_FLAG", 1024); /* Field is a timestamp */
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define("SET_FLAG", 2048); /* Field is a set */
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class DB_Mysqli {
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var $ip, $user, $password, $db;
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var $conn;
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var $result; // array
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var $errMsg;
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var $escapeData;
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var $lastQuery;
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var $queryTime;
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// these help identify field definitions more clearly
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var $field_types = array(
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7 => 'datetime',
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10 => 'date',
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11 => 'time',
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12 => 'datetime',
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13 => 'year',
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16 => 'bit',
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246 => 'numeric'
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);
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function DB_Mysqli() {
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$this->conn = null;
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$this->errMsg = null;
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$this->escapeData = true;
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$this->result = array();
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}
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function name() {
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return 'mysql';
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}
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function hasServer() {
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return true;
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}
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function hasObject($type) {
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switch($type) {
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case 'table':
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case 'view':
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case 'procedure':
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case 'function':
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case 'trigger':
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return true;
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break;
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case 'event':
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if ( ((float)Session::get('db', 'version_full')) >= 5.1 )
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return true;
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break;
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}
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return false;
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}
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function getObjectTypes() {
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$types = array(
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'tables', 'views', 'procedures', 'functions', 'triggers'
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);
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if ($this->hasObject('event'))
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$types[] = 'events';
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return $types;
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}
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function getObjectList( $details = false ) {
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$data = array(
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'tables' => $this->getTables( $details ),
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'views' => $this->getViews(),
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'procedures' => $this->getProcedures(),
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'functions' => $this->getFunctions(),
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'triggers' => $this->getTriggers(),
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);
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if ($this->hasObject('event'))
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$data['events'] = $this->getEvents();
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return $data;
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}
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function getBackQuotes() {
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return '`';
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}
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function getQuotes() {
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return '"';
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}
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function getStandardDbList() {
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return array( 'information_schema', 'performance_schema', 'mysql', 'test' );
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}
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function setAuthOptions($options) {
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}
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function connect($ip, $user, $password, $db="") {
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if (!function_exists('mysqli_connect')) {
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return $this->error(str_replace('{{NAME}}', 'MySQLi', __('{{NAME}} client library is not installed')));
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}
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$this->conn = @mysqli_connect($ip, $user, $password);
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if (!$this->conn)
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return $this->error(__('Database connection failed to the server'));
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if ($db && !@mysqli_select_db($this->conn, $db))
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return $this->error(mysqli_error($this->conn));
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$this->ip = $ip;
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$this->user = $user;
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$this->password = $password;
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$this->db = $db;
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$this->selectVersion();
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$this->query("SET CHARACTER SET 'utf8'");
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$this->query("SET collation_connection = 'utf8_general_ci'");
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return true;
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}
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function disconnect() {
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@mysqli_close($this->conn);
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$this->conn = false;
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return true;
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}
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function getCurrentUser() {
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if ($this->query('select user()')) {
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$row = $this->fetchRow();
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return $row[0];
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}
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return '';
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}
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function selectDb($db) {
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$this->db = $db;
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mysqli_select_db($this->conn, $this->db);
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}
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function createDatabase( $name ) {
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$sql = "create database `".$this->escape($name)."`";
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return $this->query($sql);
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}
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function query($sql, $stack=0) { // call with query($sql, 1) to store multiple results
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if (!$this->conn) {
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log_message("DB: Connection has been closed");
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return false;
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}
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if (v($this->result[$stack]))
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@mysqli_free_result($this->result[$stack]);
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$this->result[$stack] = "";
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$this->lastQuery = $sql;
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$this->queryTime = $this->getMicroTime();
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$this->result[$stack] = @mysqli_query($this->conn, $sql);
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$this->queryTime = $this->getMicroTime() - $this->queryTime;
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if ($this->result[$stack] === FALSE) {
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$this->errMsg = mysqli_error($this->conn);
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log_message("DB: $sql ::: ".@mysqli_error($this->conn));
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return false;
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}
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return true;
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}
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function getWarnings() {
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$ret = array();
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$res = mysqli_query($this->conn, "SHOW WARNINGS");
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if ($res !== FALSE) {
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while($row = mysqli_fetch_array($res))
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$ret[$row['Code']] = $row['Message'];
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}
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return $ret;
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}
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function getQueryTime($time=false) { // returns formatted given value or internal query time
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return sprintf("%.2f", ($time ? $time : $this->queryTime) * 1000) . " ms";
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}
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function hasAffectedRows() {
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return ($this->getAffectedRows() > 0);
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}
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function insert($table, $values) {
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if (!is_array($values))
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return false;
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$sql = "insert into $table (";
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foreach($values as $field=>$value)
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$sql .= " $field,";
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$sql = substr($sql, 0, strlen($sql) - 1);
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$sql .= ") values (";
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foreach($values as $field=>$value) {
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if ($this->escapeData)
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$sql .= "'" . $this->escape($value) . "',";
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else
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$sql .= "'$value',";
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}
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$sql = substr($sql, 0, strlen($sql) - 1);
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$sql .= ")";
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$this->query($sql);
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}
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function update($table, $values, $condition="") {
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if (!is_array($values))
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return false;
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$sql = "update $table set ";
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foreach($values as $field=>$value) {
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if ($this->escapeData)
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$sql .= "$field = '" . $this->escape($field) . "',";
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else
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$sql .= "$field = '$value',";
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}
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$sql = substr($sql, 0, strlen($sql) - 1);
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if ($condition != "")
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$sql .= "$condition";
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$this->query($sql);
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}
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function getInsertID() {
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return mysqli_insert_id($this->conn);
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}
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function getResult($stack=0) {
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return $this->result[$stack];
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}
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function hasResult($stack=0) {
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return (is_object($this->result[$stack])); // !== FALSE && $this->result[$stack] !== TRUE);
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}
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function fetchRow($stack=0, $type="") {
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if($type == "")
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$type = MYSQLI_BOTH;
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else if ($type == "num")
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$type = MYSQLI_NUM;
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else if ($type == "assoc")
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$type = MYSQLI_ASSOC;
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if (!$this->result[$stack]) {
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log_message("DB: called fetchRow[$stack] but result is false");
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return;
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}
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return @mysqli_fetch_array($this->result[$stack], $type);
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}
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function fetchSpecificRow($num, $type="", $stack=0) {
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if($type == "")
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$type = MYSQL_BOTH;
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else if ($type == "num")
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$type = MYSQLI_NUM;
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else if ($type == "assoc")
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$type = MYSQLI_ASSOC;
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if (!$this->result[$stack]) {
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log_message("DB: called fetchSpecificRow[$stack] but result is false");
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return;
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}
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mysqli_data_seek($this->result[$stack], $num);
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return @mysqli_fetch_array($this->result[$stack], $type);
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}
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function numRows($stack=0) {
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return mysqli_num_rows($this->result[$stack]);
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}
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function error($str) {
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log_message("DB: " . $str);
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$this->errMsg = $str;
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return false;
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}
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function getError() {
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return $this->errMsg;
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}
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function escape($str) {
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return mysqli_escape_string($this->conn, $str);
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}
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function quote($str) {
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if(strpos($str, '.') === false)
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return '`' . $str . '`';
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return '`' . str_replace('.', '`.`', $str) . '`';
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}
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function setEscape($escape=true) {
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$this->escapeData = $escape;
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}
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function getAffectedRows() {
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return mysqli_affected_rows($this->conn);
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}
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/**************************************/
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function getDatabases() {
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$res = mysqli_query($this->conn, "show databases");
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$ret = array();
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while($row = mysqli_fetch_array($res))
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$ret[] = $row[0];
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return $ret;
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}
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function getTables( $details = false ) {
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if (!$this->db)
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return array();
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$res = mysqli_query($this->conn, "show table status from `$this->db` where engine is NOT null");
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$ret = array();
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while($row = mysqli_fetch_array($res, MYSQLI_ASSOC)) {
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$ret[] = $details ? array(
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$row['Name'], // table name
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$row['Rows'], // number of records,
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$row['Data_length'] + $row['Index_length'], // size of the table
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(empty($row['Update_time']) ? $row['Create_time'] : $row['Update_time'] ), // last update timestamp
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) : $row['Name'];
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}
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return $ret;
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}
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function getViews() {
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if (!$this->db)
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return array();
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$res = mysqli_query($this->conn, "show table status from `$this->db` where engine is null");
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if (!$res)
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return array();
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$ret = array();
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while($row = mysqli_fetch_array($res))
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$ret[] = $row[0];
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return $ret;
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}
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function getProcedures() {
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if (!$this->db)
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return array();
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$res = mysqli_query($this->conn, "show procedure status where db = '$this->db'");
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if (!$res)
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return array();
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$ret = array();
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while($row = mysqli_fetch_array($res))
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$ret[] = $row[1];
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return $ret;
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}
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function getFunctions() {
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if (!$this->db)
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return array();
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$res = mysqli_query($this->conn, "show function status where db = '$this->db'");
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if (!$res)
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return array();
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$ret = array();
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while($row = mysqli_fetch_array($res))
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$ret[] = $row[1];
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return $ret;
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}
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function getTriggers() {
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if (!$this->db)
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return array();
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$res = mysqli_query($this->conn, "select `TRIGGER_NAME` from `INFORMATION_SCHEMA`.`TRIGGERS` where `TRIGGER_SCHEMA` = '$this->db'");
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if (!$res)
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return array();
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$ret = array();
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while($row = mysqli_fetch_array($res))
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$ret[] = $row[0];
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return $ret;
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}
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function getEvents() {
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if (!$this->db)
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return array();
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$res = mysqli_query($this->conn, "select `EVENT_NAME` from `INFORMATION_SCHEMA`.`EVENTS` where `EVENT_SCHEMA` = '$this->db'");
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if (!$res)
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return array();
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$ret = array();
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while($row = mysqli_fetch_array($res))
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$ret[] = $row[0];
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return $ret;
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}
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/**************************************/
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function getFieldInfo($stack=0) {
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$fields = array();
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$i = 0;
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while ($i < mysqli_num_fields($this->result[$stack])) {
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$meta = mysqli_fetch_field_direct($this->result[$stack], $i);
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if ($meta) {
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$f = new StdClass;
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$f->name = $meta->name;
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$f->table = $meta->table;
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$f->not_null = ($meta->flags & NOT_NULL_FLAG) ? 1 : 0;
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$f->blob = ($meta->flags & BLOB_FLAG) ? 1 : 0;
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$f->pkey = ($meta->flags & PRI_KEY_FLAG) ? 1 : 0;
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$f->ukey = ($meta->flags & UNIQUE_KEY_FLAG) ? 1 : 0;
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$f->mkey = ($meta->flags & MULTIPLE_KEY_FLAG) ? 1 : 0;
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$f->zerofill = ($meta->flags & ZEROFILL_FLAG) ? 1 : 0;
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$f->unsigned = ($meta->flags & UNSIGNED_FLAG) ? 1 : 0;
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$f->autoinc = ($meta->flags & AUTO_INCREMENT_FLAG) ? 1 : 0;
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$f->numeric = $meta->type < 10 ? 1 : 0;
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if (isset($this->field_types[$meta->type]))
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$f->type = $this->field_types[$meta->type];
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else if ($meta->flags & ENUM_FLAG)
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$f->type = 'enum';
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else if ($meta->flags & SET_FLAG)
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$f->type = 'set';
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else if ($meta->flags & TIMESTAMP_FLAG)
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$f->type = "timestamp";
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else if ($meta->flags & BINARY_FLAG)
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$f->type = 'binary';
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else if ($meta->type < 10)
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$f->type = 'numeric';
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else
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$f->type = 'text';
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if ($f->type == 'enum' || $f->type == 'set')
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$f->list = $this->getFieldValues($f->table, $f->name);
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else if ($f->type == 'bit')
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$f->list = array('0', '1');
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$fields[] = $f;
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}
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$i++;
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}
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return $fields;
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}
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|
|
function getMicroTime() {
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list($usec, $sec) = explode(" ",microtime());
|
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return ((float)$usec + (float)$sec);
|
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}
|
|
|
|
function selectVersion() {
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$res = mysqli_query($this->conn, "SHOW VARIABLES LIKE 'version%'");
|
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while($row = mysqli_fetch_array($res)) {
|
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if ($row[0] == 'version') {
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Session::set('db', 'version', intval($row[1]));
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Session::set('db', 'version_full', $row[1]);
|
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} else if ($row[0] == 'version_comment') {
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Session::set('db', 'version_comment', $row[1]);
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}
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}
|
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}
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|
|
|
function getCreateCommand($type, $name) {
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$cmd = '';
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$type = $this->escape($type);
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|
$name = $this->escape($name);
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|
|
|
if ($type == "trigger")
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|
$sql = "show triggers where `trigger` = '$name'";
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|
else
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$sql = "show create $type `$name`";
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|
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if (!$this->query($sql) || $this->numRows() == 0)
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return '';
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|
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$row = $this->fetchRow();
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|
|
|
if ($type == "trigger")
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$cmd = "create trigger `$row[0]`\r\n$row[4] $row[1] on `$row[2]`\r\nfor each row\r\n$row[3]";
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else {
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switch($type) {
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case 'table':
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case 'view':
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$cmd = $row[1];
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break;
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case 'procedure':
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case 'function':
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$cmd = $row[2];
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break;
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case 'event':
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$cmd = $row[3];
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break;
|
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}
|
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}
|
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return $cmd;
|
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}
|
|
|
|
function getDropCommand( $table ) {
|
|
return "drop table if exists " . $this->quote( $table );
|
|
}
|
|
|
|
function getTruncateCommand( $table ) {
|
|
return 'truncate table ' . $this->quote( $table );
|
|
}
|
|
|
|
function getFieldValues($table, $name) {
|
|
$sql = 'show full fields from `'.$table.'` where `Field` = \''.$this->escape($name).'\'';
|
|
$res = mysqli_query($this->conn, $sql);
|
|
if (mysqli_num_rows($res) == 0)
|
|
return ( (object) array('list' => array()) );
|
|
$row = mysqli_fetch_array($res);
|
|
$type = $row['Type'];
|
|
preg_match('/enum\((.*)\)$/', $type, $matches);
|
|
if (!isset($matches[1]))
|
|
preg_match('/set\((.*)\)$/', $type, $matches);
|
|
if (isset($matches[1])) {
|
|
if (phpCheck(5.3)) {
|
|
$regex = "/\('(.*)'\)/";
|
|
preg_match_all($regex, $row['Type'], $list);
|
|
return array_map('replace_single_quotes', explode("','", $list[1][0]));
|
|
} else {
|
|
$list = explode(',', $matches[1]);
|
|
foreach($list as $k => $v)
|
|
$list[$k] = str_replace("\\'", "'", trim($v, " '"));
|
|
return $list;
|
|
}
|
|
}
|
|
return ( (object) array('list' => array()) );
|
|
}
|
|
|
|
function getEngines() {
|
|
$sql = 'show engines';
|
|
$res = mysqli_query($this->conn, $sql);
|
|
if (mysqli_num_rows($res) == 0)
|
|
return ( array() );
|
|
|
|
$arr = array();
|
|
while($row = mysqli_fetch_array($res))
|
|
if ($row['Support'] != 'NO')
|
|
$arr[] = $row['Engine'];
|
|
return $arr;
|
|
}
|
|
|
|
function getCharsets() {
|
|
$sql = 'show character set';
|
|
$res = mysqli_query($this->conn, $sql);
|
|
if (mysqli_num_rows($res) == 0)
|
|
return ( array() );
|
|
|
|
$arr = array();
|
|
while($row = mysqli_fetch_array($res))
|
|
$arr[] = $row['Charset'];
|
|
|
|
asort($arr);
|
|
return $arr;
|
|
}
|
|
|
|
function getCollations() {
|
|
$sql = 'show collation';
|
|
$res = mysqli_query($this->conn, $sql);
|
|
if (mysqli_num_rows($res) == 0)
|
|
return ( array() );
|
|
|
|
$arr = array();
|
|
while($row = mysqli_fetch_array($res))
|
|
$arr[] = $row['Collation'];
|
|
|
|
asort($arr);
|
|
return $arr;
|
|
}
|
|
|
|
function getTableFields($table) {
|
|
$sql = "show full fields from ".$this->quote($table);
|
|
if (!$this->query($sql, "_temp"))
|
|
return array();
|
|
|
|
$fields = array();
|
|
while($row = $this->fetchRow("_temp")) {
|
|
$f = new StdClass;
|
|
$f->type = $row['Type'];
|
|
$f->name = $row['Field'];
|
|
$fields[] = $f;
|
|
}
|
|
|
|
return $fields;
|
|
}
|
|
|
|
function getTableProperties($table) {
|
|
$sql = "show table status where `Name` like '".$this->escape($table)."'";
|
|
if (!$this->query($sql, "_tmp_query"))
|
|
return FALSE;
|
|
return $this->fetchRow("_tmp_query");
|
|
}
|
|
|
|
function queryTableStatus() {
|
|
$sql = "show table status where Engine is not null";
|
|
return $this->query($sql);
|
|
}
|
|
|
|
function getTableDescription( $table ) {
|
|
$sql = "describe " . $this->quote( $table );
|
|
return $this->query($sql);
|
|
}
|
|
|
|
function flush($option = '', $skiplog=false) {
|
|
$options = array('HOSTS', 'PRIVILEGES', 'TABLES', 'STATUS', 'DES_KEY_FILE', 'QUERY CACHE', 'USER_RESOURCES', 'TABLES WITH READ LOCK');
|
|
if ($option == '') {
|
|
foreach($options as $option) {
|
|
$sql = "flush " . ( $skiplog ? "NO_WRITE_TO_BINLOG " : "") . $this->escape($option);
|
|
$this->query($sql, '_temp_flush');
|
|
}
|
|
$this->query('UNLOCK TABLES', '_temp_flush');
|
|
} else {
|
|
$sql = "flush " . ( $skiplog ? "NO_WRITE_TO_BINLOG " : "") . $this->escape($option);
|
|
$this->query($sql, '_temp_flush');
|
|
if ($option == 'TABLES WITH READ LOCK')
|
|
$this->query('UNLOCK TABLES', '_temp_flush');
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function getLastQuery() {
|
|
return $this->lastQuery;
|
|
}
|
|
|
|
|
|
function getInsertStatement($tbl) {
|
|
$sql = "show full fields from `$tbl`";
|
|
if (!$this->query($sql, '_insert'))
|
|
return false;
|
|
|
|
$str = "INSERT INTO `".$tbl."` (";
|
|
$num = $this->numRows('_insert');
|
|
$row = $this->fetchRow('_insert');
|
|
$str .= "`" . $row[0] . "`";
|
|
|
|
if ($row["Extra"] == "auto_increment")
|
|
$str2 = " VALUES (NULL";
|
|
else
|
|
$str2 = " VALUES (\"\"";
|
|
|
|
for($i=1; $i<$num; $i++) {
|
|
$row = $this->fetchRow('_insert');
|
|
$str .= ",`" . $row[0] . "`";
|
|
if ($row["Extra"] == "auto_increment")
|
|
$str2 .= ",NULL";
|
|
//else if (strpos($row["Type"], "int") !== false)
|
|
// $str2 .= ", "; // for numeric fields
|
|
else
|
|
$str2 .= ",\"\"";
|
|
}
|
|
|
|
$str .= ")";
|
|
$str2 .= ")";
|
|
|
|
return $str.$str2;
|
|
}
|
|
|
|
function getUpdateStatement($tbl) {
|
|
$sql = "show full fields from `".$this->escape($tbl)."`";
|
|
if (!$this->query($sql, '_update'))
|
|
return false;
|
|
|
|
$pKey = ''; // if a primary key is available, this helps avoid multikey attributes in where clause
|
|
$str2 = "";
|
|
$str = "UPDATE `".$tbl."` SET ";
|
|
$num = $this->numRows('_update');
|
|
$row = $this->fetchRow('_update');
|
|
|
|
$str .= "`" . $row[0] . "`=\"\"";
|
|
if ($row["Key"] != "")
|
|
$str2 .= "`$row[0]`=\"\"";
|
|
if ($row["Key"] == 'PRI')
|
|
$pKey = $row[0];
|
|
|
|
for($i=1; $i<$num; $i++) {
|
|
$row = $this->fetchRow('_update');
|
|
$str .= ",`" . $row[0] . "`=\"\"";
|
|
if ($row["Key"] != "") {
|
|
if ($row["Key"] == 'PRI')
|
|
$pKey = $row[0];
|
|
if ($str2 != "")
|
|
$str2 .= " AND ";
|
|
$str2 .= "`$row[0]`=\"\"";
|
|
}
|
|
}
|
|
|
|
// if we found a primary key, then use it only for where clause and discard other keys
|
|
if ($pKey != '')
|
|
$str2 = "`$pKey`=\"\"";
|
|
if ($str2 != "")
|
|
$str2 = " WHERE " . $str2;
|
|
|
|
return $str . $str2;
|
|
}
|
|
|
|
function truncateTable($tbl) {
|
|
return $this->query('truncate table '.$this->quote($tbl));
|
|
}
|
|
|
|
function renameObject($name, $type, $new_name) {
|
|
$result = false;
|
|
if($type == 'table') {
|
|
$query = 'rename '.$this->escape($type).' `'.$this->escape($name).'` to `'.$this->escape($new_name).'`';
|
|
$result = $this->query($query);
|
|
}
|
|
else {
|
|
$command = $this->getCreateCommand($type, $name);
|
|
$search = '/(create.*'.$type. ' )('.$name.'|\`'.$name.'\`)/i';
|
|
$replace = '${1} `'.$new_name.'`';
|
|
$query = preg_replace($search, $replace, $command, 1);
|
|
if ($this->query($query)) {
|
|
$query = 'drop '.$this->escape($type).' `'.$this->escape($name).'`';
|
|
$result = $this->query($query);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
function dropObject($name, $type) {
|
|
$result = false;
|
|
$query = 'drop '.$this->escape($type).' `'.$this->escape($name).'`';
|
|
$result = $this->query($query);
|
|
return $result;
|
|
}
|
|
|
|
function copyObject($name, $type, $new_name) {
|
|
$result = false;
|
|
if($type == 'table') {
|
|
$query = 'create '.$this->escape($type).' `' . $this->escape($new_name) . '` like `' . $this->escape($name) . '`';
|
|
$result = $this->query($query);
|
|
if ($result) {
|
|
$query = 'insert into `' . $this->escape($new_name) . '` select * from `' . $this->escape($name) . '`';
|
|
$result = $this->query($query);
|
|
}
|
|
}
|
|
else {
|
|
$command = $this->getCreateCommand($type, $name);
|
|
$search = '/(create.*'.$type. ' )('.$name.'|\`'.$name.'\`)/i';
|
|
$replace = '${1} `'.$new_name.'`';
|
|
$query = preg_replace($search, $replace, $command, 1);
|
|
$result = $this->query($query);
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
function getAutoIncField($table) {
|
|
$sql = "show full fields from `".$this->escape($table)."`";
|
|
if (!$this->query($sql, "_temp"))
|
|
return false;
|
|
|
|
$i = 0;
|
|
while($row = $this->fetchRow("_temp")) {
|
|
if (strpos($row["Extra"], "auto_increment") !== false) {
|
|
return $i;
|
|
}
|
|
$i++;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
function queryVariables() {
|
|
return $this->query("SHOW VARIABLES");
|
|
}
|
|
|
|
function getLimit($count, $offset = 0) {
|
|
return " limit $offset, $count";
|
|
}
|
|
|
|
function addExportHeader( $name, $obj = 'db', $type='insert' ) {
|
|
$str = '';
|
|
switch($type) {
|
|
case 'insert':
|
|
if ( $obj == 'db' ) {
|
|
$str = "/* Database export results for db ".$name." */\n";
|
|
$str .= "\n/* Preserve session variables */\nSET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS;\nSET FOREIGN_KEY_CHECKS=0;\n\n/* Export data */\n";
|
|
} else if ( $obj == 'table' ) {
|
|
$str = "/* Table data export for table ".$name." */\n";
|
|
$str .= "\n/* Preserve session variables */\nSET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS;\nSET FOREIGN_KEY_CHECKS=0;\n\n/* Export data */\n";
|
|
} else if ( $obj == 'query' ) {
|
|
$str = "/* Export results for query data */\n";
|
|
$str .= "/* Query: \n".$name."\n*/\n";
|
|
$str .= "\n/* Preserve session variables */\nSET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS;\nSET FOREIGN_KEY_CHECKS=0;\n\n/* Export data */\n";
|
|
}
|
|
break;
|
|
}
|
|
return $str;
|
|
}
|
|
|
|
function addExportFooter( $type='insert' ) {
|
|
if ($type == 'insert')
|
|
return "\n/* Restore session variables to original values */\nSET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;\n";
|
|
return '';
|
|
}
|
|
|
|
function set_constraint( $constraint, $value ) {
|
|
switch ($constraint) {
|
|
case 'fkey':
|
|
$this->query('SET FOREIGN_KEY_CHECKS=' . ($value ? '1' : '0') );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
?>
|