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Commit a123dfe7 authored by tbrehm's avatar tbrehm
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Updated mysql database library to support replication.

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server/lib/classes/db_mysql.inc.php
+ 424
− 418
View file @ a123dfe7
<?php <?php
/* /*
Copyright (c) 2007, Till Brehm, projektfarm Gmbh Copyright (c) 2005, Till Brehm, projektfarm Gmbh
All rights reserved. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, Redistribution and use in source and binary forms, with or without modification,
...@@ -28,462 +27,469 @@ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, ...@@ -28,462 +27,469 @@ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/ */
class db class db
{
var $dbHost = ""; // hostname of the MySQL server
var $dbName = ""; // logical database name on that server
var $dbUser = ""; // database authorized user
var $dbPass = ""; // user's password
var $dbCharset = ""; // what charset comes and goes to mysql: utf8 / latin1
var $linkId = 0; // last result of mysql_connect()
var $queryId = 0; // last result of mysql_query()
var $record = array(); // last record fetched
var $autoCommit = 1; // Autocommit Transactions
var $currentRow; // current row number
var $errorNumber = 0; // last error number
var $errorMessage = ""; // last error message
var $errorLocation = ""; // last error location
var $show_error_messages = false;
// constructor
function db()
{ {
var $dbHost = ""; // hostname of the MySQL server
global $conf; var $dbName = ""; // logical database name on that server
$this->dbHost = $conf["db_host"]; var $dbUser = ""; // database authorized user
$this->dbName = $conf["db_database"]; var $dbPass = ""; // user's password
$this->dbUser = $conf["db_user"]; var $linkId = 0; // last result of mysql_connect()
$this->dbPass = $conf["db_password"]; var $queryId = 0; // last result of mysql_query()
$this->dbCharset = $conf["db_charset"]; var $record = array(); // last record fetched
//$this->connect(); var $autoCommit = 1; // Autocommit Transactions
} var $currentRow; // current row number
var $errorNumber = 0; // last error number
var $errorMessage = ""; // last error message
var $errorLocation = "";// last error location
var $show_error_messages = false;
// error handler // constructor
function updateError($location) function db()
{
$this->errorNumber = mysql_errno();
$this->errorMessage = mysql_error();
$this->errorLocation = $location;
if($this->errorNumber && $this->show_error_messages)
{ {
echo('<br /><b>'.$this->errorLocation.'</b><br />'.$this->errorMessage);
flush(); global $conf;
$this->dbHost = $conf["db_host"];
$this->dbName = $conf["db_database"];
$this->dbUser = $conf["db_user"];
$this->dbPass = $conf["db_password"];
//$this->connect();
} }
}
function connect() // error handler
{ function updateError($location)
if($this->linkId == 0)
{ {
$this->linkId = mysql_connect($this->dbHost, $this->dbUser, $this->dbPass); $this->errorNumber = mysql_errno();
if(!$this->linkId) $this->errorMessage = mysql_error();
$this->errorLocation = $location;
if($this->errorNumber && $this->show_error_messages)
{ {
$this->updateError('DB::connect()<br />mysql_connect'); echo('<br /><b>'.$this->errorLocation.'</b><br />'.$this->errorMessage);
return false; flush();
} }
$this->queryId = @mysql_query('SET NAMES '.$this->dbCharset, $this->linkId);
} }
return true;
}
function query($queryString) function connect()
{
if(!$this->connect())
{ {
return false; if($this->linkId == 0)
} {
if(!mysql_select_db($this->dbName, $this->linkId)) $this->linkId = mysql_connect($this->dbHost, $this->dbUser, $this->dbPass);
{ if(!$this->linkId)
$this->updateError('DB::connect()<br />mysql_select_db'); {
return false; $this->updateError('DB::connect()<br />mysql_connect');
} return false;
$this->queryId = @mysql_query($queryString, $this->linkId); }
$this->updateError('DB::query('.$queryString.')<br />mysql_query'); }
if(!$this->queryId) return true;
{
return false;
} }
$this->currentRow = 0;
return $this->queryId;
}
// returns all records in an array function query($queryString)
function queryAllRecords($queryString)
{
if(!$this->query($queryString))
{ {
return false; if(!$this->connect())
{
return false;
}
if(!mysql_select_db($this->dbName, $this->linkId))
{
$this->updateError('DB::connect()<br />mysql_select_db');
return false;
}
$this->queryId = @mysql_query($queryString, $this->linkId);
$this->updateError('DB::query('.$queryString.')<br />mysql_query');
if(!$this->queryId)
{
return false;
}
$this->currentRow = 0;
return $this->queryId;
} }
$ret = array();
while($line = $this->nextRecord()) // returns all records in an array
function queryAllRecords($queryString)
{ {
$ret[] = $line; if(!$this->query($queryString))
{
return false;
}
$ret = array();
while($line = $this->nextRecord())
{
$ret[] = $line;
}
return $ret;
} }
return $ret;
}
// returns one record in an array // returns one record in an array
function queryOneRecord($queryString) function queryOneRecord($queryString)
{
if(!$this->query($queryString) || $this->numRows() == 0)
{ {
return false; if(!$this->query($queryString) || $this->numRows() == 0)
{
return false;
}
return $this->nextRecord();
} }
return $this->nextRecord();
}
// returns the next record in an array // returns the next record in an array
function nextRecord() function nextRecord()
{
$this->record = mysql_fetch_assoc($this->queryId);
$this->updateError('DB::nextRecord()<br />mysql_fetch_array');
if(!$this->record || !is_array($this->record))
{ {
return false; $this->record = mysql_fetch_assoc($this->queryId);
$this->updateError('DB::nextRecord()<br />mysql_fetch_array');
if(!$this->record || !is_array($this->record))
{
return false;
}
$this->currentRow++;
return $this->record;
} }
$this->currentRow++;
return $this->record;
}
// returns number of rows returned by the last select query // returns number of rows returned by the last select query
function numRows() function numRows()
{ {
return mysql_num_rows($this->queryId); return mysql_num_rows($this->queryId);
}
// returns mySQL insert id
function insertID()
{
return mysql_insert_id($this->linkId);
}
// Check der variablen
// deprecated, now use quote
function check($formfield)
{
return $this->quote($formfield);
}
// Check der variablen
function quote($formfield)
{
if(!$this->connect()){
$this->updateError('WARNING: mysql_connect: Used addslashes instead of mysql_real_escape_string');
return addslashes($formfield);
} }
return mysql_real_escape_string($formfield); // returns mySQL insert id
} function insertID()
{
// Check der variablen return mysql_insert_id($this->linkId);
function unquote($formfield)
{
return stripslashes($formfield);
}
function toLower($record) {
if(is_array($record)) {
foreach($record as $key => $val) {
$key = strtolower($key);
$out[$key] = $val;
}
} }
return $out;
} // Check der variablen
// deprecated, now use quote
function check($formfield)
function insert($tablename,$form,$debug = 0) {
{ return $this->quote($formfield);
if(is_array($form)){
foreach($form as $key => $value)
{
$sql_key .= "$key, ";
$sql_value .= "'".$this->check($value)."', ";
}
$sql_key = substr($sql_key,0,strlen($sql_key) - 2);
$sql_value = substr($sql_value,0,strlen($sql_value) - 2);
$sql = "INSERT INTO $tablename (" . $sql_key . ") VALUES (" . $sql_value .")";
if($debug == 1) echo "SQL-Statement: ".$sql."<br><br>";
$this->query($sql);
if($debug == 1) echo "mySQL Error Message: ".$this->errorMessage;
}
}
function update($tablename,$form,$bedingung,$debug = 0)
{
if(is_array($form)){
foreach($form as $key => $value)
{
$insql .= "$key = '".$this->check($value)."', ";
}
$insql = substr($insql,0,strlen($insql) - 2);
$sql = "UPDATE $tablename SET " . $insql . " WHERE $bedingung";
if($debug == 1) echo "SQL-Statement: ".$sql."<br><br>";
$this->query($sql);
if($debug == 1) echo "mySQL Error Message: ".$this->errorMessage;
}
}
function closeConn() {
}
function freeResult() {
}
function delete() {
}
function Transaction($action) {
//action = begin, commit oder rollback
}
/*
$columns = array(action => add | alter | drop
name => Spaltenname
name_new => neuer Spaltenname, nur bei 'alter' belegt
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
typeValue => Wert z.B. bei Varchar
defaultValue => Default Wert
notNull => true | false
autoInc => true | false
option => unique | primary | index)
*/
function createTable($table_name,$columns) {
$index = "";
$sql = "CREATE TABLE $table_name (";
foreach($columns as $col){
$sql .= $col["name"]." ".$this->mapType($col["type"],$col["typeValue"])." ";
if($col["defaultValue"] != "") $sql .= "DEFAULT '".$col["defaultValue"]."' ";
if($col["notNull"] == true) {
$sql .= "NOT NULL ";
} else {
$sql .= "NULL ";
}
if($col["autoInc"] == true) $sql .= "auto_increment ";
$sql.= ",";
// key Definitionen
if($col["option"] == "primary") $index .= "PRIMARY KEY (".$col["name"]."),";
if($col["option"] == "index") $index .= "INDEX (".$col["name"]."),";
if($col["option"] == "unique") $index .= "UNIQUE (".$col["name"]."),";
}
$sql .= $index;
$sql = substr($sql,0,-1);
$sql .= ")";
$this->query($sql);
return true;
}
/*
$columns = array(action => add | alter | drop
name => Spaltenname
name_new => neuer Spaltenname, nur bei 'alter' belegt
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
typeValue => Wert z.B. bei Varchar
defaultValue => Default Wert
notNull => true | false
autoInc => true | false
option => unique | primary | index)
*/
function alterTable($table_name,$columns) {
$index = "";
$sql = "ALTER TABLE $table_name ";
foreach($columns as $col){
if($col["action"] == 'add') {
$sql .= "ADD ".$col["name"]." ".$this->mapType($col["type"],$col["typeValue"])." ";
} elseif ($col["action"] == 'alter') {
$sql .= "CHANGE ".$col["name"]." ".$col["name_new"]." ".$this->mapType($col["type"],$col["typeValue"])." ";
} elseif ($col["action"] == 'drop') {
$sql .= "DROP ".$col["name"]." ";
}
if($col["action"] != 'drop') {
if($col["defaultValue"] != "") $sql .= "DEFAULT '".$col["defaultValue"]."' ";
if($col["notNull"] == true) {
$sql .= "NOT NULL ";
} else {
$sql .= "NULL ";
} }
if($col["autoInc"] == true) $sql .= "auto_increment ";
$sql.= ","; // Check der variablen
// key Definitionen function quote($formfield)
if($col["option"] == "primary") $index .= "PRIMARY KEY (".$col["name"]."),"; {
if($col["option"] == "index") $index .= "INDEX (".$col["name"]."),"; if(!$this->connect()){
if($col["option"] == "unique") $index .= "UNIQUE (".$col["name"]."),"; $this->updateError('WARNING: mysql_connect: Used addslashes instead of mysql_real_escape_string');
return addslashes($formfield);
}
return mysql_real_escape_string($formfield);
} }
}
$sql .= $index; // Check der variablen
$sql = substr($sql,0,-1); function unquote($formfield)
{
//die($sql); return stripslashes($formfield);
$this->query($sql);
return true;
}
function dropTable($table_name) {
$this->check($table_name);
$sql = "DROP TABLE '". $table_name."'";
return $this->query($sql);
}
// gibt Array mit Tabellennamen zurück
function getTables($database_name = '') {
if($database_name == '') $database_name = $this->dbName;
$result = mysql_list_tables($database_name);
for ($i = 0; $i < mysql_num_rows($result); $i++) {
$tb_names[$i] = mysql_tablename($result, $i);
} }
return $tb_names;
} function toLower($record) {
if(is_array($record)) {
// gibt Feldinformationen zur Tabelle zurück foreach($record as $key => $val) {
/* $key = strtolower($key);
$columns = array(action => add | alter | drop $out[$key] = $val;
name => Spaltenname }
name_new => neuer Spaltenname, nur bei 'alter' belegt }
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob return $out;
typeValue => Wert z.B. bei Varchar }
defaultValue => Default Wert
notNull => true | false
autoInc => true | false function insert($tablename,$form,$debug = 0)
option => unique | primary | index) {
if(is_array($form)){
foreach($form as $key => $value)
*/ {
$sql_key .= "$key, ";
function tableInfo($table_name) { $sql_value .= "'".$this->check($value)."', ";
}
global $go_api,$go_info; $sql_key = substr($sql_key,0,strlen($sql_key) - 2);
// Tabellenfelder einlesen $sql_value = substr($sql_value,0,strlen($sql_value) - 2);
if($rows = $go_api->db->queryAllRecords("SHOW FIELDS FROM ".$table_name)){
foreach($rows as $row) {
$name = $row[0];
$default = $row[4];
$key = $row[3];
$extra = $row[5];
$isnull = $row[2];
$type = $row[1];
$column = array(); $sql = "INSERT INTO $tablename (" . $sql_key . ") VALUES (" . $sql_value .")";
$column["name"] = $name; if($debug == 1) echo "SQL-Statement: ".$sql."<br><br>";
//$column["type"] = $type; $this->query($sql);
$column["defaultValue"] = $default; if($debug == 1) echo "mySQL Error Message: ".$this->errorMessage;
if(stristr($key,"PRI")) $column["option"] = "primary"; }
if(stristr($isnull,"YES")) { }
$column["notNull"] = false;
} else { function update($tablename,$form,$bedingung,$debug = 0)
$column["notNull"] = true; {
}
if($extra == 'auto_increment') $column["autoInc"] = true; if(is_array($form)){
foreach($form as $key => $value)
{
$insql .= "$key = '".$this->check($value)."', ";
}
$insql = substr($insql,0,strlen($insql) - 2);
$sql = "UPDATE $tablename SET " . $insql . " WHERE $bedingung";
if($debug == 1) echo "SQL-Statement: ".$sql."<br><br>";
$this->query($sql);
if($debug == 1) echo "mySQL Error Message: ".$this->errorMessage;
}
}
public function closeConn()
{
if($this->linkId)
{
mysql_close($this->linkId);
return true;
} else { return false; }
}
public function freeResult($query)
{
if(mysql_free_result($query))
{
return true;
} else {
return false;
}
}
function delete() {
}
function Transaction($action) {
//action = begin, commit oder rollback
}
/*
$columns = array(action => add | alter | drop
name => Spaltenname
name_new => neuer Spaltenname, nur bei 'alter' belegt
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
typeValue => Wert z.B. bei Varchar
defaultValue => Default Wert
notNull => true | false
autoInc => true | false
option => unique | primary | index)
*/
function createTable($table_name,$columns) {
$index = "";
$sql = "CREATE TABLE $table_name (";
foreach($columns as $col){
$sql .= $col["name"]." ".$this->mapType($col["type"],$col["typeValue"])." ";
if($col["defaultValue"] != "") $sql .= "DEFAULT '".$col["defaultValue"]."' ";
if($col["notNull"] == true) {
$sql .= "NOT NULL ";
} else {
$sql .= "NULL ";
}
if($col["autoInc"] == true) $sql .= "auto_increment ";
$sql.= ",";
// key Definitionen
if($col["option"] == "primary") $index .= "PRIMARY KEY (".$col["name"]."),";
if($col["option"] == "index") $index .= "INDEX (".$col["name"]."),";
if($col["option"] == "unique") $index .= "UNIQUE (".$col["name"]."),";
}
$sql .= $index;
$sql = substr($sql,0,-1);
$sql .= ")";
$this->query($sql);
return true;
}
/*
$columns = array(action => add | alter | drop
name => Spaltenname
name_new => neuer Spaltenname, nur bei 'alter' belegt
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
typeValue => Wert z.B. bei Varchar
defaultValue => Default Wert
notNull => true | false
autoInc => true | false
option => unique | primary | index)
*/
function alterTable($table_name,$columns) {
$index = "";
$sql = "ALTER TABLE $table_name ";
foreach($columns as $col){
if($col["action"] == 'add') {
$sql .= "ADD ".$col["name"]." ".$this->mapType($col["type"],$col["typeValue"])." ";
} elseif ($col["action"] == 'alter') {
$sql .= "CHANGE ".$col["name"]." ".$col["name_new"]." ".$this->mapType($col["type"],$col["typeValue"])." ";
} elseif ($col["action"] == 'drop') {
$sql .= "DROP ".$col["name"]." ";
}
if($col["action"] != 'drop') {
if($col["defaultValue"] != "") $sql .= "DEFAULT '".$col["defaultValue"]."' ";
if($col["notNull"] == true) {
$sql .= "NOT NULL ";
} else {
$sql .= "NULL ";
}
if($col["autoInc"] == true) $sql .= "auto_increment ";
$sql.= ",";
// key Definitionen
if($col["option"] == "primary") $index .= "PRIMARY KEY (".$col["name"]."),";
if($col["option"] == "index") $index .= "INDEX (".$col["name"]."),";
if($col["option"] == "unique") $index .= "UNIQUE (".$col["name"]."),";
}
}
$sql .= $index;
$sql = substr($sql,0,-1);
//die($sql);
$this->query($sql);
return true;
}
function dropTable($table_name) {
$this->check($table_name);
$sql = "DROP TABLE '". $table_name."'";
return $this->query($sql);
}
// gibt Array mit Tabellennamen zurück
function getTables($database_name = '') {
if($database_name == '') $database_name = $this->dbName;
$result = mysql_list_tables($database_name);
for ($i = 0; $i < mysql_num_rows($result); $i++) {
$tb_names[$i] = mysql_tablename($result, $i);
}
return $tb_names;
}
// gibt Feldinformationen zur Tabelle zurück
/*
$columns = array(action => add | alter | drop
name => Spaltenname
name_new => neuer Spaltenname, nur bei 'alter' belegt
type => 42go-Meta-Type: int16, int32, int64, double, char, varchar, text, blob
typeValue => Wert z.B. bei Varchar
defaultValue => Default Wert
notNull => true | false
autoInc => true | false
option => unique | primary | index)
*/
function tableInfo($table_name) {
global $go_api,$go_info;
// Tabellenfelder einlesen
if($rows = $go_api->db->queryAllRecords("SHOW FIELDS FROM ".$table_name)){
foreach($rows as $row) {
$name = $row[0];
$default = $row[4];
$key = $row[3];
$extra = $row[5];
$isnull = $row[2];
$type = $row[1];
// Type in Metatype umsetzen
$column = array();
if(stristr($type,"int(")) $metaType = 'int32'; $column["name"] = $name;
if(stristr($type,"bigint")) $metaType = 'int64'; //$column["type"] = $type;
if(stristr($type,"char")) { $column["defaultValue"] = $default;
$metaType = 'char'; if(stristr($key,"PRI")) $column["option"] = "primary";
$tmp_typeValue = explode('(',$type); if(stristr($isnull,"YES")) {
$column["typeValue"] = substr($tmp_typeValue[1],0,-1); $column["notNull"] = false;
} else {
$column["notNull"] = true;
}
if($extra == 'auto_increment') $column["autoInc"] = true;
// Type in Metatype umsetzen
if(stristr($type,"int(")) $metaType = 'int32';
if(stristr($type,"bigint")) $metaType = 'int64';
if(stristr($type,"char")) {
$metaType = 'char';
$tmp_typeValue = explode('(',$type);
$column["typeValue"] = substr($tmp_typeValue[1],0,-1);
}
if(stristr($type,"varchar")) {
$metaType = 'varchar';
$tmp_typeValue = explode('(',$type);
$column["typeValue"] = substr($tmp_typeValue[1],0,-1);
}
if(stristr($type,"text")) $metaType = 'text';
if(stristr($type,"double")) $metaType = 'double';
if(stristr($type,"blob")) $metaType = 'blob';
$column["type"] = $metaType;
$columns[] = $column;
} }
if(stristr($type,"varchar")) { return $columns;
$metaType = 'varchar'; } else {
$tmp_typeValue = explode('(',$type); return false;
$column["typeValue"] = substr($tmp_typeValue[1],0,-1);
} }
if(stristr($type,"text")) $metaType = 'text';
if(stristr($type,"double")) $metaType = 'double';
if(stristr($type,"blob")) $metaType = 'blob';
$column["type"] = $metaType; //$this->createTable('tester',$columns);
$columns[] = $column; /*
} $result = mysql_list_fields($go_info["server"]["db_name"],$table_name);
return $columns; $fields = mysql_num_fields ($result);
} else { $i = 0;
return false; $table = mysql_field_table ($result, $i);
} while ($i < $fields) {
$name = mysql_field_name ($result, $i);
$type = mysql_field_type ($result, $i);
//$this->createTable('tester',$columns); $len = mysql_field_len ($result, $i);
$flags = mysql_field_flags ($result, $i);
/* print_r($flags);
$result = mysql_list_fields($go_info["server"]["db_name"],$table_name);
$fields = mysql_num_fields ($result); $columns = array(name => $name,
$i = 0; type => "",
$table = mysql_field_table ($result, $i); defaultValue => "",
while ($i < $fields) { isnull => 1,
$name = mysql_field_name ($result, $i); option => "");
$type = mysql_field_type ($result, $i); $returnvar[] = $columns;
$len = mysql_field_len ($result, $i);
$flags = mysql_field_flags ($result, $i); $i++;
print_r($flags); }
*/
$columns = array(name => $name,
type => "",
defaultValue => "",
isnull => 1,
option => "");
$returnvar[] = $columns;
$i++;
} }
*/
function mapType($metaType,$typeValue) {
global $go_api;
$metaType = strtolower($metaType);
} switch ($metaType) {
case 'int16':
function mapType($metaType,$typeValue) { return 'smallint';
global $go_api; break;
$metaType = strtolower($metaType); case 'int32':
switch ($metaType) { return 'int';
case 'int16': break;
return 'smallint'; case 'int64':
break; return 'bigint';
case 'int32': break;
return 'int'; case 'double':
break; return 'double';
case 'int64': break;
return 'bigint'; case 'char':
break; return 'char';
case 'double': break;
return 'double'; case 'varchar':
break; if($typeValue < 1) die("Datenbank Fehler: Für diesen Datentyp ist eine Längenangabe notwendig.");
case 'char': return 'varchar('.$typeValue.')';
return 'char'; break;
break; case 'text':
case 'varchar': return 'text';
if($typeValue < 1) die("Datenbank Fehler: Für diesen Datentyp ist eine Längenangabe notwendig."); break;
return 'varchar('.$typeValue.')'; case 'blob':
break; return 'blob';
case 'text': break;
return 'text'; }
break; }
case 'blob':
return 'blob'; }
break;
}
}
}
?> ?>
\ No newline at end of file
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