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synced 2026-05-28 04:32:30 -04:00
Remove other database implementations from OC_DB
This commit is contained in:
Bart Visscher
parent
8fb36c93f5
commit
8bb62e74bd
1 changed files with 25 additions and 370 deletions
395
lib/db.php
395
lib/db.php
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@ -23,57 +23,31 @@
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define('MDB2_SCHEMA_DUMP_STRUCTURE', '1');
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/**
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* This class manages the access to the database. It basically is a wrapper for
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* MDB2 with some adaptions.
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* Doctrine with some adaptions.
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*/
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class OC_DB {
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const BACKEND_PDO=0;
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const BACKEND_MDB2=1;
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const BACKEND_DOCTRINE=2;
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/**
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* @var MDB2_Driver_Common
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* @var \Doctrine\DBAL\Connection
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*/
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static private $connection; //the prefered connection to use, either PDO or MDB2
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static private $connection; //the prefered connection to use, only Doctrine
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static private $backend=null;
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/**
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* @var MDB2_Driver_Common
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*/
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static private $MDB2=null;
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/**
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* @var Doctrine
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*/
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static private $DOCTRINE=null;
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/**
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* @var PDO
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*/
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static private $PDO=null;
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/**
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* @var MDB2_Schema
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*/
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static private $schema=null;
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static private $inTransaction=false;
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static private $prefix=null;
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static private $type=null;
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/**
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* check which backend we should use
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* @return int BACKEND_MDB2 or BACKEND_PDO
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* @return int BACKEND_DOCTRINE
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*/
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private static function getDBBackend() {
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return self::BACKEND_DOCTRINE;
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//check if we can use PDO, else use MDB2 (installation always needs to be done my mdb2)
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if(class_exists('PDO') && OC_Config::getValue('installed', false)) {
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$type = OC_Config::getValue( "dbtype", "sqlite" );
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if($type=='oci') { //oracle also always needs mdb2
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return self::BACKEND_MDB2;
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}
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if($type=='sqlite3') $type='sqlite';
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$drivers=PDO::getAvailableDrivers();
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if(array_search($type, $drivers)!==false) {
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return self::BACKEND_PDO;
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}
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}
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return self::BACKEND_MDB2;
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}
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/**
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@ -94,15 +68,6 @@ class OC_DB {
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$success = self::connectDoctrine();
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self::$connection=self::$DOCTRINE;
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self::$backend=self::BACKEND_DOCTRINE;
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} else
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if($backend==self::BACKEND_PDO) {
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$success = self::connectPDO();
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self::$connection=self::$PDO;
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self::$backend=self::BACKEND_PDO;
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}else{
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$success = self::connectMDB2();
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self::$connection=self::$MDB2;
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self::$backend=self::BACKEND_MDB2;
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}
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return $success;
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}
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@ -137,14 +102,6 @@ class OC_DB {
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$config = new \Doctrine\DBAL\Configuration();
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switch($type) {
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case 'sqlite':
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if (!self::connectPDO()) {
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return false;
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}
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$connectionParams = array(
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'driver' => 'pdo',
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'pdo' => self::$PDO,
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);
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break;
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case 'sqlite3':
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$datadir=OC_Config::getValue( "datadirectory", OC::$SERVERROOT.'/data' );
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$connectionParams = array(
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@ -194,220 +151,33 @@ class OC_DB {
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return true;
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}
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/**
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* connect to the database using pdo
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*
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* @return bool
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*/
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public static function connectPDO() {
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if(self::$connection) {
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if(self::$backend==self::BACKEND_MDB2) {
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self::disconnect();
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}else{
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return true;
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}
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}
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// The global data we need
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$name = OC_Config::getValue( "dbname", "owncloud" );
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$host = OC_Config::getValue( "dbhost", "" );
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$user = OC_Config::getValue( "dbuser", "" );
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$pass = OC_Config::getValue( "dbpassword", "" );
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$type = OC_Config::getValue( "dbtype", "sqlite" );
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if(strpos($host, ':')) {
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list($host, $port)=explode(':', $host,2);
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}else{
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$port=false;
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}
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$opts = array();
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$datadir=OC_Config::getValue( "datadirectory", OC::$SERVERROOT.'/data' );
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// do nothing if the connection already has been established
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if(!self::$PDO) {
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// Add the dsn according to the database type
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switch($type) {
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case 'sqlite':
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$dsn='sqlite2:'.$datadir.'/'.$name.'.db';
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break;
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case 'sqlite3':
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$dsn='sqlite:'.$datadir.'/'.$name.'.db';
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break;
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case 'mysql':
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if($port) {
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$dsn='mysql:dbname='.$name.';host='.$host.';port='.$port;
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}else{
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$dsn='mysql:dbname='.$name.';host='.$host;
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}
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$opts[PDO::MYSQL_ATTR_INIT_COMMAND] = "SET NAMES 'UTF8'";
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break;
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case 'pgsql':
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if($port) {
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$dsn='pgsql:dbname='.$name.';host='.$host.';port='.$port;
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}else{
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$dsn='pgsql:dbname='.$name.';host='.$host;
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}
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/**
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* Ugly fix for pg connections pbm when password use spaces
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*/
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$e_user = addslashes($user);
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$e_password = addslashes($pass);
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$pass = $user = null;
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$dsn .= ";user='$e_user';password='$e_password'";
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/** END OF FIX***/
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break;
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case 'oci': // Oracle with PDO is unsupported
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if ($port) {
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$dsn = 'oci:dbname=//' . $host . ':' . $port . '/' . $name;
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} else {
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$dsn = 'oci:dbname=//' . $host . '/' . $name;
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}
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break;
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default:
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return false;
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}
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try{
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self::$PDO=new PDO($dsn, $user, $pass, $opts);
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}catch(PDOException $e) {
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echo( '<b>can not connect to database, using '.$type.'. ('.$e->getMessage().')</center>');
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die();
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}
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// We always, really always want associative arrays
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self::$PDO->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
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self::$PDO->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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}
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return true;
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}
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/**
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* connect to the database using mdb2
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*/
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public static function connectMDB2() {
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if(self::$connection) {
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if(self::$backend==self::BACKEND_PDO) {
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self::disconnect();
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}else{
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return true;
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}
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}
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// The global data we need
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$name = OC_Config::getValue( "dbname", "owncloud" );
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$host = OC_Config::getValue( "dbhost", "" );
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$user = OC_Config::getValue( "dbuser", "" );
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$pass = OC_Config::getValue( "dbpassword", "" );
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$type = OC_Config::getValue( "dbtype", "sqlite" );
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$SERVERROOT=OC::$SERVERROOT;
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$datadir=OC_Config::getValue( "datadirectory", "$SERVERROOT/data" );
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// do nothing if the connection already has been established
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if(!self::$MDB2) {
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// Require MDB2.php (not required in the head of the file so we only load it when needed)
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require_once 'MDB2.php';
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// Prepare options array
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$options = array(
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'portability' => MDB2_PORTABILITY_ALL - MDB2_PORTABILITY_FIX_CASE,
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'log_line_break' => '<br>',
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'idxname_format' => '%s',
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'debug' => true,
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'quote_identifier' => true );
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// Add the dsn according to the database type
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switch($type) {
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case 'sqlite':
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case 'sqlite3':
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$dsn = array(
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'phptype' => $type,
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'database' => "$datadir/$name.db",
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'mode' => '0644'
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);
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break;
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case 'mysql':
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$dsn = array(
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'phptype' => 'mysql',
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'username' => $user,
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'password' => $pass,
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'hostspec' => $host,
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'database' => $name
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);
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break;
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case 'pgsql':
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$dsn = array(
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'phptype' => 'pgsql',
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'username' => $user,
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'password' => $pass,
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'hostspec' => $host,
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'database' => $name
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);
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break;
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case 'oci':
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$dsn = array(
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'phptype' => 'oci8',
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'username' => $user,
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'password' => $pass,
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'charset' => 'AL32UTF8',
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);
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if ($host != '') {
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$dsn['hostspec'] = $host;
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$dsn['database'] = $name;
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} else { // use dbname for hostspec
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$dsn['hostspec'] = $name;
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$dsn['database'] = $user;
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}
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break;
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default:
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return false;
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}
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// Try to establish connection
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self::$MDB2 = MDB2::factory( $dsn, $options );
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// Die if we could not connect
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if( PEAR::isError( self::$MDB2 )) {
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echo( '<b>can not connect to database, using '.$type.'. ('.self::$MDB2->getUserInfo().')</center>');
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OC_Log::write('core', self::$MDB2->getUserInfo(), OC_Log::FATAL);
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OC_Log::write('core', self::$MDB2->getMessage(), OC_Log::FATAL);
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die();
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}
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// We always, really always want associative arrays
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self::$MDB2->setFetchMode(MDB2_FETCHMODE_ASSOC);
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}
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// we are done. great!
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return true;
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}
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/**
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* @brief Prepare a SQL query
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* @param string $query Query string
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* @param int $limit
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* @param int $offset
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* @return MDB2_Statement_Common prepared SQL query
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* @return \Doctrine\DBAL\Statement prepared SQL query
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*
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* SQL query via MDB2 prepare(), needs to be execute()'d!
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* SQL query via Doctrine prepare(), needs to be execute()'d!
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*/
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static public function prepare( $query , $limit=null, $offset=null ) {
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if (!is_null($limit) && $limit != -1) {
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if (self::$backend == self::BACKEND_MDB2) {
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//MDB2 uses or emulates limits & offset internally
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self::$MDB2->setLimit($limit, $offset);
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//PDO does not handle limit and offset.
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//FIXME: check limit notation for other dbs
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//the following sql thus might needs to take into account db ways of representing it
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//(oracle has no LIMIT / OFFSET)
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$limit = (int)$limit;
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$limitsql = ' LIMIT ' . $limit;
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if (!is_null($offset)) {
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$offset = (int)$offset;
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$limitsql .= ' OFFSET ' . $offset;
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}
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//insert limitsql
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if (substr($query, -1) == ';') { //if query ends with ;
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$query = substr($query, 0, -1) . $limitsql . ';';
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} else {
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//PDO does not handle limit and offset.
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//FIXME: check limit notation for other dbs
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//the following sql thus might needs to take into account db ways of representing it
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//(oracle has no LIMIT / OFFSET)
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$limit = (int)$limit;
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$limitsql = ' LIMIT ' . $limit;
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if (!is_null($offset)) {
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$offset = (int)$offset;
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$limitsql .= ' OFFSET ' . $offset;
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}
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//insert limitsql
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if (substr($query, -1) == ';') { //if query ends with ;
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$query = substr($query, 0, -1) . $limitsql . ';';
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} else {
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$query.=$limitsql;
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}
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$query.=$limitsql;
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}
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}
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@ -427,29 +197,6 @@ class OC_DB {
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die( $entry );
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}
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$result=new DoctrineStatementWrapper($result);
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} else
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if(self::$backend==self::BACKEND_MDB2) {
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$result = self::$connection->prepare( $query );
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// Die if we have an error (error means: bad query, not 0 results!)
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if( PEAR::isError($result)) {
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$entry = 'DB Error: "'.$result->getMessage().'"<br />';
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$entry .= 'Offending command was: '.htmlentities($query).'<br />';
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OC_Log::write('core', $entry,OC_Log::FATAL);
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error_log('DB error: '.$entry);
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die( $entry );
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}
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}else{
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try{
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$result=self::$connection->prepare($query);
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}catch(PDOException $e) {
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$entry = 'DB Error: "'.$e->getMessage().'"<br />';
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$entry .= 'Offending command was: '.htmlentities($query).'<br />';
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OC_Log::write('core', $entry,OC_Log::FATAL);
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error_log('DB error: '.$entry);
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die( $entry );
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}
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$result=new PDOStatementWrapper($result);
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}
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return $result;
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}
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@ -459,7 +206,7 @@ class OC_DB {
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* @param string $table The optional table name (will replace *PREFIX*) and add sequence suffix
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* @return int id
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*
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* MDB2 lastInsertID()
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* \Doctrine\DBAL\Connection lastInsertId
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*
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* Call this method right after the insert command or other functions may
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* cause trouble!
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@ -483,13 +230,8 @@ class OC_DB {
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public static function disconnect() {
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// Cut connection if required
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if(self::$connection) {
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if(self::$backend==self::BACKEND_MDB2) {
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self::$connection->disconnect();
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}
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self::$connection=false;
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self::$DOCTRINE=false;
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self::$MDB2=false;
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self::$PDO=false;
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}
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return true;
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@ -630,9 +372,6 @@ class OC_DB {
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*/
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public static function beginTransaction() {
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self::connect();
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if (self::$backend==self::BACKEND_MDB2 && !self::$connection->supports('transactions')) {
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return false;
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}
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self::$connection->beginTransaction();
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self::$inTransaction=true;
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return true;
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@ -653,15 +392,13 @@ class OC_DB {
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}
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/**
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* check if a result is an error, works with MDB2 and PDOException
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* check if a result is an error, works with Doctrine
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* @param mixed $result
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* @return bool
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*/
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public static function isError($result) {
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if(!$result) {
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return true;
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}elseif(self::$backend==self::BACKEND_MDB2 and PEAR::isError($result)) {
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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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@ -669,27 +406,12 @@ class OC_DB {
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/**
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* returns the error code and message as a string for logging
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* works with MDB2 and PDOException
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* works with DoctrineException
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* @param mixed $error
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* @return string
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*/
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public static function getErrorMessage($error) {
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if ( self::$backend==self::BACKEND_MDB2 and PEAR::isError($error) ) {
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$msg = $error->getCode() . ': ' . $error->getMessage();
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if (defined('DEBUG') && DEBUG) {
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$msg .= '(' . $error->getDebugInfo() . ')';
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}
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} elseif (self::$backend==self::BACKEND_PDO and self::$PDO) {
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$msg = self::$PDO->errorCode() . ': ';
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$errorInfo = self::$PDO->errorInfo();
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if (is_array($errorInfo)) {
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$msg .= 'SQLSTATE = '.$errorInfo[0] . ', ';
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$msg .= 'Driver Code = '.$errorInfo[1] . ', ';
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$msg .= 'Driver Message = '.$errorInfo[2];
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}else{
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$msg = '';
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}
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} elseif (self::$backend==self::BACKEND_DOCTRINE and self::$DOCTRINE) {
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if (self::$backend==self::BACKEND_DOCTRINE and self::$DOCTRINE) {
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$msg = self::$DOCTRINE->errorCode() . ': ';
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$errorInfo = self::$DOCTRINE->errorInfo();
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if (is_array($errorInfo)) {
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@ -767,70 +489,3 @@ class DoctrineStatementWrapper {
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return $this->statement->fetchColumn($colnum);
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}
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}
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/**
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* small wrapper around PDOStatement to make it behave ,more like an MDB2 Statement
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*/
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class PDOStatementWrapper{
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/**
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* @var PDOStatement
|
||||
*/
|
||||
private $statement=null;
|
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private $lastArguments=array();
|
||||
|
||||
public function __construct($statement) {
|
||||
$this->statement=$statement;
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||||
}
|
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|
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/**
|
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* make execute return the result instead of a bool
|
||||
*/
|
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public function execute($input=array()) {
|
||||
$this->lastArguments=$input;
|
||||
if(count($input)>0) {
|
||||
$result=$this->statement->execute($input);
|
||||
}else{
|
||||
$result=$this->statement->execute();
|
||||
}
|
||||
if($result) {
|
||||
return $this;
|
||||
}else{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* provide numRows
|
||||
*/
|
||||
public function numRows() {
|
||||
$regex = '/^SELECT\s+(?:ALL\s+|DISTINCT\s+)?(?:.*?)\s+FROM\s+(.*)$/i';
|
||||
if (preg_match($regex, $this->statement->queryString, $output) > 0) {
|
||||
$query = OC_DB::prepare("SELECT COUNT(*) FROM {$output[1]}", PDO::FETCH_NUM);
|
||||
return $query->execute($this->lastArguments)->fetchColumn();
|
||||
}else{
|
||||
return $this->statement->rowCount();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* provide an alias for fetch
|
||||
*/
|
||||
public function fetchRow() {
|
||||
return $this->statement->fetch();
|
||||
}
|
||||
|
||||
/**
|
||||
* pass all other function directly to the PDOStatement
|
||||
*/
|
||||
public function __call($name,$arguments) {
|
||||
return call_user_func_array(array($this->statement,$name), $arguments);
|
||||
}
|
||||
|
||||
/**
|
||||
* Provide a simple fetchOne.
|
||||
* fetch single column from the next row
|
||||
* @param int $colnum the column number to fetch
|
||||
*/
|
||||
public function fetchOne($colnum = 0) {
|
||||
return $this->statement->fetchColumn($colnum);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue