* @param $password String: database user password
* @param $dbName String: database name
*/
- function open( $server, $user, $password, $dbName ) {
- global $wgAllDBsAreLocalhost;
- wfProfileIn( __METHOD__ );
-
- # Test for missing mysql.so
- # First try to load it
- if (!@extension_loaded('mysql')) {
- @dl('mysql.so');
- }
-
- # Fail now
- # Otherwise we get a suppressed fatal error, which is very hard to track down
- if ( !function_exists( 'mysql_connect' ) ) {
- throw new DBConnectionError( $this, "MySQL functions missing, have you compiled PHP with the --with-mysql option?\n" );
- }
-
- # Debugging hack -- fake cluster
- if ( $wgAllDBsAreLocalhost ) {
- $realServer = 'localhost';
- } else {
- $realServer = $server;
- }
- $this->close();
- $this->mServer = $server;
- $this->mUser = $user;
- $this->mPassword = $password;
- $this->mDBname = $dbName;
-
- $success = false;
-
- wfProfileIn("dbconnect-$server");
-
- # The kernel's default SYN retransmission period is far too slow for us,
- # so we use a short timeout plus a manual retry. Retrying means that a small
- # but finite rate of SYN packet loss won't cause user-visible errors.
- $this->mConn = false;
- if ( ini_get( 'mysql.connect_timeout' ) <= 3 ) {
- $numAttempts = 2;
- } else {
- $numAttempts = 1;
- }
- $this->installErrorHandler();
- for ( $i = 0; $i < $numAttempts && !$this->mConn; $i++ ) {
- if ( $i > 1 ) {
- usleep( 1000 );
- }
- if ( $this->mFlags & DBO_PERSISTENT ) {
- $this->mConn = mysql_pconnect( $realServer, $user, $password );
- } else {
- # Create a new connection...
- $this->mConn = mysql_connect( $realServer, $user, $password, true );
- }
- if ($this->mConn === false) {
- #$iplus = $i + 1;
- #wfLogDBError("Connect loop error $iplus of $max ($server): " . mysql_errno() . " - " . mysql_error()."\n");
- }
- }
- $phpError = $this->restoreErrorHandler();
- # Always log connection errors
- if ( !$this->mConn ) {
- $error = $this->lastError();
- if ( !$error ) {
- $error = $phpError;
- }
- wfLogDBError( "Error connecting to {$this->mServer}: $error\n" );
- wfDebug( "DB connection error\n" );
- wfDebug( "Server: $server, User: $user, Password: " .
- substr( $password, 0, 3 ) . "..., error: " . mysql_error() . "\n" );
- $success = false;
- }
-
- wfProfileOut("dbconnect-$server");
-
- if ( $dbName != '' && $this->mConn !== false ) {
- $success = @/**/mysql_select_db( $dbName, $this->mConn );
- if ( !$success ) {
- $error = "Error selecting database $dbName on server {$this->mServer} " .
- "from client host " . wfHostname() . "\n";
- wfLogDBError(" Error selecting database $dbName on server {$this->mServer} \n");
- wfDebug( $error );
- }
- } else {
- # Delay USE query
- $success = (bool)$this->mConn;
- }
-
- if ( $success ) {
- $version = $this->getServerVersion();
- if ( version_compare( $version, '4.1' ) >= 0 ) {
- // Tell the server we're communicating with it in UTF-8.
- // This may engage various charset conversions.
- global $wgDBmysql5;
- if( $wgDBmysql5 ) {
- $this->query( 'SET NAMES utf8', __METHOD__ );
- }
- // Turn off strict mode
- $this->query( "SET sql_mode = ''", __METHOD__ );
- }
-
- // Turn off strict mode if it is on
- } else {
- $this->reportConnectionError( $phpError );
- }
-
- $this->mOpened = $success;
- wfProfileOut( __METHOD__ );
- return $success;
- }
+ abstract function open( $server, $user, $password, $dbName );
protected function installErrorHandler() {
$this->mPHPError = false;
*
* @return Bool operation success. true if already closed.
*/
- function close()
- {
- $this->mOpened = false;
- if ( $this->mConn ) {
- if ( $this->trxLevel() ) {
- $this->immediateCommit();
- }
- return mysql_close( $this->mConn );
- } else {
- return true;
- }
- }
+ abstract function close();
/**
* @param $error String: fallback error message, used if none is given by MySQL
* @return Result object to feed to fetchObject, fetchRow, ...; or false on failure
* @private
*/
- /*private*/ function doQuery( $sql ) {
- if( $this->bufferResults() ) {
- $ret = mysql_query( $sql, $this->mConn );
- } else {
- $ret = mysql_unbuffered_query( $sql, $this->mConn );
- }
- return $ret;
- }
+ /*private*/ abstract function doQuery( $sql );
/**
* @param $error String
* Free a result object
* @param $res Mixed: A SQL result
*/
- function freeResult( $res ) {
- if ( $res instanceof ResultWrapper ) {
- $res = $res->result;
- }
- if ( !@/**/mysql_free_result( $res ) ) {
- throw new DBUnexpectedError( $this, "Unable to free MySQL result" );
- }
- }
+ abstract function freeResult( $res );
/**
* Fetch the next row from the given result object, in object form.
* @return MySQL row object
* @throws DBUnexpectedError Thrown if the database returns an error
*/
- function fetchObject( $res ) {
- if ( $res instanceof ResultWrapper ) {
- $res = $res->result;
- }
- @/**/$row = mysql_fetch_object( $res );
- if( $this->lastErrno() ) {
- throw new DBUnexpectedError( $this, 'Error in fetchObject(): ' . htmlspecialchars( $this->lastError() ) );
- }
- return $row;
- }
+ abstract function fetchObject( $res );
/**
* Fetch the next row from the given result object, in associative array
* @return MySQL row object
* @throws DBUnexpectedError Thrown if the database returns an error
*/
- function fetchRow( $res ) {
- if ( $res instanceof ResultWrapper ) {
- $res = $res->result;
- }
- @/**/$row = mysql_fetch_array( $res );
- if ( $this->lastErrno() ) {
- throw new DBUnexpectedError( $this, 'Error in fetchRow(): ' . htmlspecialchars( $this->lastError() ) );
- }
- return $row;
- }
+ abstract function fetchRow( $res );
/**
* Get the number of rows in a result object
* @param $res Mixed: A SQL result
*/
- function numRows( $res ) {
- if ( $res instanceof ResultWrapper ) {
- $res = $res->result;
- }
- @/**/$n = mysql_num_rows( $res );
- if( $this->lastErrno() ) {
- throw new DBUnexpectedError( $this, 'Error in numRows(): ' . htmlspecialchars( $this->lastError() ) );
- }
- return $n;
- }
+ abstract function numRows( $res );
/**
* Get the number of fields in a result object
* See documentation for mysql_num_fields()
* @param $res Mixed: A SQL result
*/
- function numFields( $res ) {
- if ( $res instanceof ResultWrapper ) {
- $res = $res->result;
- }
- return mysql_num_fields( $res );
- }
+ abstract function numFields( $res );
/**
* Get a field name in a result object
* @param $res Mixed: A SQL result
* @param $n Integer
*/
- function fieldName( $res, $n ) {
- if ( $res instanceof ResultWrapper ) {
- $res = $res->result;
- }
- return mysql_field_name( $res, $n );
- }
+ abstract function fieldName( $res, $n );
/**
* Get the inserted value of an auto-increment row
* $dbw->insert('page',array('page_id' => $id));
* $id = $dbw->insertId();
*/
- function insertId() { return mysql_insert_id( $this->mConn ); }
+ abstract function insertId();
/**
* Change the position of the cursor in a result object
* @param $res Mixed: A SQL result
* @param $row Mixed: Either MySQL row or ResultWrapper
*/
- function dataSeek( $res, $row ) {
- if ( $res instanceof ResultWrapper ) {
- $res = $res->result;
- }
- return mysql_data_seek( $res, $row );
- }
+ abstract function dataSeek( $res, $row );
/**
* Get the last error number
* See mysql_errno()
*/
- function lastErrno() {
- if ( $this->mConn ) {
- return mysql_errno( $this->mConn );
- } else {
- return mysql_errno();
- }
- }
+ abstract function lastErrno();
/**
* Get a description of the last error
* See mysql_error() for more details
*/
- function lastError() {
- if ( $this->mConn ) {
- # Even if it's non-zero, it can still be invalid
- wfSuppressWarnings();
- $error = mysql_error( $this->mConn );
- if ( !$error ) {
- $error = mysql_error();
- }
- wfRestoreWarnings();
- } else {
- $error = mysql_error();
- }
- if( $error ) {
- $error .= ' (' . $this->mServer . ')';
- }
- return $error;
- }
+ abstract function lastError();
+
/**
* Get the number of rows affected by the last write query
* See mysql_affected_rows() for more details
*/
- function affectedRows() { return mysql_affected_rows( $this->mConn ); }
+ abstract function affectedRows();
/**
* Simple UPDATE wrapper
* @param $table
* @param $field
*/
- function fieldInfo( $table, $field ) {
- $table = $this->tableName( $table );
- $res = $this->query( "SELECT * FROM $table LIMIT 1" );
- $n = mysql_num_fields( $res->result );
- for( $i = 0; $i < $n; $i++ ) {
- $meta = mysql_fetch_field( $res->result, $i );
- if( $field == $meta->name ) {
- return new MySQLField($meta);
- }
- }
- return false;
- }
+ abstract function fieldInfo( $table, $field );
/**
* mysql_field_type() wrapper
/**
* Change the current database
*/
- function selectDB( $db ) {
- $this->mDBname = $db;
- return mysql_select_db( $db, $this->mConn );
- }
+ abstract function selectDB( $db );
/**
* Get the current DB name
* @param $s String: to be slashed.
* @return String: slashed string.
*/
- function strencode( $s ) {
- return mysql_real_escape_string( $s, $this->mConn );
- }
+ abstract function strencode( $s );
/**
* If it's a string, adds quotes and backslashes
/**
* @return String: Version information from the database
*/
- function getServerVersion() {
- return mysql_get_server_info( $this->mConn );
- }
+ abstract function getServerVersion();
/**
* Ping the server and try to reconnect if it there is no connection
*/
- function ping() {
- if( !function_exists( 'mysql_ping' ) ) {
- wfDebug( "Tried to call mysql_ping but this is ancient PHP version. Faking it!\n" );
- return true;
- }
- $ping = mysql_ping( $this->mConn );
- if ( $ping ) {
- return true;
- }
-
- // Need to reconnect manually in MySQL client 5.0.13+
- if ( version_compare( mysql_get_client_info(), '5.0.13', '>=' ) ) {
- mysql_close( $this->mConn );
- $this->mOpened = false;
- $this->mConn = false;
- $this->open( $this->mServer, $this->mUser, $this->mPassword, $this->mDBname );
- return true;
- }
- return false;
- }
+ abstract function ping();
/**
* Get slave lag.
}
}
-/**
- * Database abstraction object for mySQL
- * Inherit all methods and properties of Database::Database()
- *
- * @ingroup Database
- * @see Database
- */
-class DatabaseMysql extends DatabaseBase {
- # Inherit all
-}
-
-/**
- * Legacy support: Database == DatabaseMysql
- */
-class Database extends DatabaseMysql {}
/******************************************************************************
* Utility classes
return $this->current() !== false;
}
}
-
-class MySQLMasterPos {
- var $file, $pos;
-
- function __construct( $file, $pos ) {
- $this->file = $file;
- $this->pos = $pos;
- }
-
- function __toString() {
- return "{$this->file}/{$this->pos}";
- }
-}
dépôts / lhc / web / wiklou.git / blobdiff