-<?
-include_once( "FulltextStoplist.php" );
-include_once( "CacheManager.php" );
+<?php
-define( "DB_READ", -1 );
-define( "DB_WRITE", -2 );
-define( "DB_LAST", -3 );
+# Backwards compatibility wrapper for Database.php
-$wgLastDatabaseQuery = "";
+# I imagine this file will eventually become a backwards
+# compatibility wrapper around a load balancer object, and
+# the load balancer will finally call Database, which will
+# represent a single connection
-function wfGetDB( $altuser = "", $altpassword = "", $altserver = "", $altdb = "" )
-{
- global $wgDBserver, $wgDBuser, $wgDBpassword;
- global $wgDBname, $wgDBconnection, $wgEmergencyContact;
-
- $noconn = wfMsgNoDB( "noconnect", $wgDBserver );
- $nodb = wfMsgNoDB( "nodb", $wgDBname );
-
- $helpme = "\n<p>If this error persists after reloading and clearing " .
- "your browser cache, please notify the <a href=\"mailto:" .
- $wgEmergencyContact . "\">Wikipedia developers</a>.</p>";
-
- if ( $altuser != "" ) {
- $serve = ($altserver ? $altserver : $wgDBserver );
- $db = ($altdb ? $altdb : $wgDBname );
- $wgDBconnection = mysql_connect( $serve, $altuser, $altpassword )
- or die( "bad sql user" );
- mysql_select_db( $db, $wgDBconnection ) or die(
- htmlspecialchars(mysql_error()) );
- }
+# NB: This file follows a connect on demand scheme. Do
+# not access the $wgDatabase variable directly unless
+# you intend to set it. Use wfGetDB().
- if ( ! $wgDBconnection ) {
- @$wgDBconnection = mysql_pconnect( $wgDBserver, $wgDBuser, $wgDBpassword )
- or wfEmergencyAbort();
-
- if( !mysql_select_db( $wgDBname, $wgDBconnection ) ) {
- /* Persistent connections may become stuck in an unusable state */
- wfDebug( "Persistent connection is broken?\n", true );
-
- @$wgDBconnection = mysql_connect( $wgDBserver, $wgDBuser, $wgDBpassword )
- or wfEmergencyAbort();
-
- @mysql_select_db( $wgDBname, $wgDBconnection )
- or wfEmergencyAbort();
- }
- }
- # mysql_ping( $wgDBconnection );
- return $wgDBconnection;
-}
-
-/* Call this function if we couldn't contact the database...
- We'll try to use the cache to display something in the meantime */
-function wfEmergencyAbort( $msg = "" ) {
- global $wgTitle, $wgUseFileCache, $title, $wgOutputEncoding;
-
- header( "Content-type: text/html; charset=$wgOutputEncoding" );
- if($msg == "") $msg = wfMsgNoDB( "noconnect" );
- $text = $msg;
-
- if($wgUseFileCache) {
- if($wgTitle) {
- $t =& $wgTitle;
- } else {
- if($title) {
- $t = Title::newFromURL( $title );
- } else {
- $t = Title::newFromText( wfMsgNoDB( "mainpage" ) );
- }
- }
-
- $cache = new CacheManager( $t );
- if( $cache->isFileCached() ) {
- $msg = "<p style='color: red'><b>$msg<br>\n" .
- wfMsgNoDB( "cachederror" ) . "</b></p>\n";
-
- $tag = "<div id='article'>";
- $text = str_replace(
- $tag,
- $tag . $msg,
- $cache->fetchPageText() );
- }
- }
-
- /* Don't cache error pages! They cause no end of trouble... */
- header( "Cache-control: none" );
- header( "Pragma: nocache" );
- echo $text;
- exit;
-}
+include_once( "Database.php" );
+# Query the database
# $db: DB_READ = -1 read from slave (or only server)
# DB_WRITE = -2 write to master (or only server)
# 0,1,2,... query a database with a specific index
# Replication is not actually implemented just yet
+# Usually aborts on failure
+# If errors are explicitly ignored, returns success
function wfQuery( $sql, $db, $fname = "" )
{
- global $wgLastDatabaseQuery, $wgOut, $wgDebugDumpSql;
-
- # wfGeneralizeSQL will probably cut down the query to reasonable
- # logging size most of the time. The substr is really just a sanity check.
- $profName = "wfQuery: " . substr( wfGeneralizeSQL( $sql ), 0, 255 );
+ global $wgDatabase, $wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname,
+ $wgDebugDumpSql, $wgBufferSQLResults, $wgIgnoreSQLErrors;
- wfProfileIn( $profName );
-
if ( !is_numeric( $db ) ) {
# Someone has tried to call this the old way
$wgOut->fatalError( wfMsgNoDB( "wrong_wfQuery_params", $db, $sql ) );
}
-
- $wgLastDatabaseQuery = $sql;
-
- if( $wgDebugDumpSql ) {
- $sqlx = substr( $sql, 0, 500 );
- $sqlx = wordwrap(strtr($sqlx,"\t\n"," "));
- wfDebug( "SQL: $sqlx\n" );
- }
- $conn = wfGetDB();
- $ret = mysql_query( $sql, $conn );
+ $db =& wfGetDB();
+ return $db->query( $sql, $fname );
+}
- if ( false === $ret ) {
- $wgOut->databaseError( $fname );
- exit;
+# Connect on demand
+function &wfGetDB()
+{
+ global $wgDatabase, $wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname,
+ $wgDebugDumpSql, $wgBufferSQLResults, $wgIgnoreSQLErrors;
+ if ( !$wgDatabase ) {
+ $wgDatabase = Database::newFromParams( $wgDBserver, $wgDBuser, $wgDBpassword,
+ $wgDBname, false, $wgDebugDumpSql, $wgBufferSQLResults, $wgIgnoreSQLErrors );
}
- wfProfileOut( $profName );
- return $ret;
+ return $wgDatabase;
}
+
+# Turns buffering of SQL result sets on (true) or off (false). Default is
+# "on" and it should not be changed without good reasons.
+# Returns the previous state.
-function wfFreeResult( $res ) { mysql_free_result( $res ); }
-function wfFetchObject( $res ) { return mysql_fetch_object( $res ); }
-function wfNumRows( $res ) { return mysql_num_rows( $res ); }
-function wfNumFields( $res ) { return mysql_num_fields( $res ); }
-function wfFieldName( $res, $n ) { return mysql_field_name( $res, $n ); }
-function wfInsertId() { return mysql_insert_id( wfGetDB() ); }
-function wfDataSeek( $res, $row ) { return mysql_data_seek( $res, $row ); }
-function wfLastErrno() { return mysql_errno(); }
-function wfLastError() { return mysql_error(); }
-function wfAffectedRows() { return mysql_affected_rows( wfGetDB() ); }
-
-function wfLastDBquery()
+function wfBufferSQLResults( $newstate )
{
- global $wgLastDatabaseQuery;
- return $wgLastDatabaseQuery;
+ $db =& wfGetDB();
+ return $db->setBufferResults( $newstate );
}
-function wfSetSQL( $table, $var, $value, $cond )
+# Turns on (false) or off (true) the automatic generation and sending
+# of a "we're sorry, but there has been a database error" page on
+# database errors. Default is on (false). When turned off, the
+# code should use wfLastErrno() and wfLastError() to handle the
+# situation as appropriate.
+# Returns the previous state.
+
+function wfIgnoreSQLErrors( $newstate )
{
- $sql = "UPDATE $table SET $var = '" .
- wfStrencode( $value ) . "' WHERE ($cond)";
- wfQuery( $sql, DB_WRITE, "wfSetSQL" );
+ $db =& wfGetDB();
+ return $db->setIgnoreErrors( $newstate );
}
-function wfGetSQL( $table, $var, $cond )
-{
- $sql = "SELECT $var FROM $table WHERE ($cond)";
- $result = wfQuery( $sql, DB_READ, "wfGetSQL" );
-
- $ret = "";
- if ( mysql_num_rows( $result ) > 0 ) {
- $s = mysql_fetch_object( $result );
- $ret = $s->$var;
- mysql_free_result( $result );
- }
- return $ret;
+function wfFreeResult( $res )
+{
+ $db =& wfGetDB();
+ $db->freeResult( $res );
}
-function wfStrencode( $s )
-{
- return addslashes( $s );
+function wfFetchObject( $res )
+{
+ $db =& wfGetDB();
+ return $db->fetchObject( $res );
}
-# Ideally we'd be using actual time fields in the db
-function wfTimestamp2Unix( $ts ) {
- return gmmktime( ( (int)substr( $ts, 8, 2) ),
- (int)substr( $ts, 10, 2 ), (int)substr( $ts, 12, 2 ),
- (int)substr( $ts, 4, 2 ), (int)substr( $ts, 6, 2 ),
- (int)substr( $ts, 0, 4 ) );
+function wfNumRows( $res )
+{
+ $db =& wfGetDB();
+ return $db->numRows( $res );
}
-function wfUnix2Timestamp( $unixtime ) {
- return gmdate( "YmdHis", $unixtime );
+function wfNumFields( $res )
+{
+ $db =& wfGetDB();
+ return $db->numFields( $res );
}
-function wfTimestampNow() {
- # return NOW
- return gmdate( "YmdHis" );
+function wfFieldName( $res, $n )
+{
+ $db =& wfGetDB();
+ return $db->fieldName( $res, $n );
}
-# Sorting hack for MySQL 3, which doesn't use index sorts for DESC
-function wfInvertTimestamp( $ts ) {
- return strtr(
- $ts,
- "0123456789",
- "9876543210"
- );
+function wfInsertId()
+{
+ $db =& wfGetDB();
+ return $db->insertId();
+}
+function wfDataSeek( $res, $row )
+{
+ $db =& wfGetDB();
+ return $db->dataSeek( $res, $row );
}
-# Removes most variables from an SQL query and replaces them with X or N for numbers.
-# It's only slightly flawed. Don't use for anything important.
-function wfGeneralizeSQL( $sql )
+function wfLastErrno()
+{
+ $db =& wfGetDB();
+ return $db->lastErrno();
+}
+
+function wfLastError()
+{
+ $db =& wfGetDB();
+ return $db->lastError();
+}
+
+function wfAffectedRows()
+{
+ $db =& wfGetDB();
+ return $db->affectedRows();
+}
+
+function wfLastDBquery()
+{
+ $db =& wfGetDB();
+ return $db->lastQuery();
+}
+
+function wfSetSQL( $table, $var, $value, $cond )
+{
+ $db =& wfGetDB();
+ return $db->set( $table, $var, $value, $cond );
+}
+
+function wfGetSQL( $table, $var, $cond )
{
- # This could be done faster with some arrays and a single preg_replace,
- # but this show more clearly what's going on. Which may be a good thing.
- $sql = preg_replace ( "/([\'\"])([^\\\\]|\\\\\\\\)*?\\1/", "\\1X\\1", $sql);
- $sql = preg_replace ( "/-?\d+/" , "N", $sql);
- $sql = preg_replace ( "/\s+/", " ", $sql);
- return $sql;
+ $db =& wfGetDB();
+ return $db->get( $table, $var, $cond );
}
function wfFieldExists( $table, $field )
{
- $fname = "wfFieldExists";
- $res = wfQuery( "DESCRIBE $table", DB_READ, $fname );
- $found = false;
-
- while ( $row = wfFetchObject( $res ) ) {
- if ( $row->Field == $field ) {
- $found = true;
- break;
- }
- }
- return $found;
+ $db =& wfGetDB();
+ return $db->fieldExists( $table, $field );
}
function wfIndexExists( $table, $index )
{
- global $wgDBname;
- $fname = "wfIndexExists";
- $sql = "SHOW INDEXES FROM $table";
- $res = wfQuery( $sql, DB_READ, $fname );
- $found = false;
- while ( $row = wfFetchObject( $res ) ) {
- if ( $row->Key_name == $index ) {
- $found = true;
- break;
- }
- }
- return $found;
+ $db =& wfGetDB();
+ return $db->indexExists( $table, $index );
}
+
+function wfInsertArray( $table, $array )
+{
+ $db =& wfGetDB();
+ return $db->insertArray( $table, $array );
+}
+
+function wfGetArray( $table, $vars, $conds, $fname = "wfGetArray" )
+{
+ $db =& wfGetDB();
+ return $db->getArray( $table, $vars, $conds, $fname );
+}
+
+function wfUpdateArray( $table, $values, $conds, $fname = "wfUpdateArray" )
+{
+ $db =& wfGetDB();
+ $db->updateArray( $table, $values, $conds, $fname );
+}
+
?>
dépôts / lhc / web / wiklou.git / blobdiff