wiki.techinc.nl/includes/DatabaseFunctions.php
2004-03-23 10:17:50 +00:00

179 lines
3.9 KiB
PHP

<?php
# Backwards compatibility wrapper for Database.php
# 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
# NB: This file follows a connect on demand scheme. Do
# not access the $wgDatabase variable directly unless
# you intend to set it. Use wfGetDB().
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 $wgDatabase, $wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname,
$wgDebugDumpSql, $wgBufferSQLResults, $wgIgnoreSQLErrors;
if ( !is_numeric( $db ) ) {
# Someone has tried to call this the old way
$wgOut->fatalError( wfMsgNoDB( "wrong_wfQuery_params", $db, $sql ) );
}
$db =& wfGetDB();
return $db->query( $sql, $fname );
}
# 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 );
}
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 wfBufferSQLResults( $newstate )
{
$db =& wfGetDB();
return $db->setBufferResults( $newstate );
}
# 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 )
{
$db =& wfGetDB();
return $db->setIgnoreErrors( $newstate );
}
function wfFreeResult( $res )
{
$db =& wfGetDB();
$db->freeResult( $res );
}
function wfFetchObject( $res )
{
$db =& wfGetDB();
return $db->fetchObject( $res );
}
function wfNumRows( $res )
{
$db =& wfGetDB();
return $db->numRows( $res );
}
function wfNumFields( $res )
{
$db =& wfGetDB();
return $db->numFields( $res );
}
function wfFieldName( $res, $n )
{
$db =& wfGetDB();
return $db->fieldName( $res, $n );
}
function wfInsertId()
{
$db =& wfGetDB();
return $db->insertId();
}
function wfDataSeek( $res, $row )
{
$db =& wfGetDB();
return $db->dataSeek( $res, $row );
}
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 )
{
$db =& wfGetDB();
return $db->get( $table, $var, $cond );
}
function wfFieldExists( $table, $field )
{
$db =& wfGetDB();
return $db->fieldExists( $table, $field );
}
function wfIndexExists( $table, $index )
{
$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 );
}
?>