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<?php
/**
* Legacy database functions, for compatibility with pre-1.3 code
* NOTE: this file is no longer loaded by default.
* @file
* @ingroup Database
*/
/**
* Usually aborts on failure
* If errors are explicitly ignored, returns success
* @param $sql String: SQL query
* @param $db Mixed: database handler
* @param $fname String: name of the php function calling
*/
function wfQuery( $sql, $db, $fname = '' ) {
if ( !is_numeric( $db ) ) {
# Someone has tried to call this the old way
throw new FatalError( wfMsgNoDB( 'wrong_wfQuery_params', $db, $sql ) );
}
$c = wfGetDB( $db );
if ( $c !== false ) {
return $c->query( $sql, $fname );
} else {
return false;
}
}
/**
*
* @param $sql String: SQL query
* @param $dbi
* @param $fname String: name of the php function calling
* @return Array: first row from the database
*/
function wfSingleQuery( $sql, $dbi, $fname = '' ) {
$db = wfGetDB( $dbi );
$res = $db->query($sql, $fname );
$row = $db->fetchRow( $res );
$ret = $row[0];
$db->freeResult( $res );
return $ret;
}
/**
* 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.
*
* @param $newstate
* @param $dbi
* @return Returns the previous state.
*/
function wfIgnoreSQLErrors( $newstate, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->ignoreErrors( $newstate );
} else {
return null;
}
}
/**#@+
* @param $res Database result handler
* @param $dbi
*/
/**
* Free a database result
* @return Bool: whether result is sucessful or not.
*/
function wfFreeResult( $res, $dbi = DB_LAST )
{
$db = wfGetDB( $dbi );
if ( $db !== false ) {
$db->freeResult( $res );
return true;
} else {
return false;
}
}
/**
* Get an object from a database result
* @return object|false object we requested
*/
function wfFetchObject( $res, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->fetchObject( $res, $dbi = DB_LAST );
} else {
return false;
}
}
/**
* Get a row from a database result
* @return object|false row we requested
*/
function wfFetchRow( $res, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->fetchRow ( $res, $dbi = DB_LAST );
} else {
return false;
}
}
/**
* Get a number of rows from a database result
* @return integer|false number of rows
*/
function wfNumRows( $res, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->numRows( $res, $dbi = DB_LAST );
} else {
return false;
}
}
/**
* Get the number of fields from a database result
* @return integer|false number of fields
*/
function wfNumFields( $res, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->numFields( $res );
} else {
return false;
}
}
/**
* Return name of a field in a result
* @param $res Mixed: Ressource link see Database::fieldName()
* @param $n Integer: id of the field
* @param $dbi Default DB_LAST
* @return string|false name of field
*/
function wfFieldName( $res, $n, $dbi = DB_LAST )
{
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->fieldName( $res, $n, $dbi = DB_LAST );
} else {
return false;
}
}
/**#@-*/
/**
* @todo document function
* @see Database::insertId()
*/
function wfInsertId( $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->insertId();
} else {
return false;
}
}
/**
* @todo document function
* @see Database::dataSeek()
*/
function wfDataSeek( $res, $row, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->dataSeek( $res, $row );
} else {
return false;
}
}
/**
* Get the last error number
* @see Database::lastErrno()
*/
function wfLastErrno( $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->lastErrno();
} else {
return false;
}
}
/**
* Get the last error
* @see Database::lastError()
*/
function wfLastError( $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->lastError();
} else {
return false;
}
}
/**
* Get the number of affected rows
* @see Database::affectedRows()
*/
function wfAffectedRows( $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->affectedRows();
} else {
return false;
}
}
/**
* Get the last query ran
* @see Database::lastQuery
*/
function wfLastDBquery( $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->lastQuery();
} else {
return false;
}
}
/**
* @see Database::Set()
* @todo document function
* @param $table
* @param $var
* @param $value
* @param $cond
* @param $dbi Default DB_MASTER
*/
function wfSetSQL( $table, $var, $value, $cond, $dbi = DB_MASTER )
{
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->set( $table, $var, $value, $cond );
} else {
return false;
}
}
/**
* Simple select wrapper, return one field
* @see Database::selectField()
* @param $table
* @param $var
* @param $cond Default ''
* @param $dbi Default DB_LAST
*/
function wfGetSQL( $table, $var, $cond='', $dbi = DB_LAST )
{
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->selectField( $table, $var, $cond );
} else {
return false;
}
}
/**
* Does a given field exist on the specified table?
* @see Database::fieldExists()
* @param $table
* @param $field
* @param $dbi Default DB_LAST
* @return Result of Database::fieldExists() or false.
*/
function wfFieldExists( $table, $field, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->fieldExists( $table, $field );
} else {
return false;
}
}
/**
* Does the requested index exist on the specified table?
* @see Database::indexExists()
* @param $table String
* @param $index
* @param $dbi Default DB_LAST
* @return Result of Database::indexExists() or false.
*/
function wfIndexExists( $table, $index, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->indexExists( $table, $index );
} else {
return false;
}
}
/**
* @see Database::insert()
* @todo document function
* @param $table String
* @param $array Array
* @param $fname String, default 'wfInsertArray'.
* @param $dbi Default DB_MASTER
* @return result of Database::insert() or false.
*/
function wfInsertArray( $table, $array, $fname = 'wfInsertArray', $dbi = DB_MASTER ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->insert( $table, $array, $fname );
} else {
return false;
}
}
/**
* @see Database::getArray()
* @todo document function
* @param $table String
* @param $vars
* @param $conds
* @param $fname String, default 'wfGetArray'.
* @param $dbi Default DB_LAST
* @return result of Database::getArray() or false.
*/
function wfGetArray( $table, $vars, $conds, $fname = 'wfGetArray', $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->getArray( $table, $vars, $conds, $fname );
} else {
return false;
}
}
/**
* @see Database::update()
* @param $table String
* @param $values
* @param $conds
* @param $fname String, default 'wfUpdateArray'
* @param $dbi Default DB_MASTER
* @return Result of Database::update()) or false;
* @todo document function
*/
function wfUpdateArray( $table, $values, $conds, $fname = 'wfUpdateArray', $dbi = DB_MASTER ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
$db->update( $table, $values, $conds, $fname );
return true;
} else {
return false;
}
}
/**
* Get fully usable table name
* @see Database::tableName()
*/
function wfTableName( $name, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->tableName( $name );
} else {
return false;
}
}
/**
* @todo document function
* @see Database::strencode()
*/
function wfStrencode( $s, $dbi = DB_LAST ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->strencode( $s );
} else {
return false;
}
}
/**
* @todo document function
* @see Database::nextSequenceValue()
*/
function wfNextSequenceValue( $seqName, $dbi = DB_MASTER ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->nextSequenceValue( $seqName );
} else {
return false;
}
}
/**
* @todo document function
* @see Database::useIndexClause()
*/
function wfUseIndexClause( $index, $dbi = DB_SLAVE ) {
$db = wfGetDB( $dbi );
if ( $db !== false ) {
return $db->useIndexClause( $index );
} else {
return false;
}
}