/**
* Usually aborts on failure
+ * @return DatabaseBase|null
*/
function open( $server, $user, $password, $dbName ) {
# Test for Postgres support, to avoid suppressed fatal error
return;
}
- $this->close();
$this->mServer = $server;
$port = $wgDBport;
$this->mUser = $user;
if ( $port != false && $port != '' ) {
$connectVars['port'] = $port;
}
- $connectString = $this->makeConnectionString( $connectVars, PGSQL_CONNECT_FORCE_NEW );
+ $this->connectString = $this->makeConnectionString( $connectVars, PGSQL_CONNECT_FORCE_NEW );
+ $this->reOpen();
+ }
+ function reOpen() {
+ $this->close();
$this->installErrorHandler();
- $this->mConn = pg_connect( $connectString );
+ $this->mConn = pg_connect( $this->connectString );
$phpError = $this->restoreErrorHandler();
if ( !$this->mConn ) {
$this->query( "SET client_encoding='UTF8'", __METHOD__ );
$this->query( "SET datestyle = 'ISO, YMD'", __METHOD__ );
$this->query( "SET timezone = 'GMT'", __METHOD__ );
+ $this->query( "SET standard_conforming_strings = on", __METHOD__ );
global $wgDBmwschema;
if ( $this->schemaExists( $wgDBmwschema ) ) {
/**
* Closes a database connection, if it is open
* Returns success, true if already closed
+ * @return bool
*/
- function close() {
- $this->mOpened = false;
- if ( $this->mConn ) {
- return pg_close( $this->mConn );
- } else {
- return true;
- }
+ protected function closeConnection() {
+ return pg_close( $this->mConn );
}
protected function doQuery( $sql ) {
return $this->mLastResult;
}
+ function reportQueryError( $error, $errno, $sql, $fname, $tempIgnore = false ) {
+ $this->rollback( __METHOD__ );
+ $this->reOpen();
+ parent::reportQueryError( $error, $errno, $sql, $fname, $tempIgnore );
+ }
+
+
function queryIgnore( $sql, $fname = 'DatabasePostgres::queryIgnore' ) {
return $this->query( $sql, $fname, true );
}
/**
* This must be called after nextSequenceVal
+ * @return null
*/
function insertId() {
return $this->mInsertId;
* This is not necessarily an accurate estimate, so use sparingly
* Returns -1 if count cannot be found
* Takes same arguments as Database::select()
+ * @return int
*/
function estimateRowCount( $table, $vars = '*', $conds='', $fname = 'DatabasePostgres::estimateRowCount', $options = array() ) {
$options['EXPLAIN'] = true;
/**
* Returns information about an index
* If errors are explicitly ignored, returns NULL on failure
+ * @return bool|null
*/
function indexInfo( $table, $index, $fname = 'DatabasePostgres::indexInfo' ) {
$sql = "SELECT indexname FROM pg_indexes WHERE tablename='$table'";
$didbegin = 0;
if ( $ignore ) {
if ( !$this->mTrxLevel ) {
- $this->begin();
+ $this->begin( __METHOD__ );
$didbegin = 1;
}
$olde = error_reporting( 0 );
if ( $ignore ) {
$olde = error_reporting( $olde );
if ( $didbegin ) {
- $this->commit();
+ $this->commit( __METHOD__ );
}
// Set the affected row count for the whole operation
* $conds may be "*" to copy the whole table
* srcTable may be an array of tables.
* @todo FIXME: Implement this a little better (seperate select/insert)?
+ * @return bool
*/
function insertSelect( $destTable, $srcTable, $varMap, $conds, $fname = 'DatabasePostgres::insertSelect',
$insertOptions = array(), $selectOptions = array() )
$ignore = in_array( 'IGNORE', $insertOptions ) ? 'mw' : '';
if( is_array( $insertOptions ) ) {
- $insertOptions = implode( ' ', $insertOptions );
+ $insertOptions = implode( ' ', $insertOptions ); // FIXME: This is unused
}
if( !is_array( $selectOptions ) ) {
$selectOptions = array( $selectOptions );
$didbegin = 0;
if ( $ignore ) {
if( !$this->mTrxLevel ) {
- $this->begin();
+ $this->begin( __METHOD__ );
$didbegin = 1;
}
$olde = error_reporting( 0 );
}
$olde = error_reporting( $olde );
if( $didbegin ) {
- $this->commit();
+ $this->commit( __METHOD__ );
}
// Set the affected row count for the whole operation
/**
* Return the next in a sequence, save the value for retrieval via insertId()
+ * @return null
*/
function nextSequenceValue( $seqName ) {
$safeseq = str_replace( "'", "''", $seqName );
/**
* Return the current value of a sequence. Assumes it has been nextval'ed in this session.
+ * @return
*/
function currentSequenceValue( $seqName ) {
$safeseq = str_replace( "'", "''", $seqName );
return $this->query( 'CREATE ' . ( $temporary ? 'TEMPORARY ' : '' ) . " TABLE $newName (LIKE $oldName INCLUDING DEFAULTS)", $fname );
}
+ function listTables( $prefix = null, $fname = 'DatabasePostgres::listTables' ) {
+ global $wgDBmwschema;
+ $eschema = $this->addQuotes( $wgDBmwschema );
+ $result = $this->query( "SELECT tablename FROM pg_tables WHERE schemaname = $eschema", $fname );
+
+ $endArray = array();
+
+ foreach( $result as $table ) {
+ $vars = get_object_vars($table);
+ $table = array_pop( $vars );
+ if( !$prefix || strpos( $table, $prefix ) === 0 ) {
+ $endArray[] = $table;
+ }
+ }
+
+ return $endArray;
+ }
+
function timestamp( $ts = 0 ) {
return wfTimestamp( TS_POSTGRES, $ts );
}
/**
* Query whether a given relation exists (in the given schema, or the
* default mw one if not given)
+ * @return bool
*/
function relationExists( $table, $types, $schema = false ) {
global $wgDBmwschema;
/**
* For backward compatibility, this function checks both tables and
* views.
+ * @return bool
*/
- function tableExists( $table, $schema = false ) {
+ function tableExists( $table, $fname = __METHOD__, $schema = false ) {
return $this->relationExists( $table, array( 'r', 'v' ), $schema );
}
/**
* Query whether a given schema exists. Returns true if it does, false if it doesn't.
+ * @return bool
*/
function schemaExists( $schema ) {
$exists = $this->selectField( '"pg_catalog"."pg_namespace"', 1,
/**
* Returns true if a given role (i.e. user) exists, false otherwise.
+ * @return bool
*/
function roleExists( $roleName ) {
$exists = $this->selectField( '"pg_catalog"."pg_roles"', 1,
/**
* pg_field_type() wrapper
+ * @return string
*/
function fieldType( $res, $index ) {
if ( $res instanceof ResultWrapper ) {
} elseif ( is_bool( $s ) ) {
return intval( $s );
} elseif ( $s instanceof Blob ) {
- $ret = "'" . $s->fetch( $s ) . "'";
- if ( $this->numeric_version >= 8.1 ) {
- $ret = "E$ret";
- }
- return $ret;
+ return "'" . $s->fetch( $s ) . "'";
}
return "'" . pg_escape_string( $this->mConn, $s ) . "'";
}
public function getSearchEngine() {
return 'SearchPostgres';
}
+
+ public function streamStatementEnd( &$sql, &$newLine ) {
+ # Allow dollar quoting for function declarations
+ if ( substr( $newLine, 0, 4 ) == '$mw$' ) {
+ if ( $this->delimiter ) {
+ $this->delimiter = false;
+ }
+ else {
+ $this->delimiter = ';';
+ }
+ }
+ return parent::streamStatementEnd( $sql, $newLine );
+ }
} // end DatabasePostgres class