mOut =& $wgOut; $this->mFailFunction = $failFunction; $this->mCascadingDeletes = true; $this->mCleanupTriggers = true; $this->mStrictIPs = true; $this->mFlags = $flags; $this->open( $server, $user, $password, $dbName); } function realTimestamps() { return true; } function implicitGroupby() { return false; } static function newFromParams( $server = false, $user = false, $password = false, $dbName = false, $failFunction = false, $flags = 0) { return new DatabasePostgres( $server, $user, $password, $dbName, $failFunction, $flags ); } /** * Usually aborts on failure * If the failFunction is set to a non-zero integer, returns success */ function open( $server, $user, $password, $dbName ) { # Test for Postgres support, to avoid suppressed fatal error if ( !function_exists( 'pg_connect' ) ) { throw new DBConnectionError( $this, "Postgres functions missing, have you compiled PHP with the --with-pgsql option?\n (Note: if you recently installed PHP, you may need to restart your webserver and database)\n" ); } global $wgDBport; $this->close(); $this->mServer = $server; $port = $wgDBport; $this->mUser = $user; $this->mPassword = $password; $this->mDBname = $dbName; $hstring=""; if ($server!=false && $server!="") { $hstring="host=$server "; } if ($port!=false && $port!="") { $hstring .= "port=$port "; } if (!strlen($user)) { ## e.g. the class is being loaded return; } error_reporting( E_ALL ); @$this->mConn = pg_connect("$hstring dbname=$dbName user=$user password=$password"); if ( $this->mConn == false ) { wfDebug( "DB connection error\n" ); wfDebug( "Server: $server, Database: $dbName, User: $user, Password: " . substr( $password, 0, 3 ) . "...\n" ); wfDebug( $this->lastError()."\n" ); return false; } $this->mOpened = true; ## If this is the initial connection, setup the schema stuff and possibly create the user if (defined('MEDIAWIKI_INSTALL')) { global $wgDBname, $wgDBuser, $wgDBpassword, $wgDBsuperuser, $wgDBmwschema, $wgDBts2schema; print "OK\n"; print "
  • Checking the version of Postgres..."; $version = pg_fetch_result($this->doQuery("SELECT version()"),0,0); $thisver = array(); if (!preg_match('/PostgreSQL (\d+\.\d+)(\S+)/', $version, $thisver)) { print "FAILED (could not determine the version)
  • \n"; dieout(""); } $PGMINVER = "8.1"; if ($thisver[1] < $PGMINVER) { print "FAILED. Required version is $PGMINVER. You have $thisver[1]$thisver[2]\n"; dieout(""); } print "version $thisver[1]$thisver[2] is OK.\n"; $safeuser = $this->quote_ident($wgDBuser); ## Are we connecting as a superuser for the first time? if ($wgDBsuperuser) { ## Are we really a superuser? Check out our rights $SQL = "SELECT CASE WHEN usesuper IS TRUE THEN CASE WHEN usecreatedb IS TRUE THEN 3 ELSE 1 END ELSE CASE WHEN usecreatedb IS TRUE THEN 2 ELSE 0 END END AS rights FROM pg_catalog.pg_user WHERE usename = " . $this->addQuotes($wgDBsuperuser); $rows = $this->numRows($res = $this->doQuery($SQL)); if (!$rows) { print "
  • ERROR: Could not read permissions for user \"$wgDBsuperuser\"
  • \n"; dieout(''); } $perms = pg_fetch_result($res, 0, 0); $SQL = "SELECT 1 FROM pg_catalog.pg_user WHERE usename = " . $this->addQuotes($wgDBuser); $rows = $this->numRows($this->doQuery($SQL)); if ($rows) { print "
  • User \"$wgDBuser\" already exists, skipping account creation.
  • "; } else { if ($perms != 1 and $perms != 3) { print "
  • ERROR: the user \"$wgDBsuperuser\" cannot create other users. "; print 'Please use a different Postgres user.
  • '; dieout(''); } print "
  • Creating user $wgDBuser..."; $safepass = $this->addQuotes($wgDBpassword); $SQL = "CREATE USER $safeuser NOCREATEDB PASSWORD $safepass"; $this->doQuery($SQL); print "OK
  • \n"; } ## User now exists, check out the database if ($dbName != $wgDBname) { $SQL = "SELECT 1 FROM pg_catalog.pg_database WHERE datname = " . $this->addQuotes($wgDBname); $rows = $this->numRows($this->doQuery($SQL)); if ($rows) { print "
  • Database \"$wgDBname\" already exists, skipping database creation.
  • "; } else { if ($perms < 2) { print "
  • ERROR: the user \"$wgDBsuperuser\" cannot create databases. "; print 'Please use a different Postgres user.
  • '; dieout(''); } print "
  • Creating database $wgDBname..."; $safename = $this->quote_ident($wgDBname); $SQL = "CREATE DATABASE $safename OWNER $safeuser "; $this->doQuery($SQL); print "OK
  • \n"; ## Hopefully tsearch2 and plpgsql are in template1... } ## Reconnect to check out tsearch2 rights for this user print "
  • Connecting to \"$wgDBname\" as superuser \"$wgDBsuperuser\" to check rights..."; @$this->mConn = pg_connect("$hstring dbname=$wgDBname user=$user password=$password"); if ( $this->mConn == false ) { print "FAILED TO CONNECT!
  • "; dieout(""); } print "OK\n"; } ## Tsearch2 checks print "
  • Checking that tsearch2 is installed in the database \"$wgDBname\"..."; if (! $this->tableExists("pg_ts_cfg", $wgDBts2schema)) { print "FAILED. tsearch2 must be installed in the database \"$wgDBname\"."; print "Please see this article"; print " for instructions or ask on #postgresql on irc.freenode.net
  • \n"; dieout(""); } print "OK\n"; print "
  • Ensuring that user \"$wgDBuser\" has select rights on the tsearch2 tables..."; foreach (array('cfg','cfgmap','dict','parser') as $table) { $SQL = "GRANT SELECT ON pg_ts_$table TO $safeuser"; $this->doQuery($SQL); } print "OK
  • \n"; ## Setup the schema for this user if needed $result = $this->schemaExists($wgDBmwschema); $safeschema = $this->quote_ident($wgDBmwschema); if (!$result) { print "
  • Creating schema $wgDBmwschema ..."; $result = $this->doQuery("CREATE SCHEMA $safeschema AUTHORIZATION $safeuser"); if (!$result) { print "FAILED.
  • \n"; dieout(""); } print "OK\n"; } else { print "
  • Schema already exists, explicitly granting rights...\n"; $safeschema2 = $this->addQuotes($wgDBmwschema); $SQL = "SELECT 'GRANT ALL ON '||pg_catalog.quote_ident(relname)||' TO $safeuser;'\n". "FROM pg_catalog.pg_class p, pg_catalog.pg_namespace n\n". "WHERE relnamespace = n.oid AND n.nspname = $safeschema2\n". "AND p.relkind IN ('r','S','v')\n"; $SQL .= "UNION\n"; $SQL .= "SELECT 'GRANT ALL ON FUNCTION '||pg_catalog.quote_ident(proname)||'('||\n". "pg_catalog.oidvectortypes(p.proargtypes)||') TO $safeuser;'\n". "FROM pg_catalog.pg_proc p, pg_catalog.pg_namespace n\n". "WHERE p.pronamespace = n.oid AND n.nspname = $safeschema2"; $res = $this->doQuery($SQL); if (!$res) { print "FAILED. Could not set rights for the user.
  • \n"; dieout(""); } $this->doQuery("SET search_path = $safeschema"); $rows = $this->numRows($res); while ($rows) { $rows--; $this->doQuery(pg_fetch_result($res, $rows, 0)); } print "OK"; } $wgDBsuperuser = ''; return true; ## Reconnect as regular user } if (!defined('POSTGRES_SEARCHPATH')) { ## Do we have the basic tsearch2 table? print "
  • Checking for tsearch2 in the schema \"$wgDBts2schema\"..."; if (! $this->tableExists("pg_ts_dict", $wgDBts2schema)) { print "FAILED. Make sure tsearch2 is installed. See this article"; print " for instructions.
  • \n"; dieout(""); } print "OK\n"; ## Does this user have the rights to the tsearch2 tables? $ctype = pg_fetch_result($this->doQuery("SHOW lc_ctype"),0,0); print "
  • Checking tsearch2 permissions..."; $SQL = "SELECT ts_name FROM $wgDBts2schema.pg_ts_cfg WHERE locale = '$ctype'"; $SQL .= " ORDER BY CASE WHEN ts_name <> 'default' THEN 1 ELSE 0 END"; error_reporting( 0 ); $res = $this->doQuery($SQL); error_reporting( E_ALL ); if (!$res) { print "FAILED. Make sure that the user \"$wgDBuser\" has SELECT access to the tsearch2 tables
  • \n"; dieout(""); } print "OK"; ## Will the current locale work? Can we force it to? print "
  • Verifying tsearch2 locale with $ctype..."; $rows = $this->numRows($res); $resetlocale = 0; if (!$rows) { print "not found
  • \n"; print "
  • Attempting to set default tsearch2 locale to \"$ctype\"..."; $resetlocale = 1; } else { $tsname = pg_fetch_result($res, 0, 0); if ($tsname != 'default') { print "not set to default ($tsname)"; print "
  • Attempting to change tsearch2 default locale to \"$ctype\"..."; $resetlocale = 1; } } if ($resetlocale) { $SQL = "UPDATE $wgDBts2schema.pg_ts_cfg SET locale = '$ctype' WHERE ts_name = 'default'"; $res = $this->doQuery($SQL); if (!$res) { print "FAILED. "; print "Please make sure that the locale in pg_ts_cfg for \"default\" is set to \"ctype\"
  • \n"; dieout(""); } print "OK"; } ## Final test: try out a simple tsearch2 query $SQL = "SELECT $wgDBts2schema.to_tsvector('default','MediaWiki tsearch2 testing')"; $res = $this->doQuery($SQL); if (!$res) { print "FAILED. Specifically, \"$SQL\" did not work."; dieout(""); } print "OK"; ## Do we have plpgsql installed? print "
  • Checking for Pl/Pgsql ..."; $SQL = "SELECT 1 FROM pg_catalog.pg_language WHERE lanname = 'plpgsql'"; $rows = $this->numRows($this->doQuery($SQL)); if ($rows < 1) { // plpgsql is not installed, but if we have a pg_pltemplate table, we should be able to create it print "not installed. Attempting to install Pl/Pgsql ..."; $SQL = "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON (n.oid = c.relnamespace) ". "WHERE relname = 'pg_pltemplate' AND nspname='pg_catalog'"; $rows = $this->numRows($this->doQuery($SQL)); if ($rows >= 1) { $result = $this->doQuery("CREATE LANGUAGE plpgsql"); if (!$result) { print "FAILED. You need to install the language plpgsql in the database $wgDBname
  • "; dieout(""); } } else { print "FAILED. You need to install the language plpgsql in the database $wgDBname"; dieout(""); } } print "OK\n"; ## Does the schema already exist? Who owns it? $result = $this->schemaExists($wgDBmwschema); if (!$result) { print "
  • Creating schema $wgDBmwschema ..."; $result = $this->doQuery("CREATE SCHEMA $wgDBmwschema"); if (!$result) { print "FAILED.
  • \n"; dieout(""); } print "OK\n"; } else if ($result != $user) { print "
  • Schema \"$wgDBmwschema\" exists but is not owned by \"$user\". Not ideal.
  • \n"; } else { print "
  • Schema \"$wgDBmwschema\" exists and is owned by \"$user\". Excellent.
  • \n"; } ## Fix up the search paths if needed print "
  • Setting the search path for user \"$user\" ..."; $path = $this->quote_ident($wgDBmwschema); if ($wgDBts2schema !== $wgDBmwschema) $path .= ", ". $this->quote_ident($wgDBts2schema); if ($wgDBmwschema !== 'public' and $wgDBts2schema !== 'public') $path .= ", public"; $SQL = "ALTER USER $safeuser SET search_path = $path"; $result = pg_query($this->mConn, $SQL); if (!$result) { print "FAILED.
  • \n"; dieout(""); } print "OK\n"; ## Set for the rest of this session $SQL = "SET search_path = $path"; $result = pg_query($this->mConn, $SQL); if (!$result) { print "
  • Failed to set search_path
  • \n"; dieout(""); } define( "POSTGRES_SEARCHPATH", $path ); }} global $wgCommandLineMode; ## If called from the command-line (e.g. importDump), only show errors if ($wgCommandLineMode) { $this->doQuery("SET client_min_messages = 'ERROR'"); } return $this->mConn; } /** * Closes a database connection, if it is open * Returns success, true if already closed */ function close() { $this->mOpened = false; if ( $this->mConn ) { return pg_close( $this->mConn ); } else { return true; } } function doQuery( $sql ) { return $this->mLastResult=pg_query( $this->mConn , $sql); } function queryIgnore( $sql, $fname = '' ) { return $this->query( $sql, $fname, true ); } function freeResult( $res ) { if ( !@pg_free_result( $res ) ) { throw new DBUnexpectedError($this, "Unable to free Postgres result\n" ); } } function fetchObject( $res ) { @$row = pg_fetch_object( $res ); # FIXME: HACK HACK HACK HACK debug # TODO: # hashar : not sure if the following test really trigger if the object # fetching failled. if( pg_last_error($this->mConn) ) { throw new DBUnexpectedError($this, 'SQL error: ' . htmlspecialchars( pg_last_error($this->mConn) ) ); } return $row; } function fetchRow( $res ) { @$row = pg_fetch_array( $res ); if( pg_last_error($this->mConn) ) { throw new DBUnexpectedError($this, 'SQL error: ' . htmlspecialchars( pg_last_error($this->mConn) ) ); } return $row; } function numRows( $res ) { @$n = pg_num_rows( $res ); if( pg_last_error($this->mConn) ) { throw new DBUnexpectedError($this, 'SQL error: ' . htmlspecialchars( pg_last_error($this->mConn) ) ); } return $n; } function numFields( $res ) { return pg_num_fields( $res ); } function fieldName( $res, $n ) { return pg_field_name( $res, $n ); } /** * This must be called after nextSequenceVal */ function insertId() { return $this->mInsertId; } function dataSeek( $res, $row ) { return pg_result_seek( $res, $row ); } function lastError() { if ( $this->mConn ) { return pg_last_error(); } else { return "No database connection"; } } function lastErrno() { return pg_last_error() ? 1 : 0; } function affectedRows() { return pg_affected_rows( $this->mLastResult ); } /** * Returns information about an index * If errors are explicitly ignored, returns NULL on failure */ function indexInfo( $table, $index, $fname = 'Database::indexExists' ) { $sql = "SELECT indexname FROM pg_indexes WHERE tablename='$table'"; $res = $this->query( $sql, $fname ); if ( !$res ) { return NULL; } while ( $row = $this->fetchObject( $res ) ) { if ( $row->indexname == $index ) { return $row; // BUG: !!!! This code needs to be synced up with database.php } } return false; } function indexUnique ($table, $index, $fname = 'Database::indexUnique' ) { $sql = "SELECT indexname FROM pg_indexes WHERE tablename='{$table}'". " AND indexdef LIKE 'CREATE UNIQUE%({$index})'"; $res = $this->query( $sql, $fname ); if ( !$res ) return NULL; while ($row = $this->fetchObject( $res )) return true; return false; } function insert( $table, $a, $fname = 'Database::insert', $options = array() ) { # Postgres doesn't support options # We have a go at faking one of them # TODO: DELAYED, LOW_PRIORITY if ( !is_array($options)) $options = array($options); if ( in_array( 'IGNORE', $options ) ) $oldIgnore = $this->ignoreErrors( true ); # IGNORE is performed using single-row inserts, ignoring errors in each # FIXME: need some way to distiguish between key collision and other types of error $oldIgnore = $this->ignoreErrors( true ); if ( !is_array( reset( $a ) ) ) { $a = array( $a ); } foreach ( $a as $row ) { parent::insert( $table, $row, $fname, array() ); } $this->ignoreErrors( $oldIgnore ); $retVal = true; if ( in_array( 'IGNORE', $options ) ) $this->ignoreErrors( $oldIgnore ); return $retVal; } function tableName( $name ) { # Replace reserved words with better ones switch( $name ) { case 'user': return 'mwuser'; case 'text': return 'pagecontent'; default: return $name; } } /** * Return the next in a sequence, save the value for retrieval via insertId() */ function nextSequenceValue( $seqName ) { $safeseq = preg_replace( "/'/", "''", $seqName ); $res = $this->query( "SELECT nextval('$safeseq')" ); $row = $this->fetchRow( $res ); $this->mInsertId = $row[0]; $this->freeResult( $res ); return $this->mInsertId; } /** * Postgres does not have a "USE INDEX" clause, so return an empty string */ function useIndexClause( $index ) { return ''; } # REPLACE query wrapper # Postgres simulates this with a DELETE followed by INSERT # $row is the row to insert, an associative array # $uniqueIndexes is an array of indexes. Each element may be either a # field name or an array of field names # # It may be more efficient to leave off unique indexes which are unlikely to collide. # However if you do this, you run the risk of encountering errors which wouldn't have # occurred in MySQL function replace( $table, $uniqueIndexes, $rows, $fname = 'Database::replace' ) { $table = $this->tableName( $table ); if (count($rows)==0) { return; } # Single row case if ( !is_array( reset( $rows ) ) ) { $rows = array( $rows ); } foreach( $rows as $row ) { # Delete rows which collide if ( $uniqueIndexes ) { $sql = "DELETE FROM $table WHERE "; $first = true; foreach ( $uniqueIndexes as $index ) { if ( $first ) { $first = false; $sql .= "("; } else { $sql .= ') OR ('; } if ( is_array( $index ) ) { $first2 = true; foreach ( $index as $col ) { if ( $first2 ) { $first2 = false; } else { $sql .= ' AND '; } $sql .= $col.'=' . $this->addQuotes( $row[$col] ); } } else { $sql .= $index.'=' . $this->addQuotes( $row[$index] ); } } $sql .= ')'; $this->query( $sql, $fname ); } # Now insert the row $sql = "INSERT INTO $table (" . $this->makeList( array_keys( $row ), LIST_NAMES ) .') VALUES (' . $this->makeList( $row, LIST_COMMA ) . ')'; $this->query( $sql, $fname ); } } # DELETE where the condition is a join function deleteJoin( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname = "Database::deleteJoin" ) { if ( !$conds ) { throw new DBUnexpectedError($this, 'Database::deleteJoin() called with empty $conds' ); } $delTable = $this->tableName( $delTable ); $joinTable = $this->tableName( $joinTable ); $sql = "DELETE FROM $delTable WHERE $delVar IN (SELECT $joinVar FROM $joinTable "; if ( $conds != '*' ) { $sql .= 'WHERE ' . $this->makeList( $conds, LIST_AND ); } $sql .= ')'; $this->query( $sql, $fname ); } # Returns the size of a text field, or -1 for "unlimited" function textFieldSize( $table, $field ) { $table = $this->tableName( $table ); $sql = "SELECT t.typname as ftype,a.atttypmod as size FROM pg_class c, pg_attribute a, pg_type t WHERE relname='$table' AND a.attrelid=c.oid AND a.atttypid=t.oid and a.attname='$field'"; $res =$this->query($sql); $row=$this->fetchObject($res); if ($row->ftype=="varchar") { $size=$row->size-4; } else { $size=$row->size; } $this->freeResult( $res ); return $size; } function lowPriorityOption() { return ''; } function limitResult($sql, $limit,$offset) { return "$sql LIMIT $limit ".(is_numeric($offset)?" OFFSET {$offset} ":""); } /** * Returns an SQL expression for a simple conditional. * Uses CASE on Postgres * * @param string $cond SQL expression which will result in a boolean value * @param string $trueVal SQL expression to return if true * @param string $falseVal SQL expression to return if false * @return string SQL fragment */ function conditional( $cond, $trueVal, $falseVal ) { return " (CASE WHEN $cond THEN $trueVal ELSE $falseVal END) "; } function wasDeadlock() { return $this->lastErrno() == '40P01'; } function timestamp( $ts=0 ) { return wfTimestamp(TS_POSTGRES,$ts); } /** * Return aggregated value function call */ function aggregateValue ($valuedata,$valuename='value') { return $valuedata; } function reportQueryError( $error, $errno, $sql, $fname, $tempIgnore = false ) { # Ignore errors during error handling to avoid infinite recursion $ignore = $this->ignoreErrors( true ); ++$this->mErrorCount; if ($ignore || $tempIgnore) { wfDebug("SQL ERROR (ignored): $error\n"); $this->ignoreErrors( $ignore ); } else { $message = "A database error has occurred\n" . "Query: $sql\n" . "Function: $fname\n" . "Error: $errno $error\n"; throw new DBUnexpectedError($this, $message); } } /** * @return string wikitext of a link to the server software's web site */ function getSoftwareLink() { return "[http://www.postgresql.org/ PostgreSQL]"; } /** * @return string Version information from the database */ function getServerVersion() { $res = $this->query( "SELECT version()" ); $row = $this->fetchRow( $res ); $version = $row[0]; $this->freeResult( $res ); return $version; } /** * Query whether a given table exists (in the given schema, or the default mw one if not given) */ function tableExists( $table, $schema = false ) { global $wgDBmwschema; if (! $schema ) $schema = $wgDBmwschema; $etable = preg_replace("/'/", "''", $table); $eschema = preg_replace("/'/", "''", $schema); $SQL = "SELECT 1 FROM pg_catalog.pg_class c, pg_catalog.pg_namespace n " . "WHERE c.relnamespace = n.oid AND c.relname = '$etable' AND n.nspname = '$eschema' " . "AND c.relkind IN ('r','v')"; $res = $this->query( $SQL ); $count = $res ? pg_num_rows($res) : 0; if ($res) $this->freeResult( $res ); return $count; } /** * Query whether a given schema exists. Returns the name of the owner */ function schemaExists( $schema ) { $eschema = preg_replace("/'/", "''", $schema); $SQL = "SELECT rolname FROM pg_catalog.pg_namespace n, pg_catalog.pg_roles r " ."WHERE n.nspowner=r.oid AND n.nspname = '$eschema'"; $res = $this->query( $SQL ); $owner = $res ? pg_num_rows($res) ? pg_fetch_result($res, 0, 0) : false : false; if ($res) $this->freeResult($res); return $owner; } /** * Query whether a given column exists in the mediawiki schema */ function fieldExists( $table, $field ) { global $wgDBmwschema; $etable = preg_replace("/'/", "''", $table); $eschema = preg_replace("/'/", "''", $wgDBmwschema); $ecol = preg_replace("/'/", "''", $field); $SQL = "SELECT 1 FROM pg_catalog.pg_class c, pg_catalog.pg_namespace n, pg_catalog.pg_attribute a " . "WHERE c.relnamespace = n.oid AND c.relname = '$etable' AND n.nspname = '$eschema' " . "AND a.attrelid = c.oid AND a.attname = '$ecol'"; $res = $this->query( $SQL ); $count = $res ? pg_num_rows($res) : 0; if ($res) $this->freeResult( $res ); return $count; } function fieldInfo( $table, $field ) { $res = $this->query( "SELECT $field FROM $table LIMIT 1" ); $type = pg_field_type( $res, 0 ); return $type; } function begin( $fname = 'DatabasePostgrs::begin' ) { $this->query( 'BEGIN', $fname ); $this->mTrxLevel = 1; } function immediateCommit( $fname = 'DatabasePostgres::immediateCommit' ) { return true; } function commit( $fname = 'DatabasePostgres::commit' ) { $this->query( 'COMMIT', $fname ); $this->mTrxLevel = 0; } /* Not even sure why this is used in the main codebase... */ function limitResultForUpdate($sql, $num) { return $sql; } function setup_database() { global $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgDBport; dbsource( "../maintenance/postgres/tables.sql", $this); ## Update version information $mwv = $this->addQuotes($wgVersion); $pgv = $this->addQuotes($this->getServerVersion()); $pgu = $this->addQuotes($this->mUser); $mws = $this->addQuotes($wgDBmwschema); $tss = $this->addQuotes($wgDBts2schema); $pgp = $this->addQuotes($wgDBport); $dbn = $this->addQuotes($this->mDBname); $ctype = pg_fetch_result($this->doQuery("SHOW lc_ctype"),0,0); $SQL = "UPDATE mediawiki_version SET mw_version=$mwv, pg_version=$pgv, pg_user=$pgu, ". "mw_schema = $mws, ts2_schema = $tss, pg_port=$pgp, pg_dbname=$dbn, ". "ctype = '$ctype' ". "WHERE type = 'Creation'"; $this->query($SQL); ## Avoid the non-standard "REPLACE INTO" syntax $f = fopen( "../maintenance/interwiki.sql", 'r' ); if ($f == false ) { dieout( "
  • Could not find the interwiki.sql file"); } ## We simply assume it is already empty as we have just created it $SQL = "INSERT INTO interwiki(iw_prefix,iw_url,iw_local) VALUES "; while ( ! feof( $f ) ) { $line = fgets($f,1024); $matches = array(); if (!preg_match('/^\s*(\(.+?),(\d)\)/', $line, $matches)) { continue; } $this->query("$SQL $matches[1],$matches[2])"); } print " (table interwiki successfully populated)...\n"; } function encodeBlob($b) { return array('bytea',pg_escape_bytea($b)); } function decodeBlob($b) { return pg_unescape_bytea( $b ); } function strencode( $s ) { ## Should not be called by us return pg_escape_string( $s ); } function addQuotes( $s ) { if ( is_null( $s ) ) { return 'NULL'; } else if (is_array( $s )) { ## Assume it is bytea data return "E'$s[1]'"; } return "'" . pg_escape_string($s) . "'"; // Unreachable: return "E'" . pg_escape_string($s) . "'"; } function quote_ident( $s ) { return '"' . preg_replace( '/"/', '""', $s) . '"'; } /* For now, does nothing */ function selectDB( $db ) { return true; } /** * Returns an optional USE INDEX clause to go after the table, and a * string to go at the end of the query * * @private * * @param array $options an associative array of options to be turned into * an SQL query, valid keys are listed in the function. * @return array */ function makeSelectOptions( $options ) { $tailOpts = ''; $startOpts = ''; $noKeyOptions = array(); foreach ( $options as $key => $option ) { if ( is_numeric( $key ) ) { $noKeyOptions[$option] = true; } } if ( isset( $options['GROUP BY'] ) ) $tailOpts .= " GROUP BY {$options['GROUP BY']}"; if ( isset( $options['ORDER BY'] ) ) $tailOpts .= " ORDER BY {$options['ORDER BY']}"; if (isset($options['LIMIT'])) { $tailOpts .= $this->limitResult('', $options['LIMIT'], isset($options['OFFSET']) ? $options['OFFSET'] : false); } if ( isset( $noKeyOptions['FOR UPDATE'] ) ) $tailOpts .= ' FOR UPDATE'; if ( isset( $noKeyOptions['LOCK IN SHARE MODE'] ) ) $tailOpts .= ' LOCK IN SHARE MODE'; if ( isset( $noKeyOptions['DISTINCT'] ) && isset( $noKeyOptions['DISTINCTROW'] ) ) $startOpts .= 'DISTINCT'; if ( isset( $options['USE INDEX'] ) && ! is_array( $options['USE INDEX'] ) ) { $useIndex = $this->useIndexClause( $options['USE INDEX'] ); } else { $useIndex = ''; } return array( $startOpts, $useIndex, $tailOpts ); } function ping() { wfDebug( "Function ping() not written for DatabasePostgres.php yet"); return true; } } // end DatabasePostgres class ?>