* than MySQL ones, some of them should be moved to parent
* Database class.
*
- * STATUS: Working PG implementation of MediaWiki
- * TODO: Installer support
- *
* @package MediaWiki
*/
*/
require_once( 'Database.php' );
-/**
- *
- * @package MediaWiki
- */
class DatabasePostgres extends Database {
var $mInsertId = NULL;
var $mLastResult = NULL;
function DatabasePostgres($server = false, $user = false, $password = false, $dbName = false,
- $failFunction = false, $flags = 0, $tablePrefix = 'get from global' )
+ $failFunction = false, $flags = 0 )
{
- Database::Database( $server, $user, $password, $dbName, $failFunction, $flags, $tablePrefix );
+
+ global $wgOut, $wgDBprefix, $wgCommandLineMode;
+ # Can't get a reference if it hasn't been set yet
+ if ( !isset( $wgOut ) ) {
+ $wgOut = NULL;
+ }
+ $this->mOut =& $wgOut;
+ $this->mFailFunction = $failFunction;
+ $this->mFlags = $flags;
+
+ $this->open( $server, $user, $password, $dbName);
+
}
- /* static */ function newFromParams( $server = false, $user = false, $password = false, $dbName = false,
- $failFunction = false, $flags = 0, $tablePrefix = 'get from global' )
+ static function newFromParams( $server = false, $user = false, $password = false, $dbName = false,
+ $failFunction = false, $flags = 0)
{
- return new DatabasePostgres( $server, $user, $password, $dbName, $failFunction, $flags, $tablePrefix );
+ return new DatabasePostgres( $server, $user, $password, $dbName, $failFunction, $flags );
}
/**
throw new DBConnectionError( $this, "PostgreSQL functions missing, have you compiled PHP with the --with-pgsql option?\n" );
}
- global $wgDBschema;
+ global $wgDBport;
$this->close();
$this->mServer = $server;
+ $port = $wgDBport;
$this->mUser = $user;
$this->mPassword = $password;
$this->mDBname = $dbName;
- $this->mSchemas = array($wgDBschema,'public');
$success = false;
- if ( '' != $dbName ) {
- # start a database connection
- $hstring="";
- if ($server!=false && $server!="") {
- $hstring="host=$server ";
+ $hstring="";
+ if ($server!=false && $server!="") {
+ $hstring="host=$server ";
+ }
+ if ($port!=false && $port!="") {
+ $hstring .= "port=$port ";
+ }
+
+ 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
+ if (defined('MEDIAWIKI_INSTALL') and !defined('POSTGRES_SEARCHPATH')) {
+ global $wgDBmwschema, $wgDBts2schema;
+
+ ## Do we have the basic tsearch2 table?
+ print "<li>Checking for tsearch2 ...";
+ if (! $this->tableExists("pg_ts_dict", $wgDBts2schema)) {
+ print "FAILED. Make sure tsearch2 is installed. See <a href=";
+ print "'http://www.devx.com/opensource/Article/21674/0/page/2'>this article</a>";
+ print " for instructions.</li>\n";
+ dieout("</ul>");
+ }
+ print "OK</li>\n";
+
+ ## Does the schema already exist? Who owns it?
+ $result = $this->schemaExists($wgDBmwschema);
+ if (!$result) {
+ print "<li>Creating schema <b>$wgDBmwschema</b> ...";
+ $result = $this->doQuery("CREATE SCHEMA $wgDBmwschema");
+ if (!$result) {
+ print "FAILED.</li>\n";
+ return false;
+ }
+ print "ok</li>\n";
}
- @$this->mConn = pg_connect("$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" );
- } else {
- $this->setSchema();
- $this->mOpened = true;
+ else if ($result != $user) {
+ print "<li>Schema <b>$wgDBmwschema</b> exists but is not owned by <b>$user</b>. Not ideal.</li>\n";
}
+ else {
+ print "<li>Schema <b>$wgDBmwschema</b> exists and is owned by <b>$user ($result)</b>. Excellent.</li>\n";
+ }
+
+ ## Fix up the search paths if needed
+ print "<li>Setting the search path for user <b>$user</b> ...";
+ $path = "$wgDBmwschema";
+ if ($wgDBts2schema !== $wgDBmwschema)
+ $path .= ", $wgDBts2schema";
+ if ($wgDBmwschema !== 'public' and $wgDBts2schema !== 'public')
+ $path .= ", public";
+ $SQL = "ALTER USER $user SET search_path = $path";
+ $result = pg_query($this->mConn, $SQL);
+ if (!$result) {
+ print "FAILED.</li>\n";
+ return false;
+ }
+ print "ok</li>\n";
+ ## Set for the rest of this session
+ $SQL = "SET search_path = $path";
+ $result = pg_query($this->mConn, $SQL);
+ if (!$result) {
+ print "<li>Failed to set search_path</li>\n";
+ return false;
+ }
+ define( "POSTGRES_SEARCHPATH", $path );
}
+
return $this->mConn;
}
}
function dataSeek( $res, $row ) { return pg_result_seek( $res, $row ); }
- function lastError() { return pg_last_error(); }
+ function lastError() {
+ if ( $this->mConn ) {
+ return pg_last_error();
+ }
+ else {
+ return "No database connection";
+ }
+ }
function lastErrno() { return 1; }
function affectedRows() {
}
while ( $row = $this->fetchObject( $res ) ) {
- if ( $row->Key_name == $index ) {
+ if ( $row->indexname == $index ) {
return $row;
}
}
}
- function fieldInfo( $table, $field ) {
- throw new DBUnexpectedError($this, 'Database::fieldInfo() error : mysql_fetch_field() not implemented for postgre' );
- /*
- $res = $this->query( "SELECT * FROM '$table' LIMIT 1" );
- $n = pg_num_fields( $res );
- for( $i = 0; $i < $n; $i++ ) {
- // FIXME
- throw new DBUnexpectedError($this, "Database::fieldInfo() error : mysql_fetch_field() not implemented for postgre" );
- $meta = mysql_fetch_field( $res, $i );
- if( $field == $meta->name ) {
- return $meta;
- }
- }
- return false;*/
- }
-
function insert( $table, $a, $fname = 'Database::insert', $options = array() ) {
# PostgreSQL doesn't support options
# We have a go at faking one of them
}
function tableName( $name ) {
- # First run any transformations from the parent object
- $name = parent::tableName( $name );
-
# Replace backticks into double quotes
$name = strtr($name,'`','"');
return $version;
}
- function setSchema($schema=false) {
- $schemas=$this->mSchemas;
- if ($schema) { array_unshift($schemas,$schema); }
- $searchpath=$this->makeList($schemas,LIST_NAMES);
- $this->query("SET search_path = $searchpath");
+
+ /**
+ * 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'";
+ $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 commit( $fname = 'Database::commit' ) {
+ ## XXX
+ return;
+ $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 update_interwiki() {
+ ## Avoid the non-standard "REPLACE INTO" syntax
+ ## Called by config/index.php
+ $f = fopen( "../maintenance/interwiki.sql", 'r' );
+ if ($f == false ) {
+ dieout( "<li>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);
+ if (!preg_match("/^\s*(\(.+?),(\d)\)/", $line, $matches)) {
+ continue;
+ }
+ $yesno = $matches[2]; ## ? "'true'" : "'false'";
+ $this->query("$SQL $matches[1],$matches[2])");
+ }
+ print " (table interwiki successfully populated)...\n";
+ }
+
}
?>
dépôts / lhc / web / wiklou.git / blobdiff