* This represents a column in a DB2 database
* @ingroup Database
*/
-class IBM_DB2Field {
+class IBM_DB2Field implements Field {
private $name = '';
private $tablename = '';
private $type = '';
* Can column be null?
* @return bool true or false
*/
- function nullable() { return $this->nullable; }
+ function isNullable() { return $this->nullable; }
/**
* How much can you fit in the column per row?
* @return int length
protected $mPHPError = false;
protected $mServer, $mUser, $mPassword, $mConn = null, $mDBname;
- protected $mOut, $mOpened = false;
+ protected $mOpened = false;
- protected $mFailFunction;
protected $mTablePrefix;
protected $mFlags;
protected $mTrxLevel = 0;
public $mStmtOptions = array();
/** Default schema */
- const USE_GLOBAL = 'mediawiki';
+ const USE_GLOBAL = 'get from global';
/** Option that applies to nothing */
const NONE_OPTION = 0x00;
return 'ibm_db2';
}
- ######################################
- # Setup
- ######################################
-
-
/**
*
* @param $server String: hostname of database server
* @param $user String: username
* @param $password String: password
* @param $dbName String: database name on the server
- * @param $failFunction Callback (optional)
* @param $flags Integer: database behaviour flags (optional, unused)
* @param $schema String
*/
- public function DatabaseIbm_db2( $server = false, $user = false,
+ public function __construct( $server = false, $user = false,
$password = false,
- $dbName = false, $failFunction = false, $flags = 0,
+ $dbName = false, $flags = 0,
$schema = self::USE_GLOBAL )
{
-
- global $wgOut, $wgDBmwschema;
- # 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 = DBO_TRX | $flags;
+ global $wgDBmwschema;
if ( $schema == self::USE_GLOBAL ) {
$this->mSchema = $wgDBmwschema;
}
// configure the connection and statement objects
+ /*
+ $this->setDB2Option( 'cursor', 'DB2_SCROLLABLE',
+ self::CONN_OPTION | self::STMT_OPTION );
+ */
$this->setDB2Option( 'db2_attr_case', 'DB2_CASE_LOWER',
self::CONN_OPTION | self::STMT_OPTION );
$this->setDB2Option( 'deferred_prepare', 'DB2_DEFERRED_PREPARE_ON',
$this->setDB2Option( 'rowcount', 'DB2_ROWCOUNT_PREFETCH_ON',
self::STMT_OPTION );
- $this->open( $server, $user, $password, $dbName );
+ parent::__construct( $server, $user, $password, $dbName, DBO_TRX | $flags );
}
/**
* @return a fresh connection
*/
public function open( $server, $user, $password, $dbName ) {
- // Load the port number
- global $wgDBport;
wfProfileIn( __METHOD__ );
- // Load IBM DB2 driver if missing
+ # Load IBM DB2 driver if missing
wfDl( 'ibm_db2' );
- // Test for IBM DB2 support, to avoid suppressed fatal error
+ # Test for IBM DB2 support, to avoid suppressed fatal error
if ( !function_exists( 'db2_connect' ) ) {
- $error = <<<ERROR
-DB2 functions missing, have you enabled the ibm_db2 extension for PHP?
-
-ERROR;
- $this->installPrint( $error );
- $this->reportConnectionError( $error );
+ throw new DBConnectionError( $this, "DB2 functions missing, have you enabled the ibm_db2 extension for PHP?" );
}
- if ( strlen( $user ) < 1 ) {
- return null;
- }
+ global $wgDBport;
// Close existing connection
$this->close();
$this->openUncataloged( $dbName, $user, $password, $server, $port );
- // Apply connection config
- db2_set_option( $this->mConn, $this->mConnOptions, 1 );
- // Some MediaWiki code is still transaction-less (?).
- // The strategy is to keep AutoCommit on for that code
- // but switch it off whenever a transaction is begun.
- db2_autocommit( $this->mConn, DB2_AUTOCOMMIT_ON );
-
if ( !$this->mConn ) {
$this->installPrint( "DB connection error\n" );
$this->installPrint(
"Server: $server, Database: $dbName, User: $user, Password: "
. substr( $password, 0, 3 ) . "...\n" );
$this->installPrint( $this->lastError() . "\n" );
- return null;
+ wfProfileOut( __METHOD__ );
+ wfDebug( "DB connection error\n" );
+ wfDebug( "Server: $server, Database: $dbName, User: $user, Password: " . substr( $password, 0, 3 ) . "...\n" );
+ wfDebug( $this->lastError() . "\n" );
+ throw new DBConnectionError( $this, $this->lastError() );
}
+ // Apply connection config
+ db2_set_option( $this->mConn, $this->mConnOptions, 1 );
+ // Some MediaWiki code is still transaction-less (?).
+ // The strategy is to keep AutoCommit on for that code
+ // but switch it off whenever a transaction is begun.
+ db2_autocommit( $this->mConn, DB2_AUTOCOMMIT_ON );
+
$this->mOpened = true;
$this->applySchema();
*/
protected function openUncataloged( $dbName, $user, $password, $server, $port )
{
- $str = "DRIVER={IBM DB2 ODBC DRIVER};";
- $str .= "DATABASE=$dbName;";
- $str .= "HOSTNAME=$server;";
- // port was formerly validated to not be 0
- $str .= "PORT=$port;";
- $str .= "PROTOCOL=TCPIP;";
- $str .= "UID=$user;";
- $str .= "PWD=$password;";
-
- @$this->mConn = db2_pconnect( $str, $user, $password );
+ $dsn = "DRIVER={IBM DB2 ODBC DRIVER};DATABASE=$dbName;CHARSET=UTF-8;HOSTNAME=$server;PORT=$port;PROTOCOL=TCPIP;UID=$user;PWD=$password;";
+ @$this->mConn = db2_pconnect($dsn, "", "", array());
}
/**
}
}
- /**
- * Returns a fresh instance of this class
- *
- * @param $server String: hostname of database server
- * @param $user String: username
- * @param $password String
- * @param $dbName String: database name on the server
- * @param $failFunction Callback (optional)
- * @param $flags Integer: database behaviour flags (optional, unused)
- * @return DatabaseIbm_db2 object
- */
- static function newFromParams( $server, $user, $password, $dbName,
- $failFunction = false, $flags = 0 )
- {
- return new DatabaseIbm_db2( $server, $user, $password, $dbName,
- $failFunction, $flags );
- }
-
/**
* Retrieves the most current database error
* Forces a database rollback
/*private*/
public function doQuery( $sql ) {
$this->applySchema();
-
+
+ // Needed to handle any UTF-8 encoding issues in the raw sql
+ // Note that we fully support prepared statements for DB2
+ // prepare() and execute() should be used instead of doQuery() whenever possible
+ $sql = utf8_decode($sql);
+
$ret = db2_exec( $this->mConn, $sql, $this->mStmtOptions );
if( $ret == false ) {
$error = db2_stmt_errormsg();
+
$this->installPrint( "<pre>$sql</pre>" );
$this->installPrint( $error );
throw new DBUnexpectedError( $this, 'SQL error: '
*/
public function tableExists( $table ) {
$schema = $this->mSchema;
- $sql = <<< EOF
-SELECT COUNT( * ) FROM SYSIBM.SYSTABLES ST
-WHERE ST.NAME = '$table' AND ST.CREATOR = '$schema'
-EOF;
+
+ $sql = "SELECT COUNT( * ) FROM SYSIBM.SYSTABLES ST WHERE ST.NAME = '" .
+ strtoupper( $table ) .
+ "' AND ST.CREATOR = '" .
+ strtoupper( $schema ) . "'";
$res = $this->query( $sql );
if ( !$res ) {
return false;
if ( $res instanceof ResultWrapper ) {
$res = $res->result;
}
- @$row = db2_fetch_array( $res );
- if ( $this->lastErrno() ) {
- throw new DBUnexpectedError( $this, 'Error in fetchRow(): '
- . htmlspecialchars( $this->lastError() ) );
+ if ( db2_num_rows( $res ) > 0) {
+ @$row = db2_fetch_array( $res );
+ if ( $this->lastErrno() ) {
+ throw new DBUnexpectedError( $this, 'Error in fetchRow(): '
+ . htmlspecialchars( $this->lastError() ) );
+ }
+ return $row;
}
- return $row;
+ return false;
}
/**
} else {
print '<li>Foreign keys done</li>';
}
- $res = null;
// TODO: populate interwiki links
function makeList( $a, $mode = LIST_COMMA ) {
if ( !is_array( $a ) ) {
throw new DBUnexpectedError( $this,
- 'DatabaseBase::makeList called with incorrect parameters' );
+ 'DatabaseIbm_db2::makeList called with incorrect parameters' );
}
// if this is for a prepared UPDATE statement
* Handle reserved keyword replacement in table names
*
* @param $name Object
+ * @param $name Boolean
* @return String
*/
- public function tableName( $name ) {
+ public function tableName( $name, $quoted = true ) {
// we want maximum compatibility with MySQL schema
return $name;
}
} else {
$sql .= '( ?' . str_repeat( ',?', $key_count-1 ) . ' )';
}
- //$this->installPrint( "Preparing the following SQL:" );
- //$this->installPrint( "$sql" );
- //$this->installPrint( print_r( $args, true ));
+ $this->installPrint( "Preparing the following SQL:" );
+ $this->installPrint( "$sql" );
+ $this->installPrint( print_r( $args, true ));
$stmt = $this->prepare( $sql );
// start a transaction/enter transaction mode
$overhead = "SAVEPOINT $ignore ON ROLLBACK RETAIN CURSORS";
db2_exec( $this->mConn, $overhead, $this->mStmtOptions );
- $this->execute( $stmt, $row );
+ $res2 = $this->execute( $stmt, $row );
if ( !$res2 ) {
$this->installPrint( 'Last error:' );
*/
private function removeNullPrimaryKeys( $table, $args ) {
$schema = $this->mSchema;
+
// find out the primary keys
- $keyres = db2_primary_keys( $this->mConn, null, strtoupper( $schema ),
- strtoupper( $table )
- );
+ $keyres = $this->doQuery( "SELECT NAME FROM SYSIBM.SYSCOLUMNS WHERE TBNAME = '"
+ . strtoupper( $table )
+ . "' AND TBCREATOR = '"
+ . strtoupper( $schema )
+ . "' AND KEYSEQ > 0" );
+
$keys = array();
for (
- $row = $this->fetchObject( $keyres );
+ $row = $this->fetchRow( $keyres );
$row != null;
- $row = $this->fetchObject( $keyres )
+ $row = $this->fetchRow( $keyres )
)
{
- $keys[] = strtolower( $row->column_name );
+ $keys[] = strtolower( $row[0] );
}
// remove primary keys
foreach ( $args as $ai => $row ) {
* more of IGNORE, LOW_PRIORITY
* @return Boolean
*/
- public function update( $table, $values, $conds, $fname = 'Database::update',
+ public function update( $table, $values, $conds, $fname = 'DatabaseIbm_db2::update',
$options = array() )
{
$table = $this->tableName( $table );
*
* Use $conds == "*" to delete all rows
*/
- public function delete( $table, $conds, $fname = 'Database::delete' ) {
+ public function delete( $table, $conds, $fname = 'DatabaseIbm_db2::delete' ) {
if ( !$conds ) {
throw new DBUnexpectedError( $this,
- 'Database::delete() called with no conditions' );
+ 'DatabaseIbm_db2::delete() called with no conditions' );
}
$table = $this->tableName( $table );
$sql = "DELETE FROM $table";
}
# 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 );
+ $this->insert($table, $row);
}
}
if ( $res instanceof ResultWrapper ) {
$res = $res->result;
}
+
if ( $this->mNumRows ) {
return $this->mNumRows;
} else {
$join_conds );
// We must adjust for offset
- if ( isset( $options['LIMIT'] ) ) {
- if ( isset ( $options['OFFSET'] ) ) {
- $limit = $options['LIMIT'];
- $offset = $options['OFFSET'];
- }
+ if ( isset( $options['LIMIT'] ) && isset ( $options['OFFSET'] ) ) {
+ $limit = $options['LIMIT'];
+ $offset = $options['OFFSET'];
}
// DB2 does not have a proper num_rows() function yet, so we must emulate
* @return Bool
*/
public function indexUnique ( $table, $index,
- $fname = 'Database::indexUnique' )
+ $fname = 'DatabaseIbm_db2::indexUnique' )
{
$table = $this->tableName( $table );
$sql = <<<SQL
{
if ( !$conds ) {
throw new DBUnexpectedError( $this,
- 'Database::deleteJoin() called with empty $conds' );
+ 'DatabaseIbm_db2::deleteJoin() called with empty $conds' );
}
$delTable = $this->tableName( $delTable );
$sql = <<<SQL
DELETE FROM $delTable
WHERE $delVar IN (
- SELECT $joinVar FROM $joinTable
+ SELECT $joinVar FROM $joinTable
SQL;
if ( $conds != '*' ) {
dépôts / lhc / web / wiklou.git / blobdiff