/**
* This is the IBM DB2 database abstraction layer.
* See maintenance/ibm_db2/README for development notes
- * and other specific information
+ * and other specific information
*
* @file
* @ingroup Database
* This represents a column in a DB2 database
* @ingroup Database
*/
-class IBM_DB2Field {
+class IBM_DB2Field implements Field {
private $name = '';
private $tablename = '';
private $type = '';
FROM sysibm.syscolumns
WHERE tbcreator=%s AND tbname=%s AND name=%s;
SQL;
- $res = $db->query( sprintf( $q,
+ $res = $db->query(
+ sprintf( $q,
$db->addQuotes( $wgDBmwschema ),
$db->addQuotes( $table ),
- $db->addQuotes( $field )) );
+ $db->addQuotes( $field )
+ )
+ );
$row = $db->fetchObject( $res );
- if ( !$row )
+ if ( !$row ) {
return null;
+ }
$n = new IBM_DB2Field;
$n->type = $row->typname;
$n->nullable = ( $row->attnotnull == 'N' );
* 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
return $this->mData;
}
- public function __toString()
- {
- return $this->mData;
- }
+ public function __toString() {
+ return $this->mData;
+ }
}
/**
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 = 'mediawiki';
/** Option that applies to nothing */
const NONE_OPTION = 0x00;
* @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;
- }
- else {
+ } else {
$this->mSchema = $schema;
}
$this->setDB2Option( 'rowcount', 'DB2_ROWCOUNT_PREFETCH_ON',
self::STMT_OPTION );
- $this->open( $server, $user, $password, $dbName );
+ parent::__construct( $server, $user, $password, $dbName, $flags );
}
/**
* @param $type Integer: whether this is a Connection or Statement otion
*/
private function setDB2Option( $name, $const, $type ) {
- if ( defined( $const )) {
+ if ( defined( $const ) ) {
if ( $type & self::CONN_OPTION ) {
$this->mConnOptions[$name] = constant( $const );
}
if ( $type & self::STMT_OPTION ) {
$this->mStmtOptions[$name] = constant( $const );
}
- }
- else {
+ } else {
$this->installPrint(
"$const is not defined. ibm_db2 version is likely too low." );
}
/**
* Opens a database connection and returns it
* Closes any existing connection
- * @return a fresh connection
+ *
* @param $server String: hostname
* @param $user String
* @param $password String
* @param $dbName String: database name
+ * @return a fresh connection
*/
- public function open( $server, $user, $password, $dbName )
- {
+ public function open( $server, $user, $password, $dbName ) {
// Load the port number
global $wgDBport;
wfProfileIn( __METHOD__ );
$this->reportConnectionError( $error );
}
- if ( strlen( $user ) < 1) {
+ if ( strlen( $user ) < 1 ) {
return null;
}
/**
* Opens a cataloged database connection, sets mConn
*/
- protected function openCataloged( $dbName, $user, $password )
- {
+ protected function openCataloged( $dbName, $user, $password ) {
@$this->mConn = db2_pconnect( $dbName, $user, $password );
}
public function close() {
$this->mOpened = false;
if ( $this->mConn ) {
- if ($this->trxLevel() > 0) {
+ if ( $this->trxLevel() > 0 ) {
$this->commit();
}
return db2_close( $this->mConn );
- }
- else {
+ } else {
return true;
}
}
- /**
- * 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
$this->applySchema();
$ret = db2_exec( $this->mConn, $sql, $this->mStmtOptions );
- if( $ret == FALSE ) {
+ if( $ret == false ) {
$error = db2_stmt_errormsg();
$this->installPrint( "<pre>$sql</pre>" );
$this->installPrint( $error );
- throw new DBUnexpectedError( $this, 'SQL error: '
+ throw new DBUnexpectedError( $this, 'SQL error: '
. htmlspecialchars( $error ) );
}
$this->mLastResult = $ret;
- $this->mAffectedRows = null; // Not calculated until asked for
+ $this->mAffectedRows = null; // Not calculated until asked for
return $ret;
}
WHERE ST.NAME = '$table' AND ST.CREATOR = '$schema'
EOF;
$res = $this->query( $sql );
- if ( !$res ) return false;
+ if ( !$res ) {
+ return false;
+ }
// If the table exists, there should be one of it
@$row = $this->fetchRow( $res );
$count = $row[0];
- if ( $count == '1' or $count == 1 ) {
+ if ( $count == '1' || $count == 1 ) {
return true;
}
/**
* Fetch the next row from the given result object, in associative array
- * form. Fields are retrieved with $row['fieldname'].
+ * form. Fields are retrieved with $row['fieldname'].
*
* @param $res SQL result object as returned from Database::query(), etc.
* @return DB2 row object
return $row;
}
- /**
- * Override if introduced to base Database class
- */
- public function initial_setup() {
- // do nothing
- }
-
/**
* Create tables, stored procedures, and so on
*/
$res = $this->sourceFile( "../maintenance/ibm_db2/tables.sql" );
if ( $res !== true ) {
- print " <b>FAILED</b>: " . htmlspecialchars( $res ) . "</li>";
+ print ' <b>FAILED</b>: ' . htmlspecialchars( $res ) . '</li>';
} else {
- print " done</li>";
+ print ' done</li>';
}
$res = $this->sourceFile( "../maintenance/ibm_db2/foreignkeys.sql" );
if ( $res !== true ) {
- print " <b>FAILED</b>: " . htmlspecialchars( $res ) . "</li>";
+ print ' <b>FAILED</b>: ' . htmlspecialchars( $res ) . '</li>';
} else {
- print "<li>Foreign keys done</li>";
+ print '<li>Foreign keys done</li>';
}
- $res = null;
// TODO: populate interwiki links
if ( $this->lastError() ) {
$this->installPrint(
- "Errors encountered during table creation -- rolled back" );
- $this->installPrint( "Please install again" );
+ 'Errors encountered during table creation -- rolled back' );
+ $this->installPrint( 'Please install again' );
$this->rollback();
- }
- else {
+ } else {
$this->commit();
}
- }
- catch ( MWException $mwe )
- {
+ } catch ( MWException $mwe ) {
print "<br><pre>$mwe</pre><br>";
}
}
/**
* Escapes strings
* Doesn't escape numbers
+ *
* @param $s String: string to escape
* @return escaped string
*/
public function addQuotes( $s ) {
//$this->installPrint( "DB2::addQuotes( $s )\n" );
if ( is_null( $s ) ) {
- return "NULL";
- } else if ( $s instanceof Blob ) {
+ return 'NULL';
+ } elseif ( $s instanceof Blob ) {
return "'" . $s->fetch( $s ) . "'";
- } else if ( $s instanceof IBM_DB2Blob ) {
+ } elseif ( $s instanceof IBM_DB2Blob ) {
return "'" . $this->decodeBlob( $s ) . "'";
}
$s = $this->strencode( $s );
if ( is_numeric( $s ) ) {
return $s;
- }
- else {
+ } else {
return "'$s'";
}
}
/**
* Verifies that a DB2 column/field type is numeric
- * @return bool true if numeric
+ *
* @param $type String: DB2 column type
+ * @return Boolean: true if numeric
*/
public function is_numeric_type( $type ) {
- switch ( strtoupper( $type )) {
- case 'SMALLINT':
- case 'INTEGER':
- case 'INT':
- case 'BIGINT':
- case 'DECIMAL':
- case 'REAL':
- case 'DOUBLE':
- case 'DECFLOAT':
- return true;
+ switch ( strtoupper( $type ) ) {
+ case 'SMALLINT':
+ case 'INTEGER':
+ case 'INT':
+ case 'BIGINT':
+ case 'DECIMAL':
+ case 'REAL':
+ case 'DOUBLE':
+ case 'DECFLOAT':
+ return true;
}
return false;
}
$s = utf8_encode( $s );
// Fix its stupidity
$from = array( "\\\\", "\\'", '\\n', '\\t', '\\"', '\\r' );
- $to = array( "\\", "''", "\n", "\t", '"', "\r" );
+ $to = array( "\\", "''", "\n", "\t", '"', "\r" );
$s = str_replace( $from, $to, $s ); // DB2 expects '', not \' escaping
return $s;
}
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
foreach ( $a as $field => $value ) {
if ( !$first ) {
$list .= ", $field = ?";
- }
- else {
+ } else {
$list .= "$field = ?";
$first = false;
}
/**
* Construct a LIMIT query with optional offset
* This is used for query pages
+ *
* @param $sql string SQL query we will append the limit too
* @param $limit integer the SQL limit
* @param $offset integer the SQL offset (default false)
if( $offset ) {
if ( stripos( $sql, 'where' ) === false ) {
return "$sql AND ( ROWNUM BETWEEN $offset AND $offset+$limit )";
- }
- else {
+ } else {
return "$sql WHERE ( ROWNUM BETWEEN $offset AND $offset+$limit )";
}
}
/**
* Handle reserved keyword replacement in table names
- * @return
+ *
* @param $name Object
+ * @return String
*/
public function tableName( $name ) {
// we want maximum compatibility with MySQL schema
/**
* Generates a timestamp in an insertable format
- * @return string timestamp value
+ *
* @param $ts timestamp
+ * @return String: timestamp value
*/
- public function timestamp( $ts=0 ) {
+ public function timestamp( $ts = 0 ) {
// TS_MW cannot be easily distinguished from an integer
return wfTimestamp( TS_DB2, $ts );
}
/**
* Updates the mInsertId property with the value of the last insert
* into a generated column
+ *
* @param $table String: sanitized table name
* @param $primaryKey Mixed: string name of the primary key
* @param $stmt Resource: prepared statement resource
// assume success
$res = true;
// If we are not in a transaction, we need to be for savepoint trickery
- if ( ! $this->mTrxLevel ) {
+ if ( !$this->mTrxLevel ) {
$this->begin();
}
// insert each row into the database
$res = $res & $this->execute( $stmt, $row );
if ( !$res ) {
- $this->installPrint( "Last error:" );
+ $this->installPrint( 'Last error:' );
$this->installPrint( $this->lastError() );
}
// get the last inserted value into a generated column
$this->calcInsertId( $table, $primaryKey, $stmt );
}
- }
- else {
+ } else {
$olde = error_reporting( 0 );
// For future use, we may want to track the number of actual inserts
// Right now, insert (all writes) simply return true/false
$overhead = "SAVEPOINT $ignore ON ROLLBACK RETAIN CURSORS";
db2_exec( $this->mConn, $overhead, $this->mStmtOptions );
-
$this->execute( $stmt, $row );
if ( !$res2 ) {
- $this->installPrint( "Last error:" );
+ $this->installPrint( 'Last error:' );
$this->installPrint( $this->lastError() );
}
// get the last inserted value into a generated column
if ( $errNum ) {
db2_exec( $this->mConn, "ROLLBACK TO SAVEPOINT $ignore",
$this->mStmtOptions );
- }
- else {
+ } else {
db2_exec( $this->mConn, "RELEASE SAVEPOINT $ignore",
$this->mStmtOptions );
$numrowsinserted++;
$schema = $this->mSchema;
// find out the primary keys
$keyres = db2_primary_keys( $this->mConn, null, strtoupper( $schema ),
- strtoupper( $table ));
+ strtoupper( $table )
+ );
$keys = array();
for (
$row = $this->fetchObject( $keyres );
$row != null;
- $row = $this->fetchObject( $keyres ))
+ $row = $this->fetchObject( $keyres )
+ )
{
$keys[] = strtolower( $row->column_name );
}
// remove primary keys
foreach ( $args as $ai => $row ) {
- foreach ( $keys as $ki => $key ) {
+ foreach ( $keys as $key ) {
if ( $row[$key] == null ) {
unset( $row[$key] );
}
* 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 );
$sql .= " WHERE " . $this->makeList( $conds, LIST_AND );
}
$stmt = $this->prepare( $sql );
- $this->installPrint( "UPDATE: " . print_r( $values, TRUE ));
+ $this->installPrint( 'UPDATE: ' . print_r( $values, true ) );
// assuming for now that an array with string keys will work
// if not, convert to simple array first
$result = $this->execute( $stmt, $values );
*
* 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";
// Forced result for simulated queries
return $this->mAffectedRows;
}
- if( empty( $this->mLastResult ) )
+ if( empty( $this->mLastResult ) ) {
return 0;
+ }
return db2_num_rows( $this->mLastResult );
}
foreach ( $uniqueIndexes as $index ) {
if ( $first ) {
$first = false;
- $sql .= "( ";
+ $sql .= '( ';
} else {
$sql .= ' ) OR ( ';
}
}
if ( $this->mNumRows ) {
return $this->mNumRows;
- }
- else {
+ } else {
return 0;
}
}
$res = $res->result;
}
if ( !@db2_free_result( $res ) ) {
- throw new DBUnexpectedError( $this, "Unable to free DB2 result\n" );
+ throw new DBUnexpectedError( $this, "Unable to free DB2 result\n" );
}
}
* @return Mixed: database result resource for fetch functions or false
* on failure
*/
- public function select( $table, $vars, $conds='', $fname = 'DatabaseIbm_db2::select', $options = array(), $join_conds = array() )
+ public function select( $table, $vars, $conds = '', $fname = 'DatabaseIbm_db2::select', $options = array(), $join_conds = array() )
{
$res = parent::select( $table, $vars, $conds, $fname, $options,
$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
// DB2 9.5.4 and the corresponding ibm_db2 driver will introduce
// a working one
$obj = $this->fetchObject( $res2 );
$this->mNumRows = $obj->num_rows;
-
return $res;
}
/**
* Returns link to IBM DB2 free download
- * @return string wikitext of a link to the server software's web site
+ * @return String: wikitext of a link to the server software's web site
*/
public static function getSoftwareLink() {
- return "[http://www.ibm.com/db2/express/ IBM DB2]";
+ return '[http://www.ibm.com/db2/express/ IBM DB2]';
}
/**
* @return String
*/
public function getSearchEngine() {
- return "SearchIBM_DB2";
+ return 'SearchIBM_DB2';
}
/**
* Not implemented
* @return string ''
*/
- public function getStatus( $which="%" ) {
- $this->installPrint( 'Not implemented for DB2: getStatus()' );
- return '';
+ public function getStatus( $which = '%' ) {
+ $this->installPrint( 'Not implemented for DB2: getStatus()' );
+ return '';
}
/**
* Not implemented
$row = $this->fetchObject( $res );
if ( $row != null ) {
return $row;
+ } else {
+ return false;
}
- else return false;
}
/**
* @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 );
* Switches module between regular and install modes
*/
public function setMode( $mode ) {
- $old = $this->mMode;
+ $old = $this->mMode;
$this->mMode = $mode;
return $old;
}
* @return String
*/
function bitNot( $field ) {
- //expecting bit-fields smaller than 4bytes
+ // expecting bit-fields smaller than 4bytes
return "BITNOT( $field )";
}
dépôts / lhc / web / wiklou.git / blobdiff