/**
* This is the Oracle database abstraction layer.
*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
* @file
* @ingroup Database
*/
private $rows;
private $cursor;
private $nrows;
-
+
private $columns = array();
private function array_unique_md( $array_in ) {
/**
* Usually aborts on failure
+ * @return DatabaseBase|null
*/
function open( $server, $user, $password, $dbName ) {
if ( !function_exists( 'oci_connect' ) ) {
$this->mServer = $server;
if ( !$dbName ) {
$this->mDBname = $user;
- } else {
+ } else {
$this->mDBname = $dbName;
}
}
/**
* Closes a database connection, if it is open
* Returns success, true if already closed
+ * @return bool
*/
- function close() {
- $this->mOpened = false;
- if ( $this->mConn ) {
- if ( $this->mTrxLevel ) {
- $this->commit();
- }
- return oci_close( $this->mConn );
- } else {
- return true;
- }
+ protected function closeConnection() {
+ return oci_close( $this->mConn );
}
function execFlags() {
return $this->mTrxLevel ? OCI_NO_AUTO_COMMIT : OCI_COMMIT_ON_SUCCESS;
}
- function doQuery( $sql ) {
+ protected function doQuery( $sql ) {
wfDebug( "SQL: [$sql]\n" );
if ( !mb_check_encoding( $sql ) ) {
throw new MWException( "SQL encoding is invalid\n$sql" );
if ( $res instanceof ResultWrapper ) {
$res = $res->result;
}
-
+
$res->free();
}
if ( $res instanceof ResultWrapper ) {
$res = $res->result;
}
-
+
return $res->fetchObject();
}
/**
* This must be called after nextSequenceVal
+ * @return null
*/
function insertId() {
return $this->mInsertId;
/**
* Returns information about an index
* If errors are explicitly ignored, returns NULL on failure
+ * @return bool
*/
function indexInfo( $table, $index, $fname = 'DatabaseOracle::indexExists' ) {
return false;
if ( is_numeric( $col ) ) {
$bind = $val;
$val = null;
- return $bind;
- } else if ( $includeCol ) {
+ return $bind;
+ } elseif ( $includeCol ) {
$bind = "$col = ";
}
-
+
if ( $val == '' && $val !== 0 && $col_type != 'BLOB' && $col_type != 'CLOB' ) {
$val = null;
}
+ if ( $val === 'NULL' ) {
+ $val = null;
+ }
+
if ( $val === null ) {
if ( $col_info != false && $col_info->isNullable() == 0 && $col_info->defaultValue() != null ) {
$bind .= 'DEFAULT';
} else {
$bind .= ':' . $col;
}
-
+
return $bind;
}
} else {
$first = false;
}
-
+
$sql .= $this->fieldBindStatement( $table, $col, $val );
}
$sql .= ')';
$val = $val->fetch();
}
+ // backward compatibility
if ( preg_match( '/^timestamp.*/i', $col_type ) == 1 && strtolower( $val ) == 'infinity' ) {
- $val = '31-12-2030 12:00:00.000000';
+ $val = $this->getInfinity();
}
$val = ( $wgContLang != null ) ? $wgContLang->checkTitleEncoding( $val ) : $val;
return $retval;
}
- function tableName( $name, $quoted = true ) {
+ function tableName( $name, $format = 'quoted' ) {
/*
Replace reserved words with better ones
Using uppercase because that's the only way Oracle can handle
break;
}
- return parent::tableName( strtoupper( $name ), $quoted );
+ return parent::tableName( strtoupper( $name ), $format );
}
function tableNameInternal( $name ) {
}
/**
* Return the next in a sequence, save the value for retrieval via insertId()
+ * @return null
*/
function nextSequenceValue( $seqName ) {
$res = $this->query( "SELECT $seqName.nextval FROM dual" );
/**
* Return sequence_name if table has a sequence
+ * @return bool
*/
private function getSequenceData( $table ) {
if ( $this->sequenceData == null ) {
FROM all_sequences asq, all_tab_columns atc
WHERE decode(atc.table_name, '{$this->mTablePrefix}MWUSER', '{$this->mTablePrefix}USER', atc.table_name) || '_' ||
atc.column_name || '_SEQ' = '{$this->mTablePrefix}' || asq.sequence_name
- AND asq.sequence_owner = '{$this->mDBname}'
- AND atc.owner = '{$this->mDBname}'" );
+ AND asq.sequence_owner = upper('{$this->mDBname}')
+ AND atc.owner = upper('{$this->mDBname}')" );
while ( ( $row = $result->fetchRow() ) !== false ) {
- $this->sequenceData[$this->tableName( $row[1] )] = array(
+ $this->sequenceData[$row[1]] = array(
'sequence' => $row[0],
'column' => $row[2]
);
return ( isset( $this->sequenceData[$table] ) ) ? $this->sequenceData[$table] : false;
}
- /**
- * REPLACE query wrapper
- * Oracle 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.
- *
- * @param $table String: table name
- * @param $uniqueIndexes Array: array of indexes. Each element may be
- * either a field name or an array of field names
- * @param $rows Array: rows to insert to $table
- * @param $fname String: function name, you can use __METHOD__ here
- */
- function replace( $table, $uniqueIndexes, $rows, $fname = 'DatabaseOracle::replace' ) {
- $table = $this->tableName( $table );
-
- if ( count( $rows ) == 0 ) {
- return;
- }
-
- # Single row case
- if ( !is_array( reset( $rows ) ) ) {
- $rows = array( $rows );
- }
-
- $sequenceData = $this->getSequenceData( $table );
-
- foreach ( $rows as $row ) {
- # Delete rows which collide
- if ( $uniqueIndexes ) {
- $deleteConds = array();
- foreach ( $uniqueIndexes as $key=>$index ) {
- if ( is_array( $index ) ) {
- $deleteConds2 = array();
- foreach ( $index as $col ) {
- $deleteConds2[$col] = $row[$col];
- }
- $deleteConds[$key] = $this->makeList( $deleteConds2, LIST_AND );
- } else {
- $deleteConds[$index] = $row[$index];
- }
- }
- $deleteConds = array( $this->makeList( $deleteConds, LIST_OR ) );
- $this->delete( $table, $deleteConds, $fname );
- }
-
-
- if ( $sequenceData !== false && !isset( $row[$sequenceData['column']] ) ) {
- $row[$sequenceData['column']] = $this->nextSequenceValue( $sequenceData['sequence'] );
- }
-
- # Now insert the row
- $this->insert( $table, $row, $fname );
- }
- }
-
- # DELETE where the condition is a join
- function deleteJoin( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname = 'DatabaseOracle::deleteJoin' ) {
- if ( !$conds ) {
- throw new DBUnexpectedError( $this, 'DatabaseOracle::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 ) {
$fieldInfoData = $this->fieldInfo( $table, $field );
if (!empty($prefix)) {
$listWhere = ' AND table_name LIKE \''.strtoupper($prefix).'%\'';
}
-
+
$owner = strtoupper( $this->mDBname );
$result = $this->doQuery( "SELECT table_name FROM all_tables WHERE owner='$owner' AND table_name NOT LIKE '%!_IDX\$_' ESCAPE '!' $listWhere" );
// dirty code ... i know
$endArray = array();
- $endArray[] = $prefix.'MWUSER';
- $endArray[] = $prefix.'PAGE';
- $endArray[] = $prefix.'IMAGE';
+ $endArray[] = strtoupper($prefix.'MWUSER');
+ $endArray[] = strtoupper($prefix.'PAGE');
+ $endArray[] = strtoupper($prefix.'IMAGE');
$fixedOrderTabs = $endArray;
while (($row = $result->fetchRow()) !== false) {
if (!in_array($row['table_name'], $fixedOrderTabs))
if( !$this->tableExists( $tableName ) ) {
return false;
}
-
+
return $this->doQuery( "DROP TABLE $tableName CASCADE CONSTRAINTS PURGE" );
}
$rset = $this->doQuery( 'SELECT version FROM product_component_version WHERE UPPER(product) LIKE \'ORACLE DATABASE%\'' );
if ( !( $row = $rset->fetchRow() ) ) {
return oci_server_version( $this->mConn );
- }
+ }
return $row['version'];
}
/**
* Query whether a given index exists
+ * @return bool
*/
function indexExists( $table, $index, $fname = 'DatabaseOracle::indexExists' ) {
$table = $this->tableName( $table );
/**
* Query whether a given table exists (in the given schema, or the default mw one if not given)
+ * @return int
*/
- function tableExists( $table ) {
+ function tableExists( $table, $fname = __METHOD__ ) {
$table = $this->tableName( $table );
- $table = strtoupper( $this->removeIdentifierQuotes( $table ) );
- $owner = strtoupper( $this->mDBname );
- $SQL = "SELECT 1 FROM all_tables WHERE owner='$owner' AND table_name='$table'";
+ $table = $this->addQuotes( strtoupper( $this->removeIdentifierQuotes( $table ) ) );
+ $owner = $this->addQuotes( strtoupper( $this->mDBname ) );
+ $SQL = "SELECT 1 FROM all_tables WHERE owner=$owner AND table_name=$table";
$res = $this->doQuery( $SQL );
if ( $res ) {
$count = $res->numRows();
}
/* defines must comply with ^define\s*([^\s=]*)\s*=\s?'\{\$([^\}]*)\}'; */
- function sourceStream( $fp, $lineCallback = false, $resultCallback = false, $fname = 'DatabaseOracle::sourceStream' ) {
+ function sourceStream( $fp, $lineCallback = false, $resultCallback = false,
+ $fname = 'DatabaseOracle::sourceStream', $inputCallback = false ) {
$cmd = '';
$done = false;
$dollarquote = false;
}
$cmd = $this->replaceVars( $cmd );
+ if ( $inputCallback ) {
+ call_user_func( $inputCallback, $cmd );
+ }
$res = $this->doQuery( $cmd );
if ( $resultCallback ) {
call_user_func( $resultCallback, $res, $this );
private function wrapFieldForWhere( $table, &$col, &$val ) {
global $wgContLang;
-
+
$col_info = $this->fieldInfoMulti( $table, $col );
$col_type = $col_info != false ? $col_info->type() : 'CONSTANT';
if ( $col_type == 'CLOB' ) {
if ( is_array($conds) ) {
$conds = $this->wrapConditionsForWhere( $table, $conds );
}
+ // a hack for deleting pages, users and images (which have non-nullable FKs)
+ // all deletions on these tables have transactions so final failure rollbacks these updates
+ $table = $this->tableName( $table );
+ if ( $table == $this->tableName( 'user' ) ) {
+ $this->update( 'archive', array( 'ar_user' => 0 ), array( 'ar_user' => $conds['user_id'] ), $fname );
+ $this->update( 'ipblocks', array( 'ipb_user' => 0 ), array( 'ipb_user' => $conds['user_id'] ), $fname );
+ $this->update( 'image', array( 'img_user' => 0 ), array( 'img_user' => $conds['user_id'] ), $fname );
+ $this->update( 'oldimage', array( 'oi_user' => 0 ), array( 'oi_user' => $conds['user_id'] ), $fname );
+ $this->update( 'filearchive', array( 'fa_deleted_user' => 0 ), array( 'fa_deleted_user' => $conds['user_id'] ), $fname );
+ $this->update( 'filearchive', array( 'fa_user' => 0 ), array( 'fa_user' => $conds['user_id'] ), $fname );
+ $this->update( 'uploadstash', array( 'us_user' => 0 ), array( 'us_user' => $conds['user_id'] ), $fname );
+ $this->update( 'recentchanges', array( 'rc_user' => 0 ), array( 'rc_user' => $conds['user_id'] ), $fname );
+ $this->update( 'logging', array( 'log_user' => 0 ), array( 'log_user' => $conds['user_id'] ), $fname );
+ } elseif ( $table == $this->tableName( 'image' ) ) {
+ $this->update( 'oldimage', array( 'oi_name' => 0 ), array( 'oi_name' => $conds['img_name'] ), $fname );
+ }
return parent::delete( $table, $conds, $fname );
}
function update( $table, $values, $conds, $fname = 'DatabaseOracle::update', $options = array() ) {
global $wgContLang;
-
+
$table = $this->tableName( $table );
$opts = $this->makeUpdateOptions( $options );
$sql = "UPDATE $opts $table SET ";
-
+
$first = true;
foreach ( $values as $col => &$val ) {
$sqlSet = $this->fieldBindStatement( $table, $col, $val, true );
-
+
if ( !$first ) {
$sqlSet = ', ' . $sqlSet;
} else {
$sql .= $sqlSet;
}
- if ( $conds != '*' ) {
+ if ( $conds !== array() && $conds !== '*' ) {
$conds = $this->wrapConditionsForWhere( $table, $conds );
$sql .= ' WHERE ' . $this->makeList( $conds, LIST_AND );
}
throw new DBUnexpectedError( $this, "Cannot create LOB descriptor: " . $e['message'] );
}
- if ( $col_type == 'BLOB' ) {
- $lob[$col]->writeTemporary( $val );
+ if ( $col_type == 'BLOB' ) {
+ $lob[$col]->writeTemporary( $val );
oci_bind_by_name( $stmt, ":$col", $lob[$col], - 1, SQLT_BLOB );
} else {
$lob[$col]->writeTemporary( $val );
return 'BITOR(' . $fieldLeft . ', ' . $fieldRight . ')';
}
- function setFakeMaster( $enabled = true ) { }
+ function setFakeMaster( $enabled = true ) {
+ }
function getDBname() {
return $this->mDBname;
public function getSearchEngine() {
return 'SearchOracle';
}
+
+ public function getInfinity() {
+ return '31-12-2030 12:00:00.000000';
+ }
+
} // end DatabaseOracle class
dépôts / lhc / web / wiklou.git / blobdiff