class BlankObject {
}
+
/**
* This represents a column in a DB2 database
* @ingroup Database
*/
class IBM_DB2Field {
- private $name, $tablename, $type, $nullable, $max_length;
+ private $name = '';
+ private $tablename = '';
+ private $type = '';
+ private $nullable = false;
+ private $max_length = 0;
/**
* Builder method for the class
- * @param Object $db Database interface
+ * @param DatabaseIbm_db2 $db Database interface
* @param string $table table name
* @param string $field column name
* @return IBM_DB2Field
/// Number of rows returned by last SELECT
protected $mNumRows = NULL;
+ /// Connection config options - see constructor
+ public $mConnOptions = array();
+ /// Statement config options -- see constructor
+ public $mStmtOptions = array();
+
const CATALOGED = "cataloged";
const UNCATALOGED = "uncataloged";
const USE_GLOBAL = "get from global";
+ const NONE_OPTION = 0x00;
+ const CONN_OPTION = 0x01;
+ const STMT_OPTION = 0x02;
+
+ const REGULAR_MODE = 'regular';
+ const INSTALL_MODE = 'install';
+
+ // Whether this is regular operation or the initial installation
+ protected $mMode = self::REGULAR_MODE;
+
/// Last sequence value used for a primary key
protected $mInsertId = NULL;
*/
/*
- * These need to be implemented TODO
+ * These have been implemented
*
* Administrative: 7 / 7
* constructor [Done]
$this->mSchema = $schema;
}
+ // configure the connection and statement objects
+ $this->setDB2Option('db2_attr_case', 'DB2_CASE_LOWER', self::CONN_OPTION | self::STMT_OPTION);
+ $this->setDB2Option('deferred_prepare', 'DB2_DEFERRED_PREPARE_ON', self::STMT_OPTION);
+ $this->setDB2Option('rowcount', 'DB2_ROWCOUNT_PREFETCH_ON', self::STMT_OPTION);
+
$this->open( $server, $user, $password, $dbName);
}
+ /**
+ * Enables options only if the ibm_db2 extension version supports them
+ * @param string $name Name of the option in the options array
+ * @param string $const Name of the constant holding the right option value
+ * @param int $type Whether this is a Connection or Statement otion
+ */
+ private function setDB2Option($name, $const, $type) {
+ if (defined($const)) {
+ if ($type & self::CONN_OPTION) $this->mConnOptions[$name] = constant($const);
+ if ($type & self::STMT_OPTION) $this->mStmtOptions[$name] = constant($const);
+ }
+ else {
+ $this->installPrint("$const is not defined. ibm_db2 version is likely too low.");
+ }
+ }
+
+ /**
+ * Outputs debug information in the appropriate place
+ * @param string $string The relevant debug message
+ */
+ private function installPrint($string) {
+ wfDebug("$string");
+ if ($this->mMode == self::INSTALL_MODE) {
+ print "<li>$string</li>";
+ flush();
+ }
+ }
+
/**
* Opens a database connection and returns it
* Closes any existing connection
// Test for IBM DB2 support, to avoid suppressed fatal error
if ( !function_exists( 'db2_connect' ) ) {
$error = "DB2 functions missing, have you enabled the ibm_db2 extension for PHP?\n";
- wfDebug($error);
+ $this->installPrint($error);
$this->reportConnectionError($error);
}
elseif ( $cataloged == self::UNCATALOGED ) {
$this->openUncataloged($dbName, $user, $password, $server, $port);
}
- // Don't do this
+ // Apply connection config
+ db2_set_option($this->mConn, $this->mConnOptions, 1);
// Not all MediaWiki code is transactional
- // Rather, turn it off in the begin function and turn on after a commit
- // db2_autocommit($this->mConn, DB2_AUTOCOMMIT_OFF);
+ // Rather, turn autocommit off in the begin function and turn on after a commit
db2_autocommit($this->mConn, DB2_AUTOCOMMIT_ON);
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" );
+ $this->installPrint( "DB connection error\n" );
+ $this->installPrint( "Server: $server, Database: $dbName, User: $user, Password: " . substr( $password, 0, 3 ) . "...\n" );
+ $this->installPrint( $this->lastError()."\n" );
return null;
}
* Forces a database rollback
*/
public function lastError() {
- if ($this->lastError2()) {
- $this->rollback();
- return true;
- }
- return false;
- }
-
- private function lastError2() {
$connerr = db2_conn_errormsg();
- if ($connerr) return $connerr;
+ if ($connerr) {
+ //$this->rollback();
+ return $connerr;
+ }
$stmterr = db2_stmt_errormsg();
- if ($stmterr) return $stmterr;
- if ($this->mConn) return "No open connection.";
- if ($this->mOpened) return "No open connection allegedly.";
+ if ($stmterr) {
+ //$this->rollback();
+ return $stmterr;
+ }
return false;
}
// Switch into the correct namespace
$this->applySchema();
- $ret = db2_exec( $this->mConn, $sql );
+ $ret = db2_exec( $this->mConn, $sql, $this->mStmtOptions );
if( !$ret ) {
print "<br><pre>";
print $sql;
// TODO: populate interwiki links
- $this->commit();
+ if ($this->lastError()) {
+ print "<li>Errors encountered during table creation -- rolled back</li>\n";
+ print "<li>Please install again</li>\n";
+ $this->rollback();
+ }
+ else {
+ $this->commit();
+ }
}
catch (MWException $mwe)
{
* @return escaped string
*/
public function addQuotes( $s ) {
- //wfDebug("DB2::addQuotes($s)\n");
+ //$this->installPrint("DB2::addQuotes($s)\n");
if ( is_null( $s ) ) {
return "NULL";
} else if ($s instanceof Blob) {
}
}
- /**
- * Escapes strings
- * Only escapes numbers going into non-numeric fields
- * @param string s string to escape
- * @return escaped string
- */
- public function addQuotesSmart( $table, $field, $s ) {
- if ( is_null( $s ) ) {
- return "NULL";
- } else if ($s instanceof Blob) {
- return "'".$s->fetch($s)."'";
- }
- $s = $this->strencode($s);
- if ( is_numeric($s) ) {
- // Check with the database if the column is actually numeric
- // This allows for numbers in titles, etc
- $res = $this->doQuery("SELECT $field FROM $table FETCH FIRST 1 ROWS ONLY");
- $type = db2_field_type($res, strtoupper($field));
- if ( $this->is_numeric_type( $type ) ) {
- //wfDebug("DB2: Numeric value going in a numeric column: $s in $type $field in $table\n");
- return $s;
- }
- else {
- wfDebug("DB2: Numeric in non-numeric: '$s' in $type $field in $table\n");
- return "'$s'";
- }
- }
- else {
- return "'$s'";
- }
- }
-
/**
* Verifies that a DB2 column/field type is numeric
* @return bool true if numeric
/**
* Start a transaction (mandatory)
*/
- public function begin() {
+ public function begin( $fname = 'DatabaseIbm_db2::begin' ) {
// turn off auto-commit
db2_autocommit($this->mConn, DB2_AUTOCOMMIT_OFF);
$this->mTrxLevel = 1;
* End a transaction
* Must have a preceding begin()
*/
- public function commit() {
+ public function commit( $fname = 'DatabaseIbm_db2::commit' ) {
db2_commit($this->mConn);
// turn auto-commit back on
db2_autocommit($this->mConn, DB2_AUTOCOMMIT_ON);
/**
* Cancel a transaction
*/
- public function rollback() {
+ public function rollback( $fname = 'DatabaseIbm_db2::rollback' ) {
db2_rollback($this->mConn);
// turn auto-commit back on
// not sure if this is appropriate
* LIST_NAMES - comma separated field names
*/
public function makeList( $a, $mode = LIST_COMMA ) {
- wfDebug("DB2::makeList()\n");
+ $this->installPrint("DB2::makeList()\n");
if ( !is_array( $a ) ) {
throw new DBUnexpectedError( $this, 'Database::makeList called with incorrect parameters' );
}
return $list;
}
- /**
- * Makes an encoded list of strings from an array
- * Quotes numeric values being inserted into non-numeric fields
- * @return string
- * @param string $table name of the table
- * @param array $a list of values
- * @param $mode:
- * LIST_COMMA - comma separated, no field names
- * LIST_AND - ANDed WHERE clause (without the WHERE)
- * LIST_OR - ORed WHERE clause (without the WHERE)
- * LIST_SET - comma separated with field names, like a SET clause
- * LIST_NAMES - comma separated field names
- */
- public function makeListSmart( $table, $a, $mode = LIST_COMMA ) {
- if ( !is_array( $a ) ) {
- throw new DBUnexpectedError( $this, 'Database::makeList called with incorrect parameters' );
- }
-
- $first = true;
- $list = '';
- foreach ( $a as $field => $value ) {
- if ( !$first ) {
- if ( $mode == LIST_AND ) {
- $list .= ' AND ';
- } elseif($mode == LIST_OR) {
- $list .= ' OR ';
- } else {
- $list .= ',';
- }
- } else {
- $first = false;
- }
- if ( ($mode == LIST_AND || $mode == LIST_OR) && is_numeric( $field ) ) {
- $list .= "($value)";
- } elseif ( ($mode == LIST_SET) && is_numeric( $field ) ) {
- $list .= "$value";
- } elseif ( ($mode == LIST_AND || $mode == LIST_OR) && is_array($value) ) {
- if( count( $value ) == 0 ) {
- throw new MWException( __METHOD__.': empty input' );
- } elseif( count( $value ) == 1 ) {
- // Special-case single values, as IN isn't terribly efficient
- // Don't necessarily assume the single key is 0; we don't
- // enforce linear numeric ordering on other arrays here.
- $value = array_values( $value );
- $list .= $field." = ".$this->addQuotes( $value[0] );
- } else {
- $list .= $field." IN (".$this->makeList($value).") ";
- }
- } elseif( is_null($value) ) {
- if ( $mode == LIST_AND || $mode == LIST_OR ) {
- $list .= "$field IS ";
- } elseif ( $mode == LIST_SET ) {
- $list .= "$field = ";
- }
- $list .= 'NULL';
- } else {
- if ( $mode == LIST_AND || $mode == LIST_OR || $mode == LIST_SET ) {
- $list .= "$field = ";
- }
- if ( $mode == LIST_NAMES ) {
- $list .= $value;
- }
- else {
- $list .= $this->addQuotesSmart( $table, $field, $value );
- }
- }
- }
- return $list;
- }
-
/**
* Construct a LIMIT query with optional offset
* This is used for query pages
throw new DBUnexpectedError( $this, "Invalid non-numeric limit passed to limitResult()\n" );
}
if( $offset ) {
- wfDebug("Offset parameter not supported in limitResult()\n");
+ $this->installPrint("Offset parameter not supported in limitResult()\n");
}
// TODO implement proper offset handling
// idea: get all the rows between 0 and offset, advance cursor to offset
*/
public function tableName( $name ) {
# Replace reserved words with better ones
- switch( $name ) {
- case 'user':
- return 'mwuser';
- case 'text':
- return 'pagecontent';
- default:
- return $name;
- }
+// switch( $name ) {
+// case 'user':
+// return 'mwuser';
+// case 'text':
+// return 'pagecontent';
+// default:
+// return $name;
+// }
+ // we want maximum compatibility with MySQL schema
+ return $name;
}
/**
* @return next value in that sequence
*/
public function nextSequenceValue( $seqName ) {
+ // Not using sequences in the primary schema to allow for easy third-party migration scripts
+ // Emulating MySQL behaviour of using NULL to signal that sequences aren't used
+ /*
$safeseq = preg_replace( "/'/", "''", $seqName );
$res = $this->query( "VALUES NEXTVAL FOR $safeseq" );
$row = $this->fetchRow( $res );
$this->mInsertId = $row[0];
$this->freeResult( $res );
return $this->mInsertId;
+ */
+ return NULL;
}
/**
* @return bool Success of insert operation. IGNORE always returns true.
*/
public function insert( $table, $args, $fname = 'DatabaseIbm_db2::insert', $options = array() ) {
- wfDebug("DB2::insert($table)\n");
+ $this->installPrint("DB2::insert($table)\n");
if ( !count( $args ) ) {
return true;
}
-
+ // get database-specific table name (not used)
$table = $this->tableName( $table );
-
- if ( !is_array( $options ) )
- $options = array( $options );
-
- if ( isset( $args[0] ) && is_array( $args[0] ) ) {
- }
- else {
+ // format options as an array
+ if ( !is_array( $options ) ) $options = array( $options );
+ // format args as an array of arrays
+ if ( !( isset( $args[0] ) && is_array( $args[0] ) ) ) {
$args = array($args);
}
+ // prevent insertion of NULL into primary key columns
+ $args = $this->removeNullPrimaryKeys($table, $args);
+
+ // get column names
$keys = array_keys( $args[0] );
+ $key_count = count($keys);
// If IGNORE is set, we use savepoints to emulate mysql's behavior
$ignore = in_array( 'IGNORE', $options ) ? 'mw' : '';
-
- // Cache autocommit value at the start
- $oldautocommit = db2_autocommit($this->mConn);
// If we are not in a transaction, we need to be for savepoint trickery
$didbegin = 0;
}
$sql = "INSERT INTO $table (" . implode( ',', $keys ) . ') VALUES ';
+ switch($key_count) {
+ //case 0 impossible
+ case 1:
+ $sql .= '(?)';
+ break;
+ default:
+ $sql .= '(?' . str_repeat(',?', $key_count-1) . ')';
+ }
+ $stmt = $this->prepare($sql);
if ( !$ignore ) {
$first = true;
foreach ( $args as $row ) {
- if ( $first ) {
- $first = false;
- } else {
- $sql .= ',';
- }
- $sql .= '(' . $this->makeListSmart( $table, $row ) . ')';
+ // insert each row into the database
+ $this->execute($stmt, $row);
}
- $res = (bool)$this->query( $sql, $fname, $ignore );
}
else {
+ // we must have autocommit turned off -- transaction mode on
+ $this->begin();
+
$res = true;
- $origsql = $sql;
foreach ( $args as $row ) {
- $tempsql = $origsql;
- $tempsql .= '(' . $this->makeListSmart( $table, $row ) . ')';
-
if ( $ignore ) {
- db2_exec($this->mConn, "SAVEPOINT $ignore");
+ $overhead = "SAVEPOINT $ignore ON ROLLBACK RETAIN CURSORS";
+ db2_exec($this->mConn, $overhead, $this->mStmtOptions);
}
-
- $tempres = (bool)$this->query( $tempsql, $fname, $ignore );
-
+
+ $this->execute($sql, $row);
if ( $ignore ) {
- $bar = db2_stmt_error();
- if ($bar != false) {
- db2_exec( $this->mConn, "ROLLBACK TO SAVEPOINT $ignore" );
+ $bar = $this->lastError();
+ if (!$bar) {
+ db2_exec( $this->mConn, "ROLLBACK TO SAVEPOINT $ignore", $this->mStmtOptions );
}
else {
- db2_exec( $this->mConn, "RELEASE SAVEPOINT $ignore" );
+ db2_exec( $this->mConn, "RELEASE SAVEPOINT $ignore", $this->mStmtOptions );
$numrowsinserted++;
}
}
-
- // If any of them fail, we fail overall for this function call
- // Note that this will be ignored if IGNORE is set
- if (! $tempres)
- $res = false;
}
}
- if ($didbegin) {
- $this->commit();
- }
- // if autocommit used to be on, it's ok to commit everything
- else if ($oldautocommit)
- {
- $this->commit();
- }
+ // commit either way
+ $this->commit();
if ( $ignore ) {
$olde = error_reporting( $olde );
return $res;
}
+ /**
+ * Given a table name and a hash of columns with values
+ * Removes primary key columns from the hash where the value is NULL
+ *
+ * @param string $table Name of the table
+ * @param array $args Array of hashes of column names with values
+ * @return array Filtered array of hashes
+ */
+ private function removeNullPrimaryKeys($table, $args) {
+ $schema = $this->mSchema;
+ // find out the primary keys
+ $keyres = db2_primary_keys($this->mConn, null, strtoupper($schema), strtoupper($table));
+ $keys = array();
+ for ($row = $this->fetchObject($keyres); $row != null; $row = $this->fetchRow($keyres)) {
+ $keys[] = strtolower($row->column_name);
+ }
+ // remove primary keys
+ foreach ($args as $ai => $row) {
+ foreach ($keys as $ki => $key) {
+ if ($row[$key] == NULL) {
+ unset($row[$key]);
+ }
+ }
+ $args[$ai] = $row;
+ }
+ // return modified hash
+ return $args;
+ }
+
/**
* UPDATE wrapper, takes a condition array and a SET array
*
* more of IGNORE, LOW_PRIORITY
* @return bool
*/
- function update( $table, $values, $conds, $fname = 'Database::update', $options = array() ) {
+ public function update( $table, $values, $conds, $fname = 'Database::update', $options = array() ) {
$table = $this->tableName( $table );
$opts = $this->makeUpdateOptions( $options );
- $sql = "UPDATE $opts $table SET " . $this->makeListSmart( $table, $values, LIST_SET );
+ $sql = "UPDATE $opts $table SET " . $this->makeList( $values, LIST_SET );
if ( $conds != '*' ) {
- $sql .= " WHERE " . $this->makeListSmart( $table, $conds, LIST_AND );
+ $sql .= " WHERE " . $this->makeList( $conds, LIST_AND );
}
return $this->query( $sql, $fname );
}
*
* Use $conds == "*" to delete all rows
*/
- function delete( $table, $conds, $fname = 'Database::delete' ) {
+ public function delete( $table, $conds, $fname = 'Database::delete' ) {
if ( !$conds ) {
throw new DBUnexpectedError( $this, 'Database::delete() called with no conditions' );
}
$table = $this->tableName( $table );
$sql = "DELETE FROM $table";
if ( $conds != '*' ) {
- $sql .= ' WHERE ' . $this->makeListSmart( $table, $conds, LIST_AND );
+ $sql .= ' WHERE ' . $this->makeList( $conds, LIST_AND );
}
return $this->query( $sql, $fname );
}
/**
* Returns the number of rows in the result set
* Has to be called right after the corresponding select query
- * @param Object $res result set
+ * @param object $res result set
* @return int number of rows
*/
public function numRows( $res ) {
/**
* Moves the row pointer of the result set
- * @param Object $res result set
+ * @param object $res result set
* @param int $row row number
* @return success or failure
*/
/**
* Frees memory associated with a statement resource
- * @param Object $res Statement resource to free
+ * @param object $res Statement resource to free
* @return bool success or failure
*/
public function freeResult( $res ) {
/**
* Returns the number of columns in a resource
- * @param Object $res Statement resource
+ * @param object $res Statement resource
* @return Number of fields/columns in resource
*/
public function numFields( $res ) {
/**
* Returns the nth column name
- * @param Object $res Statement resource
+ * @param object $res Statement resource
* @param int $n Index of field or column
* @return string name of nth column
*/
$obj = $this->fetchObject($res2);
$this->mNumRows = $obj->num_rows;
- wfDebug("DatabaseIbm_db2::select: There are $this->mNumRows rows.\n");
+ $this->installPrint("DatabaseIbm_db2::select: There are $this->mNumRows rows.\n");
return $res;
}
case '40001': // sql0911n, Deadlock or timeout, rollback
case '57011': // sql0904n, Resource unavailable, no rollback
case '57033': // sql0913n, Deadlock or timeout, no rollback
- wfDebug("In a deadlock because of SQLSTATE $err");
+ $this->installPrint("In a deadlock because of SQLSTATE $err");
return true;
}
return false;
* @return string ''
* @deprecated
*/
- public function getStatus( $which ) { wfDebug('Not implemented for DB2: getStatus()'); return ''; }
+ public function getStatus( $which="%" ) { $this->installPrint('Not implemented for DB2: getStatus()'); return ''; }
/**
* Not implemented
* TODO
* Not implemented
* @deprecated
*/
- public function setFakeSlaveLag( $lag ) { wfDebug('Not implemented for DB2: setFakeSlaveLag()'); }
+ public function setFakeSlaveLag( $lag ) { $this->installPrint('Not implemented for DB2: setFakeSlaveLag()'); }
/**
* Not implemented
* @deprecated
*/
- public function setFakeMaster( $enabled ) { wfDebug('Not implemented for DB2: setFakeMaster()'); }
+ public function setFakeMaster( $enabled = true ) { $this->installPrint('Not implemented for DB2: setFakeMaster()'); }
/**
* Not implemented
* @return string $sql
* @deprecated
*/
- public function limitResultForUpdate($sql, $num) { return $sql; }
+ public function limitResultForUpdate($sql, $num) { $this->installPrint('Not implemented for DB2: limitResultForUpdate()'); return $sql; }
+
+ /**
+ * Only useful with fake prepare like in base Database class
+ * @return string
+ */
+ public function fillPreparedArg( $matches ) { $this->installPrint('Not useful for DB2: fillPreparedArg()'); return ''; }
######################################
# Reflection
/**
* db2_field_type() wrapper
- * @param Object $res Result of executed statement
+ * @param object $res Result of executed statement
* @param mixed $index number or name of the column
* @return string column type
*/
// TODO
// see SpecialAncientpages
}
+
+ ######################################
+ # Prepared statements
+ ######################################
+
+ /**
+ * Intended to be compatible with the PEAR::DB wrapper functions.
+ * http://pear.php.net/manual/en/package.database.db.intro-execute.php
+ *
+ * ? = scalar value, quoted as necessary
+ * ! = raw SQL bit (a function for instance)
+ * & = filename; reads the file and inserts as a blob
+ * (we don't use this though...)
+ * @param string $sql SQL statement with appropriate markers
+ * @return resource a prepared DB2 SQL statement
+ */
+ public function prepare( $sql, $func = 'DB2::prepare' ) {
+ $stmt = db2_prepare($this->mConn, $sql, $this->mStmtOptions);
+ return $stmt;
+ }
+
+ /**
+ * Frees resources associated with a prepared statement
+ * @return bool success or failure
+ */
+ public function freePrepared( $prepared ) {
+ return db2_free_stmt($prepared);
+ }
+
+ /**
+ * Execute a prepared query with the various arguments
+ * @param string $prepared the prepared sql
+ * @param mixed $args Either an array here, or put scalars as varargs
+ * @return resource Results object
+ */
+ public function execute( $prepared, $args = null ) {
+ if( !is_array( $args ) ) {
+ # Pull the var args
+ $args = func_get_args();
+ array_shift( $args );
+ }
+ $res = db2_execute($prepared, $args);
+ return $res;
+ }
+
+ /**
+ * Prepare & execute an SQL statement, quoting and inserting arguments
+ * in the appropriate places.
+ * @param $query String
+ * @param $args ...
+ */
+ public function safeQuery( $query, $args = null ) {
+ // copied verbatim from Database.php
+ $prepared = $this->prepare( $query, 'DB2::safeQuery' );
+ if( !is_array( $args ) ) {
+ # Pull the var args
+ $args = func_get_args();
+ array_shift( $args );
+ }
+ $retval = $this->execute( $prepared, $args );
+ $this->freePrepared( $prepared );
+ return $retval;
+ }
+
+ /**
+ * For faking prepared SQL statements on DBs that don't support
+ * it directly.
+ * @param resource $preparedQuery String: a 'preparable' SQL statement
+ * @param array $args Array of arguments to fill it with
+ * @return string executable statement
+ */
+ public function fillPrepared( $preparedQuery, $args ) {
+ reset( $args );
+ $this->preparedArgs =& $args;
+
+ foreach ($args as $i => $arg) {
+ db2_bind_param($preparedQuery, $i+1, $args[$i]);
+ }
+
+ return $preparedQuery;
+ }
+
+ /**
+ * Switches module between regular and install modes
+ */
+ public function setMode($mode) {
+ $old = $this->mMode;
+ $this->mMode = $mode;
+ return $old;
+ }
+
+ /**
+ * Bitwise negation of a column or value in SQL
+ * Same as (~field) in C
+ * @param string $field
+ * @return string
+ */
+ function bitNot($field) {
+ //expecting bit-fields smaller than 4bytes
+ return 'BITNOT('.$bitField.')';
+ }
+
+ /**
+ * Bitwise AND of two columns or values in SQL
+ * Same as (fieldLeft & fieldRight) in C
+ * @param string $fieldLeft
+ * @param string $fieldRight
+ * @return string
+ */
+ function bitAnd($fieldLeft, $fieldRight) {
+ return 'BITAND('.$fieldLeft.', '.$fieldRight.')';
+ }
+
+ /**
+ * Bitwise OR of two columns or values in SQL
+ * Same as (fieldLeft | fieldRight) in C
+ * @param string $fieldLeft
+ * @param string $fieldRight
+ * @return string
+ */
+ function bitOr($fieldLeft, $fieldRight) {
+ return 'BITOR('.$fieldLeft.', '.$fieldRight.')';
+ }
}
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