1076 lines
28 KiB
PHP
1076 lines
28 KiB
PHP
<?php
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/**
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* @ingroup Database
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* @file
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*/
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/**
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* This is the Oracle database abstraction layer.
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* @ingroup Database
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*/
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class ORABlob {
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var $mData;
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function __construct($data) {
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$this->mData = $data;
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}
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function getData() {
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return $this->mData;
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}
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}
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/**
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* The oci8 extension is fairly weak and doesn't support oci_num_rows, among
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* other things. We use a wrapper class to handle that and other
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* Oracle-specific bits, like converting column names back to lowercase.
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* @ingroup Database
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*/
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class ORAResult {
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private $rows;
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private $cursor;
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private $stmt;
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private $nrows;
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private $unique;
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function __construct(&$db, $stmt, $unique = false) {
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$this->db =& $db;
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if (($this->nrows = oci_fetch_all($stmt, $this->rows, 0, -1, OCI_FETCHSTATEMENT_BY_ROW | OCI_NUM)) === false) {
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$e = oci_error($stmt);
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$db->reportQueryError($e['message'], $e['code'], '', __FUNCTION__);
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return;
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}
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if ($unique) {
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$this->rows = array_unique($this->rows);
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$this->nrows = count($this->rows);
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}
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$this->cursor = 0;
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$this->stmt = $stmt;
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}
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public function free() {
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oci_free_statement($this->stmt);
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}
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public function seek($row) {
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$this->cursor = min($row, $this->nrows);
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}
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public function numRows() {
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return $this->nrows;
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}
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public function numFields() {
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return oci_num_fields($this->stmt);
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}
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public function fetchObject() {
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if ($this->cursor >= $this->nrows)
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return false;
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$row = $this->rows[$this->cursor++];
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$ret = new stdClass();
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foreach ($row as $k => $v) {
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$lc = strtolower(oci_field_name($this->stmt, $k + 1));
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$ret->$lc = $v;
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}
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return $ret;
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}
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public function fetchRow() {
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if ($this->cursor >= $this->nrows)
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return false;
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$row = $this->rows[$this->cursor++];
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$ret = array();
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foreach ($row as $k => $v) {
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$lc = strtolower(oci_field_name($this->stmt, $k + 1));
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$ret[$lc] = $v;
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$ret[$k] = $v;
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}
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return $ret;
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}
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}
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/**
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* Utility class.
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* @ingroup Database
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*/
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class ORAField {
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private $name, $tablename, $default, $max_length, $nullable,
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$is_pk, $is_unique, $is_multiple, $is_key, $type;
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function __construct($info) {
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$this->name = $info['column_name'];
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$this->tablename = $info['table_name'];
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$this->default = $info['data_default'];
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$this->max_length = $info['data_length'];
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$this->nullable = $info['not_null'];
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$this->is_pk = isset($info['prim']) && $info['prim'] == 1 ? 1 : 0;
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$this->is_unique = isset($info['uniq']) && $info['uniq'] == 1 ? 1 : 0;
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$this->is_multiple = isset($info['nonuniq']) && $info['nonuniq'] == 1 ? 1 : 0;
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$this->is_key = ($this->is_pk || $this->is_unique || $this->is_multiple);
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$this->type = $info['data_type'];
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}
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function name() {
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return $this->name;
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}
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function tableName() {
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return $this->tablename;
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}
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function defaultValue() {
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return $this->default;
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}
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function maxLength() {
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return $this->max_length;
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}
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function nullable() {
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return $this->nullable;
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}
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function isKey() {
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return $this->is_key;
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}
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function isMultipleKey() {
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return $this->is_multiple;
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}
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function type() {
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return $this->type;
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}
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}
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/**
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* @ingroup Database
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*/
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class DatabaseOracle extends DatabaseBase {
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var $mInsertId = NULL;
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var $mLastResult = NULL;
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var $numeric_version = NULL;
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var $lastResult = null;
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var $cursor = 0;
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var $mAffectedRows;
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var $ignore_DUP_VAL_ON_INDEX = false;
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function DatabaseOracle($server = false, $user = false, $password = false, $dbName = false,
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$failFunction = false, $flags = 0, $tablePrefix = 'get from global' )
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{
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$tablePrefix = $tablePrefix == 'get from global' ? $tablePrefix : strtoupper($tablePrefix);
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parent::__construct($server, $user, $password, $dbName, $failFunction, $flags, $tablePrefix);
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wfRunHooks( 'DatabaseOraclePostInit', array(&$this));
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}
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function cascadingDeletes() {
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return true;
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}
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function cleanupTriggers() {
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return true;
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}
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function strictIPs() {
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return true;
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}
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function realTimestamps() {
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return true;
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}
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function implicitGroupby() {
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return false;
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}
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function implicitOrderby() {
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return false;
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}
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function searchableIPs() {
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return true;
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}
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static function newFromParams( $server = false, $user = false, $password = false, $dbName = false,
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$failFunction = false, $flags = 0)
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{
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return new DatabaseOracle( $server, $user, $password, $dbName, $failFunction, $flags );
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}
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/**
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* Usually aborts on failure
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* If the failFunction is set to a non-zero integer, returns success
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*/
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function open( $server, $user, $password, $dbName ) {
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if ( !function_exists( 'oci_connect' ) ) {
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throw new DBConnectionError( $this, "Oracle functions missing, have you compiled PHP with the --with-oci8 option?\n (Note: if you recently installed PHP, you may need to restart your webserver and database)\n" );
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}
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putenv("NLS_LANG=AMERICAN_AMERICA.AL32UTF8");
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$this->close();
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$this->mServer = $server;
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$this->mUser = $user;
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$this->mPassword = $password;
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$this->mDBname = $dbName;
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if (!strlen($user)) { ## e.g. the class is being loaded
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return;
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}
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//error_reporting( E_ALL ); //whoever had this bright idea
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$session_mode = $this->mFlags & DBO_SYSDBA ? OCI_SYSDBA : OCI_DEFAULT;
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if ( $this->mFlags & DBO_DEFAULT )
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$this->mConn = oci_new_connect($user, $password, $dbName, null, $session_mode);
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else
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$this->mConn = oci_connect($user, $password, $dbName, null, $session_mode);
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if ($this->mConn == false) {
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wfDebug("DB connection error\n");
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wfDebug("Server: $server, Database: $dbName, User: $user, Password: " . substr( $password, 0, 3 ) . "...\n");
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wfDebug($this->lastError()."\n");
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return false;
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}
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$this->mOpened = true;
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#removed putenv calls because they interfere with the system globaly
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$this->doQuery('ALTER SESSION SET NLS_TIMESTAMP_FORMAT=\'DD-MM-YYYY HH24:MI:SS.FF6\'');
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$this->doQuery('ALTER SESSION SET NLS_TIMESTAMP_TZ_FORMAT=\'DD-MM-YYYY HH24:MI:SS.FF6\'');
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return $this->mConn;
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}
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/**
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* Closes a database connection, if it is open
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* Returns success, true if already closed
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*/
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function close() {
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$this->mOpened = false;
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if ( $this->mConn ) {
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return oci_close( $this->mConn );
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} else {
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return true;
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}
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}
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function execFlags() {
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return $this->mTrxLevel ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;
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}
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function doQuery($sql) {
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wfDebug("SQL: [$sql]\n");
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if (!mb_check_encoding($sql)) {
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throw new MWException("SQL encoding is invalid");
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}
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//handle some oracle specifics
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//remove AS column/table/subquery namings
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$sql = preg_replace('/ as /i', ' ', $sql);
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// Oracle has issues with UNION clause if the statement includes LOB fields
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// So we do a UNION ALL and then filter the results array with array_unique
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$union_unique = (preg_match('/\/\* UNION_UNIQUE \*\/ /', $sql) != 0);
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//EXPLAIN syntax in Oracle is EXPLAIN PLAN FOR and it return nothing
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//you have to select data from plan table after explain
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$explain_id = date('dmYHis');
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$sql = preg_replace('/^EXPLAIN /', 'EXPLAIN PLAN SET STATEMENT_ID = \''.$explain_id.'\' FOR', $sql, 1, $explain_count);
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if (($this->mLastResult = $stmt = oci_parse($this->mConn, $sql)) === false) {
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$e = oci_error($this->mConn);
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$this->reportQueryError($e['message'], $e['code'], $sql, __FUNCTION__);
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}
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$olderr = error_reporting(E_ERROR);
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if (oci_execute($stmt, $this->execFlags()) == false) {
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$e = oci_error($stmt);
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if (!$this->ignore_DUP_VAL_ON_INDEX || $e['code'] != '1')
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$this->reportQueryError($e['message'], $e['code'], $sql, __FUNCTION__);
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}
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error_reporting($olderr);
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if ($explain_count > 0) {
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return $this->doQuery('SELECT id, cardinality "ROWS" FROM plan_table WHERE statement_id = \''.$explain_id.'\'');
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} elseif (oci_statement_type($stmt) == "SELECT") {
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return new ORAResult($this, $stmt, $union_unique);
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} else {
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$this->mAffectedRows = oci_num_rows($stmt);
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return true;
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}
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}
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function queryIgnore($sql, $fname = '') {
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return $this->query($sql, $fname, true);
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}
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function freeResult($res) {
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if ( $res instanceof ORAResult ) {
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$res->free();
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} else {
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$res->result->free();
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}
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}
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function fetchObject($res) {
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if ( $res instanceof ORAResult ) {
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return $res->numRows();
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} else {
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return $res->result->fetchObject();
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}
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}
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function fetchRow($res) {
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if ( $res instanceof ORAResult ) {
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return $res->fetchRow();
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} else {
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return $res->result->fetchRow();
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}
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}
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function numRows($res) {
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if ( $res instanceof ORAResult ) {
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return $res->numRows();
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} else {
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return $res->result->numRows();
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}
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}
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function numFields($res) {
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if ( $res instanceof ORAResult ) {
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return $res->numFields();
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} else {
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return $res->result->numFields();
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}
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}
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function fieldName($stmt, $n) {
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return oci_field_name($stmt, $n);
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}
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/**
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* This must be called after nextSequenceVal
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*/
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function insertId() {
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return $this->mInsertId;
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}
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function dataSeek($res, $row) {
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if ( $res instanceof ORAResult ) {
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$res->seek($row);
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} else {
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$res->result->seek($row);
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}
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}
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function lastError() {
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if ($this->mConn === false)
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$e = oci_error();
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else
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$e = oci_error($this->mConn);
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return $e['message'];
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}
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function lastErrno() {
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if ($this->mConn === false)
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$e = oci_error();
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else
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$e = oci_error($this->mConn);
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return $e['code'];
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}
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function affectedRows() {
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return $this->mAffectedRows;
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}
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/**
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* Returns information about an index
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* If errors are explicitly ignored, returns NULL on failure
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*/
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function indexInfo( $table, $index, $fname = 'DatabaseOracle::indexExists' ) {
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return false;
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}
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function indexUnique ($table, $index, $fname = 'DatabaseOracle::indexUnique' ) {
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return false;
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}
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function insert( $table, $a, $fname = 'DatabaseOracle::insert', $options = array() ) {
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if ( !count( $a ) )
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return true;
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if (!is_array($options))
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$options = array($options);
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if (in_array('IGNORE', $options))
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$this->ignore_DUP_VAL_ON_INDEX = true;
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if (!is_array(reset($a))) {
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$a = array($a);
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}
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foreach ($a as $row) {
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$this->insertOneRow($table, $row, $fname);
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}
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$retVal = true;
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if (in_array('IGNORE', $options))
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$this->ignore_DUP_VAL_ON_INDEX = false;
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return $retVal;
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}
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function insertOneRow($table, $row, $fname) {
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global $wgLang;
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// "INSERT INTO tables (a, b, c)"
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$sql = "INSERT INTO " . $this->tableName($table) . " (" . join(',', array_keys($row)) . ')';
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$sql .= " VALUES (";
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// for each value, append ":key"
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$first = true;
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foreach ($row as $col => $val) {
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if ($first)
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$sql .= ':'.$col;
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else
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$sql.= ', :'.$col;
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$first = false;
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}
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$sql .= ')';
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$stmt = oci_parse($this->mConn, $sql);
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foreach ($row as $col => $val) {
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if (!is_object($val)) {
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if (oci_bind_by_name($stmt, ":$col", $row[$col]) === false)
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$this->reportQueryError($this->lastErrno(), $this->lastError(), $sql, __METHOD__);
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}
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}
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$stmt = oci_parse($this->mConn, $sql);
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foreach ($row as $col => $val) {
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$col_type=$this->fieldInfo($this->tableName($table), $col)->type();
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if ($col_type != 'BLOB' && $col_type != 'CLOB') {
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if (is_object($val))
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$val = $val->getData();
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if (preg_match('/^timestamp.*/i', $col_type) == 1 && strtolower($val) == 'infinity')
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$val = '31-12-2030 12:00:00.000000';
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if (oci_bind_by_name($stmt, ":$col", $wgLang->checkTitleEncoding($val)) === false)
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$this->reportQueryError($this->lastErrno(), $this->lastError(), $sql, __METHOD__);
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} else {
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if (($lob[$col] = oci_new_descriptor($this->mConn, OCI_D_LOB)) === false) {
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$e = oci_error($stmt);
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throw new DBUnexpectedError($this, "Cannot create LOB descriptor: " . $e['message']);
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}
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if (is_object($val)) {
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$lob[$col]->writeTemporary($val->getData());
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oci_bind_by_name($stmt, ":$col", $lob[$col], -1, SQLT_BLOB);
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} else {
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$lob[$col]->writeTemporary($val);
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oci_bind_by_name($stmt, ":$col", $lob[$col], -1, OCI_B_CLOB);
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}
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}
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}
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$olderr = error_reporting(E_ERROR);
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if (oci_execute($stmt, OCI_DEFAULT) === false) {
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$e = oci_error($stmt);
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if (!$this->ignore_DUP_VAL_ON_INDEX || $e['code'] != '1')
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$this->reportQueryError($e['message'], $e['code'], $sql, __METHOD__);
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else
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$this->mAffectedRows = oci_num_rows($stmt);
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} else
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$this->mAffectedRows = oci_num_rows($stmt);
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error_reporting($olderr);
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if (isset($lob)){
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foreach ($lob as $lob_i => $lob_v) {
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$lob_v->free();
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}
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}
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if (!$this->mTrxLevel)
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oci_commit($this->mConn);
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oci_free_statement($stmt);
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}
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function insertSelect( $destTable, $srcTable, $varMap, $conds, $fname = 'DatabaseOracle::insertSelect',
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$insertOptions = array(), $selectOptions = array() )
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{
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$destTable = $this->tableName( $destTable );
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if( !is_array( $selectOptions ) ) {
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$selectOptions = array( $selectOptions );
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}
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list( $startOpts, $useIndex, $tailOpts ) = $this->makeSelectOptions( $selectOptions );
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if( is_array( $srcTable ) ) {
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$srcTable = implode( ',', array_map( array( &$this, 'tableName' ), $srcTable ) );
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} else {
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$srcTable = $this->tableName( $srcTable );
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}
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$sql = "INSERT INTO $destTable (" . implode( ',', array_keys( $varMap ) ) . ')' .
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" SELECT $startOpts " . implode( ',', $varMap ) .
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" FROM $srcTable $useIndex ";
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if ( $conds != '*' ) {
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$sql .= ' WHERE ' . $this->makeList( $conds, LIST_AND );
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}
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$sql .= " $tailOpts";
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if (in_array('IGNORE', $insertOptions))
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$this->ignore_DUP_VAL_ON_INDEX = true;
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$retval = $this->query( $sql, $fname );
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if (in_array('IGNORE', $insertOptions))
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$this->ignore_DUP_VAL_ON_INDEX = false;
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|
|
return $retval;
|
|
}
|
|
|
|
function tableName( $name ) {
|
|
global $wgSharedDB, $wgSharedPrefix, $wgSharedTables;
|
|
/*
|
|
Replace reserved words with better ones
|
|
Useing uppercase, because that's the only way oracle can handle
|
|
quoted tablenames
|
|
*/
|
|
switch( $name ) {
|
|
case 'user':
|
|
$name = 'MWUSER'; break;
|
|
case 'text':
|
|
$name = 'PAGECONTENT'; break;
|
|
}
|
|
|
|
/*
|
|
The rest of procedure is equal to generic Databse class
|
|
except for the quoting style
|
|
*/
|
|
if ( $name[0] == '"' && substr( $name, -1, 1 ) == '"' ) return $name;
|
|
|
|
if( preg_match( '/(^|\s)(DISTINCT|JOIN|ON|AS)(\s|$)/i', $name ) !== 0 ) return $name;
|
|
$dbDetails = array_reverse( explode( '.', $name, 2 ) );
|
|
if( isset( $dbDetails[1] ) ) @list( $table, $database ) = $dbDetails;
|
|
else @list( $table ) = $dbDetails;
|
|
|
|
$prefix = $this->mTablePrefix;
|
|
|
|
if( isset($database) ) $table = ( $table[0] == '`' ? $table : "`{$table}`" );
|
|
|
|
if( !isset( $database )
|
|
&& isset( $wgSharedDB )
|
|
&& $table[0] != '"'
|
|
&& isset( $wgSharedTables )
|
|
&& is_array( $wgSharedTables )
|
|
&& in_array( $table, $wgSharedTables ) ) {
|
|
$database = $wgSharedDB;
|
|
$prefix = isset( $wgSharedPrefix ) ? $wgSharedPrefix : $prefix;
|
|
}
|
|
|
|
if( isset($database) ) $database = ( $database[0] == '"' ? $database : "\"{$database}\"" );
|
|
$table = ( $table[0] == '"' ? $table : "\"{$prefix}{$table}\"" );
|
|
|
|
$tableName = ( isset($database) ? "{$database}.{$table}" : "{$table}" );
|
|
|
|
return strtoupper($tableName);
|
|
}
|
|
|
|
/**
|
|
* Return the next in a sequence, save the value for retrieval via insertId()
|
|
*/
|
|
function nextSequenceValue($seqName) {
|
|
$res = $this->query("SELECT $seqName.nextval FROM dual");
|
|
$row = $this->fetchRow($res);
|
|
$this->mInsertId = $row[0];
|
|
$this->freeResult($res);
|
|
return $this->mInsertId;
|
|
}
|
|
|
|
# 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
|
|
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);
|
|
}
|
|
|
|
foreach( $rows as $row ) {
|
|
# Delete rows which collide
|
|
if ( $uniqueIndexes ) {
|
|
$sql = "DELETE FROM $table WHERE ";
|
|
$first = true;
|
|
foreach ( $uniqueIndexes as $index ) {
|
|
if ( $first ) {
|
|
$first = false;
|
|
$sql .= "(";
|
|
} else {
|
|
$sql .= ') OR (';
|
|
}
|
|
if ( is_array( $index ) ) {
|
|
$first2 = true;
|
|
foreach ( $index as $col ) {
|
|
if ( $first2 ) {
|
|
$first2 = false;
|
|
} else {
|
|
$sql .= ' AND ';
|
|
}
|
|
$sql .= $col.'=' . $this->addQuotes( $row[$col] );
|
|
}
|
|
} else {
|
|
$sql .= $index.'=' . $this->addQuotes( $row[$index] );
|
|
}
|
|
}
|
|
$sql .= ')';
|
|
$this->query( $sql, $fname );
|
|
}
|
|
|
|
# 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 ) {
|
|
$table = $this->tableName( $table );
|
|
$sql = "SELECT t.typname as ftype,a.atttypmod as size
|
|
FROM pg_class c, pg_attribute a, pg_type t
|
|
WHERE relname='$table' AND a.attrelid=c.oid AND
|
|
a.atttypid=t.oid and a.attname='$field'";
|
|
$res =$this->query($sql);
|
|
$row=$this->fetchObject($res);
|
|
if ($row->ftype=="varchar") {
|
|
$size=$row->size-4;
|
|
} else {
|
|
$size=$row->size;
|
|
}
|
|
$this->freeResult( $res );
|
|
return $size;
|
|
}
|
|
|
|
function limitResult($sql, $limit, $offset) {
|
|
if ($offset === false)
|
|
$offset = 0;
|
|
return "SELECT * FROM ($sql) WHERE rownum >= (1 + $offset) AND rownum < (1 + $limit + $offset)";
|
|
}
|
|
|
|
|
|
function unionQueries($sqls, $all = false) {
|
|
$glue = ' UNION ALL ';
|
|
return 'SELECT * '.($all?'':'/* UNION_UNIQUE */ ').'FROM ('.implode( $glue, $sqls ).')' ;
|
|
}
|
|
|
|
function wasDeadlock() {
|
|
return $this->lastErrno() == 'OCI-00060';
|
|
}
|
|
|
|
function timestamp($ts = 0) {
|
|
return wfTimestamp(TS_ORACLE, $ts);
|
|
}
|
|
|
|
/**
|
|
* Return aggregated value function call
|
|
*/
|
|
function aggregateValue ($valuedata,$valuename='value') {
|
|
return $valuedata;
|
|
}
|
|
|
|
function reportQueryError($error, $errno, $sql, $fname, $tempIgnore = false) {
|
|
# Ignore errors during error handling to avoid infinite
|
|
# recursion
|
|
$ignore = $this->ignoreErrors(true);
|
|
++$this->mErrorCount;
|
|
|
|
if ($ignore || $tempIgnore) {
|
|
//echo "error ignored! query = [$sql]\n";
|
|
wfDebug("SQL ERROR (ignored): $error\n");
|
|
$this->ignoreErrors( $ignore );
|
|
}
|
|
else {
|
|
//echo "error!\n";
|
|
$message = "A database error has occurred\n" .
|
|
"Query: $sql\n" .
|
|
"Function: $fname\n" .
|
|
"Error: $errno $error\n";
|
|
throw new DBUnexpectedError($this, $message);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return string wikitext of a link to the server software's web site
|
|
*/
|
|
function getSoftwareLink() {
|
|
return "[http://www.oracle.com/ Oracle]";
|
|
}
|
|
|
|
/**
|
|
* @return string Version information from the database
|
|
*/
|
|
function getServerVersion() {
|
|
return oci_server_version($this->mConn);
|
|
}
|
|
|
|
/**
|
|
* Query whether a given table exists (in the given schema, or the default mw one if not given)
|
|
*/
|
|
function tableExists($table) {
|
|
$SQL = "SELECT 1 FROM user_tables WHERE table_name='$table'";
|
|
$res = $this->doQuery($SQL);
|
|
if ($res) {
|
|
$count = $res->numRows();
|
|
$res->free();
|
|
} else {
|
|
$count = 0;
|
|
}
|
|
return $count;
|
|
}
|
|
|
|
/**
|
|
* Query whether a given column exists in the mediawiki schema
|
|
* based on prebuilt table to simulate MySQL field info and keep query speed minimal
|
|
*/
|
|
function fieldExists( $table, $field ) {
|
|
if (!isset($this->fieldInfo_stmt))
|
|
$this->fieldInfo_stmt = oci_parse($this->mConn, 'SELECT * FROM wiki_field_info_full WHERE table_name = upper(:tab) and column_name = UPPER(:col)');
|
|
|
|
oci_bind_by_name($this->fieldInfo_stmt, ':tab', trim($table, '"'));
|
|
oci_bind_by_name($this->fieldInfo_stmt, ':col', $field);
|
|
|
|
if (oci_execute($this->fieldInfo_stmt, OCI_DEFAULT) === false) {
|
|
$e = oci_error($this->fieldInfo_stmt);
|
|
$this->reportQueryError($e['message'], $e['code'], 'fieldInfo QUERY', __METHOD__);
|
|
return false;
|
|
}
|
|
$res = new ORAResult($this,$this->fieldInfo_stmt);
|
|
return $res->numRows() != 0;
|
|
}
|
|
|
|
function fieldInfo( $table, $field ) {
|
|
if (!isset($this->fieldInfo_stmt))
|
|
$this->fieldInfo_stmt = oci_parse($this->mConn, 'SELECT * FROM wiki_field_info_full WHERE table_name = upper(:tab) and column_name = UPPER(:col)');
|
|
|
|
oci_bind_by_name($this->fieldInfo_stmt, ':tab', trim($table, '"'));
|
|
oci_bind_by_name($this->fieldInfo_stmt, ':col', $field);
|
|
|
|
if (oci_execute($this->fieldInfo_stmt, OCI_DEFAULT) === false) {
|
|
$e = oci_error($this->fieldInfo_stmt);
|
|
$this->reportQueryError($e['message'], $e['code'], 'fieldInfo QUERY', __METHOD__);
|
|
return false;
|
|
}
|
|
$res = new ORAResult($this,$this->fieldInfo_stmt);
|
|
return new ORAField($res->fetchRow());
|
|
}
|
|
|
|
function begin( $fname = '' ) {
|
|
$this->mTrxLevel = 1;
|
|
}
|
|
function immediateCommit( $fname = '' ) {
|
|
return true;
|
|
}
|
|
function commit( $fname = '' ) {
|
|
oci_commit($this->mConn);
|
|
$this->mTrxLevel = 0;
|
|
}
|
|
|
|
/* Not even sure why this is used in the main codebase... */
|
|
function limitResultForUpdate($sql, $num) {
|
|
return $sql;
|
|
}
|
|
|
|
/* defines must comply with ^define\s*([^\s=]*)\s*=\s?'\{\$([^\}]*)\}'; */
|
|
function sourceStream( $fp, $lineCallback = false, $resultCallback = false ) {
|
|
$cmd = "";
|
|
$done = false;
|
|
$dollarquote = false;
|
|
|
|
$replacements = array();
|
|
|
|
while ( ! feof( $fp ) ) {
|
|
if ( $lineCallback ) {
|
|
call_user_func( $lineCallback );
|
|
}
|
|
$line = trim( fgets( $fp, 1024 ) );
|
|
$sl = strlen( $line ) - 1;
|
|
|
|
if ( $sl < 0 ) { continue; }
|
|
if ( '-' == $line{0} && '-' == $line{1} ) { continue; }
|
|
|
|
// Allow dollar quoting for function declarations
|
|
if (substr($line,0,8) == '/*$mw$*/') {
|
|
if ($dollarquote) {
|
|
$dollarquote = false;
|
|
$done = true;
|
|
}
|
|
else {
|
|
$dollarquote = true;
|
|
}
|
|
}
|
|
else if (!$dollarquote) {
|
|
if ( ';' == $line{$sl} && ($sl < 2 || ';' != $line{$sl - 1})) {
|
|
$done = true;
|
|
$line = substr( $line, 0, $sl );
|
|
}
|
|
}
|
|
|
|
if ( '' != $cmd ) { $cmd .= ' '; }
|
|
$cmd .= "$line\n";
|
|
|
|
if ( $done ) {
|
|
$cmd = str_replace(';;', ";", $cmd);
|
|
if (strtolower(substr($cmd, 0, 6)) == 'define' ) {
|
|
if (preg_match('/^define\s*([^\s=]*)\s*=\s*\'\{\$([^\}]*)\}\'/', $cmd, $defines)) {
|
|
$replacements[$defines[2]] = $defines[1];
|
|
}
|
|
} else {
|
|
foreach ( $replacements as $mwVar=>$scVar ) {
|
|
$cmd = str_replace( '&' . $scVar . '.', '{$'.$mwVar.'}', $cmd );
|
|
}
|
|
|
|
$cmd = $this->replaceVars( $cmd );
|
|
$res = $this->query( $cmd, __METHOD__ );
|
|
if ( $resultCallback ) {
|
|
call_user_func( $resultCallback, $res, $this );
|
|
}
|
|
|
|
if ( false === $res ) {
|
|
$err = $this->lastError();
|
|
return "Query \"{$cmd}\" failed with error code \"$err\".\n";
|
|
}
|
|
}
|
|
|
|
$cmd = '';
|
|
$done = false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function setup_database() {
|
|
global $wgVersion, $wgDBmwschema, $wgDBts2schema, $wgDBport, $wgDBuser;
|
|
|
|
echo "<li>Creating DB objects</li>\n";
|
|
$res = dbsource( "../maintenance/ora/tables.sql", $this);
|
|
|
|
// Avoid the non-standard "REPLACE INTO" syntax
|
|
echo "<li>Populating table interwiki</li>\n";
|
|
$f = fopen( "../maintenance/interwiki.sql", 'r' );
|
|
if ($f == false ) {
|
|
dieout( "<li>Could not find the interwiki.sql file</li>");
|
|
}
|
|
|
|
//do it like the postgres :D
|
|
$SQL = "INSERT INTO interwiki(iw_prefix,iw_url,iw_local) VALUES ";
|
|
while ( ! feof( $f ) ) {
|
|
$line = fgets($f,1024);
|
|
$matches = array();
|
|
if (!preg_match('/^\s*(\(.+?),(\d)\)/', $line, $matches)) {
|
|
continue;
|
|
}
|
|
$this->query("$SQL $matches[1],$matches[2])");
|
|
}
|
|
|
|
echo "<li>Table interwiki successfully populated</li>\n";
|
|
}
|
|
|
|
function strencode($s) {
|
|
return str_replace("'", "''", $s);
|
|
}
|
|
|
|
function encodeBlob($b) {
|
|
return new ORABlob($b);
|
|
}
|
|
function decodeBlob($b) {
|
|
return $b; //return $b->load();
|
|
}
|
|
|
|
function addQuotes( $s ) {
|
|
global $wgLang;
|
|
if (isset($wgLang->mLoaded) && $wgLang->mLoaded)
|
|
$s = $wgLang->checkTitleEncoding($s);
|
|
return "'" . $this->strencode($s) . "'";
|
|
}
|
|
|
|
function quote_ident( $s ) {
|
|
return $s;
|
|
}
|
|
|
|
function selectRow( $table, $vars, $conds, $fname = 'DatabaseOracle::selectRow', $options = array(), $join_conds = array() ) {
|
|
if (is_array($table))
|
|
foreach ($table as $tab)
|
|
$tab = $this->tableName($tab);
|
|
else
|
|
$table = $this->tableName($table);
|
|
return parent::selectRow($table, $vars, $conds, $fname, $options, $join_conds);
|
|
}
|
|
|
|
/**
|
|
* Returns an optional USE INDEX clause to go after the table, and a
|
|
* string to go at the end of the query
|
|
*
|
|
* @private
|
|
*
|
|
* @param $options Array: an associative array of options to be turned into
|
|
* an SQL query, valid keys are listed in the function.
|
|
* @return array
|
|
*/
|
|
function makeSelectOptions( $options ) {
|
|
$preLimitTail = $postLimitTail = '';
|
|
$startOpts = '';
|
|
|
|
$noKeyOptions = array();
|
|
foreach ( $options as $key => $option ) {
|
|
if ( is_numeric( $key ) ) {
|
|
$noKeyOptions[$option] = true;
|
|
}
|
|
}
|
|
|
|
if ( isset( $options['GROUP BY'] ) ) $preLimitTail .= " GROUP BY {$options['GROUP BY']}";
|
|
if ( isset( $options['ORDER BY'] ) ) $preLimitTail .= " ORDER BY {$options['ORDER BY']}";
|
|
|
|
#if ( isset( $noKeyOptions['FOR UPDATE'] ) ) $tailOpts .= ' FOR UPDATE';
|
|
#if ( isset( $noKeyOptions['LOCK IN SHARE MODE'] ) ) $tailOpts .= ' LOCK IN SHARE MODE';
|
|
if ( isset( $noKeyOptions['DISTINCT'] ) || isset( $noKeyOptions['DISTINCTROW'] ) ) $startOpts .= 'DISTINCT';
|
|
|
|
if ( isset( $options['USE INDEX'] ) && ! is_array( $options['USE INDEX'] ) ) {
|
|
$useIndex = $this->useIndexClause( $options['USE INDEX'] );
|
|
} else {
|
|
$useIndex = '';
|
|
}
|
|
|
|
return array( $startOpts, $useIndex, $preLimitTail, $postLimitTail );
|
|
}
|
|
|
|
/* redundand ... will remove after confirming bitwise operations functionality
|
|
public function makeList( $a, $mode = LIST_COMMA ) {
|
|
if ( !is_array( $a ) ) {
|
|
throw new DBUnexpectedError( $this, 'DatabaseOracle::makeList called with incorrect parameters' );
|
|
}
|
|
$a2 = array();
|
|
foreach ($a as $key => $value) {
|
|
if (strpos($key, ' & ') !== FALSE)
|
|
$a2[preg_replace('/(.*)\s&\s(.*)/', 'BITAND($1, $2)', $key)] = $value;
|
|
elseif (strpos($key, ' | ') !== FALSE)
|
|
$a2[preg_replace('/(.*)\s|\s(.*)/', 'BITOR($1, $2)', $key)] = $value;
|
|
elseif (!is_array($value)) {
|
|
if (strpos($value, ' = ') !== FALSE) {
|
|
if (strpos($value, ' & ') !== FALSE)
|
|
$a2[$key] = preg_replace('/(.*)\s&\s(.*?)\s=\s(.*)/', 'BITAND($1, $2) = $3', $value);
|
|
elseif (strpos($value, ' | ') !== FALSE)
|
|
$a2[$key] = preg_replace('/(.*)\s|\s(.*?)\s=\s(.*)/', 'BITOR($1, $2) = $3', $value);
|
|
else $a2[$key] = $value;
|
|
}
|
|
elseif (strpos($value, ' & ') !== FALSE)
|
|
$a2[$key] = preg_replace('/(.*)\s&\s(.*)/', 'BITAND($1, $2)', $value);
|
|
elseif (strpos($value, ' | ') !== FALSE)
|
|
$a2[$key] = preg_replace('/(.*)\s|\s(.*)/', 'BITOR($1, $2)', $value);
|
|
else
|
|
$a2[$key] = $value;
|
|
}
|
|
else
|
|
$a2[$key] = $value;
|
|
}
|
|
|
|
return parent::makeList($a2, $mode);
|
|
}
|
|
*/
|
|
|
|
function bitNot($field) {
|
|
//expecting bit-fields smaller than 4bytes
|
|
return 'BITNOT('.$bitField.')';
|
|
}
|
|
|
|
function bitAnd($fieldLeft, $fieldRight) {
|
|
return 'BITAND('.$fieldLeft.', '.$fieldRight.')';
|
|
}
|
|
|
|
function bitOr($fieldLeft, $fieldRight) {
|
|
return 'BITOR('.$fieldLeft.', '.$fieldRight.')';
|
|
}
|
|
|
|
/**
|
|
* How lagged is this slave?
|
|
*
|
|
* @return int
|
|
*/
|
|
public function getLag() {
|
|
# Not implemented for Oracle
|
|
return 0;
|
|
}
|
|
|
|
function setFakeSlaveLag( $lag ) {}
|
|
function setFakeMaster( $enabled = true ) {}
|
|
|
|
function getDBname() {
|
|
return $this->mDBname;
|
|
}
|
|
|
|
function getServer() {
|
|
return $this->mServer;
|
|
}
|
|
|
|
public function replaceVars( $ins ) {
|
|
$varnames = array('wgDBprefix');
|
|
if ($this->mFlags & DBO_SYSDBA) {
|
|
$varnames[] = 'wgDBOracleDefTS';
|
|
$varnames[] = 'wgDBOracleTempTS';
|
|
}
|
|
|
|
// Ordinary variables
|
|
foreach ( $varnames as $var ) {
|
|
if( isset( $GLOBALS[$var] ) ) {
|
|
$val = addslashes( $GLOBALS[$var] ); // FIXME: safety check?
|
|
$ins = str_replace( '{$' . $var . '}', $val, $ins );
|
|
$ins = str_replace( '/*$' . $var . '*/`', '`' . $val, $ins );
|
|
$ins = str_replace( '/*$' . $var . '*/', $val, $ins );
|
|
}
|
|
}
|
|
|
|
return parent::replaceVars($ins);
|
|
}
|
|
|
|
/**
|
|
* No-op lock functions
|
|
*/
|
|
public function lock( $lockName, $method ) {
|
|
return true;
|
|
}
|
|
public function unlock( $lockName, $method ) {
|
|
return true;
|
|
}
|
|
|
|
public function getSearchEngine() {
|
|
return "SearchOracle";
|
|
}
|
|
} // end DatabaseOracle class
|