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-rw-r--r--framework/DataAccess/adodb/drivers/adodb-db2.inc.php687
1 files changed, 687 insertions, 0 deletions
diff --git a/framework/DataAccess/adodb/drivers/adodb-db2.inc.php b/framework/DataAccess/adodb/drivers/adodb-db2.inc.php
new file mode 100644
index 00000000..dc732ac3
--- /dev/null
+++ b/framework/DataAccess/adodb/drivers/adodb-db2.inc.php
@@ -0,0 +1,687 @@
+<?php
+/*
+ V4.72 21 Feb 2006 (c) 2006 John Lim (jlim@natsoft.com.my). All rights reserved.
+
+This is a version of the ADODB driver for DB2. It uses the 'ibm_db2' PECL extension for PHP
+ (http://pecl.php.net/package/ibm_db2), which in turn requires DB2 V8.2.2.
+
+ Tested with PHP 5.1.1 and Apache 2.0.55 on Windows XP SP2.
+
+ This file was ported from "adodb-odbc.inc.php" by Larry Menard, "larry.menard@rogers.com".
+ I ripped out what I believed to be a lot of redundant or obsolete code, but there are
+ probably still some remnants of the ODBC support in this file; I'm relying on reviewers
+ of this code to point out any other things that can be removed.
+*/
+
+// security - hide paths
+if (!defined('ADODB_DIR')) die();
+
+ define("_ADODB_DB2_LAYER", 2 );
+
+/*--------------------------------------------------------------------------------------
+--------------------------------------------------------------------------------------*/
+
+
+class ADODB_db2 extends ADOConnection {
+ var $databaseType = "db2";
+ var $fmtDate = "'Y-m-d'";
+ var $fmtTimeStamp = "'Y-m-d, h:i:sA'";
+ var $replaceQuote = "''"; // string to use to replace quotes
+ var $dataProvider = "db2";
+ var $hasAffectedRows = true;
+
+ var $binmode = DB2_BINARY;
+
+ var $useFetchArray = false; // setting this to true will make array elements in FETCH_ASSOC mode case-sensitive
+ // breaking backward-compat
+ var $_bindInputArray = false;
+ var $_genSeqSQL = "create table %s (id integer)";
+ var $_autocommit = true;
+ var $_haserrorfunctions = true;
+ var $_lastAffectedRows = 0;
+ var $uCaseTables = true; // for meta* functions, uppercase table names
+
+ function ADODB_db2()
+ {
+ $this->_haserrorfunctions = ADODB_PHPVER >= 0x4050;
+ }
+
+ // returns true or false
+ function _connect($argDSN, $argUsername, $argPassword, $argDatabasename)
+ {
+ global $php_errormsg;
+
+ if (!function_exists('db2_connect')) {
+ ADOConnection::outp("Warning: The old ODBC based DB2 driver has been renamed 'odbc_db2'. This ADOdb driver calls PHP's native db2 extension.");
+ return null;
+ }
+ // This needs to be set before the connect().
+ // Replaces the odbc_binmode() call that was in Execute()
+ ini_set('ibm_db2.binmode', $this->binmode);
+
+ if ($argDatabasename) {
+ $this->_connectionID = db2_connect($argDatabasename,$argUsername,$argPassword);
+ } else {
+ $this->_connectionID = db2_connect($argDSN,$argUsername,$argPassword);
+ }
+ if (isset($php_errormsg)) $php_errormsg = '';
+
+ // For db2_connect(), there is an optional 4th arg. If present, it must be
+ // an array of valid options. So far, we don't use them.
+
+ $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : '';
+ if (isset($this->connectStmt)) $this->Execute($this->connectStmt);
+
+ return $this->_connectionID != false;
+ }
+
+ // returns true or false
+ function _pconnect($argDSN, $argUsername, $argPassword, $argDatabasename)
+ {
+ global $php_errormsg;
+
+ if (!function_exists('db2_connect')) return null;
+
+ // This needs to be set before the connect().
+ // Replaces the odbc_binmode() call that was in Execute()
+ ini_set('ibm_db2.binmode', $this->binmode);
+
+ if (isset($php_errormsg)) $php_errormsg = '';
+ $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : '';
+
+ if ($argDatabasename) {
+ $this->_connectionID = db2_pconnect($argDatabasename,$argUsername,$argPassword);
+ } else {
+ $this->_connectionID = db2_pconnect($argDSN,$argUsername,$argPassword);
+ }
+ if (isset($php_errormsg)) $php_errormsg = '';
+
+ $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : '';
+ if ($this->_connectionID && $this->autoRollback) @db2_rollback($this->_connectionID);
+ if (isset($this->connectStmt)) $this->Execute($this->connectStmt);
+
+ return $this->_connectionID != false;
+ }
+
+
+ function ServerInfo()
+ {
+
+ if (!empty($this->host) && ADODB_PHPVER >= 0x4300) {
+ $dsn = strtoupper($this->host);
+ $first = true;
+ $found = false;
+
+ if (!function_exists('db2_data_source')) return false;
+
+ while(true) {
+
+ $rez = @db2_data_source($this->_connectionID,
+ $first ? SQL_FETCH_FIRST : SQL_FETCH_NEXT);
+ $first = false;
+ if (!is_array($rez)) break;
+ if (strtoupper($rez['server']) == $dsn) {
+ $found = true;
+ break;
+ }
+ }
+ if (!$found) return ADOConnection::ServerInfo();
+ if (!isset($rez['version'])) $rez['version'] = '';
+ return $rez;
+ } else {
+ return ADOConnection::ServerInfo();
+ }
+ }
+
+
+ function CreateSequence($seqname='adodbseq',$start=1)
+ {
+ if (empty($this->_genSeqSQL)) return false;
+ $ok = $this->Execute(sprintf($this->_genSeqSQL,$seqname));
+ if (!$ok) return false;
+ $start -= 1;
+ return $this->Execute("insert into $seqname values($start)");
+ }
+
+ var $_dropSeqSQL = 'drop table %s';
+ function DropSequence($seqname)
+ {
+ if (empty($this->_dropSeqSQL)) return false;
+ return $this->Execute(sprintf($this->_dropSeqSQL,$seqname));
+ }
+
+ /*
+ This algorithm is not very efficient, but works even if table locking
+ is not available.
+
+ Will return false if unable to generate an ID after $MAXLOOPS attempts.
+ */
+ function GenID($seq='adodbseq',$start=1)
+ {
+ // if you have to modify the parameter below, your database is overloaded,
+ // or you need to implement generation of id's yourself!
+ $MAXLOOPS = 100;
+ while (--$MAXLOOPS>=0) {
+ $num = $this->GetOne("select id from $seq");
+ if ($num === false) {
+ $this->Execute(sprintf($this->_genSeqSQL ,$seq));
+ $start -= 1;
+ $num = '0';
+ $ok = $this->Execute("insert into $seq values($start)");
+ if (!$ok) return false;
+ }
+ $this->Execute("update $seq set id=id+1 where id=$num");
+
+ if ($this->affected_rows() > 0) {
+ $num += 1;
+ $this->genID = $num;
+ return $num;
+ }
+ }
+ if ($fn = $this->raiseErrorFn) {
+ $fn($this->databaseType,'GENID',-32000,"Unable to generate unique id after $MAXLOOPS attempts",$seq,$num);
+ }
+ return false;
+ }
+
+
+ function ErrorMsg()
+ {
+ if ($this->_haserrorfunctions) {
+ if ($this->_errorMsg !== false) return $this->_errorMsg;
+ if (empty($this->_connectionID)) return @db2_errormsg();
+ return @db2_errormsg($this->_connectionID);
+ } else return ADOConnection::ErrorMsg();
+ }
+
+ function ErrorNo()
+ {
+
+ if ($this->_haserrorfunctions) {
+ if ($this->_errorCode !== false) {
+ // bug in 4.0.6, error number can be corrupted string (should be 6 digits)
+ return (strlen($this->_errorCode)<=2) ? 0 : $this->_errorCode;
+ }
+
+ if (empty($this->_connectionID)) $e = @db2_error();
+ else $e = @db2_error($this->_connectionID);
+
+ // bug in 4.0.6, error number can be corrupted string (should be 6 digits)
+ // so we check and patch
+ if (strlen($e)<=2) return 0;
+ return $e;
+ } else return ADOConnection::ErrorNo();
+ }
+
+
+
+ function BeginTrans()
+ {
+ if (!$this->hasTransactions) return false;
+ if ($this->transOff) return true;
+ $this->transCnt += 1;
+ $this->_autocommit = false;
+ return db2_autocommit($this->_connectionID,false);
+ }
+
+ function CommitTrans($ok=true)
+ {
+ if ($this->transOff) return true;
+ if (!$ok) return $this->RollbackTrans();
+ if ($this->transCnt) $this->transCnt -= 1;
+ $this->_autocommit = true;
+ $ret = db2_commit($this->_connectionID);
+ db2_autocommit($this->_connectionID,true);
+ return $ret;
+ }
+
+ function RollbackTrans()
+ {
+ if ($this->transOff) return true;
+ if ($this->transCnt) $this->transCnt -= 1;
+ $this->_autocommit = true;
+ $ret = db2_rollback($this->_connectionID);
+ db2_autocommit($this->_connectionID,true);
+ return $ret;
+ }
+
+ function MetaPrimaryKeys($table)
+ {
+ global $ADODB_FETCH_MODE;
+
+ if ($this->uCaseTables) $table = strtoupper($table);
+ $schema = '';
+ $this->_findschema($table,$schema);
+
+ $savem = $ADODB_FETCH_MODE;
+ $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
+ $qid = @db2_primarykeys($this->_connectionID,'',$schema,$table);
+
+ if (!$qid) {
+ $ADODB_FETCH_MODE = $savem;
+ return false;
+ }
+ $rs = new ADORecordSet_db2($qid);
+ $ADODB_FETCH_MODE = $savem;
+
+ if (!$rs) return false;
+
+ $arr =& $rs->GetArray();
+ $rs->Close();
+ $arr2 = array();
+ for ($i=0; $i < sizeof($arr); $i++) {
+ if ($arr[$i][3]) $arr2[] = $arr[$i][3];
+ }
+ return $arr2;
+ }
+
+
+
+ function &MetaTables($ttype=false)
+ {
+ global $ADODB_FETCH_MODE;
+
+ $savem = $ADODB_FETCH_MODE;
+ $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
+ $qid = db2_tables($this->_connectionID);
+
+ $rs = new ADORecordSet_db2($qid);
+
+ $ADODB_FETCH_MODE = $savem;
+ if (!$rs) {
+ $false = false;
+ return $false;
+ }
+
+ $arr =& $rs->GetArray();
+
+ $rs->Close();
+ $arr2 = array();
+
+ if ($ttype) {
+ $isview = strncmp($ttype,'V',1) === 0;
+ }
+ for ($i=0; $i < sizeof($arr); $i++) {
+ if (!$arr[$i][2]) continue;
+ $type = $arr[$i][3];
+ if ($ttype) {
+ if ($isview) {
+ if (strncmp($type,'V',1) === 0) $arr2[] = $arr[$i][2];
+ } else if (strncmp($type,'SYS',3) !== 0) $arr2[] = $arr[$i][2];
+ } else if (strncmp($type,'SYS',3) !== 0) $arr2[] = $arr[$i][2];
+ }
+ return $arr2;
+ }
+
+/*
+See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/db2/htm/db2datetime_data_type_changes.asp
+/ SQL data type codes /
+#define SQL_UNKNOWN_TYPE 0
+#define SQL_CHAR 1
+#define SQL_NUMERIC 2
+#define SQL_DECIMAL 3
+#define SQL_INTEGER 4
+#define SQL_SMALLINT 5
+#define SQL_FLOAT 6
+#define SQL_REAL 7
+#define SQL_DOUBLE 8
+#if (DB2VER >= 0x0300)
+#define SQL_DATETIME 9
+#endif
+#define SQL_VARCHAR 12
+
+
+/ One-parameter shortcuts for date/time data types /
+#if (DB2VER >= 0x0300)
+#define SQL_TYPE_DATE 91
+#define SQL_TYPE_TIME 92
+#define SQL_TYPE_TIMESTAMP 93
+
+#define SQL_UNICODE (-95)
+#define SQL_UNICODE_VARCHAR (-96)
+#define SQL_UNICODE_LONGVARCHAR (-97)
+*/
+ function DB2Types($t)
+ {
+ switch ((integer)$t) {
+ case 1:
+ case 12:
+ case 0:
+ case -95:
+ case -96:
+ return 'C';
+ case -97:
+ case -1: //text
+ return 'X';
+ case -4: //image
+ return 'B';
+
+ case 9:
+ case 91:
+ return 'D';
+
+ case 10:
+ case 11:
+ case 92:
+ case 93:
+ return 'T';
+
+ case 4:
+ case 5:
+ case -6:
+ return 'I';
+
+ case -11: // uniqidentifier
+ return 'R';
+ case -7: //bit
+ return 'L';
+
+ default:
+ return 'N';
+ }
+ }
+
+ function &MetaColumns($table)
+ {
+ global $ADODB_FETCH_MODE;
+
+ $false = false;
+ if ($this->uCaseTables) $table = strtoupper($table);
+ $schema = '';
+ $this->_findschema($table,$schema);
+
+ $savem = $ADODB_FETCH_MODE;
+ $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
+
+ $colname = "%";
+ $qid = db2_columns($this->_connectionID, "", $schema, $table, $colname);
+ if (empty($qid)) return $false;
+
+ $rs =& new ADORecordSet_db2($qid);
+ $ADODB_FETCH_MODE = $savem;
+
+ if (!$rs) return $false;
+ $rs->_fetch();
+
+ $retarr = array();
+
+ /*
+ $rs->fields indices
+ 0 TABLE_QUALIFIER
+ 1 TABLE_SCHEM
+ 2 TABLE_NAME
+ 3 COLUMN_NAME
+ 4 DATA_TYPE
+ 5 TYPE_NAME
+ 6 PRECISION
+ 7 LENGTH
+ 8 SCALE
+ 9 RADIX
+ 10 NULLABLE
+ 11 REMARKS
+ */
+ while (!$rs->EOF) {
+ if (strtoupper(trim($rs->fields[2])) == $table && (!$schema || strtoupper($rs->fields[1]) == $schema)) {
+ $fld = new ADOFieldObject();
+ $fld->name = $rs->fields[3];
+ $fld->type = $this->DB2Types($rs->fields[4]);
+
+ // ref: http://msdn.microsoft.com/library/default.asp?url=/archive/en-us/dnaraccgen/html/msdn_odk.asp
+ // access uses precision to store length for char/varchar
+ if ($fld->type == 'C' or $fld->type == 'X') {
+ if ($rs->fields[4] <= -95) // UNICODE
+ $fld->max_length = $rs->fields[7]/2;
+ else
+ $fld->max_length = $rs->fields[7];
+ } else
+ $fld->max_length = $rs->fields[7];
+ $fld->not_null = !empty($rs->fields[10]);
+ $fld->scale = $rs->fields[8];
+ $retarr[strtoupper($fld->name)] = $fld;
+ } else if (sizeof($retarr)>0)
+ break;
+ $rs->MoveNext();
+ }
+ $rs->Close(); //-- crashes 4.03pl1 -- why?
+
+ if (empty($retarr)) $retarr = false;
+ return $retarr;
+ }
+
+ function Prepare($sql)
+ {
+ if (! $this->_bindInputArray) return $sql; // no binding
+ $stmt = db2_prepare($this->_connectionID,$sql);
+ if (!$stmt) {
+ // we don't know whether db2 driver is parsing prepared stmts, so just return sql
+ return $sql;
+ }
+ return array($sql,$stmt,false);
+ }
+
+ /* returns queryID or false */
+ function _query($sql,$inputarr=false)
+ {
+ GLOBAL $php_errormsg;
+ if (isset($php_errormsg)) $php_errormsg = '';
+ $this->_error = '';
+
+ if ($inputarr) {
+ if (is_array($sql)) {
+ $stmtid = $sql[1];
+ } else {
+ $stmtid = db2_prepare($this->_connectionID,$sql);
+
+ if ($stmtid == false) {
+ $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : '';
+ return false;
+ }
+ }
+
+ if (! db2_execute($stmtid,$inputarr)) {
+ if ($this->_haserrorfunctions) {
+ $this->_errorMsg = db2_errormsg();
+ $this->_errorCode = db2_error();
+ }
+ return false;
+ }
+
+ } else if (is_array($sql)) {
+ $stmtid = $sql[1];
+ if (!db2_execute($stmtid)) {
+ if ($this->_haserrorfunctions) {
+ $this->_errorMsg = db2_errormsg();
+ $this->_errorCode = db2_error();
+ }
+ return false;
+ }
+ } else
+ $stmtid = db2_exec($this->_connectionID,$sql);
+
+ $this->_lastAffectedRows = 0;
+ if ($stmtid) {
+ if (@db2_num_fields($stmtid) == 0) {
+ $this->_lastAffectedRows = db2_num_rows($stmtid);
+ $stmtid = true;
+ } else {
+ $this->_lastAffectedRows = 0;
+ }
+
+ if ($this->_haserrorfunctions) {
+ $this->_errorMsg = '';
+ $this->_errorCode = 0;
+ } else
+ $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : '';
+ } else {
+ if ($this->_haserrorfunctions) {
+ $this->_errorMsg = db2_stmt_errormsg();
+ $this->_errorCode = db2_stmt_error();
+ } else
+ $this->_errorMsg = isset($php_errormsg) ? $php_errormsg : '';
+ }
+ return $stmtid;
+ }
+
+ /*
+ Insert a null into the blob field of the table first.
+ Then use UpdateBlob to store the blob.
+
+ Usage:
+
+ $conn->Execute('INSERT INTO blobtable (id, blobcol) VALUES (1, null)');
+ $conn->UpdateBlob('blobtable','blobcol',$blob,'id=1');
+ */
+ function UpdateBlob($table,$column,$val,$where,$blobtype='BLOB')
+ {
+ return $this->Execute("UPDATE $table SET $column=? WHERE $where",array($val)) != false;
+ }
+
+ // returns true or false
+ function _close()
+ {
+ $ret = @db2_close($this->_connectionID);
+ $this->_connectionID = false;
+ return $ret;
+ }
+
+ function _affectedrows()
+ {
+ return $this->_lastAffectedRows;
+ }
+
+}
+
+/*--------------------------------------------------------------------------------------
+ Class Name: Recordset
+--------------------------------------------------------------------------------------*/
+
+class ADORecordSet_db2 extends ADORecordSet {
+
+ var $bind = false;
+ var $databaseType = "db2";
+ var $dataProvider = "db2";
+ var $useFetchArray;
+
+ function ADORecordSet_db2($id,$mode=false)
+ {
+ if ($mode === false) {
+ global $ADODB_FETCH_MODE;
+ $mode = $ADODB_FETCH_MODE;
+ }
+ $this->fetchMode = $mode;
+
+ $this->_queryID = $id;
+ }
+
+
+ // returns the field object
+ function &FetchField($fieldOffset = -1)
+ {
+
+ $off=$fieldOffset+1; // offsets begin at 1
+
+ $o= new ADOFieldObject();
+ $o->name = @db2_field_name($this->_queryID,$off);
+ $o->type = @db2_field_type($this->_queryID,$off);
+ $o->max_length = db2_field_width($this->_queryID,$off);
+ if (ADODB_ASSOC_CASE == 0) $o->name = strtolower($o->name);
+ else if (ADODB_ASSOC_CASE == 1) $o->name = strtoupper($o->name);
+ return $o;
+ }
+
+ /* Use associative array to get fields array */
+ function Fields($colname)
+ {
+ if ($this->fetchMode & ADODB_FETCH_ASSOC) return $this->fields[$colname];
+ if (!$this->bind) {
+ $this->bind = array();
+ for ($i=0; $i < $this->_numOfFields; $i++) {
+ $o = $this->FetchField($i);
+ $this->bind[strtoupper($o->name)] = $i;
+ }
+ }
+
+ return $this->fields[$this->bind[strtoupper($colname)]];
+ }
+
+
+ function _initrs()
+ {
+ global $ADODB_COUNTRECS;
+ $this->_numOfRows = ($ADODB_COUNTRECS) ? @db2_num_rows($this->_queryID) : -1;
+ $this->_numOfFields = @db2_num_fields($this->_queryID);
+ // some silly drivers such as db2 as/400 and intersystems cache return _numOfRows = 0
+ if ($this->_numOfRows == 0) $this->_numOfRows = -1;
+ }
+
+ function _seek($row)
+ {
+ return false;
+ }
+
+ // speed up SelectLimit() by switching to ADODB_FETCH_NUM as ADODB_FETCH_ASSOC is emulated
+ function &GetArrayLimit($nrows,$offset=-1)
+ {
+ if ($offset <= 0) {
+ $rs =& $this->GetArray($nrows);
+ return $rs;
+ }
+ $savem = $this->fetchMode;
+ $this->fetchMode = ADODB_FETCH_NUM;
+ $this->Move($offset);
+ $this->fetchMode = $savem;
+
+ if ($this->fetchMode & ADODB_FETCH_ASSOC) {
+ $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE);
+ }
+
+ $results = array();
+ $cnt = 0;
+ while (!$this->EOF && $nrows != $cnt) {
+ $results[$cnt++] = $this->fields;
+ $this->MoveNext();
+ }
+
+ return $results;
+ }
+
+
+ function MoveNext()
+ {
+ if ($this->_numOfRows != 0 && !$this->EOF) {
+ $this->_currentRow++;
+
+ $this->fields = @db2_fetch_array($this->_queryID);
+ if ($this->fields) {
+ if ($this->fetchMode & ADODB_FETCH_ASSOC) {
+ $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE);
+ }
+ return true;
+ }
+ }
+ $this->fields = false;
+ $this->EOF = true;
+ return false;
+ }
+
+ function _fetch()
+ {
+
+ $this->fields = db2_fetch_array($this->_queryID);
+ if ($this->fields) {
+ if ($this->fetchMode & ADODB_FETCH_ASSOC) {
+ $this->fields =& $this->GetRowAssoc(ADODB_ASSOC_CASE);
+ }
+ return true;
+ }
+ $this->fields = false;
+ return false;
+ }
+
+ function _close()
+ {
+ return @db2_free_result($this->_queryID);
+ }
+
+}
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-15 20:19:01 +0000