Documentation TYPO3 par Ameos

adodb-mysqlt.inc.php

00001 <?php
00002 
00003 /*
00004 V4.93 10 Oct 2006  (c) 2000-2006 John Lim (jlim#natsoft.com.my). All rights reserved.
00005   Released under both BSD license and Lesser GPL library license. 
00006   Whenever there is any discrepancy between the two licenses, 
00007   the BSD license will take precedence.
00008   Set tabs to 8.
00009   
00010   MySQL code that supports transactions. For MySQL 3.23 or later.
00011   Code from James Poon <jpoon88@yahoo.com>
00012   
00013   Requires mysql client. Works on Windows and Unix.
00014 */
00015 
00016 // security - hide paths
00017 if (!defined('ADODB_DIR')) die();
00018 
00019 include_once(ADODB_DIR."/drivers/adodb-mysql.inc.php");
00020 
00021 
00022 class ADODB_mysqlt extends ADODB_mysql {
00023         var $databaseType = 'mysqlt';
00024         var $ansiOuter = true; // for Version 3.23.17 or later
00025         var $hasTransactions = true;
00026         var $autoRollback = true; // apparently mysql does not autorollback properly 
00027         
00028         function ADODB_mysqlt() 
00029         {                       
00030         global $ADODB_EXTENSION; if ($ADODB_EXTENSION) $this->rsPrefix .= 'ext_';
00031         }
00032         
00033         /* set transaction mode
00034         
00035         SET [GLOBAL | SESSION] TRANSACTION ISOLATION LEVEL
00036 { READ UNCOMMITTED | READ COMMITTED | REPEATABLE READ | SERIALIZABLE }
00037 
00038         */
00039         function SetTransactionMode( $transaction_mode ) 
00040         {
00041                 $this->_transmode  = $transaction_mode;
00042                 if (empty($transaction_mode)) {
00043                         $this->Execute('SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ');
00044                         return;
00045                 }
00046                 if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode;
00047                 $this->Execute("SET SESSION TRANSACTION ".$transaction_mode);
00048         }
00049         
00050         function BeginTrans()
00051         {         
00052                 if ($this->transOff) return true;
00053                 $this->transCnt += 1;
00054                 $this->Execute('SET AUTOCOMMIT=0');
00055                 $this->Execute('BEGIN');
00056                 return true;
00057         }
00058         
00059         function CommitTrans($ok=true) 
00060         {
00061                 if ($this->transOff) return true; 
00062                 if (!$ok) return $this->RollbackTrans();
00063                 
00064                 if ($this->transCnt) $this->transCnt -= 1;
00065                 $this->Execute('COMMIT');
00066                 $this->Execute('SET AUTOCOMMIT=1');
00067                 return true;
00068         }
00069         
00070         function RollbackTrans()
00071         {
00072                 if ($this->transOff) return true;
00073                 if ($this->transCnt) $this->transCnt -= 1;
00074                 $this->Execute('ROLLBACK');
00075                 $this->Execute('SET AUTOCOMMIT=1');
00076                 return true;
00077         }
00078         
00079         function RowLock($tables,$where='',$flds='1 as adodb_ignore') 
00080         {
00081                 if ($this->transCnt==0) $this->BeginTrans();
00082                 if ($where) $where = ' where '.$where;
00083                 $rs =& $this->Execute("select $flds from $tables $where for update");
00084                 return !empty($rs); 
00085         }
00086         
00087 }
00088 
00089 class ADORecordSet_mysqlt extends ADORecordSet_mysql{   
00090         var $databaseType = "mysqlt";
00091         
00092         function ADORecordSet_mysqlt($queryID,$mode=false) 
00093         {
00094                 if ($mode === false) { 
00095                         global $ADODB_FETCH_MODE;
00096                         $mode = $ADODB_FETCH_MODE;
00097                 }
00098                 
00099                 switch ($mode)
00100                 {
00101                 case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break;
00102                 case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break;
00103                 
00104                 case ADODB_FETCH_DEFAULT:
00105                 case ADODB_FETCH_BOTH:
00106                 default: $this->fetchMode = MYSQL_BOTH; break;
00107                 }
00108         
00109                 $this->adodbFetchMode = $mode;
00110                 $this->ADORecordSet($queryID);  
00111         }
00112         
00113         function MoveNext()
00114         {
00115                 if (@$this->fields = mysql_fetch_array($this->_queryID,$this->fetchMode)) {
00116                         $this->_currentRow += 1;
00117                         return true;
00118                 }
00119                 if (!$this->EOF) {
00120                         $this->_currentRow += 1;
00121                         $this->EOF = true;
00122                 }
00123                 return false;
00124         }
00125 }
00126 
00127 class ADORecordSet_ext_mysqlt extends ADORecordSet_mysqlt {     
00128 
00129         function ADORecordSet_ext_mysqlt($queryID,$mode=false) 
00130         {
00131                 if ($mode === false) { 
00132                         global $ADODB_FETCH_MODE;
00133                         $mode = $ADODB_FETCH_MODE;
00134                 }
00135                 switch ($mode)
00136                 {
00137                 case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break;
00138                 case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break;
00139                 
00140                 case ADODB_FETCH_DEFAULT:
00141                 case ADODB_FETCH_BOTH:
00142                 default: 
00143                         $this->fetchMode = MYSQL_BOTH; break;
00144                 }
00145                 $this->adodbFetchMode = $mode;
00146                 $this->ADORecordSet($queryID);  
00147         }
00148         
00149         function MoveNext()
00150         {
00151                 return adodb_movenext($this);
00152         }
00153 }
00154 
00155 ?>


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