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   1  <?php
   2  
   3  /*
   4  @version   v5.20.3  01-Jan-2016
   5  @copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
   6  @copyright (c) 2014      Damien Regad, Mark Newnham and the ADOdb community
   7    Released under both BSD license and Lesser GPL library license.
   8    Whenever there is any discrepancy between the two licenses,
   9    the BSD license will take precedence.
  10    Set tabs to 8.
  11  
  12    MySQL code that supports transactions. For MySQL 3.23 or later.
  13    Code from James Poon <jpoon88@yahoo.com>
  14    
  15    This driver extends the deprecated mysql driver, and was originally designed to be a 
  16    portable driver in the same manner as oci8po and mssqlpo. Its functionality
  17    is exactly duplicated in the mysqlt driver, which is itself deprecated.
  18    This driver will be removed in ADOdb version 6.0.0.
  19  
  20    Requires mysql client. Works on Windows and Unix.
  21  */
  22  
  23  // security - hide paths
  24  if (!defined('ADODB_DIR')) die();
  25  
  26  include_once(ADODB_DIR."/drivers/adodb-mysql.inc.php");
  27  
  28  
  29  class ADODB_mysqlt extends ADODB_mysql {
  30      var $databaseType = 'mysqlt';
  31      var $ansiOuter = true; // for Version 3.23.17 or later
  32      var $hasTransactions = true;
  33      var $autoRollback = true; // apparently mysql does not autorollback properly
  34  
  35  	function __construct()
  36      {
  37      global $ADODB_EXTENSION; if ($ADODB_EXTENSION) $this->rsPrefix .= 'ext_';
  38      }
  39  
  40  	function BeginTrans()
  41      {
  42          if ($this->transOff) return true;
  43          $this->transCnt += 1;
  44          $this->Execute('SET AUTOCOMMIT=0');
  45          $this->Execute('BEGIN');
  46          return true;
  47      }
  48  
  49  	function CommitTrans($ok=true)
  50      {
  51          if ($this->transOff) return true;
  52          if (!$ok) return $this->RollbackTrans();
  53  
  54          if ($this->transCnt) $this->transCnt -= 1;
  55          $this->Execute('COMMIT');
  56          $this->Execute('SET AUTOCOMMIT=1');
  57          return true;
  58      }
  59  
  60  	function RollbackTrans()
  61      {
  62          if ($this->transOff) return true;
  63          if ($this->transCnt) $this->transCnt -= 1;
  64          $this->Execute('ROLLBACK');
  65          $this->Execute('SET AUTOCOMMIT=1');
  66          return true;
  67      }
  68  
  69  	function RowLock($tables,$where='',$col='1 as adodbignore')
  70      {
  71          if ($this->transCnt==0) $this->BeginTrans();
  72          if ($where) $where = ' where '.$where;
  73          $rs = $this->Execute("select $col from $tables $where for update");
  74          return !empty($rs);
  75      }
  76  
  77  }
  78  
  79  class ADORecordSet_mysqlt extends ADORecordSet_mysql{
  80      var $databaseType = "mysqlt";
  81  
  82  	function __construct($queryID,$mode=false)
  83      {
  84          if ($mode === false) {
  85              global $ADODB_FETCH_MODE;
  86              $mode = $ADODB_FETCH_MODE;
  87          }
  88  
  89          switch ($mode)
  90          {
  91          case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break;
  92          case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break;
  93  
  94          case ADODB_FETCH_DEFAULT:
  95          case ADODB_FETCH_BOTH:
  96          default: $this->fetchMode = MYSQL_BOTH; break;
  97          }
  98  
  99          $this->adodbFetchMode = $mode;
 100          parent::__construct($queryID);
 101      }
 102  
 103  	function MoveNext()
 104      {
 105          if (@$this->fields = mysql_fetch_array($this->_queryID,$this->fetchMode)) {
 106              $this->_currentRow += 1;
 107              return true;
 108          }
 109          if (!$this->EOF) {
 110              $this->_currentRow += 1;
 111              $this->EOF = true;
 112          }
 113          return false;
 114      }
 115  }
 116  
 117  class ADORecordSet_ext_mysqlt extends ADORecordSet_mysqlt {
 118  
 119  	function __construct($queryID,$mode=false)
 120      {
 121          parent::__construct($queryID,$mode);
 122      }
 123  
 124  	function MoveNext()
 125      {
 126          return adodb_movenext($this);
 127      }
 128  }