[6779] | 1 | <?php |
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| 2 | |
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| 3 | /* |
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| 4 | V4.94 23 Jan 2007 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved. |
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| 5 | Released under both BSD license and Lesser GPL library license. |
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| 6 | Whenever there is any discrepancy between the two licenses, |
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| 7 | the BSD license will take precedence. |
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| 8 | Set tabs to 8. |
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| 9 | |
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| 10 | MySQL code that supports transactions. For MySQL 3.23 or later. |
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| 11 | Code from James Poon <jpoon88@yahoo.com> |
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| 12 | |
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| 13 | Requires mysql client. Works on Windows and Unix. |
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| 14 | */ |
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| 15 | |
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| 16 | // security - hide paths |
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| 17 | if (!defined('ADODB_DIR')) die(); |
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| 18 | |
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| 19 | include_once(ADODB_DIR."/drivers/adodb-mysql.inc.php"); |
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| 20 | |
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| 21 | |
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| 22 | class ADODB_mysqlt extends ADODB_mysql { |
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| 23 | var $databaseType = 'mysqlt'; |
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| 24 | var $ansiOuter = true; // for Version 3.23.17 or later |
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| 25 | var $hasTransactions = true; |
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| 26 | var $autoRollback = true; // apparently mysql does not autorollback properly |
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| 27 | |
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| 28 | function ADODB_mysqlt() |
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| 29 | { |
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| 30 | global $ADODB_EXTENSION; if ($ADODB_EXTENSION) $this->rsPrefix .= 'ext_'; |
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| 31 | } |
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| 32 | |
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| 33 | /* set transaction mode |
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| 34 | |
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| 35 | SET [GLOBAL | SESSION] TRANSACTION ISOLATION LEVEL |
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| 36 | { READ UNCOMMITTED | READ COMMITTED | REPEATABLE READ | SERIALIZABLE } |
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| 37 | |
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| 38 | */ |
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| 39 | function SetTransactionMode( $transaction_mode ) |
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| 40 | { |
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| 41 | $this->_transmode = $transaction_mode; |
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| 42 | if (empty($transaction_mode)) { |
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| 43 | $this->Execute('SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ'); |
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| 44 | return; |
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| 45 | } |
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| 46 | if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode; |
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| 47 | $this->Execute("SET SESSION TRANSACTION ".$transaction_mode); |
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| 48 | } |
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| 49 | |
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| 50 | function BeginTrans() |
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| 51 | { |
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| 52 | if ($this->transOff) return true; |
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| 53 | $this->transCnt += 1; |
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| 54 | $this->Execute('SET AUTOCOMMIT=0'); |
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| 55 | $this->Execute('BEGIN'); |
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| 56 | return true; |
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| 57 | } |
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| 58 | |
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| 59 | function CommitTrans($ok=true) |
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| 60 | { |
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| 61 | if ($this->transOff) return true; |
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| 62 | if (!$ok) return $this->RollbackTrans(); |
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| 63 | |
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| 64 | if ($this->transCnt) $this->transCnt -= 1; |
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| 65 | $this->Execute('COMMIT'); |
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| 66 | $this->Execute('SET AUTOCOMMIT=1'); |
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| 67 | return true; |
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| 68 | } |
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| 69 | |
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| 70 | function RollbackTrans() |
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| 71 | { |
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| 72 | if ($this->transOff) return true; |
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| 73 | if ($this->transCnt) $this->transCnt -= 1; |
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| 74 | $this->Execute('ROLLBACK'); |
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| 75 | $this->Execute('SET AUTOCOMMIT=1'); |
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| 76 | return true; |
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| 77 | } |
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| 78 | |
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| 79 | function RowLock($tables,$where='',$flds='1 as adodb_ignore') |
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| 80 | { |
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| 81 | if ($this->transCnt==0) $this->BeginTrans(); |
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| 82 | if ($where) $where = ' where '.$where; |
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| 83 | $rs =& $this->Execute("select $flds from $tables $where for update"); |
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| 84 | return !empty($rs); |
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| 85 | } |
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| 86 | |
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| 87 | } |
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| 88 | |
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| 89 | class ADORecordSet_mysqlt extends ADORecordSet_mysql{ |
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| 90 | var $databaseType = "mysqlt"; |
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| 91 | |
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| 92 | function ADORecordSet_mysqlt($queryID,$mode=false) |
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| 93 | { |
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| 94 | if ($mode === false) { |
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| 95 | global $ADODB_FETCH_MODE; |
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| 96 | $mode = $ADODB_FETCH_MODE; |
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| 97 | } |
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| 98 | |
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| 99 | switch ($mode) |
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| 100 | { |
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| 101 | case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break; |
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| 102 | case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break; |
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| 103 | |
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| 104 | case ADODB_FETCH_DEFAULT: |
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| 105 | case ADODB_FETCH_BOTH: |
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| 106 | default: $this->fetchMode = MYSQL_BOTH; break; |
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| 107 | } |
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| 108 | |
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| 109 | $this->adodbFetchMode = $mode; |
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| 110 | $this->ADORecordSet($queryID); |
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| 111 | } |
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| 112 | |
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| 113 | function MoveNext() |
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| 114 | { |
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| 115 | if (@$this->fields = mysql_fetch_array($this->_queryID,$this->fetchMode)) { |
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| 116 | $this->_currentRow += 1; |
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| 117 | return true; |
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| 118 | } |
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| 119 | if (!$this->EOF) { |
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| 120 | $this->_currentRow += 1; |
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| 121 | $this->EOF = true; |
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| 122 | } |
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| 123 | return false; |
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| 124 | } |
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| 125 | } |
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| 126 | |
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| 127 | class ADORecordSet_ext_mysqlt extends ADORecordSet_mysqlt { |
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| 128 | |
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| 129 | function ADORecordSet_ext_mysqlt($queryID,$mode=false) |
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| 130 | { |
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| 131 | if ($mode === false) { |
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| 132 | global $ADODB_FETCH_MODE; |
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| 133 | $mode = $ADODB_FETCH_MODE; |
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| 134 | } |
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| 135 | switch ($mode) |
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| 136 | { |
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| 137 | case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break; |
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| 138 | case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break; |
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| 139 | |
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| 140 | case ADODB_FETCH_DEFAULT: |
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| 141 | case ADODB_FETCH_BOTH: |
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| 142 | default: |
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| 143 | $this->fetchMode = MYSQL_BOTH; break; |
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| 144 | } |
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| 145 | $this->adodbFetchMode = $mode; |
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| 146 | $this->ADORecordSet($queryID); |
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| 147 | } |
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| 148 | |
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| 149 | function MoveNext() |
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| 150 | { |
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| 151 | return adodb_movenext($this); |
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| 152 | } |
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| 153 | } |
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| 154 | |
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| 155 | ?> |
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