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