Peter M. Groen / knowledgetree

Commit 41adce884a3e971cea7e994d8c4e2b22855c554d

Authored by nbm
1 parent 6eebf621

Add transparent (requested) transaction support for dispatcher. A 

dispatcher can be configured to always use transactions, or you can
start a transaction.  Either way, rollback occurs when errorPage or
errorRedirectTo is used, and committing happens in standard case and in
successRedirectTo.


git-svn-id: https://kt-dms.svn.sourceforge.net/svnroot/kt-dms/trunk@3692 c91229c3-7414-0410-bfa2-8a42b809f60b
Inline Side-by-side
Showing 1 changed file with 43 additions and 7 deletions
lib/dispatcher.inc.php
  View file @41adce8
... ... @@ -2,6 +2,8 @@
2 2  
3 3 class KTDispatcher {
4 4 var $event_var = "action";
  5 + var $bAutomaticTransaction = false;
  6 + var $bTransactionStarted = false;
5 7  
6 8 function dispatch () {
7 9 $method = 'do_main';
... ... @@ -12,19 +14,50 @@ class KTDispatcher {
12 14 }
13 15 }
14 16  
  17 + if ($this->bAutomaticTransaction) {
  18 + $this->startTransaction();
  19 + }
  20 +
15 21 $ret = $this->$method();
16 22 $this->handleOutput($ret);
  23 +
  24 + if ($this->bTransactionStarted) {
  25 + $this->commitTransaction();
  26 + }
  27 + }
  28 +
  29 + function startTransaction() {
  30 + DBUtil::startTransaction();
  31 + $this->bTransactionStarted = true;
  32 + }
  33 +
  34 + function commitTransaction() {
  35 + DBUtil::commit();
  36 + $this->bTransactionStarted = false;
  37 + }
  38 +
  39 + function rollbackTransaction() {
  40 + DBUtil::rollback();
  41 + $this->bTransactionStarted = false;
17 42 }
18 43  
19 44 function errorRedirectTo($event, $error_message, $sQuery = "") {
20   - /* $method = 'do_main';
21   - if (method_exists($this, 'do_' . $event)) {
22   - $method = 'do_' . $event;
23   - }*/
  45 + if ($this->bTransactionStarted) {
  46 + $this->rollbackTransaction();
  47 + }
  48 +
24 49 $_SESSION['KTErrorMessage'][] = $error_message;
25   - //exit(redirect($_SERVER["PHP_SELF"] . '?action=' . $event));
26   - exit($this->redirectTo($event, $sQuery));
27   - //return $this->$method();
  50 + $this->redirectTo($event, $sQuery);
  51 + }
  52 +
  53 + function successRedirectTo($event, $info_message, $sQuery = "") {
  54 + if ($this->bTransactionStarted) {
  55 + $this->commitTransaction();
  56 + }
  57 + if (!empty($info_message)) {
  58 + $_SESSION['KTInfoMessage'][] = $info_message;
  59 + }
  60 + $this->redirectTo($event, $sQuery);
28 61 }
29 62  
30 63 function redirectTo($event, $sQuery = "") {
... ... @@ -109,6 +142,9 @@ class KTStandardDispatcher extends KTDispatcher {
109 142 }
110 143  
111 144 function errorPage($errorMessage) {
  145 + if ($this->bTransactionStarted) {
  146 + $this->rollbackTransaction();
  147 + }
112 148 $this->handleOutput($errorMessage);
113 149 exit(0);
114 150 }
... ...