mirror_php/moodle
1
0
Fork 0
mirror of https://github.com/moodle/moodle.git synced 2025-04-13 12:32:08 +02:00
Code Issues Projects Releases Wiki Activity

MDL-14679 dml/native_mysqli transactions support

Browse Source
This commit is contained in:
skodak 2008-10-27 20:58:37 +00:00
parent fb76304b3b
commit fa76662bb2
1 changed files with 41 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
lib/dml/mysqli_native_moodle_database.php
View File

@ -889,4 +889,45 @@ class mysqli_native_moodle_database extends moodle_database {
public function sql_regex($positivematch=true) {
return $positivematch ? 'REGEXP' : 'NOT REGEXP';
}
/// transactions
/**
* on DBs that support it, switch to transaction mode and begin a transaction
* you'll need to ensure you call commit_sql() or your changes *will* be lost.
*
* this is _very_ useful for massive updates
*/
public function begin_sql() {
$result = $result = $this->mysqli->query("SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED");
if ($result === false) {
return false;
}
$result = $result = $this->mysqli->query("BEGIN");
if ($result === false) {
return false;
}
return true;
}
/**
* on DBs that support it, commit the transaction
*/
public function commit_sql() {
$result = $result = $this->mysqli->query("COMMIT");
if ($result === false) {
return false;
}
return true;
}
/**
* on DBs that support it, rollback the transaction
*/
public function rollback_sql() {
$result = $result = $this->mysqli->query("ROLLBACK");
if ($result === false) {
return false;
}
return true;
}
}