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doctrine2/manual/codes/Advanced components - Locking Manager - Examples.php
2006-07-26 17:09:00 +00:00

62 lines
1.4 KiB
PHP

At the page where the lock is requested...
<?php
// Get a locking manager instance
$lockingMngr = new Doctrine_Locking_Manager_Pessimistic();
try
{
// Ensure that old locks which timed out are released
// before we try to acquire our lock
// 300 seconds = 5 minutes timeout
$lockingMngr->releaseAgedLocks(300);
// Try to get the lock on a record
$gotLock = $lockingMngr->getLock(
// The record to lock. This can be any Doctrine_Record
$myRecordToLock,
// The unique identifier of the user who is trying to get the lock
'Bart Simpson'
);
if($gotLock)
{
echo "Got lock!";
// ... proceed
}
else
{
echo "Sorry, someone else is currently working on this record";
}
}
catch(Doctrine_Locking_Exception $dle)
{
echo $dle->getMessage();
// handle the error
}
?>
At the page where the transaction finishes...
<?php
// Get a locking manager instance
$lockingMngr = new Doctrine_Locking_Manager_Pessimistic();
try
{
if($lockingMngr->releaseLock($myRecordToUnlock, 'Bart Simpson'))
{
echo "Lock released";
}
else
{
echo "Record was not locked. No locks released.";
}
}
catch(Doctrine_Locking_Exception $dle)
{
echo $dle->getMessage();
// handle the error
}
?>