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|
--TEST--
MongoDB\Driver\Session::startTransaction() Committing a transaction with example for how to handle failures
--SKIPIF--
<?php require __DIR__ . "/../utils/basic-skipif.inc"; ?>
<?php skip_if_not_libmongoc_crypto(); ?>
<?php skip_if_no_transactions(); ?>
<?php skip_if_not_clean(DATABASE_NAME, COLLECTION_NAME . '_employees'); ?>
<?php skip_if_not_clean(DATABASE_NAME, COLLECTION_NAME . '_events'); ?>
--FILE--
<?php
require_once __DIR__ . "/../utils/basic.inc";
$EMPLOYEES_COL = COLLECTION_NAME . '_employees';
$EVENTS_COL = COLLECTION_NAME . '_events';
$manager = new MongoDB\Driver\Manager(URI);
/* Create collections as that can't be (automatically) done in a transaction */
$manager->executeCommand(
DATABASE_NAME,
new \MongoDB\Driver\Command([ 'create' => $EMPLOYEES_COL ]),
[ 'writeConcern' => new \MongoDB\Driver\WriteConcern( \MongoDB\Driver\WriteConcern::MAJORITY ) ]
);
$manager->executeCommand(
DATABASE_NAME,
new \MongoDB\Driver\Command([ 'create' => $EVENTS_COL ]),
[ 'writeConcern' => new \MongoDB\Driver\WriteConcern( \MongoDB\Driver\WriteConcern::MAJORITY ) ]
);
/* Do the transaction */
$session = $manager->startSession();
$session->startTransaction( [
'readConcern' => new \MongoDB\Driver\ReadConcern( "snapshot" ),
'writeConcern' => new \MongoDB\Driver\WriteConcern( \MongoDB\Driver\WriteConcern::MAJORITY )
] );
while (true) {
try {
$cmd = new \MongoDB\Driver\Command( [
'update' => $EMPLOYEES_COL,
'updates' => [
[
'q' => [ 'employee' => 3 ],
'u' => [ '$set' => [ 'status' => 'Inactive' ] ],
]
]
] );
$manager->executeCommand(DATABASE_NAME, $cmd, ['session' => $session]);
$cmd = new \MongoDB\Driver\Command( [
'insert' => $EVENTS_COL,
'documents' => [
[ 'employee' => 3, 'status' => [ 'new' => 'Inactive', 'old' => 'Active' ] ]
]
] );
$manager->executeCommand(DATABASE_NAME, $cmd, ['session' => $session]);
$session->commitTransaction();
echo "Transaction committed.\n";break;
} catch (\MongoDB\Driver\Exception\CommandException $e) {
$rd = $e->getResultDocument();
if (isset($rd->errorLabels) && in_array('TransientTransactionError', $rd->errorLabels)) {
echo "Temporary error: ", $e->getMessage(), ", retrying...\n";
$rd = $e->getResultDocument();
var_dump($rd);
continue;
} else {
var_dump($e);
}
break;
}
}
?>
===DONE===
<?php exit(0); ?>
--EXPECTF--
Transaction committed.
===DONE===
|
