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NuanceItemActionController.php
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Created
Thu, Apr 24, 07:08

NuanceItemActionController.php
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<?php
final class NuanceItemActionController extends NuanceController {
public function handleRequest(AphrontRequest $request) {
$viewer = $this->getViewer();
$id = $request->getURIData('id');
if (!$request->validateCSRF()) {
return new Aphront400Response();
}
// NOTE: This controller can be reached from an individual item (usually
// by a user) or while working through a queue (usually by staff). When
// a command originates from a queue, the URI will have a queue ID.
$item = id(new NuanceItemQuery())
->setViewer($viewer)
->withIDs(array($id))
->executeOne();
if (!$item) {
return new Aphront404Response();
}
$cancel_uri = $item->getURI();
$queue_id = $request->getURIData('queueID');
$queue = null;
if ($queue_id) {
$queue = id(new NuanceQueueQuery())
->setViewer($viewer)
->withIDs(array($queue_id))
->executeOne();
if (!$queue) {
return new Aphront404Response();
}
$item_queue = $item->getQueue();
if (!$item_queue || ($item_queue->getPHID() != $queue->getPHID())) {
return $this->newDialog()
->setTitle(pht('Wrong Queue'))
->appendParagraph(
pht(
'You are trying to act on this item from the wrong queue: it '.
'is currently in a different queue.'))
->addCancelButton($cancel_uri);
}
}
$action = $request->getURIData('action');
$impl = $item->getImplementation();
$impl->setViewer($viewer);
$impl->setController($this);
$executors = NuanceCommandImplementation::getAllCommands();
$executor = idx($executors, $action);
if (!$executor) {
return new Aphront404Response();
}
$executor = id(clone $executor)
->setActor($viewer);
if (!$executor->canApplyToItem($item)) {
return $this->newDialog()
->setTitle(pht('Command Not Supported'))
->appendParagraph(
pht(
'This item does not support the specified command ("%s").',
$action))
->addCancelButton($cancel_uri);
}
$command = NuanceItemCommand::initializeNewCommand()
->setItemPHID($item->getPHID())
->setAuthorPHID($viewer->getPHID())
->setCommand($action);
if ($queue) {
$command->setQueuePHID($queue->getPHID());
}
$command->save();
// If this command can be applied immediately, try to apply it now.
// In most cases, local commands (like closing an item) can be applied
// immediately.
// Commands that require making a call to a remote system (for example,
// to reply to a tweet or close a remote object) are usually done in the
// background so the user doesn't have to wait for the operation to
// complete before they can continue work.
$did_apply = false;
$immediate = $executor->canApplyImmediately($item, $command);
if ($immediate) {
// TODO: Move this stuff to a new Engine, and have the controller and
// worker both call into the Engine.
$worker = new NuanceItemUpdateWorker(array());
$did_apply = $worker->executeCommands($item, array($command));
}
// If this can't be applied immediately or we were unable to get a lock
// fast enough, do the update in the background instead.
if (!$did_apply) {
$item->scheduleUpdate();
}
if ($queue) {
$done_uri = $queue->getWorkURI();
} else {
$done_uri = $item->getURI();
}
return id(new AphrontRedirectResponse())
->setURI($done_uri);
}
}

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