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DrydockResourceReleaseController.php
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			<?php

			final class DrydockResourceReleaseController extends DrydockResourceController {

			public function handleRequest(AphrontRequest $request) {
			$viewer = $request->getViewer();
			$id = $request->getURIData('id');

			$resource = id(new DrydockResourceQuery())
			->setViewer($viewer)
			->withIDs(array($id))
			->requireCapabilities(
			array(
			PhabricatorPolicyCapability::CAN_VIEW,
			PhabricatorPolicyCapability::CAN_EDIT,
			))
			->executeOne();
			if (!$resource) {
			return new Aphront404Response();
			}

			$resource_uri = '/resource/'.$resource->getID().'/';
			$resource_uri = $this->getApplicationURI($resource_uri);

			if (!$resource->canRelease()) {
			return $this->newDialog()
			->setTitle(pht('Resource Not Releasable'))
			->appendParagraph(
			pht(
			'Resources can not be released after they are destroyed.'))
			->addCancelButton($resource_uri);
			}

			if ($request->isFormPost()) {
			$command = DrydockCommand::initializeNewCommand($viewer)
			->setTargetPHID($resource->getPHID())
			->setCommand(DrydockCommand::COMMAND_RELEASE)
			->save();

			$resource->scheduleUpdate();

			return id(new AphrontRedirectResponse())->setURI($resource_uri);
			}


			return $this->newDialog()
			->setTitle(pht('Really release resource?'))
			->appendChild(
			pht(
			'Releasing a resource releases all leases and destroys the '.
			'resource. It can not be undone.'))
			->addSubmitButton(pht('Release Resource'))
			->addCancelButton($resource_uri);
			}

			}