HarbormasterPlanOrderController.php
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	<?php

	final class HarbormasterPlanOrderController extends HarbormasterController {

	private $id;

	public function willProcessRequest(array $data) {
	$this->id = idx($data, 'id');
	}

	public function processRequest() {
	$request = $this->getRequest();
	$user = $request->getUser();

	$request->validateCSRF();

	$this->requireApplicationCapability(
	HarbormasterManagePlansCapability::CAPABILITY);

	$plan = id(new HarbormasterBuildPlanQuery())
	->setViewer($user)
	->withIDs(array($this->id))
	->executeOne();
	if (!$plan) {
	return new Aphront404Response();
	}

	// Load all steps.
	$order = $request->getStrList('order');
	$steps = id(new HarbormasterBuildStepQuery())
	->setViewer($user)
	->withIDs($order)
	->execute();
	$steps = array_select_keys($steps, $order);
	$reordered_steps = array();

	// Apply sequences.
	$sequence = 1;
	foreach ($steps as $step) {
	$step->setSequence($sequence++);
	$step->save();

	$reordered_steps[] = $step;
	}

	// NOTE: Reordering steps may invalidate artifacts. This is fine; the UI
	// will show that there are ordering issues.

	// Force the page to re-render.
	return id(new AphrontRedirectResponse());
	}

	}