ReleephDependsOnFieldSpecification.php
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	<?php

	final class ReleephDependsOnFieldSpecification
	extends ReleephFieldSpecification {
	public function getFieldKey() {
	return 'dependsOn';
	}

	public function getName() {
	return pht('Depends On');
	}

	public function renderValueForHeaderView() {
	$revision_phids = $this->getDependentRevisionPHIDs();
	if (!$revision_phids) {
	return null;
	}

	$links = array();
	$handles = id(new PhabricatorHandleQuery())
	->setViewer($this->getUser())
	->withPHIDs($revision_phids)
	->execute();
	foreach ($revision_phids as $revision_phid) {
	$links[] = id(clone $handles[$revision_phid])
	// Hack to remove the strike-through rendering of diff links
	->setStatus(null)
	->renderLink();
	}

	return phutil_implode_html(phutil_tag('br'), $links);
	}

	private function getDependentRevisionPHIDs() {
	$revision = $this
	->getReleephRequest()
	->loadDifferentialRevision();
	if (!$revision) {
	return null;
	}

	return PhabricatorEdgeQuery::loadDestinationPHIDs(
	$revision->getPHID(),
	PhabricatorEdgeConfig::TYPE_DREV_DEPENDS_ON_DREV);
	}
	}