PhabricatorSubscriptionsSearchEngineAttachment.php
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PhabricatorSubscriptionsSearchEngineAttachment.php
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	<?php

	final class PhabricatorSubscriptionsSearchEngineAttachment
	extends PhabricatorSearchEngineAttachment {

	public function getAttachmentName() {
	return pht('Subscribers');
	}

	public function getAttachmentDescription() {
	return pht('Get information about subscribers.');
	}

	public function loadAttachmentData(array $objects, $spec) {
	$object_phids = mpull($objects, 'getPHID');
	$edge_type = PhabricatorObjectHasSubscriberEdgeType::EDGECONST;


	$subscribers_query = id(new PhabricatorEdgeQuery())
	->withSourcePHIDs($object_phids)
	->withEdgeTypes(array($edge_type));
	$subscribers_query->execute();

	$viewer = $this->getViewer();
	$viewer_phid = $viewer->getPHID();
	if ($viewer) {
	$edges = id(new PhabricatorEdgeQuery())
	->withSourcePHIDs($object_phids)
	->withEdgeTypes(array($edge_type))
	->withDestinationPHIDs(array($viewer_phid))
	->execute();

	$viewer_map = array();
	foreach ($edges as $object_phid => $types) {
	if ($types[$edge_type]) {
	$viewer_map[$object_phid] = true;
	}
	}
	} else {
	$viewer_map = array();
	}

	return array(
	'subscribers.query' => $subscribers_query,
	'viewer.map' => $viewer_map,
	);
	}

	public function getAttachmentForObject($object, $data, $spec) {
	$subscribers_query = idx($data, 'subscribers.query');
	$viewer_map = idx($data, 'viewer.map');
	$object_phid = $object->getPHID();

	$subscribed_phids = $subscribers_query->getDestinationPHIDs(
	array($object_phid),
	array(PhabricatorObjectHasSubscriberEdgeType::EDGECONST));
	$subscribed_count = count($subscribed_phids);
	if ($subscribed_count > 10) {
	$subscribed_phids = array_slice($subscribed_phids, 0, 10);
	}

	$subscribed_phids = array_values($subscribed_phids);

	$viewer = $this->getViewer();
	$viewer_phid = $viewer->getPHID();

	if (!$viewer_phid) {
	$self_subscribed = false;
	} else if (isset($viewer_map[$object_phid])) {
	$self_subscribed = true;
	} else if ($object->isAutomaticallySubscribed($viewer_phid)) {
	$self_subscribed = true;
	} else {
	$self_subscribed = false;
	}

	return array(
	'subscriberPHIDs' => $subscribed_phids,
	'subscriberCount' => $subscribed_count,
	'viewerIsSubscribed' => $self_subscribed,
	);
	}

	}

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