PhabricatorRepositorySymbolSourcesTransaction.php
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	<?php

	final class PhabricatorRepositorySymbolSourcesTransaction
	extends PhabricatorRepositoryTransactionType {

	const TRANSACTIONTYPE = 'repo:symbol-source';

	public function generateOldValue($object) {
	return $object->getSymbolSources();
	}

	public function applyInternalEffects($object, $value) {
	$object->setDetail('symbol-sources', $value);
	}

	public function getTitle() {
	$old = $this->getOldValue();
	$new = $this->getNewValue();

	if ($old) {
	$display_old = $this->renderHandleList($old);
	} else {
	$display_old = $this->renderValue(pht('None'));
	}

	if ($new) {
	$display_new = $this->renderHandleList($new);
	} else {
	$display_new = $this->renderValue(pht('None'));
	}

	return pht(
	'%s changed symbol sources from %s to %s.',
	$this->renderAuthor(),
	$display_old,
	$display_new);
	}

	public function validateTransactions($object, array $xactions) {
	$errors = array();

	foreach ($xactions as $xaction) {
	$old = $object->getSymbolSources();
	$new = $xaction->getNewValue();

	// If the viewer is adding new repositories, make sure they are
	// valid and visible.
	$add = array_diff($new, $old);
	if (!$add) {
	continue;
	}

	$repositories = id(new PhabricatorRepositoryQuery())
	->setViewer($this->getActor())
	->withPHIDs($add)
	->execute();
	$repositories = mpull($repositories, null, 'getPHID');

	foreach ($add as $phid) {
	if (isset($repositories[$phid])) {
	continue;
	}

	$errors[] = $this->newInvalidError(
	pht(
	'Repository ("%s") does not exist, or you do not have '.
	'permission to see it.',
	$phid),
	$xaction);
	break;
	}
	}

	return $errors;
	}


	}