PonderAnswerCommentController.php
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	<?php

	final class PonderAnswerCommentController extends PonderController {

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

	if (!$request->isFormPost()) {
	return new Aphront400Response();
	}

	$answer = id(new PonderAnswerQuery())
	->setViewer($viewer)
	->withIDs(array($id))
	->executeOne();
	if (!$answer) {
	return new Aphront404Response();
	}

	$is_preview = $request->isPreviewRequest();

	$qid = $answer->getQuestion()->getID();
	$aid = $answer->getID();

	// TODO, this behaves badly when redirecting to the answer
	$view_uri = "/Q{$qid}";

	$xactions = array();
	$xactions[] = id(new PonderAnswerTransaction())
	->setTransactionType(PhabricatorTransactions::TYPE_COMMENT)
	->attachComment(
	id(new PonderAnswerTransactionComment())
	->setContent($request->getStr('comment')));

	$editor = id(new PonderAnswerEditor())
	->setActor($viewer)
	->setContinueOnNoEffect($request->isContinueRequest())
	->setContentSourceFromRequest($request)
	->setIsPreview($is_preview);

	try {
	$xactions = $editor->applyTransactions($answer, $xactions);
	} catch (PhabricatorApplicationTransactionNoEffectException $ex) {
	return id(new PhabricatorApplicationTransactionNoEffectResponse())
	->setCancelURI($view_uri)
	->setException($ex);
	}


	if ($request->isAjax() && $is_preview) {
	return id(new PhabricatorApplicationTransactionResponse())
	->setViewer($viewer)
	->setTransactions($xactions)
	->setIsPreview($is_preview);
	} else {
	return id(new AphrontRedirectResponse())
	->setURI($view_uri);
	}
	}

	}