PonderQuestionViewController.php
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PonderQuestionViewController.php
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	<?php

	final class PonderQuestionViewController extends PonderController {

	public function shouldAllowPublic() {
	return true;
	}

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

	$question = id(new PonderQuestionQuery())
	->setViewer($viewer)
	->withIDs(array($id))
	->needAnswers(true)
	->needProjectPHIDs(true)
	->executeOne();
	if (!$question) {
	return new Aphront404Response();
	}

	$answers = $this->buildAnswers($question);

	$answer_add_panel = id(new PonderAddAnswerView())
	->setQuestion($question)
	->setUser($viewer)
	->setActionURI('/ponder/answer/add/');

	$header = new PHUIHeaderView();
	$header->setHeader($question->getTitle());
	$header->setUser($viewer);
	$header->setPolicyObject($question);
	$header->setHeaderIcon('fa-university');

	if ($question->getStatus() == PonderQuestionStatus::STATUS_OPEN) {
	$header->setStatus('fa-square-o', 'bluegrey', pht('Open'));
	} else {
	$text = PonderQuestionStatus::getQuestionStatusFullName(
	$question->getStatus());
	$icon = PonderQuestionStatus::getQuestionStatusIcon(
	$question->getStatus());
	$header->setStatus($icon, 'dark', $text);
	}

	$curtain = $this->buildCurtain($question);
	$details = $this->buildPropertySectionView($question);

	$can_edit = PhabricatorPolicyFilter::hasCapability(
	$viewer,
	$question,
	PhabricatorPolicyCapability::CAN_EDIT);

	$content_id = celerity_generate_unique_node_id();
	$timeline = $this->buildTransactionTimeline(
	$question,
	id(new PonderQuestionTransactionQuery())
	->withTransactionTypes(array(PhabricatorTransactions::TYPE_COMMENT)));
	$xactions = $timeline->getTransactions();

	$add_comment = id(new PhabricatorApplicationTransactionCommentView())
	->setUser($viewer)
	->setObject($question)
	->setShowPreview(false)
	->setAction($this->getApplicationURI("/question/comment/{$id}/"))
	->setSubmitButtonName(pht('Comment'));

	$add_comment = phutil_tag_div(
	'ponder-question-add-comment-view', $add_comment);

	$comment_view = phutil_tag(
	'div',
	array(
	'id' => $content_id,
	'style' => 'display: none;',
	),
	array(
	$timeline,
	$add_comment,
	));

	$footer = id(new PonderFooterView())
	->setContentID($content_id)
	->setCount(count($xactions));

	$crumbs = $this->buildApplicationCrumbs();
	$crumbs->addTextCrumb('Q'.$id, '/Q'.$id);
	$crumbs->setBorder(true);

	$subheader = $this->buildSubheaderView($question);

	$answer_wiki = null;
	if ($question->getAnswerWiki()) {
	$wiki = new PHUIRemarkupView($viewer, $question->getAnswerWiki());
	$answer_wiki = id(new PHUIObjectBoxView())
	->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
	->setHeaderText(pht('Answer Summary'))
	->appendChild($wiki)
	->addClass('ponder-answer-wiki');
	}

	require_celerity_resource('ponder-view-css');

	$ponder_content = phutil_tag(
	'div',
	array(
	'class' => 'ponder-question-content',
	),
	array(
	$answer_wiki,
	$footer,
	$comment_view,
	$answers,
	$answer_add_panel,
	));

	$ponder_view = id(new PHUITwoColumnView())
	->setHeader($header)
	->setSubheader($subheader)
	->setCurtain($curtain)
	->setMainColumn($ponder_content)
	->addPropertySection(pht('Details'), $details)
	->addClass('ponder-question-view');

	$page_objects = array_merge(
	array($question->getPHID()),
	mpull($question->getAnswers(), 'getPHID'));

	return $this->newPage()
	->setTitle('Q'.$question->getID().' '.$question->getTitle())
	->setCrumbs($crumbs)
	->setPageObjectPHIDs($page_objects)
	->appendChild($ponder_view);
	}

	private function buildCurtain(PonderQuestion $question) {
	$viewer = $this->getViewer();
	$id = $question->getID();

	$can_edit = PhabricatorPolicyFilter::hasCapability(
	$viewer,
	$question,
	PhabricatorPolicyCapability::CAN_EDIT);

	$curtain = $this->newCurtainView($question);

	if ($question->getStatus() == PonderQuestionStatus::STATUS_OPEN) {
	$name = pht('Close Question');
	$icon = 'fa-check-square-o';
	} else {
	$name = pht('Reopen Question');
	$icon = 'fa-square-o';
	}

	$curtain->addAction(
	id(new PhabricatorActionView())
	->setIcon('fa-pencil')
	->setName(pht('Edit Question'))
	->setHref($this->getApplicationURI("/question/edit/{$id}/"))
	->setDisabled(!$can_edit)
	->setWorkflow(!$can_edit));

	$curtain->addAction(
	id(new PhabricatorActionView())
	->setName($name)
	->setIcon($icon)
	->setWorkflow(true)
	->setDisabled(!$can_edit)
	->setHref($this->getApplicationURI("/question/status/{$id}/")));

	$curtain->addAction(
	id(new PhabricatorActionView())
	->setIcon('fa-list')
	->setName(pht('View History'))
	->setHref($this->getApplicationURI("/question/history/{$id}/")));

	return $curtain;
	}

	private function buildSubheaderView(
	PonderQuestion $question) {
	$viewer = $this->getViewer();

	$asker = $viewer->renderHandle($question->getAuthorPHID())->render();
	$date = phabricator_datetime($question->getDateCreated(), $viewer);
	$asker = phutil_tag('strong', array(), $asker);

	$author = id(new PhabricatorPeopleQuery())
	->setViewer($viewer)
	->withPHIDs(array($question->getAuthorPHID()))
	->needProfileImage(true)
	->executeOne();

	$image_uri = $author->getProfileImageURI();
	$image_href = '/p/'.$author->getUsername();

	$content = pht('Asked by %s on %s.', $asker, $date);

	return id(new PHUIHeadThingView())
	->setImage($image_uri)
	->setImageHref($image_href)
	->setContent($content);
	}

	private function buildPropertySectionView(
	PonderQuestion $question) {
	$viewer = $this->getViewer();

	$question_details = PhabricatorMarkupEngine::renderOneObject(
	$question,
	$question->getMarkupField(),
	$viewer);

	if (!$question_details) {
	$question_details = phutil_tag(
	'em',
	array(),
	pht('No further details for this question.'));
	}

	$question_details = phutil_tag_div(
	'phabricator-remarkup ml', $question_details);

	return $question_details;
	}

	/**
	* This is fairly non-standard; building N timelines at once (N = number of
	* answers) is tricky business.
	*
	* TODO - re-factor this to ajax in one answer panel at a time in a more
	* standard fashion. This is necessary to scale this application.
	*/
	private function buildAnswers(PonderQuestion $question) {
	$viewer = $this->getViewer();
	$answers = $question->getAnswers();

	if ($answers) {
	$author_phids = mpull($answers, 'getAuthorPHID');
	$handles = $this->loadViewerHandles($author_phids);

	$view = array();
	foreach ($answers as $answer) {
	$id = $answer->getID();
	$handle = $handles[$answer->getAuthorPHID()];

	$timeline = $this->buildTransactionTimeline(
	$answer,
	id(new PonderAnswerTransactionQuery())
	->withTransactionTypes(array(PhabricatorTransactions::TYPE_COMMENT)));
	$xactions = $timeline->getTransactions();

	$view[] = id(new PonderAnswerView())
	->setUser($viewer)
	->setAnswer($answer)
	->setTransactions($xactions)
	->setTimeline($timeline)
	->setHandle($handle);

	}

	$header = id(new PHUIHeaderView())
	->setHeader('Answers');


	return id(new PHUIBoxView())
	->addClass('ponder-answer-section')
	->appendChild($header)
	->appendChild($view);
	}

	return null;

	}

	}

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