/**
* @param Discussion $discussion
* @param User $user
* @param $isLocked
*/
protected function lockedChanged(Discussion $discussion, User $user, $isLocked)
{
$post = DiscussionLockedPost::reply($discussion->id, $user->id, $isLocked);
$post = $discussion->mergePost($post);
if ($discussion->start_user_id !== $user->id) {
$notification = new DiscussionLockedBlueprint($post);
$this->notifications->sync($notification, $post->exists ? [$discussion->startUser] : []);
}
}
/**
* @param StartDiscussion $command
* @return mixed
* @throws Exception
*/
public function handle(StartDiscussion $command)
{
$actor = $command->actor;
$data = $command->data;
$this->assertCan($actor, 'startDiscussion');
// Create a new Discussion entity, persist it, and dispatch domain
// events. Before persistence, though, fire an event to give plugins
// an opportunity to alter the discussion entity based on data in the
// command they may have passed through in the controller.
$discussion = Discussion::start(array_get($data, 'attributes.title'), $actor);
$this->events->fire(new DiscussionWillBeSaved($discussion, $actor, $data));
$this->validator->assertValid($discussion->getAttributes());
$discussion->save();
// Now that the discussion has been created, we can add the first post.
// We will do this by running the PostReply command.
try {
$post = $this->bus->dispatch(new PostReply($discussion->id, $actor, $data));
} catch (Exception $e) {
$discussion->delete();
throw $e;
}
// Before we dispatch events, refresh our discussion instance's
// attributes as posting the reply will have changed some of them (e.g.
// last_time.)
$discussion->setRawAttributes($post->discussion->getAttributes(), true);
$discussion->setStartPost($post);
$discussion->setLastPost($post);
$this->dispatchEventsFor($discussion, $actor);
$discussion->save();
return $discussion;
}
/**
* {@inheritdoc}
*/
protected function getDefaultAttributes($discussion)
{
$gate = $this->gate->forUser($this->actor);
$attributes = parent::getDefaultAttributes($discussion) + ['commentsCount' => (int) $discussion->comments_count, 'participantsCount' => (int) $discussion->participants_count, 'startTime' => $this->formatDate($discussion->start_time), 'lastTime' => $this->formatDate($discussion->last_time), 'lastPostNumber' => (int) $discussion->last_post_number, 'canReply' => $gate->allows('reply', $discussion), 'canRename' => $gate->allows('rename', $discussion), 'canDelete' => $gate->allows('delete', $discussion), 'canHide' => $gate->allows('hide', $discussion)];
if ($discussion->hide_time) {
$attributes['isHidden'] = true;
$attributes['hideTime'] = $this->formatDate($discussion->hide_time);
}
Discussion::setStateUser($this->actor);
if ($state = $discussion->state) {
$attributes += ['readTime' => $this->formatDate($state->read_time), 'readNumber' => (int) $state->read_number];
}
return $attributes;
}
/**
* @param \Flarum\Core\Notification[] $notifications
*/
private function loadSubjectDiscussions(array $notifications)
{
$ids = [];
foreach ($notifications as $notification) {
if ($notification->subject && $notification->subject->discussion_id) {
$ids[] = $notification->subject->discussion_id;
}
}
$discussions = Discussion::find(array_unique($ids));
foreach ($notifications as $notification) {
if ($notification->subject && $notification->subject->discussion_id) {
$notification->subject->setRelation('discussion', $discussions->find($notification->subject->discussion_id));
}
}
}
/**
* @param $postIds
* @param User $actor
* @return mixed
*/
protected function getDiscussionsForPosts($postIds, User $actor)
{
return Discussion::query()->select('discussions.*')->join('posts', 'posts.discussion_id', '=', 'discussions.id')->whereIn('posts.id', $postIds)->groupBy('discussions.id')->whereVisibleTo($actor)->get();
}
/**
* @param Discussion $discussion
* @param User $actor
* @param int $offset
* @param int $limit
* @param array $include
* @return mixed
*/
private function loadPosts($discussion, $actor, $offset, $limit, array $include)
{
$query = $discussion->postsVisibleTo($actor);
$query->orderBy('time')->skip($offset)->take($limit)->with($include);
return $query->get()->all();
}
/**
* Get the IDs of discussions which a user has read completely.
*
* @param User $user
* @return array
*/
public function getReadIds(User $user)
{
return Discussion::leftJoin('users_discussions', 'users_discussions.discussion_id', '=', 'discussions.id')->where('user_id', $user->id)->where('read_number', '>=', new Expression('last_post_number'))->lists('id')->all();
}
protected function getDiscussionsForPosts($postIds, User $actor)
{
return Discussion::whereIn('id', function ($query) use($postIds) {
$query->select('discussion_id')->from('posts')->whereIn('id', $postIds);
})->whereVisibleTo($actor)->get();
}
/**
* @param SearchCriteria $criteria
* @param int|null $limit
* @param int $offset
* @param array $load An array of relationships to load on the results.
* @return SearchResults
*/
public function search(SearchCriteria $criteria, $limit = null, $offset = 0, array $load = [])
{
$actor = $criteria->actor;
$query = $this->discussions->query()->whereVisibleTo($actor);
// Construct an object which represents this search for discussions.
// Apply gambits to it, sort, and paging criteria. Also give extensions
// an opportunity to modify it.
$search = new DiscussionSearch($query->getQuery(), $actor);
$this->gambits->apply($search, $criteria->query);
$this->applySort($search, $criteria->sort);
$this->applyOffset($search, $offset);
$this->applyLimit($search, $limit + 1);
// TODO: inject dispatcher
event(new ConfigureDiscussionSearch($search, $criteria));
// Execute the search query and retrieve the results. We get one more
// results than the user asked for, so that we can say if there are more
// results. If there are, we will get rid of that extra result.
$discussions = $query->get();
$areMoreResults = $limit > 0 && $discussions->count() > $limit;
if ($areMoreResults) {
$discussions->pop();
}
// The relevant posts relationship isn't a typical Eloquent
// relationship; rather, we need to extract that information from our
// search object. We will delegate that task and prevent Eloquent
// from trying to load it.
if (in_array('relevantPosts', $load)) {
$this->loadRelevantPosts($discussions, $search);
$load = array_diff($load, ['relevantPosts', 'relevantPosts.discussion', 'relevantPosts.user']);
}
Discussion::setStateUser($actor);
$discussions->load($load);
return new SearchResults($discussions, $areMoreResults);
}
/**
* Refreshes count and last Post for the discussion.
*
* @param Discussion $discussion
*/
protected function refreshDiscussion(Discussion $discussion)
{
$discussion->refreshLastPost();
$discussion->refreshCommentsCount();
$discussion->refreshParticipantsCount();
// Persist the new statistics.
$discussion->save();
return Discussion::find($discussion->id);
}
/**
* @param Discussion $discussion
* @param User $user
* @param bool $isSticky
*/
protected function stickyChanged(Discussion $discussion, User $user, $isSticky)
{
$post = DiscussionStickiedPost::reply($discussion->id, $user->id, $isSticky);
$discussion->mergePost($post);
}
