/**
*
* @param ProjectModel $projectModel
* @param string $questionId
* @param string $answerId
* @param AnswerModel $answerModel
* @return string activity id
*/
public static function updateAnswer($projectModel, $questionId, $answerModel, $mode = "update")
{
$activity = new ActivityModel($projectModel);
$question = new QuestionModel($projectModel, $questionId);
$text = new TextModel($projectModel, $question->textRef->asString());
$user = new UserModel($answerModel->userRef->asString());
$activity->action = $mode == "update" ? ActivityModel::UPDATE_ANSWER : ActivityModel::ADD_ANSWER;
$activity->userRef->id = $answerModel->userRef->asString();
$activity->textRef->id = $text->id->asString();
$activity->questionRef->id = $questionId;
$activity->addContent(ActivityModel::TEXT, $text->title);
$activity->addContent(ActivityModel::QUESTION, $question->getTitleForDisplay());
$activity->addContent(ActivityModel::ANSWER, $answerModel->content);
$activity->addContent(ActivityModel::USER, $user->username);
$activityId = $activity->write();
UnreadActivityModel::markUnreadForProjectMembers($activityId, $projectModel);
UnreadAnswerModel::markUnreadForProjectMembers($answerModel->id->asString(), $projectModel, $questionId, $answerModel->userRef->asString());
return $activityId;
}
