/**
* Save user's answer to a question.
* Create a new record in user_answers table
* if this is the first time this user answers this question,
* Otherwise update the user's answer.
*
* @param Request $request
* @return 1 on success, 0 on failure.
*/
public function save(Request $request)
{
$userAnswer = UserAnswer::where(['user_id' => $request->user()->id, 'question_id' => $request->questionId])->first();
if ($userAnswer) {
$userAnswer->answer_id = $request->answerId;
} else {
$userAnswer = new UserAnswer(['user_id' => $request->user()->id, 'question_id' => $request->questionId, 'answer_id' => $request->answerId]);
}
if ($userAnswer->save()) {
return 1;
} else {
return 0;
}
}
/**
* Get user's answer to current question
*/
public function userAnswer()
{
return $userAnswer = UserAnswer::where(['user_id' => Auth::user()->id, 'question_id' => $this->id])->first();
}