public function actionAnswer($labelid = 1, $questionid = 1)
{
$session = Yii::$app->session;
//获取问题及相关答案
$question = Questions::find()->where(['labelid' => $labelid, 'questionid' => $questionid])->one();
$answers = $question->answers;
$answerform = new AnswerForm();
if ($answerform->load(Yii::$app->request->post()) && $answerform->validate() && !empty($session['user'])) {
//插入回答
$answer = new Answers();
$answer->labelid = $labelid;
$answer->questionid = $questionid;
$maxanswerid = Answers::find()->where(['labelid' => $labelid, 'questionid' => $questionid])->orderBy('answerid desc')->one();
$maxanswerid = $maxanswerid['answerid'];
if (empty($maxanswerid)) {
$maxanswerid = 0;
}
$answer->answerid = $maxanswerid + 1;
$answer->answerer = $session['username'];
$answer->answer = $answerform->answer;
$answer->save();
return $this->redirect(Yii::$app->request->getUrl());
}
return $this->render('answer', ['answerform' => $answerform, 'question' => $question, 'answers' => $answers]);
}
public function getAnswers()
{
return Answers::with("question")->get();
}
public function getAnswers()
{
return $this->hasMany(Answers::className(), ['labelid' => 'labelid', 'questionid' => 'questionid'])->orderBy('answerid')->asArray();
}