public function actionIndex($labelid = 1)
{
//查找所有的标签
$labels = Labels::find()->asArray()->all();
//根据标签ID查找问题
$label = Labels::find()->where(['labelid' => $labelid])->one();
$questions = $label->questions;
//提问表
$session = Yii::$app->session;
$askform = new AskForm();
//添加问题
if (!empty($session['user'])) {
if ($askform->load(Yii::$app->request->post()) && $askform->validate()) {
$ask = new Questions();
$ask->labelid = $labelid;
$maxid = Questions::find()->where(['labelid' => $labelid])->orderBy('questionid desc')->one();
if (empty($maxid)) {
$maxid = 1;
} else {
$maxid = $maxid['questionid'];
}
$ask->questionid = $maxid + 1;
$ask->host = $session['username'];
$ask->title = $askform->title;
$ask->question = $askform->question;
$ask->save();
return $this->redirect(Yii::$app->request->getUrl());
}
} else {
echo "未登录";
}
return $this->render('index', ['labelid' => $labelid, 'labels' => $labels, 'questions' => $questions, 'askform' => $askform]);
}
public function getLabel()
{
return $this->hasOne(Labels::classname(), ['labelid' => 'labelid']);
}
}
?>
<br>
<?php
echo Html::encode('标签：');
foreach ($labels as $label) {
?>
<?php
echo Html::tag('a', Html::encode($label['name']), ['href' => '?r=forum/index&labelid=' . $label['labelid']]);
}
?>
<?php
echo '<br>';
$l = Labels::find()->where(['labelid' => $labelid])->one();
echo '首页>' . $l->name . '>';
?>
<?php
foreach ($questions as $question) {
?>
<li>
<?php
echo Html::tag('a', Html::encode($question['title']), ['href' => '?r=forum/answer&labelid=' . $question['labelid'] . '&questionid=' . $question['questionid']]);
?>
</li>
<?php
}
?>
