public function run()
{
$cacheKey = md5(__METHOD__);
if (false === ($items = \Yii::$app->cache->get($cacheKey))) {
$parents = ArrayHelper::map(PostMeta::find()->where(['parent' => null])->orWhere(['parent' => 0])->orderBy(['order' => SORT_ASC])->all(), 'id', 'name');
foreach ($parents as $key => $value) {
$nodes[$value] = PostMeta::find()->where(['parent' => $key])->asArray()->all();
}
$items = $nodes;
//一天缓存
\Yii::$app->cache->set($cacheKey, $items, 86400, new TagDependency(['tags' => [NamingHelper::getCommonTag(PostMeta::className())]]));
}
return $this->render('node', ['nodes' => $items]);
}
public function getCategory()
{
return $this->hasOne(PostMeta::className(), ['id' => 'post_meta_id']);
}
/**
* @return \yii\db\ActiveQuery
*/
public function getPostMeta()
{
return $this->hasMany(PostMeta::className(), ['post_id' => 'id']);
}