Question

如何将所有父类别与它们的子类别链接放在一页上，结构如下：

在同一页面上是所有父类别；当您单击类别时，其新类别将显示在新页面上。

CategoryController：

public function actionIndex(){
    return $this->render('index', [
        'model' => $this->outTree($id)
    ]);
}

public function getAllArray(){
    $all = Category::find()->all();
    $array = array();
    foreach($all as $v){
        $array[$v->parentId][] = $v;
    }
    return $array;
}

public function outTree($parentId) {
    $array = $this->getAllArray();
    if(isset($array[$parentId])){
        echo '<div>';
        foreach($array[$parentId] as $v){
            echo '<div>'.$v->name.'</div>';
            echo '<div>'.$v->id.'</div>';
            echo '<div>'.$v->parentId.'</div>';
            $this->outTree($v->id);
        }
        echo '</div>';
    }
} 

protected function findModel($alias)
{
    if (($model = Category::findOne(['alias' => $alias, 'active' => 1])) !== null) {
        return $model;
    } else {
        throw new NotFoundHttpException('The requested page does not exist.');
    }
}

父类别与子类别的关系

public function getParent()
{
    return $this->hasOne(Category::className(), ['id' => 'parentId']);
}

现在输出进入控制器，如何在视图中做出这样的结论？目前，所有父类别及其子类别都显示在同一页面上。我需要在UrlManager中注册某些内容吗？

Answer 1

您可以这样做：

您的控制器：

this.HasKey(i => new {i.IntegrationId, i.Id});

您查看页面（索引）：

namespace NewSequentialId
{
    public class SQLGuidUtil
    {
        static object synclock = new object();
        static uint seq = 0;
        static byte[] seed = Guid.NewGuid().ToByteArray();
        public static Guid NewSequentialId()
        {
            uint nextVal;
            byte[] buf;

            lock (synclock)
            {
                nextVal = seq++;
                buf = (byte[])seed.Clone();

                if (nextVal == 0xFFFFFFFF)
                {
                    seed = Guid.NewGuid().ToByteArray();
                    seq = 0;
                }
            }

            var seqbytes = BitConverter.GetBytes(nextVal);

            if (BitConverter.IsLittleEndian)
            {
                buf[0] = seqbytes[3];
                buf[1] = seqbytes[2];
                buf[2] = seqbytes[1];
                buf[3] = seqbytes[0];
            }
            else
            {
                buf[0] = seqbytes[0];
                buf[1] = seqbytes[1];
                buf[2] = seqbytes[2];
                buf[3] = seqbytes[3];
            }

            return new Guid(buf);
        }
    }
}

您的查看页面（子页面）：

public function actionIndex($parentId = null){
    $models = Category::find()->andWhere(['parent_id' => $parentId])->all();

    return $this->render('index', [
        'models' => $models
    ]);
}

public function actionGetChilds($parentId){
        $models = Children::find()->andWhere(['parent_id' => $parentId])->all();

        return $this->render('childs', [
            'models' => $models
        ]);
    }

注意：我认为您在“类别”中有另一个名为GetChildern的关系模型，您可以在索引操作中使用它来按类别获取所有子类别这个foreach($models as $model): echo Html::a($model->name, Url::to(['index', 'parentId' => $model->parent_id])); endforeach;

结论类别与子类别

1 个答案: