Php 按价格在laravel发布订购产品

我想按价格订购产品，一个链接从低到高，另一个链接从高到低， 但在我点击“从低到高”或“从高到低”后，顺序没有改变，它保持在同一页面上，但url正在改变

这是控制器中的功能：

public function products(Request $request, $category_url, $sort= 'ASC')
{
    Product::getProducts($category_url, self:: $data);

    if ( $category1 = Categorie::where('url', '=', $category_url)->first() ) {

        $products = Product::where('categorie_id', $category1->getAttribute('id'))->orderBy('price', $sort)->get();

        return view('content.products', self::$data , compact('products', 'sort')); 
    }
}

if ( $category1 = Categorie::where('url', '=', $category_url)->first() ) {

    $products = Product::where('categorie_id', $category1->getAttribute('id'));
    $products = strtolower($sort) == 'asc' ? $products->orderBy('price'):$products->orderByDesc('price');
    $products = $products->get();

    return view('content.products', self::$data , compact('products', 'sort')); 
}

这是路线：

  Route::get('shop/{category_url}/sorting-{sort?}', 'ShopController@products');

这些是来自视图的链接，视图是content.products

|

模型：

class Product extends Model {


static public function getProducts($category_url, &$data){

    $data['products']=$data['category']=[];


    if ($category=Categorie::where('url','=', $category_url)->first()){

        $category= $category->toArray();
        $data['category']=$category;
        $data['title']=$data['title']. ' | ' . $category['title'];


        if ($products=Categorie::find( $category['id'])->products){

            $data['products']= $products->toArray();
        }
    }
}

---

在控制器中尝试以下操作：

public function products(Request $request, $category_url, $sort= 'ASC')
{
    Product::getProducts($category_url, self:: $data);

    if ( $category1 = Categorie::where('url', '=', $category_url)->first() ) {

        $products = Product::where('categorie_id', $category1->getAttribute('id'))->orderBy('price', $sort)->get();

        return view('content.products', self::$data , compact('products', 'sort')); 
    }
}

if ( $category1 = Categorie::where('url', '=', $category_url)->first() ) {

    $products = Product::where('categorie_id', $category1->getAttribute('id'));
    $products = strtolower($sort) == 'asc' ? $products->orderBy('price'):$products->orderByDesc('price');
    $products = $products->get();

    return view('content.products', self::$data , compact('products', 'sort')); 
}

---

将其更改为此，但订单仍然没有更改，产品保持相同的订单，因此问题在于您的查询尝试检查查询。我检查了查询，得到：“选择*自

产品
其中
分类id
=？按
价格
描述订购”问题在分类id中？