Isuue在查询中（订购产品）

Question

我想按价格订购产品，一个链接从低到高，另一个从高到低，但点击“从低到高”或“从高到低”顺序不是改变，它保持在同一页面上，但网址正在改变。 我试图调试查询，我得到：“select * from products where categorie_id =？order by price asc”是否意味着它不能从类别表中找到id？ 如果是，我找不到什么问题

这是控制器的功能：

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')); 
    } 
} 

这是路线：

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

这些都是从链接查看，视图为content.products

<a href=" {{ url('shop/'.$category['url'].'/sorting-asc')}}" style="color:black"> High to low</a> | 
    <a href=" {{ url('shop/'.$category['url'].'/sorting-desc')}}" style="color:black">Low to high</a> 

该型号：

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(); 
     } 
    } 
} 

Answer 1

这里是我会怎么做：

public function products(Request $request, $category_url, $sort= 'ASC'){ 

    $category1 = Categorie::where('url', '=', $category_url)->first(); 
    $products = Product::where('categorie_id', $category1->id)->orderBy('price', $sort)->get(); 
    return view('content.products', ['products' => $products, 'sort' => $sort, 'category' => $category1]); 
}