php – 按类别id laravel检索帖子

我想检索给定类别的所有帖子,
我正在开发api,在输入中我将收到类别名称,然后我想通过其在posts表中的id检索该类别,我想这样做,因为如果将来某些更改的类别名称我不必在我的更改码
我创造了这样的

PostController.PHP

  public function getPostsByCategory(Request $request)
{

    $posts=Posts::where('category',$request->category)->get();
    return response()->json(['posts'=>$posts]); 
}

发布模型

<?PHP

 namespace App;

 use Illuminate\Database\Eloquent\Model;

class Posts extends Model
{   

protected $fillable = [
    'post_title','post_description', 'category', 'user_id',
];

分类模型

<?PHP

namespace App;

use Illuminate\Database\Eloquent\Model;

class Posts_Category extends Model
{

}

能帮到我吗,请建议我

解决方法:

您可以先按名称获取类别,然后按类别ID过滤帖子

public function getPostsByCategory(Request $request)
{
    $category = Posts_Category::whereName($request->category)->firstOrFail();
    $posts=Posts::where('category',$category->id)->get();
    return response()->json(['posts'=>$posts]); 
}