Laravel从数据库获取ID以下载pdf刀片

Question

I am using dompdf currently and I encounter this issue where the id returns me pdf instead of the value I want such as 2 or 1 or 3.

Route:

Route::get('pdfview/{id}',array('as'=>'pdfview','uses'=>'pdfDownloadController@pdfview'));

I get the id pdf when I do something like this:

 public function pdfview($id)
    {
        dd($id); --> return id = pdf
    $object = UserInfo::where('id',$id)->get();
    dd($object); --> return empty collection
}

Collection {#395 ▼
  #items: []
}

I get the id as null when I do like this:

    public function pdfview(Request $request)
    {
         $id = UserInfo::find($request->id);
         dd($id);
}

test.blade.php (use this link to download the file)

<a href="{{ route('pdfview',['download'=>'pdf']) }}">Download PDF</a>

Answer 1

That is the problem in this tag you have.

test.blade.php (use this link to download the file) 'pdf']) }}">Download PDF

You are passing the string 'pdf' to the route. thats is the same string it returns back to you. you are suppose to pass the actual ID inside your VIEW file. this way it returns an integer that comes from database.

EX:

 <a href="{{url('/pdfview')}}/{{$post->id}}">Download PDF</a>

In that example $post->id is the ID of the $post it coming from database, and thats what you need to pass to that route and to be able to fetch more data from database based on that ID.

Hopefully it make sense now.