public function crawler(Request $request)
 {
     $pdfs = Pdf::all();
     // $pricelists = Pdf::all();
     $result = "<div class='crawler_list'><div class='row'>";
     $result = $result . "<h4>PDF</h4><ul class='list-crawler'>";
     foreach ($pdfs as $pdf) {
         $result = $result . "<li>";
         $retailers = \DB::table('retailers')->where('id', '=', $pdf->retailer_id)->get();
         foreach ($retailers as $retailer) {
             $result = $result . $retailer->retailer_name;
         }
         $result = $result . $pdf->crawler->id;
         $result = $result . "</li>";
     }
     $result = $result . "</ul></div><div class='row'>";
     $websites = Website::all();
     // $pricelists = Pdf::all();
     $result = $result . "<button type='button' class='btn btn-xs' id='progress'>Progress</button>" . "<h4>WEBSITE</h4>";
     foreach ($websites as $website) {
         // $retailers = \DB::table('retailers')->where('id', '=', $pdf->pricelist->retailer_id )->get();
         // foreach ($retailers as $retailer) {
         //   $result = $result. $retailer->retailer_name;
         // }
         $result = $result . $website->crawler->id;
     }
     $result = $result . "</div></div>";
     return $result;
     // foreach ($pricelists as $pricelist) {
     //
     // }
 }