public function deleteById($id)
 {
     $path = 'web/sample_organic_certificate/' . $id;
     if (Storage::disk('public')->exists($path)) {
         Storage::disk('public')->deleteDirectory($path);
     }
     $result = SampleOrganicCertificate::find($id)->delete();
     return $result;
 }
 public function add($data)
 {
     $sample = null;
     $data['serial_number'] = 1;
     $year = date('Y');
     $last_entered = Sample::where('created_at', 'LIKE', $year . '%')->orderBy('serial_number', 'desc')->first();
     if ($last_entered) {
         $data['serial_number'] = $last_entered->serial_number + 1;
     }
     $sample = new Sample($data);
     $sample->save();
     if ($sample->token) {
         $sample_organic_certificates = SampleOrganicCertificate::whereSampleToken($sample->token)->get();
         foreach ($sample_organic_certificates as $sample_organic_certificate) {
             $sample_organic_certificate->sample_token = null;
             $sample->sample_organic_certificates()->save($sample_organic_certificate);
         }
         $sample_allergen_certificates = SampleAllergenCertificate::whereSampleToken($sample->token)->get();
         foreach ($sample_allergen_certificates as $sample_allergen_certificate) {
             $sample_allergen_certificate->sample_token = null;
             $sample->sample_allergen_certificates()->save($sample_allergen_certificate);
         }
         $sample_vegan_certificates = SampleVeganCertificate::whereSampleToken($sample->token)->get();
         foreach ($sample_vegan_certificates as $sample_vegan_certificate) {
             $sample_vegan_certificate->sample_token = null;
             $sample->sample_vegan_certificates()->save($sample_vegan_certificate);
         }
         $sample_images = SampleImage::whereSampleToken($sample->token)->get();
         foreach ($sample_images as $sample_image) {
             $sample_image->sample_token = null;
             $sample->sample_images()->save($sample_image);
         }
         $label_images = LabelImage::whereSampleToken($sample->token)->get();
         foreach ($label_images as $label_image) {
             $label_image->sample_token = null;
             $sample->label_images()->save($label_image);
         }
     }
     if ($data['producer_id'] == 'new') {
         unset($data['producer_id']);
         $producer = new Producer();
         $producer->name = $data['producer__name'];
         $producer->customer_id = $sample->customer_id;
         $producer->contact_person = $data['producer__contact_person'];
         $producer->email = $data['producer__email'];
         $producer->phone = $data['producer__phone'];
         $producer->save();
         $sample->producer_id = $producer->id;
         $sample->save();
     }
     if ($data['varietals']) {
         if (is_array($data['varietals'])) {
             foreach ($data['varietals'] as $varietal_data) {
                 if ($varietal_data['name'] && $varietal_data['percentage']) {
                     $sample->sample_varietals()->save(new SampleVarietal($varietal_data));
                 }
             }
         }
     }
     if ($data['prizes']) {
         if (is_array($data['prizes'])) {
             foreach ($data['prizes'] as $prize_data) {
                 if ($prize_data['name']) {
                     $sample_prize = $sample->sample_prizes()->save(new SamplePrize($prize_data));
                     if ($prize_data['token']) {
                         $sample_prize_files = SamplePrizeFile::whereSamplePrizeToken($prize_data['token'])->get();
                         foreach ($sample_prize_files as $sample_prize_file) {
                             $sample_prize_file->sample_prize_token = null;
                             $sample_prize_file->sample_prize_id = $sample_prize->id;
                             $sample_prize_file->save();
                         }
                     }
                     $sample_prize->token = null;
                     $sample_prize->save();
                 }
             }
         }
     }
     $sample->token = null;
     $sample->save();
     return $sample;
 }