Fix custom field seeder to drop old columns

database/seeds/CustomFieldSeeder.php

@@ -1,13 +1,27 @@
 <?php
 use Illuminate\Database\Seeder;
 use App\Models\CustomField;
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
 
 
 class CustomFieldSeeder extends Seeder
 {
   public function run()
   {
+      $columns = DB::getSchemaBuilder()->getColumnListing('assets');
+
+
+          foreach ($columns as $column) {
+              if(strpos($column, '_snipeit_') !== FALSE) {
+
+                  Schema::table('assets', function (Blueprint $table) use ($column) {
+                      $table->dropColumn($column);
+                  });
+              }
+          }
       CustomField::truncate();
+      factory(CustomField::class, 4)->create();
 
   }
 }