/**
  * Run the migrations.
  *
  * @return void
  */
 public function up()
 {
     Schema::table('users_credits', function (Blueprint $table) {
         $table->integer('staff_id')->unsigned()->after('expires');
     });
     // Update any existing credits
     $all = CreditModel::all();
     if ($all->count() > 0) {
         foreach ($all as $credit) {
             $credit->update(['staff_id' => 1]);
         }
     }
 }