public function getCurrentDiscountAttribute()
 {
     $customer_discount = CustomerDiscount::where('customer_id', $this->membership_id)->join('discounts', 'discounts.id', '=', 'discounts_customers.discount_id')->get();
     if (count($customer_discount) > 0) {
         foreach ($customer_discount as $c) {
             $dt = Carbon::parse($c->expiration);
             if ($c->expiration->diffInDays() > 0) {
                 return $c;
             }
         }
     }
     //return $customer_discount;
 }
 public function deleteCustomerDiscounts($id)
 {
     $cd = CustomerDiscount::where('id', $id)->first();
     if ($cd) {
         $cd->delete();
         return 'success';
     }
 }