“；可读性”；Django中字段选择的值

方法

\uu str\uuu（self）

将返回

BLUEPAY

或

HEARTLAND

或

1STPAYMENT

。但是我想要

\uu str\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

请给我一个解决方案。谢谢

PAYCODE_BLUEPAY = "BLUEPAY"
PAYCODE_HEARTLAND = "HEARTLAND"
PAYCODE_1STPAY = "1STPAYMENT"
PAYCODE_CHOICES =(
    (PAYCODE_1STPAY, '1St Payment'),
    (PAYCODE_BLUEPAY, 'Bluepay Payment'),
    (PAYCODE_HEARTLAND, 'HeartLand Payment'),

)

class Payment(models.Model):
    paymentmethod = models.CharField("Payment Method", max_length=20, choices = PAYCODE_CHOICES, blank=False, null=False)

    def __str__(self):
        return self.paymentmethod 

看

def __str__(self):
    return self.get_paymentmethod_display()