Django的选择。如何设置默认选项?

时间:2012-10-04 10:54:47

标签: django

如何设置默认STATUSES选项?

class Order(models.Model):
    STATUSES = (
        (u'E', u'Expected'),
        (u'S', u'Sent'),
        (u'F', u'Finished'),
    )

    status = models.CharField(max_length=2, null=True, choices=STATUSES)

2 个答案:

答案 0 :(得分:43)

status = models.CharField(max_length=2, null=True, choices=STATUSES, default='E')

或者,如果STATUSES发生变化,则避免设置无效的默认值:

status = models.CharField(max_length=2, null=True, choices=STATUSES, default=STATUSES[0][0])

答案 1 :(得分:5)

这是一个古老的问题,只想添加现在可用的Djanto 3.x +语法:

class StatusChoice(models.TextChoices):
    EXPECTED = u'E', 'Expected'
    SENT = u'S', 'Sent'
    FINISHED = u'F', 'Finished'

然后,您可以使用以下语法设置默认值:

status = models.CharField(
    max_length=2,
    null=True,
    choices=StatusChoice.choices,
    default=StatusChoice.EXPECTED
)