[英]Django - Model choices from another model's choices that are already selected
[英]Django Model Use Text Choices From Another Model
在我的 Django 模型中,我想使用另一个模型中的文本选择,但我不想将它用作外键,因为我想要在任何 Day 对象存在之前的整个工作日列表。
如果我将它用作外键,则需要先创建 Day 对象。
任何人都可以帮助解决这个问题吗?
class Day(models.Model):
class Weekdays(models.TextChoices):
MONDAY = "Monday"
TUESDAY = "Tuesday"
WEDNESDAY = "Wednesday"
THURSDAY = "Thursday"
FRIDAY = "Friday"
SATURDAY = "Saturday"
SUNDAY = "Sunday"
store = models.ForeignKey(Store, on_delete=models.DO_NOTHING)
weekday = models.CharField(max_length=9, choices=Weekdays.choices)
class School(models.Model):
weekday = ???
您可以重用Day
模型中的Weekdays
,包括:
class Day(models.Model):
# …
pass
class School(models.Model):
weekday = models.CharField(max_length=9, choices=Day.Weekdays.choices)
由于这些选择并不真正“属于”两个模型中的任何一个,因此在两个类之外定义它们可能更有意义,因此:
class Weekdays(models.TextChoices):
MONDAY = "Monday"
TUESDAY = "Tuesday"
WEDNESDAY = "Wednesday"
THURSDAY = "Thursday"
FRIDAY = "Friday"
SATURDAY = "Saturday"
SUNDAY = "Sunday"
class Day(models.Model):
store = models.ForeignKey(Store, on_delete=models.DO_NOTHING)
weekday = models.CharField(max_length=9, choices=Weekdays.choices)
class School(models.Model):
weekday = models.CharField(max_length=9, choices=Weekdays.choices)
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