[英]object has no attribute 'get_notification_display'
我正在嘗試顯示人類可讀的choicefield標簽。
def reminder(request, pk=None):
reminder = get_object_or_404(Reminder, pk=pk)
print(reminder.id) # printing correct value
print(reminder.get_notification_display())
return render(request, 'reminder.html', {'reminder': reminder, 'title': 'Reminder'})
但是它拋出了這個錯誤:
AttributeError: 'Reminder' object has no attribute 'get_notification_display'
這是模型:
class Reminder(models.Model):
provider_type = (
('Em', 'Email'),
('Sm', 'SMS'),
('De', 'Desktop'),
('Mo', 'Mobile'),
)
notification = ArrayField(models.CharField(choices=provider_type, max_length=2, default='Em'))
這是get_FOO_display
上的文檔-我缺少什么?
notification = models.CharField(choices=provider_type, max_length=2, default='Em')
刪除arrayfield,因為它不允許您創建和迭代一個
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