django - 尽管为 ModelForm 字段设置了 (null=True, Blank=True)，但在将该字段留空时出现验证错误

Question

我有以下 models.py 代码:

class try(models.Model)
    date = models.CharField(max_length=10, blank=True, null=True) # statement no. 1
    #also tried this instead of statement no.1 :
    #date = models.DateField(blank=True, null=True)
    #other statements

对应的ModelForm代码是:

class MyForm(ModelForm):
    filing_date = DateField(input_formats=['%d-%m-%Y'], widget=DateInput(format=('%d-%m-%Y'), attrs={'class':'input-block-level datePickBootstrap', 'placeholder':'Filing date'}))
    class Meta:
        model = try

如果“日期”字段留空，我会收到错误“此字段为必填字段”。考虑到我使用了“blank = True”，我无法找出错误的原因。我还尝试搜索“DateField”是否有任何问题。我怎么解决这个问题？我是新手。我已经发布了相关代码。

Answer 1

将该字段设置为required=False

class MyForm(ModelForm):
    filing_date = DateField(input_formats=['%d-%m-%Y'],
                            widget=DateInput(format=('%d-%m-%Y'), attrs={'class':'input-block-level datePickBootstrap', 'placeholder':'Filing date'}),
                            required=False)
    class Meta:
        model = try