有什么方法可以更改表单构造函数内字段的 *min_length* 参数吗？
那是行不通的：
def __init__(self, *args, **kwargs):
super(CreateTeamForm, self).__init__(*args, **kwargs)
self.fields['primary_color'].min_length = 4
尝试设置字段的validators属性中的__init__ method.
from django.core.validators import MinLengthValidator
class MyForm(forms.Form):
primary_color = forms.CharField()
def __init__(self, *args, **kwargs):
super(MyForm, self).__init__(*args, **kwargs)
# get all the validators on the field which are not MinLengthValidator
validators = [v for v in self.fields['primary_color'].validators if not isinstance(v, MinLengthValidator)]
min_length = 10
validators.append(MinLengthValidator(min_length))
self.fields['primary_color'].validators = validators
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