Django在验证ModelForm时不尊重TextField model field的max_length属性.
因此,我定义了一个继承自Models.TextField的LimitedTextField,并添加了类似于Models.CharField的验证位:
from django.core import validators
class LimitedTextField(models.TextField):
def __init__(self, *args, **kwargs):
super(LimitedTextField, self).__init__(*args, **kwargs)
self.max_length = kwargs.get('max_length')
if self.max_length:
self.validators.append(validators.MaxLengthValidator(self.max_length))
def formfield(self, **kwargs):
defaults = {'max_length': self.max_length}
defaults.update(kwargs)
return super(LimitedTextField, self).formfield(**defaults)
但这仍然不会影响ModelForm验证.
我遗漏了什么?