Django學習系列之Form驗證

基與上篇文章，在這裏咱們用３種方式來驗證表單.

1.表單字段的驗證器

詳見:https://docs.djangoproject.com/en/1.6/ref/validators/

from django.core.exceptions import ValidationError

def validate_nickname(value):
    if value == "badboy":
        raise ValidationError(u'%s is private,dont input' % value)
        
class Register(forms.Form):
    nickname = forms.CharField(max_length=20,label="暱稱",help_text="請輸入您的別名!",widget=forms.Te
xtInput(attrs={'class':'special','id':'nick'}),error_messages={'required':u'別名不能爲空'},validators
=[validate_nickname])

結果:

2.clean_filedname，驗證字段

class Register(forms.Form):
    ..........................................
    def clean_username(self):
        username = self.cleaned_data.get('username')
        if username == "badboy":
            raise ValidationError(u'%s被使用了，請換個名字!' % username)
        else:
            return username

結果:

3.表單clean方法

class Register(forms.Form):
............................................

    def clean(self):
        cleaned_data = super(Register,self).clean()
        nickname = cleaned_data.get('nickname')
        username = cleaned_data.get('username')
        if nickname == username:
            self._errors['username'] = self.error_class([u"別名與用戶名不能同樣!"])
        else:
            return cleaned_data

結果:

經過以上３種方式，咱們即可以作些表單的驗證了，我以爲這３種方式，已經知足個人需求了.

供參考!

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