Question

假设我在models.py中定义了这个模型：

[ . . . ]
class Robot(models.Model):
    ROBOT_CATEGORIES = (
    [ . . . ]
    )   
    name = models.CharField(max_length=30)
    version = models.ForeignKey('Version')
    category = models.CharField(max_length=10, choices=ROBOT_CATEGORIES)
    comments = models.CharField(max_length=2000, blank=True)

    def __unicode__(self):
        return "ROBOT %s [%s]" % (self.name, self.version)
    class Meta:
        unique_together = ('name', 'version',)

我想为此模型添加管理功能。用户可以输入不同机器人名称的逗号分隔列表，save_model负责将它们保存为不同的对象。为此，我想自己做所有验证。所以这是管理员代码：

class RobotForm(forms.ModelForm):
    name = forms.CharField()
    comments = forms.CharField(widget=forms.Textarea, required=False)

    def clean_name(self):
        # custom validation here
        [ . . . ]
        return data

    def clean(self):
        cleaned_data = super(RobotForm, self).clean()
        # custom validation here
        [ . . . ]
        return cleaned_data

    class Meta:
        model = Robot

class RobotAdmin(admin.ModelAdmin):
    form = RobotForm
    list_display = ('name','version','category','comments')

    def save_model(self, request, obj, form, change):
        # custom save method
        obj.save()

admin.site.register(Robot, RobotAdmin);

除了我在max_length模型中设置的Robot.name限制外，一切正常。在＆＃39;添加＆＃39;表单，如果列表的长度在＆＃39;名称＆＃39;字段超过30个字符，它会闪烁错误。我在clean_name方法中验证每个个人姓名的长度，并希望在表单字段中禁用max_length验证。我该怎么做？

Answer 1

在重写的clean方法中，从clean_data中删除错误，如下所示：

Override data validation on one django form element

覆盖/禁用form.ModelForm中CharField的max_length验证

1 个答案: