提高模型清潔方法中的字段錯誤

Question

如何在模型clean方法中提高ValidationException？

def clean(self): 
    from django.core.exceptions import ValidationError 
    raise ValidationError({'title': 'not ok'}) 

上面（使用形式時）未在錯誤添加到title領域，但對非字段的錯誤。

我知道怎麼做了一個表格（self._errors['title'] = self.error_class([msg])）內，但self._errors不車型內部存在clean方法。

Answer 1

你不這樣做，Model的清潔方法僅用於提高non field errors，但是你可以通過創建一個clean_title方法來引起一個現場錯誤。

def clean(self): 
    """ 
    Hook for doing any extra model-wide validation after clean() has been 
    called on every field by self.clean_fields. Any ValidationError raised 
    by this method will not be associated with a particular field; it will 
    have a special-case association with the field defined by NON_FIELD_ERRORS. 
    """