我使用ModelViewSet和TemplateHTMLRenderer来使用表单和进程'post'方法。当我尝试渲染字段错误时,呈现的错误[u'This字段可能不是空白。']。如何让它呈现简单的消息'This ...'?
in html,
<form action="." method="post" id="myform">
<input name="first_name" type="text">
<ul> {{ errors.first_name }}</ul>
</form>
在views.py中,
class UserViewSet(viewsets.ModelViewSet):
queryset = User.objects.all()
serializer_class = UserSerializer
renderer_classes = (renderers.JSONRenderer, renderers.TemplateHTMLRenderer)
template_name = 'account.html'
def list(self, request, *args, **kwargs):
response = super(AccountViewSet, self).list(request, *args, **kwargs)
if request.accepted_renderer.format == 'html':
return Response({'data': response.data}, template_name=self.template_name)
return response
def create(self, request):
serializer = self.serializer_class(data=request.data)
if serializer.is_valid():
User.objects.create_user(**serializer.validated_data)
return Response(serializer.validated_data)
return Response({'errors': serializer.errors})
我在serializer.py中覆盖了rest框架的默认必需错误消息,但它似乎忽略了自定义的必需错误消息,并显示了默认所需的错误消息,例如“此字段可能不是空白..”。
在serializer.py中,
class UserSerializer(serializers.ModelSerializer):
first_name = serializers.RegexField(regex=r'^[a-zA-Z -.\'\_]+$',
required=True,
error_messages={'required': _('Please enter your first name.'),
'invalid': _('Please enter a valid name.')})
这里有什么问题?
答案 0 :(得分:0)
错误未到来,因为DRF最初正在运行字段验证。如果这些验证失败,则会显示默认错误。
根据源代码,默认错误消息存储在default_error_messages
字典中。以下是一些代码片段:
字段:
class Field(object):
default_error_messages = {
'required': _('This field is required.'),
'null': _('This field may not be null.')
}
<强> CharField:强>
class CharField(Field):
default_error_messages = {
'blank': _('This field may not be blank.'),
'max_length': _('Ensure this field has no more than {max_length} characters.'),
'min_length': _('Ensure this field has at least {min_length} characters.')
}
<强> RegexField:强>
class RegexField(CharField):
default_error_messages = {
'invalid': _('This value does not match the required pattern.')
}
因此,您可以通过覆盖序列化程序的default_error_messages
方法覆盖__init__
值并提供自定义错误消息。
class UserSerializer(serializers.ModelSerializer):
first_name = serializers.RegexField(regex=r'^[a-zA-Z -.\'\_]+$',
required=True)
def __init__(self, *args, **kwargs):
super(UserSerializer, self).__init__(*args, **kwargs)
self.fields['first_name'].error_messages['required'] = 'Please enter your first name.'
self.fields['first_name'].error_messages['invalid'] = 'Please enter a valid name.'