ProjectType.objects.values('code').distinct() ProjectType表中code字段所有的值（不包含重复的值）

三层嵌套serializers时。有可能报错“没有这个属性”，可以添加source='issue_set'这种方式。

class MyProjectSerializer(serializers.ModelSerializer):    """    项目表：我的借款    """    issue = IssueSerializer(source='issue_set', many=True)

反向取值

class Member(AbstractUser):

name = models.CharField(max_length=30, null=True, blank=True, verbose_name=u'用户名', unique=True)

password = models.CharField(max_length=100, null=False, verbose_name=u'密码')

class MemberIDCard(models.Model):

member = models.OneToOneField(Member, verbose_name=u"会员", null=True, related_name="id_card")

id_no = models.CharField(max_length=30, verbose_name=u'身份证号')

SerializerMethodField 的一种方式

is_recently = serializers.SerializerMethodField(method_name="method_is_recently")

def method_is_recently(self, obj):

pass

class MemberOfLoginSerializer(serializers.ModelSerializer):

"""

登录后返回的member信息

"""

id_no = serializers.ReadOnlyField(source='id_card.id_no')

class Meta:

model = Member

fields = ('id', 'real_name', 'mobile', 'id_no')

class UserViewSet(mixins.RetrieveModelMixin, viewsets.GenericViewSet):

queryset = User.objects.all()

serializer_class = UserSerializer

def get_object(self):    return self.request.user

@api_view(['GET'])

def current_user(request):

serializer = UserSerializer(request.user)

return Response(serializer.data)

class CurrentUserView(APIView):

def get(self, request):

serializer = UserSerializer(request.user)

return Response(serializer.data).

@api_view(['GET'])

def current_user(request):

user = request.user

return Response({

'username': user.username,

'email': user.email,

...

})

class UserViewSet(viewsets.ModelViewSet):

queryset = User.objects.all()

serializer_class = UserSerializer

def get_object(self):    pk = self.kwargs.get('pk')    if pk == "current":        return self.request.user    return super(UserViewSet, self).get_object()

class UserViewSet(mixins.RetrieveModelMixin, viewsets.GenericViewSet):

queryset = User.objects.all()

serializer_class = UserSerializer

def get_object(self):    return self.request.user