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06| Django REST framework+Vue 生鲜超市 ——个人中心功能开发

drf的api文档自动生成

 (1) url

#drf文档,title自定义
    path('docs',include_docs_urls(title='仙剑奇侠传')),

  

访问:http://127.0.0.1:8000/docs  就可以自动生成 

 

 

(2)drf文档的优点:

  • 自动生成
  • 文档里可以做交互和测试
  • 可以生成js,shell和python代码段

 

(3)代码中注释的格式:

ViewSet的格式,更多请看官方文档

 

class GoodsListViewSet(mixins.ListModelMixin, mixins.RetrieveModelMixin,viewsets.GenericViewSet):
    '''
    list:
        商品列表,分页,搜索,过滤,排序
    retrieve:
        获取商品详情
    '''

  

(4)Description

添加字段的描述有三种方式:

  • model的字段中加 help_text = '字段说明'
  • serializer的字段加 help_text = '字段说明'
  • filter中也可以加 help_text = '字段说明'

 

 

动态设置serializer和permission获取用户信息

 

因为在用户注册的时候和我们在获取用户信息使用的是不同的serializer,所以我们要在次加以动态的区分

获取用户个人信息接口 

(1)用户详情的序列化

 users/serializers.py

 

class UserDetailSerializer(serializers.ModelSerializer):
    """
    用户详情
    """
    class Meta:
        model = User
        fields = ("name", "gender", "birthday", "email","mobile")

  

(2)users/views.py 

from .serializers import UserRegSerializer


# 用户
from rest_framework import mixins
from rest_framework import authentication
from rest_framework_jwt.authentication import JSONWebTokenAuthentication
from rest_framework_jwt.serializers import jwt_encode_handler, jwt_payload_handler
from rest_framework import permissions
from .serializers import UserDetailSerializer


class UserViewset(CreateModelMixin,mixins.RetrieveModelMixin,viewsets.GenericViewSet):
    '''
    用户
    '''
    serializer_class = UserRegSerializer
    queryset = User.objects.all()
    authentication_classes = (JSONWebTokenAuthentication, authentication.SessionAuthentication)

    # 在创建用户的时候返回用户名和token
    def create(self, request, *args, **kwargs):
        serializer = self.get_serializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        user = self.perform_create(serializer)
        re_dict = serializer.data
        payload = jwt_payload_handler(user)
        re_dict["token"] = jwt_encode_handler(payload)
        re_dict["name"] = user.name if user.name else user.username

        headers = self.get_success_headers(serializer.data)

        return Response(re_dict, status=status.HTTP_201_CREATED, headers=headers)

    #这里需要动态权限配置
    #1.用户注册的时候不应该有权限限制
    #2.当想获取用户详情信息的时候,必须登录才行
    def get_permissions(self):
        if self.action == "retrieve":
            return [permissions.IsAuthenticated()]
        elif self.action == "create":
            return []

        return []

    #这里需要动态选择用哪个序列化方式
    #1.UserRegSerializer(用户注册),只返回username和mobile,会员中心页面需要显示更多字段,所以要创建一个UserDetailSerializer
    #2.问题又来了,如果注册的使用userdetailSerializer,又会导致验证失败,所以需要动态的使用serializer
    def get_serializer_class(self):
        if self.action == "retrieve":
            return UserDetailSerializer
        elif self.action == "create":
            return UserRegSerializer

        return UserDetailSerializer

    #虽然继承了Retrieve可以获取用户详情,但是并不知道用户的id,所有要重写get_object方法
    #重写get_object方法,就知道是哪个用户了
    def get_object(self):
        return self.request.user

    def perform_create(self, serializer):
        return serializer.save()
View Code

 

 

主要添加的内容:

  • 继承mixins.RetrieveModelMixin   -->>获取用户信息
  • 重写get_object                              -->>获取登录的用
  • get_permissions  中通过self.action   ->>动态权限分配
  • get_serializer_class                     -->>动态序列化分配

 

 现在就可以从数据库获取用户的信息了

 

用户个人信息修改

 只需要多添加一个继承mixins.UpdateModelMixin就可以了

 

class UserViewset(CreateModelMixin,mixins.RetrieveModelMixin,mixins.UpdateModelMixin,viewsets.GenericViewSet):

  

用户收藏

(1)用户收藏商品详情

user_operation/serializer.py中添加

class UserFavDetailSerializer(serializers.ModelSerializer):
    '''
    用户收藏详情
    '''

    #通过商品id获取收藏的商品,需要嵌套商品的序列化
    goods = GoodsSerializer()
    class Meta:
        model = UserFav
        fields = ("goods", "id")
View Code

 

 

(2) user_operation/view.py

class UserFavViewset(viewsets.GenericViewSet, mixins.ListModelMixin, mixins.CreateModelMixin, mixins.DestroyModelMixin):
    '''
    用户收藏
    '''
    #permission是用来做权限判断的
    # IsAuthenticated:必须登录用户;IsOwnerOrReadOnly:必须是当前登录的用户
    permission_classes = (IsAuthenticated,IsOwnerOrReadOnly)
    #auth使用来做用户认证的
    authentication_classes = (JSONWebTokenAuthentication,SessionAuthentication)
    #搜索的字段
    lookup_field = 'goods_id'

    def get_queryset(self):
        #只能查看当前登录用户的收藏,不会获取所有用户的收藏
        return UserFav.objects.filter(user=self.request.user)

    def get_serializer_class(self):
        if self.action == "list":
            return UserFavDetailSerializer
        elif self.action == "create":
            return UserFavSerializer

        return UserFavSerializer
View Code

 

 

  在会员中心可以看到已收藏的商品以及详细信息,点删除,可以删除对应的商品

 

用户留言功能

 (1)user_operation/serializers.py

 

from .models import UserLeavingMessage       
class LeavingMessageSerializer(serializers.ModelSerializer):
    '''
    用户留言
    '''
    # 获取当前登录的用户
    user = serializers.HiddenField(
        default=serializers.CurrentUserDefault()
    )
    #read_only:只返回,post时候可以不用提交,format:格式化输出
    add_time = serializers.DateTimeField(read_only=True, format='%Y-%m-%d %H:%M')
    class Meta:
        model = UserLeavingMessage
        fields = ("user", "message_type", "subject", "message", "file", "id" ,"add_time")
View Code

 

 

 (2)user_operation/views.py

 

from .serializers import LeavingMessageSerializer
from .models import UserLeavingMessage

class LeavingMessageViewset(mixins.ListModelMixin, mixins.DestroyModelMixin, mixins.CreateModelMixin,
                            viewsets.GenericViewSet):
    """
    list:
        获取用户留言
    create:
        添加留言
    delete:
        删除留言功能
    """

    permission_classes = (IsAuthenticated, IsOwnerOrReadOnly)
    authentication_classes = (JSONWebTokenAuthentication, SessionAuthentication)
    serializer_class = LeavingMessageSerializer

    # 只能看到自己的留言
    def get_queryset(self):
        return UserLeavingMessage.objects.filter(user=self.request.user)
View Code

 

 

(3)配置url

# 配置用户留言的url
router.register(r'messages', LeavingMessageViewset, base_name="messages")

 可以获取、删除留言等功能

用户收获地址

  (1)user_operation/serializers.py

from .models import UserAddress
class AddressSerializer(serializers.ModelSerializer):
    user = serializers.HiddenField(
        default=serializers.CurrentUserDefault()
    )
    add_time = serializers.DateTimeField(read_only=True, format='%Y-%m-%d %H:%M')

    class Meta:
        model = UserAddress
        fields = ("id", "user", "province", "city", "district", "address", "signer_name", "add_time", "signer_mobile")
View Code

 

 

(2)user_operation/views.py

如果要实现增删改查功能,只要继承ModelViewSet就可以了

from .serializers import AddressSerializer,UserAddress
class AddressViewset(viewsets.ModelViewSet):
    """
    收货地址管理
    list:
        获取收货地址
    create:
        添加收货地址
    update:
        更新收货地址
    delete:
        删除收货地址
    """
    permission_classes = (IsAuthenticated, IsOwnerOrReadOnly)
    authentication_classes = (JSONWebTokenAuthentication, SessionAuthentication)
    serializer_class = AddressSerializer

    def get_queryset(self):
        return UserAddress.objects.filter(user=self.request.user)
View Code

 

 

(3)配置url

# 配置收货地址
router.register(r'address',AddressViewset , base_name="address")

 

 

 

posted @ 2018-10-25 19:32  Crazymagic  阅读(245)  评论(0编辑  收藏  举报