django 实现 消息通知- 不使用第三方包

django 实现 消息通知- 不使用第三方包

定义模型

class Message(models.Model):
    user = models.ForeignKey(UserModel, on_delete=models.DO_NOTHING, verbose_name="用户关联信息")
    name = models.CharField("标题", max_length=100)
    title = models.TextField("内容", max_length=1000, null=True, blank=True)
    to_users = models.ManyToManyField(User, blank=True, verbose_name='接受人', help_text="接受人")
    safe = models.BooleanField("状态(已读/未读)", default=False)
    Creation_time = models.DateTimeField("记录创建时间", auto_now_add=True)
    class Meta:
        db_table = "Message"
        verbose_name = "消息"
        verbose_name_plural = verbose_name

注册后台

@admin.register(Message)
class MessageAdmin(admin.ModelAdmin):
    pass

定义序列化器

class MessageListCreateSerializers(serializers.ModelSerializer):
    class Meta:
        model = Message
        fields = '__all__'
class MessageUpdateSerializers(serializers.ModelSerializer):
    safe = serializers.BooleanField(help_text="状态(已读/未读)")
    class Meta:
        model = Message
        fields = ("safe",)

书写视图集

class MessageModelsViewSet(ModelViewSet):
    """消息信息管理"""
    queryset = Message.objects.all()
    serializer_class = MessageListCreateSerializers
    pagination_class = BasePagination
    filter_backends = [DjangoFilterBackend]
    filter_fields = ('name', 'safe')
    def get_serializer_class(self):
        # 根据请求类型动态变更serializer
        if self.action == 'update':
            return MessageUpdateSerializers
        return MessageListCreateSerializers

注册路由

routers.register("Message", MessageModelsViewSet, basename="消息信息管理")