views-修改

from .models import Projects
from rest_framework.generics import GenericAPIView
from rest_framework.response import Response
from rest_framework import status
from .serializers import ProjectsSerializer, Projects_ModelSerializer
from utils import pagination
# from utils import mixins
from rest_framework import generics
from rest_framework import filters, mixins


class ProjectDetailView(mixins.RetrieveModelMixin,
                        mixins.UpdateModelMixin,
                        mixins.DestroyModelMixin,
                        GenericAPIView):

    queryset = Projects.objects.all()
    serializer_class = Projects_ModelSerializer

    def get(self, request, *args, **kwargs):

        return self.retrieve(request, *args, **kwargs)

    def put(self, request, *args, **kwargs):
        return self.update(request, *args, **kwargs)

    def delete(self, request, *args, **kwargs):
        return self.destroy(request, *args, **kwargs)


"""
继承DRF的APIView之后，可实现认证，授权，限流等功能
继承DRF的APIView之后，每个实例方法中的request为Request对象
Request类对象拓展了很多Django中的HttpRequest的功能
Request类兼容HttpRequest类的功能
查询字符串参数：request.get或者request.query_params(推荐)
获取json参数：request.body或者request.data
获取www-from：request.POST或者request.data
获取multipart/form-data：request.body或者request.data

"""

"""
一：过滤
    a. 在全局制定过滤引擎，setting(全局)； search_fields：指定模型类过滤的字段，可加前缀（=，^，$）, 【search_fields】
    b. 特定的视图类制定：【filter_backends】
    c. filter_queryset: 对查询集进行过滤

二：排序
    a. 在setting(全局)指定排序引擎， search_fields：指定模型类过滤的字段，
    b. 特定的视图类制定：【OrderingFilter】
三：分页
    a. get_paginated_response:需要传序列化后的字典或嵌套字典的列表
                              返回response对象，返回数据中添加next，count，previous，results（数据）
    b. pagination_class: 指定分页引擎
"""


# class ProjectView(mixins.ListModelMixin, mixins.CreateModelMixin, GenericAPIView):
# class ProjectView(generics.ListAPIView, generics.CreateAPIView, GenericAPIView):
class ProjectView(generics.ListCreateAPIView):

    queryset = Projects.objects.all()
    serializer_class = Projects_ModelSerializer

    search_fields = ['name', 'leader']
    ordering_fields = ['name', 'id', 'leader']

    filter_backends = [filters.SearchFilter, filters.OrderingFilter]

    # 指定分页引擎
    # pagination_class = pagination

    # def get(self, request, *args, **kwargs):
    #     return self.list(request, *args, **kwargs)
    #
    # def post(self, request, *args, **kwargs):
    #     return self.create(request, *args, **kwargs)