XZNSH_Api/app/views.py

import logging

from django.db.models import Count

# Create your views here.
from rest_framework import viewsets
from rest_framework.response import Response
from app.models import XZNSH
from app.serializers import SerialMyModel, SerialFilter
from app.pagination import MyPageNumberPagination
from user.models import UserProfile
from django.contrib.auth import authenticate, login, logout
from .utils import generate_token, decode_token_exp_time

logger = logging.getLogger('mylogger')


class XZNSHModelViewSet(viewsets.ModelViewSet):
    # 查询类
    queryset = XZNSH.objects.all().order_by("-uid")  # 按照uid倒序
    # 序列化类
    serializer_class = SerialMyModel
    # 分页类
    pagination_class = MyPageNumberPagination
    # 条件筛选
    filterset_class = SerialFilter

    def get_events(self, request, *args, **kwargs):
        res = self.queryset.values("event_type").filter(event_type__isnull=False).annotate(count=Count("event_type")).order_by('-count')
        response = self.filter_filed("event_type", res)
        return Response(response)

    def get_scenes(self, request, *args, **kwargs):
        res = self.queryset.values("scene").filter(scene__isnull=False).annotate(count=Count("scene")).order_by('-count')
        response = self.filter_filed("scene", res)
        return Response(response)

    def get_violation_reason(self, request, *args, **kwargs):
        res = self.queryset.values("violation_reason").filter(violation_reason__isnull=False).annotate(count=Count("violation_reason")).order_by('-count')
        response = self.filter_filed("violation_reason", res)
        return Response(response)

    @staticmethod
    def filter_filed(filed_name, query_set):
        result = list(query_set)
        data = dict()
        for index, item in enumerate(result, 1):
            data[index] = item.get(filed_name)
        response = {
            'success': True,
            'msg': '查询成功',
            'data': data
        }
        return response