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import warnings
from io import BytesIO
import pandas as pd
from django.db.models import Q
from django.http import HttpResponse
from django.http import JsonResponse
from rest_framework import status
from rest_framework import status as http_status
from rest_framework.decorators import action
from rest_framework.decorators import api_view
from rest_framework.decorators import permission_classes
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.viewsets import ReadOnlyModelViewSet
from service import models
from service import pagination
from service import serializers
from service import utils
from service.permissions import UserPermission
from service.utils import load_data
class AOViewSet(ReadOnlyModelViewSet):
serializer_class = serializers.AOSerializer
queryset = models.AO.objects
permission_classes = [UserPermission]
class PlacementPointViewSet(ReadOnlyModelViewSet):
serializer_class = serializers.PlacementPointSerializer
queryset = models.PlacementPoint.objects
pagination_class = pagination.MyPagination
permission_classes = [UserPermission]
def get_queryset(self):
qs = self.queryset.all()
location_ids = self.request.GET.get('location_ids[]')
prediction_first = self.request.GET.get('prediction_first[]')
prediction_current = self.request.GET.get('prediction_current[]')
categories = self.request.GET.get('categories[]')
status = self.request.GET.get('status[]')
delta = self.request.GET.get('delta[]')
fact = self.request.GET.get('fact[]')
age = self.request.GET.get('age[]')
included = self.request.GET.get('included[]')
excluded = self.request.GET.get('excluded[]')
plan_first = self.request.GET.get('plan_first[]')
plan_current = self.request.GET.get('plan_current[]')
rayons = self.request.GET.get('rayon[]')
aos = self.request.GET.get('ao[]')
if location_ids:
location_ids = list(location_ids.split(','))
qs = qs.filter(pk__in=location_ids)
if prediction_first:
prediction_first = list(prediction_first.split(','))
qs = qs.filter(prediction_first__range=prediction_first)
if prediction_current:
prediction_current = list(prediction_current.split(','))
qs = qs.filter(prediction_current__range=prediction_current)
if categories:
categories = list(categories.split(','))
qs = qs.filter(category__in=categories)
if status:
status = list(status.split(','))
qs = qs.filter(status__in=status)
if delta:
delta = list(delta.split(','))
qs = qs.filter(delta__range=delta)
if fact:
fact = list(fact.split(','))
qs = qs.filter(fact__range=fact)
if age:
age = list(age.split(','))
qs = qs.filter(age__range=age)
if plan_first:
plan_first = list(plan_first.split(','))
qs = qs.filter(plan_first__range=plan_first)
if plan_current:
plan_current = list(plan_current.split(','))
qs = qs.filter(plan_current__range=plan_current)
if rayons:
rayons = list(rayons.split(','))
qs = qs.filter(rayon_id__in=rayons)
if aos:
aos = list(aos.split(','))
qs = qs.filter(okrug_id__in=aos)
if excluded:
excluded = list(excluded.split(','))
qs = qs.filter(~Q(pk__in=excluded))
if included:
inclded = list(included.split(','))
qs2 = models.PlacementPoint.objects.filter(pk__in=inclded).all()
qs = (qs | qs2).distinct()
return qs
@action(detail=False, methods=['get'])
def filters(self, request):
qs = self.get_queryset()
keys = (
'age_day', 'prediction_first', 'prediction_current',
'plan_first', 'plan_current', 'fact', 'delta_first',
'delta_current', 'flat_cnt', 'year_bld', 'levels',
'doors', 'flats_cnt', 'popul_home', 'popul_job',
'other_post_cnt', 'target_post_cnt', 'yndxfood_cnt',
'yndxfood_sum', 'yndxfood_cnt_cst',
)
temp_data = {
key: [
x for x in list(set(qs.values_list(key, flat=True))) if
x is not None
]
for key in keys
}
data = {
key: [
min(temp_data[key]), max(temp_data[key]),
] if temp_data[key] else [0, 100] for key in keys
}
return Response(data, status=status.HTTP_200_OK)
@action(detail=False, methods=['get'])
def search_address(self, request):
address = self.request.GET.get('address')
qs = self.get_queryset()
qs = qs.filter(address__icontains=address)
page = self.paginate_queryset(qs)
if page is not None:
serializer = self.get_serializer(page, many=True)
return self.get_paginated_response(serializer.data)
serializer = self.get_serializer(qs, many=True)
return Response(serializer.data)
@action(detail=False, methods=['put'])
def update_status(self, request):
qs = self.get_queryset()
new_status = self.request.GET.get('status')
if not new_status:
return Response({'message': 'No status'}, 400)
qs.update(**{'status': new_status})
return Response(
{'message': 'status updated'},
status=http_status.HTTP_200_OK,
)
@action(detail=False, methods=['put'])
def update_fact(self, request):
point_id = request.GET.get('postamat_id')
fact = request.GET.get('fact')
if not point_id or not fact or not fact.isdigit():
return Response(status=http_status.HTTP_400_BAD_REQUEST)
qs = models.PlacementPoint.objects.filter(postamat_id=point_id)
if not qs:
return Response(status=http_status.HTTP_404_NOT_FOUND)
qs.update(**{'fact': fact})
return Response({'message': 'fact updated'}, status=http_status.HTTP_200_OK)
@action(detail=False, methods=['put'])
def update_postamat_id(self, request):
postamat_id = request.GET.get('postamat_id')
point_id = request.GET.get('id')
if not point_id or not postamat_id:
return Response(status=http_status.HTTP_400_BAD_REQUEST)
qs = models.PlacementPoint.objects.filter(pk=point_id)
if not qs:
return Response(status=http_status.HTTP_404_NOT_FOUND)
qs.update(**{'postamat_id': postamat_id})
return Response({'message': 'Postamat id updated'}, status=http_status.HTTP_200_OK)
@action(detail=False, methods=['get'])
def to_excel(self, request):
qs = self.get_queryset()
data = pd.DataFrame(list(qs.values()))
data['start_date'] = data['start_date'].dt.tz_localize(None)
data['sample_trn'] = data['sample_trn'].astype(int)
with BytesIO() as b:
with pd.ExcelWriter(b) as writer:
data.to_excel(
writer, sheet_name='Placement Points',
index=False,
)
filename = 'placement_points.xlsx'
res = HttpResponse(
b.getvalue(),
content_type='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
)
res['Content-Disposition'] = f'attachment; filename={filename}'
return res
@action(detail=False, methods=['get'])
def get_10k(self, request):
if models.PlacementPoint.objects.count() > 10000:
qs = \
models.PlacementPoint.objects.order_by(
'-prediction_current',
).all()[
10000
]
return Response({'prediction_current': qs.prediction_current}, 200)
return Response(
{
'prediction_current': models.PlacementPoint.objects.order_by(
'prediction_current',
).first().prediction_current,
},
200,
)
class refresh_placement_points(APIView):
@staticmethod
def post(request):
warnings.filterwarnings('ignore')
file = request.FILES['file']
load_data(file)
return Response(status=http_status.HTTP_200_OK)
class load_ao_and_rayons(APIView):
@staticmethod
def post(request):
warnings.filterwarnings('ignore')
file_ao = request.FILES['file_ao']
file_rayon = request.FILES['file_rayon']
utils.load_ao_and_rayons(file_ao, file_rayon)
return Response(status=http_status.HTTP_200_OK)
@api_view(['POST'])
def upload_rivals(request):
warnings.filterwarnings('ignore')
file_rivals = request.FILES['file_rivals']
utils.load_rivals(file_rivals)
return JsonResponse({'message': 'OK'})
@api_view(['POST'])
def upload_dist(request):
warnings.filterwarnings('ignore')
file_dist = request.FILES['file_dist']
utils.load_dist(file_dist)
return JsonResponse({'message': 'OK'})
@api_view(['GET'])
@permission_classes([IsAuthenticated])
def get_current_user(request):
return JsonResponse(
{'groups': [gr.name for gr in request.user.groups.all()]},
)