131 lines
4.3 KiB
Python
131 lines
4.3 KiB
Python
from django.db import transaction
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from rest_framework import generics, status
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from rest_framework.exceptions import NotFound
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from rest_framework.permissions import IsAuthenticated
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from rest_framework.response import Response
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from rest_framework.views import APIView
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from apps.billing.permissions import HasActiveFeature
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from apps.bizapps.models import Appointment, Customer, LedgerEntry, Product, StockMovement
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from .serializers import (
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AdjustStockSerializer,
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AppointmentSerializer,
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CustomerSerializer,
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LedgerEntrySerializer,
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ProductSerializer,
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StockMovementSerializer,
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)
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# همه‌ی این ریزاپ‌ها با جم فعال می‌شوند (یا دوره‌ی آزمایشی) — `feature_key`
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# روی هر ویو مشخص می‌کند HasActiveFeature باید چه چیزی را چک کند.
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# permission_classes اینجا Base است تا زیرکلاس‌ها فراموش نکنند.
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class _UserScopedListCreateView(generics.ListCreateAPIView):
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permission_classes = [IsAuthenticated, HasActiveFeature]
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def get_queryset(self):
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return self.model.objects.filter(user=self.request.user)
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def perform_create(self, serializer):
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serializer.save(user=self.request.user)
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class _UserScopedDetailView(generics.RetrieveUpdateDestroyAPIView):
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permission_classes = [IsAuthenticated, HasActiveFeature]
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def get_queryset(self):
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return self.model.objects.filter(user=self.request.user)
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class CustomerListCreateView(_UserScopedListCreateView):
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model = Customer
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serializer_class = CustomerSerializer
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feature_key = "customers"
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class CustomerDetailView(_UserScopedDetailView):
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model = Customer
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serializer_class = CustomerSerializer
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feature_key = "customers"
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class LedgerEntryListCreateView(_UserScopedListCreateView):
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model = LedgerEntry
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serializer_class = LedgerEntrySerializer
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feature_key = "ledger"
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class LedgerEntryDetailView(_UserScopedDetailView):
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model = LedgerEntry
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serializer_class = LedgerEntrySerializer
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feature_key = "ledger"
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class ProductListCreateView(_UserScopedListCreateView):
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model = Product
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serializer_class = ProductSerializer
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feature_key = "inventory"
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class ProductDetailView(_UserScopedDetailView):
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model = Product
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serializer_class = ProductSerializer
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feature_key = "inventory"
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class ProductAdjustStockView(APIView):
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"""تعدیل اتمیک موجودی (+/-) + یک ردیف تاریخچه — به‌جای این‌که کلاینت
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مستقیم quantity جدید را PATCH کند (که هیچ تاریخچه‌ای نمی‌سازد و اگر دو
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درخواست هم‌زمان بیایند می‌تواند یکی را گم کند)."""
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permission_classes = [IsAuthenticated, HasActiveFeature]
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feature_key = "inventory"
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@transaction.atomic
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def post(self, request, pk):
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try:
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product = Product.objects.select_for_update().get(pk=pk, user=request.user)
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except Product.DoesNotExist:
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raise NotFound("کالا یافت نشد.")
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serializer = AdjustStockSerializer(data=request.data)
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serializer.is_valid(raise_exception=True)
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delta = serializer.validated_data["delta"]
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product.quantity += delta
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product.save(update_fields=["quantity", "updated_at"])
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StockMovement.objects.create(
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product=product,
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delta=delta,
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quantity_after=product.quantity,
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note=serializer.validated_data.get("note", ""),
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)
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return Response(ProductSerializer(product).data, status=status.HTTP_200_OK)
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class ProductMovementsView(generics.ListAPIView):
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"""تاریخچه‌ی تغییرات موجودی یک کالا — جدیدترین اول."""
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serializer_class = StockMovementSerializer
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permission_classes = [IsAuthenticated, HasActiveFeature]
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feature_key = "inventory"
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def get_queryset(self):
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return StockMovement.objects.filter(
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product_id=self.kwargs["pk"], product__user=self.request.user
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)
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class AppointmentListCreateView(_UserScopedListCreateView):
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model = Appointment
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serializer_class = AppointmentSerializer
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feature_key = "booking"
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class AppointmentDetailView(_UserScopedDetailView):
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model = Appointment
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serializer_class = AppointmentSerializer
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feature_key = "booking"
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