adding
This commit is contained in:
+430
-71
@@ -1,130 +1,489 @@
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from django.db import transaction
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import uuid
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from django.db.models import Sum
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from django.http import HttpResponse
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from django.utils.dateparse import parse_date
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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.exceptions import NotFound, ValidationError
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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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from apps.bizapps.models import (
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Account,
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Customer,
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Invoice,
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LedgerBook,
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LedgerEntry,
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LedgerInstallment,
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Product,
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StockMovement,
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Transaction,
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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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from .accounting import (
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ChartOfAccountsService,
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CustomerStatementService,
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LedgerBookService,
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SubsidiaryLedgerService,
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)
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from .serializers import (
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AccountSerializer,
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AdjustStockSerializer,
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CreateInvoiceSerializer,
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CustomerSerializer,
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InvoiceSerializer,
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LedgerBookSerializer,
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LedgerEntrySerializer,
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LedgerInstallmentSerializer,
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OpenLedgerBookSerializer,
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ProductSerializer,
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StockMovementSerializer,
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TransactionSerializer,
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UpdateInvoiceStatusSerializer,
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)
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from .services import InsufficientStockError, InvoiceService, LedgerService
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class _UserScopedListCreateView(generics.ListCreateAPIView):
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permission_classes = [IsAuthenticated, HasActiveFeature]
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class _OwnedMixin:
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"""همه‌ی منابع این اپ فقط متعلق به کاربرِ درخواست‌دهنده‌اند."""
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permission_classes = [IsAuthenticated]
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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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# ---------------- مشتریان ----------------
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class CustomerListCreateView(_OwnedMixin, generics.ListCreateAPIView):
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model = Customer
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serializer_class = CustomerSerializer
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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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class CustomerDetailView(_OwnedMixin, generics.RetrieveUpdateDestroyAPIView):
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model = Customer
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serializer_class = CustomerSerializer
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class CustomerStatementView(APIView):
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"""صورت‌حسابِ کاملِ یک مشتری — فاکتورها + بدهی‌های باز + اقساط، یک‌جا.
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همان اتصالِ «مشتری ↔ فاکتور ↔ حسابداری» به‌شکلِ یک پاسخِ واحد."""
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permission_classes = [IsAuthenticated]
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def get(self, request, pk):
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customer = Customer.objects.filter(user=request.user, pk=pk).first()
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if customer is None:
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raise NotFound("مشتری یافت نشد.")
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return Response(CustomerStatementService.build(request.user, customer))
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# ---------------- دفتر درآمد و هزینه ----------------
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class LedgerEntryListCreateView(_OwnedMixin, generics.ListCreateAPIView):
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model = LedgerEntry
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serializer_class = LedgerEntrySerializer
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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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qs = super().get_queryset().prefetch_related("installments").select_related("account")
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# پیش‌فرض فقط فایلِ جاری؟ نه — book=<id> صریح، وگرنه همه؛ تا
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# گزارش‌های چنددوره‌ای هم ممکن بماند.
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book_id = self.request.query_params.get("book")
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if book_id:
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qs = qs.filter(book_id=book_id)
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start = parse_date(self.request.query_params.get("start", "") or "")
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end = parse_date(self.request.query_params.get("end", "") or "")
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if start:
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qs = qs.filter(entry_date__gte=start)
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if end:
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qs = qs.filter(entry_date__lte=end)
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return qs
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def perform_create(self, serializer):
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book = LedgerBookService.ensure_active_book(self.request.user)
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entry = serializer.save(user=self.request.user, book=book)
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LedgerService.sync_entry_account(self.request.user, entry)
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if entry.counterparty_phone:
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LedgerService.recompute_customer_balance(self.request.user, entry.counterparty_phone)
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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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class LedgerEntryDetailView(_OwnedMixin, generics.RetrieveUpdateDestroyAPIView):
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model = LedgerEntry
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serializer_class = LedgerEntrySerializer
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feature_key = "ledger"
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def get_queryset(self):
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return super().get_queryset().prefetch_related("installments").select_related("account")
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def perform_update(self, serializer):
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entry = serializer.save()
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LedgerService.sync_entry_account(self.request.user, entry)
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if entry.counterparty_phone:
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LedgerService.recompute_customer_balance(self.request.user, entry.counterparty_phone)
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def perform_destroy(self, instance):
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phone = instance.counterparty_phone
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instance.delete()
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if phone:
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LedgerService.recompute_customer_balance(self.request.user, phone)
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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 LedgerInstallmentListCreateView(generics.ListCreateAPIView):
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serializer_class = LedgerInstallmentSerializer
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permission_classes = [IsAuthenticated]
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def _entry(self) -> LedgerEntry:
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entry = LedgerEntry.objects.filter(
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user=self.request.user, pk=self.kwargs["entry_id"]
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).prefetch_related("installments").first()
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if entry is None:
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raise NotFound("ردیف دفتر یافت نشد.")
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return entry
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def get_serializer_context(self):
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context = super().get_serializer_context()
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context["ledger_entry"] = self._entry()
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return context
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def get_queryset(self):
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return self._entry().installments.all()
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def perform_create(self, serializer):
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entry = self._entry()
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installment = serializer.save(id=str(uuid.uuid4()), ledger_entry=entry)
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# هر قسط، هم مانده‌ی مشتری را به‌روز می‌کند هم یک سندِ حسابداری
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# دوطرفه می‌سازد — همان اتصالِ دفتر به درختِ حساب‌ها.
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LedgerService.post_installment_transaction(self.request.user, installment)
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if entry.counterparty_phone:
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LedgerService.recompute_customer_balance(self.request.user, entry.counterparty_phone)
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class ProductListCreateView(_UserScopedListCreateView):
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class LedgerInstallmentDetailView(generics.DestroyAPIView):
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serializer_class = LedgerInstallmentSerializer
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permission_classes = [IsAuthenticated]
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def get_queryset(self):
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return LedgerInstallment.objects.filter(ledger_entry__user=self.request.user)
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def perform_destroy(self, instance):
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phone = instance.ledger_entry.counterparty_phone
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instance.delete()
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if phone:
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LedgerService.recompute_customer_balance(self.request.user, phone)
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class LedgerExportView(APIView):
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"""خروجیِ دفتر — پیش‌فرض اکسلِ چندبرگی (?type=csv برای نسخه‌ی ساده).
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عمداً `type` و نه `format`: پارامترِ `format` را خودِ DRF برای مذاکره‌ی
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محتوا رزرو کرده و `?format=csv` را به‌عنوان درخواستِ رندررِ ثبت‌نشده‌ی
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csv تفسیر و ۴۰۴ می‌دهد."""
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permission_classes = [IsAuthenticated]
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def get(self, request):
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start = parse_date(request.query_params.get("start", "") or "")
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end = parse_date(request.query_params.get("end", "") or "")
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if request.query_params.get("type") == "csv":
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content = LedgerService.export_csv(request.user, start, end)
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response = HttpResponse(content, content_type="text/csv; charset=utf-8-sig")
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response["Content-Disposition"] = 'attachment; filename="ledger.csv"'
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return response
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content = LedgerService.export_xlsx(request.user, start, end)
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response = HttpResponse(
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content,
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content_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
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)
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response["Content-Disposition"] = 'attachment; filename="shopship-report.xlsx"'
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return response
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# ---------------- درخت حساب‌ها ----------------
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class AccountListView(generics.ListCreateAPIView):
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serializer_class = AccountSerializer
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permission_classes = [IsAuthenticated]
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def get_queryset(self):
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ChartOfAccountsService.ensure_chart(self.request.user)
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qs = Account.objects.filter(user=self.request.user).select_related("parent")
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level = self.request.query_params.get("level")
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if level:
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qs = qs.filter(level=level)
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return qs
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def perform_create(self, serializer):
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serializer.save(id=str(uuid.uuid4()), user=self.request.user, is_system=False)
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class AccountDetailView(generics.RetrieveUpdateDestroyAPIView):
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serializer_class = AccountSerializer
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permission_classes = [IsAuthenticated]
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def get_queryset(self):
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return Account.objects.filter(user=self.request.user)
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def perform_destroy(self, instance):
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# حساب‌های سیستمی پایه‌ی سندهای خودکارند؛ حذفشان گزارش‌ها را می‌شکند.
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if instance.is_system:
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raise ValidationError({"detail": "حساب‌های سیستمی قابل حذف نیستند."})
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instance.delete()
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class TrialBalanceView(APIView):
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"""ترازِ حساب‌ها — جمعِ بدهکار/بستانکار و مانده‌ی هر حسابِ معین."""
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permission_classes = [IsAuthenticated]
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def get(self, request):
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start = parse_date(request.query_params.get("start", "") or "")
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end = parse_date(request.query_params.get("end", "") or "")
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return Response(ChartOfAccountsService.trial_balance(request.user, start, end))
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class TransactionListView(generics.ListAPIView):
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serializer_class = TransactionSerializer
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permission_classes = [IsAuthenticated]
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def get_queryset(self):
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return Transaction.objects.filter(user=self.request.user).select_related(
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"debit_account_ref", "credit_account_ref"
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)
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# ---------------- انبار ----------------
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class ProductListCreateView(_OwnedMixin, generics.ListCreateAPIView):
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model = Product
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serializer_class = ProductSerializer
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feature_key = "inventory"
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def perform_create(self, serializer):
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product = serializer.save(user=self.request.user)
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product.recompute_purchase_value()
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product.save(update_fields=["total_purchase_value", "updated_at"])
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class ProductDetailView(_UserScopedDetailView):
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class ProductDetailView(_OwnedMixin, generics.RetrieveUpdateDestroyAPIView):
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model = Product
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serializer_class = ProductSerializer
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feature_key = "inventory"
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def perform_update(self, serializer):
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product = serializer.save()
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product.recompute_purchase_value()
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product.save(update_fields=["total_purchase_value", "updated_at"])
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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]
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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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product = Product.objects.filter(user=request.user, pk=pk).first()
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if product is None:
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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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product.quantity += serializer.validated_data["delta"]
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product.recompute_purchase_value()
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product.save(update_fields=["quantity", "total_purchase_value", "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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delta=serializer.validated_data["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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return Response(ProductSerializer(product).data)
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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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permission_classes = [IsAuthenticated]
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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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product__user=self.request.user, product_id=self.kwargs["pk"]
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)
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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 InventorySummaryView(APIView):
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"""خلاصه‌ی انبار — ارزشِ کل، تعداد اقلام، و کالاهای روی آستانه‌ی کمبود."""
|
||||
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permission_classes = [IsAuthenticated]
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||||
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def get(self, request):
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products = Product.objects.filter(user=request.user)
|
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low = [p for p in products if p.is_low_stock]
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return Response(
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{
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"total_products": products.count(),
|
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"total_value": products.aggregate(v=Sum("total_purchase_value"))["v"] or 0,
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||||
"low_stock_count": len(low),
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"low_stock": ProductSerializer(low, many=True).data,
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||||
}
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||||
)
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||||
|
||||
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||||
class AppointmentDetailView(_UserScopedDetailView):
|
||||
model = Appointment
|
||||
serializer_class = AppointmentSerializer
|
||||
feature_key = "booking"
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||||
# ---------------- فاکتور ----------------
|
||||
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||||
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||||
class InvoiceListCreateView(_OwnedMixin, generics.ListCreateAPIView):
|
||||
model = Invoice
|
||||
serializer_class = InvoiceSerializer
|
||||
|
||||
def get_queryset(self):
|
||||
return super().get_queryset().prefetch_related("items")
|
||||
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||||
def create(self, request, *args, **kwargs):
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serializer = CreateInvoiceSerializer(data=request.data)
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serializer.is_valid(raise_exception=True)
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||||
data = dict(serializer.validated_data)
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||||
send_sms = data.pop("send_sms", False)
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||||
try:
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||||
invoice = InvoiceService.create_invoice(request.user, data, send_sms=send_sms)
|
||||
except InsufficientStockError as exc:
|
||||
raise ValidationError({"detail": str(exc)})
|
||||
return Response(InvoiceSerializer(invoice).data, status=status.HTTP_201_CREATED)
|
||||
|
||||
|
||||
class InvoiceDetailView(_OwnedMixin, generics.RetrieveAPIView):
|
||||
model = Invoice
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||||
serializer_class = InvoiceSerializer
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||||
|
||||
def get_queryset(self):
|
||||
return super().get_queryset().prefetch_related("items")
|
||||
|
||||
|
||||
class InvoiceStatusView(APIView):
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def post(self, request, pk):
|
||||
serializer = UpdateInvoiceStatusSerializer(data=request.data)
|
||||
serializer.is_valid(raise_exception=True)
|
||||
try:
|
||||
invoice = InvoiceService.update_status(request.user, pk, **serializer.validated_data)
|
||||
except Invoice.DoesNotExist:
|
||||
raise NotFound("فاکتور یافت نشد.")
|
||||
return Response(InvoiceSerializer(invoice).data)
|
||||
|
||||
|
||||
class InvoiceCancelView(APIView):
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def post(self, request, pk):
|
||||
try:
|
||||
invoice = InvoiceService.cancel_invoice(request.user, pk)
|
||||
except Invoice.DoesNotExist:
|
||||
raise NotFound("فاکتور یافت نشد.")
|
||||
except ValueError as exc:
|
||||
raise ValidationError({"detail": str(exc)})
|
||||
return Response(InvoiceSerializer(invoice).data)
|
||||
|
||||
|
||||
class BusinessDashboardView(APIView):
|
||||
"""داشبوردِ یکپارچه — همان «اتصالِ بخش‌ها» به‌شکلِ یک پاسخ: فروش، بدهی،
|
||||
انبار و فاکتورها کنار هم، به‌جای چهار درخواستِ جدا از چهار صفحه."""
|
||||
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def get(self, request):
|
||||
user = request.user
|
||||
entries = LedgerEntry.objects.filter(user=user).prefetch_related("installments")
|
||||
products = Product.objects.filter(user=user)
|
||||
invoices = Invoice.objects.filter(user=user)
|
||||
|
||||
income = sum(e.amount for e in entries if e.entry_type == LedgerEntry.EntryType.INCOME)
|
||||
expense = sum(e.amount for e in entries if e.entry_type == LedgerEntry.EntryType.EXPENSE)
|
||||
receivable = sum(
|
||||
e.remaining_amount for e in entries if e.category == LedgerEntry.Category.SALE_CREDIT
|
||||
)
|
||||
payable = sum(
|
||||
e.remaining_amount for e in entries if e.category == LedgerEntry.Category.PURCHASE_CREDIT
|
||||
)
|
||||
|
||||
return Response(
|
||||
{
|
||||
"total_income": income,
|
||||
"total_expense": expense,
|
||||
"net_profit": income - expense,
|
||||
"open_receivable": receivable,
|
||||
"open_payable": payable,
|
||||
"inventory_value": products.aggregate(v=Sum("total_purchase_value"))["v"] or 0,
|
||||
"low_stock_count": sum(1 for p in products if p.is_low_stock),
|
||||
"invoice_count": invoices.count(),
|
||||
"unpaid_invoice_count": invoices.filter(
|
||||
payment_status=Invoice.PaymentStatus.UNPAID
|
||||
).exclude(order_status=Invoice.OrderStatus.CANCELLED).count(),
|
||||
"customer_count": Customer.objects.filter(user=user).count(),
|
||||
"debtor_count": Customer.objects.filter(user=user, outstanding_balance__gt=0).count(),
|
||||
}
|
||||
)
|
||||
|
||||
|
||||
# ---------------- فایل‌های دفتر و دفتر معین ----------------
|
||||
|
||||
|
||||
class LedgerBookListView(generics.ListAPIView):
|
||||
"""فهرست فایل‌های دفتر — همیشه حداقل یک فایلِ جاری وجود دارد."""
|
||||
|
||||
serializer_class = LedgerBookSerializer
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def get_queryset(self):
|
||||
LedgerBookService.ensure_active_book(self.request.user)
|
||||
return LedgerBook.objects.filter(user=self.request.user)
|
||||
|
||||
|
||||
class OpenLedgerBookView(APIView):
|
||||
"""باز کردن فایل تازه — فایلِ جاری بسته می‌شود و (در صورت انتخاب) مانده
|
||||
به فایل جدید منتقل می‌گردد."""
|
||||
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def post(self, request):
|
||||
serializer = OpenLedgerBookSerializer(data=request.data)
|
||||
serializer.is_valid(raise_exception=True)
|
||||
book = LedgerBookService.open_new_book(
|
||||
request.user,
|
||||
name=serializer.validated_data["name"],
|
||||
start_date=serializer.validated_data["start_date"],
|
||||
end_date=serializer.validated_data.get("end_date"),
|
||||
carry_balance=serializer.validated_data.get("carry_balance", True),
|
||||
)
|
||||
return Response(LedgerBookSerializer(book).data, status=status.HTTP_201_CREATED)
|
||||
|
||||
|
||||
class LedgerBookSummaryView(APIView):
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def get(self, request, pk):
|
||||
book = LedgerBook.objects.filter(user=request.user, pk=pk).first()
|
||||
if book is None:
|
||||
raise NotFound("فایل دفتر یافت نشد.")
|
||||
return Response(
|
||||
{"book": LedgerBookSerializer(book).data, **LedgerBookService.summary(book)}
|
||||
)
|
||||
|
||||
|
||||
class SubsidiaryLedgerView(APIView):
|
||||
"""دفتر معین یک حساب — گردشِ حساب با مانده‌ی در جریان."""
|
||||
|
||||
permission_classes = [IsAuthenticated]
|
||||
|
||||
def get(self, request, pk):
|
||||
account = Account.objects.filter(user=request.user, pk=pk).first()
|
||||
if account is None:
|
||||
raise NotFound("حساب یافت نشد.")
|
||||
start = parse_date(request.query_params.get("start", "") or "")
|
||||
end = parse_date(request.query_params.get("end", "") or "")
|
||||
return Response(
|
||||
SubsidiaryLedgerService.statement(request.user, account, start, end)
|
||||
)
|
||||
|
||||
Reference in New Issue
Block a user