497bc87c24
Backend: - apps/materials 新規作成（Material, FertilizerProfile, PesticideProfile, StockTransaction） - 資材マスタ CRUD API（/api/materials/materials/） - 入出庫履歴 API（/api/materials/stock-transactions/） - 在庫集計 API（/api/materials/stock-summary/） - 既存 Fertilizer に material OneToOneField 追加（0005マイグレーション、データ移行込み） Frontend: - /materials: 在庫一覧画面（タブフィルタ、履歴展開、入出庫モーダル） - /materials/masters: 資材マスタ管理（肥料/農薬/その他タブ、インライン編集） - Navbar に「在庫管理」メニュー追加 - Material/StockTransaction/StockSummary 型定義追加 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
135 lines
4.7 KiB
Python
135 lines
4.7 KiB
Python
from decimal import Decimal
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from rest_framework import generics, status, viewsets
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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 .models import Material, StockTransaction
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from .serializers import (
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MaterialReadSerializer,
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MaterialWriteSerializer,
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StockSummarySerializer,
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StockTransactionSerializer,
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)
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class MaterialViewSet(viewsets.ModelViewSet):
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"""資材マスタ CRUD"""
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permission_classes = [IsAuthenticated]
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def get_queryset(self):
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queryset = Material.objects.select_related(
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'fertilizer_profile',
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'pesticide_profile',
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).prefetch_related('stock_transactions')
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material_type = self.request.query_params.get('material_type')
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if material_type:
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queryset = queryset.filter(material_type=material_type)
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active = self.request.query_params.get('active')
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if active is not None:
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queryset = queryset.filter(is_active=active.lower() == 'true')
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return queryset
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def get_serializer_class(self):
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if self.action in ['create', 'update', 'partial_update']:
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return MaterialWriteSerializer
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return MaterialReadSerializer
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def destroy(self, request, *args, **kwargs):
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instance = self.get_object()
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if instance.stock_transactions.exists():
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return Response(
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{'detail': 'この資材には入出庫履歴があるため削除できません。無効化してください。'},
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status=status.HTTP_400_BAD_REQUEST,
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)
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return super().destroy(request, *args, **kwargs)
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class StockTransactionViewSet(viewsets.ModelViewSet):
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"""入出庫履歴 CRUD"""
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serializer_class = StockTransactionSerializer
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permission_classes = [IsAuthenticated]
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http_method_names = ['get', 'post', 'delete', 'head', 'options']
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def get_queryset(self):
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queryset = StockTransaction.objects.select_related('material')
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material_id = self.request.query_params.get('material_id')
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if material_id:
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queryset = queryset.filter(material_id=material_id)
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material_type = self.request.query_params.get('material_type')
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if material_type:
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queryset = queryset.filter(material__material_type=material_type)
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date_from = self.request.query_params.get('date_from')
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if date_from:
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queryset = queryset.filter(occurred_on__gte=date_from)
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date_to = self.request.query_params.get('date_to')
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if date_to:
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queryset = queryset.filter(occurred_on__lte=date_to)
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return queryset
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class StockSummaryView(generics.ListAPIView):
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"""在庫集計一覧"""
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serializer_class = StockSummarySerializer
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permission_classes = [IsAuthenticated]
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def get_queryset(self):
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return Material.objects.none()
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def list(self, request, *args, **kwargs):
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queryset = Material.objects.prefetch_related('stock_transactions').order_by(
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'material_type',
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'name',
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)
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material_type = request.query_params.get('material_type')
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if material_type:
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queryset = queryset.filter(material_type=material_type)
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active = request.query_params.get('active')
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if active is not None:
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queryset = queryset.filter(is_active=active.lower() == 'true')
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results = []
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for material in queryset:
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transactions = list(material.stock_transactions.all())
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increase = sum(
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txn.quantity
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for txn in transactions
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if txn.transaction_type in StockTransaction.INCREASE_TYPES
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)
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decrease = sum(
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txn.quantity
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for txn in transactions
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if txn.transaction_type in StockTransaction.DECREASE_TYPES
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)
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last_date = max((txn.occurred_on for txn in transactions), default=None)
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results.append(
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{
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'material_id': material.id,
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'name': material.name,
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'material_type': material.material_type,
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'material_type_display': material.get_material_type_display(),
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'maker': material.maker,
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'stock_unit': material.stock_unit,
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'stock_unit_display': material.get_stock_unit_display(),
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'is_active': material.is_active,
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'current_stock': increase - decrease if transactions else Decimal('0'),
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'last_transaction_date': last_date,
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}
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)
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serializer = self.get_serializer(results, many=True)
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return Response(serializer.data)
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