feat: big version, added tasks for backup_database and stock change, added health check api, approve sse (support channel via merchant)

api_v1/views/purchase_order.py

@@ -0,0 +1,72 @@
+from decimal import Decimal, InvalidOperation
+
+from rest_framework import status, views
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+
+from basic_info import models as basic_models
+from business import services as business_services
+from .stock_change_views.mixins import StockChangeViewMixin
+
+
+class PurchaseOrderView(StockChangeViewMixin, views.APIView):
+    """创建采购订单并触发入库任务"""
+
+    permission_classes = [IsAuthenticated]
+
+    def post(self, request):
+        if not self.check_employee_permission(request):
+            return self.permission_error_response('无权限访问')
+
+        merchant = request.user.employee.merchant
+        data = request.data or {}
+
+        supplier_id = data.get('supplier')
+        warehouse_id = data.get('warehouse')
+        order_date = data.get('order_date')
+        total_amount = data.get('total_amount')
+        items = data.get('items', [])
+        remarks = data.get('remarks', '')
+
+        if not supplier_id:
+            return Response({'error': '缺少供应商 ID'}, status=status.HTTP_400_BAD_REQUEST)
+        if not warehouse_id:
+            return Response({'error': '缺少仓库 ID'}, status=status.HTTP_400_BAD_REQUEST)
+
+        try:
+            supplier = basic_models.Supplier.objects.get(id=supplier_id, merchant=merchant)
+        except basic_models.Supplier.DoesNotExist:
+            return Response({'error': f'供应商 {supplier_id} 不存在'}, status=status.HTTP_400_BAD_REQUEST)
+
+        try:
+            basic_models.WareHouse.objects.get(id=warehouse_id, merchant=merchant)
+        except basic_models.WareHouse.DoesNotExist:
+            return Response({'error': f'仓库 {warehouse_id} 不存在'}, status=status.HTTP_400_BAD_REQUEST)
+
+        try:
+            total_amount_decimal = Decimal(str(total_amount))
+        except (InvalidOperation, TypeError):
+            return Response({'error': 'total_amount 必须为合法数值'}, status=status.HTTP_400_BAD_REQUEST)
+
+        try:
+            purchase_order = business_services.create_purchase_order(
+                merchant=merchant,
+                supplier=supplier,
+                order_date=order_date,
+                total_amount=total_amount_decimal,
+                warehouse_id=warehouse_id,
+                items=items,
+                remarks=remarks,
+                created_by=request.user,
+            )
+        except ValueError as exc:
+            return Response({'error': str(exc)}, status=status.HTTP_400_BAD_REQUEST)
+
+        return Response(
+            {
+                'id': purchase_order.id,
+                'message': '采购单创建成功，入库任务已排队',
+            },
+            status=status.HTTP_201_CREATED,
+        )
+