feat: relaxed in restrict out

api_man/employee_user_binding.md

@@ -68,6 +68,13 @@ Base URL: `/api_man/user-profiles/`
 | PATCH | `/api_man/user-profiles/{id}/` | Partially update an existing user profile |
 | DELETE | `/api_man/user-profiles/{id}/` | Delete a user profile |
 
+### 2.3 User Creation API Endpoint
+Base URL: `/api_v1/users/`
+
+| Method | URL Pattern | Action |
+|--------|-------------|--------|
+| POST | `/api_v1/users/create/` | Create a new User and associated UserProfile |
+
 ## 3. Binding User to Employee
 
 ### 3.1 During Employee Creation
@@ -216,7 +223,70 @@ To update an existing UserProfile, use the PUT or PATCH method.
 }
 ```
 
-## 5. Validation Rules
+## 5. Creating User with Profile
+
+### 5.1 User and Profile Creation
+This API creates a new Django User and associated UserProfile in a single request. The UserProfile links the User to a specific Merchant.
+
+#### Request Body Example:
+```json
+{
+  "username": "newuser",
+  "email": "newuser@example.com",
+  "password": "securepass123",
+  "is_staff": false,
+  "description": "New user account",
+  "merchant_id": 1
+}
+```
+
+#### Request Parameters:
+- `username` (required): The username for the new user account
+- `email` (optional): The email address for the user
+- `password` (required): The password for the user account (minimum 6 characters)
+- `is_staff` (optional, default: false): Whether the user should have staff privileges
+- `description` (optional): Description for the UserProfile
+- `merchant_id` (required): ID of the merchant to associate with the user
+
+#### Response Example:
+```json
+{
+  "user": {
+    "id": 124,
+    "username": "newuser",
+    "email": "newuser@example.com",
+    "is_staff": false,
+    "is_active": true,
+    "date_joined": "2025-11-24T14:00:00Z"
+  },
+  "profile": {
+    "id": 790,
+    "user": {
+      "id": 124,
+      "username": "newuser",
+      "email": "newuser@example.com",
+      "is_staff": false,
+      "is_active": true,
+      "date_joined": "2025-11-24T14:00:00Z"
+    },
+    "merchant": 1,
+    "description": "New user account",
+    "created_at": "2025-11-24T14:00:00Z",
+    "updated_at": "2025-11-24T14:00:00Z"
+  }
+}
+```
+
+### 5.2 Authentication Requirements
+- The request must be authenticated with a valid user session
+- The authenticated user must have appropriate permissions to create new users
+
+### 5.3 Validation Rules
+- Username must be unique across the system
+- Password must be at least 6 characters long
+- merchant_id must correspond to an existing merchant in the system
+
+## 6. Validation Rules
 
 ### 5.1 Employee-User Binding Rules
 1. **One-to-one constraint**: A User can only be bound to one Employee at a time.
@@ -250,6 +320,78 @@ To update an existing UserProfile, use the PUT or PATCH method.
 }
 ```
 
+### 6.1 User Creation API Errors
+
+#### Username already exists
+```json
+{
+  "username": [
+    "用户名已存在"
+  ]
+}
+```
+
+#### Merchant does not exist
+```json
+{
+  "merchant_id": [
+    "商户不存在"
+  ]
+}
+```
+
+#### Password too short
+```json
+{
+  "password": [
+    "Ensure this field has at least 6 characters."
+  ]
+}
+```
+
+#### Unauthenticated request
+```json
+{
+  "error": "未授权"
+}
+```
+
+#### Server error during creation
+```json
+{
+  "error": "创建用户失败: [detailed error message]"
+}
+```
+
+## 7. Usage Examples
+
+### 7.1 Creating a Complete User Flow
+```bash
+# 1. Create a new user with profile
+curl -X POST http://localhost/api/v1/users/create/ \
+  -H "Content-Type: application/json" \
+  -H "Authorization: Bearer [token]" \
+  -d '{
+    "username": "john_doe",
+    "email": "john@example.com",
+    "password": "securepass123",
+    "description": "Store employee",
+    "merchant_id": 1
+  }'
+
+# Response will contain both user and profile IDs
+# Use the user ID to create an Employee record and bind the user
+curl -X POST http://localhost/api_man/employees/ \
+  -H "Content-Type: application/json" \
+  -H "Authorization: Bearer [token]" \
+  -d '{
+    "name": "John Doe",
+    "position": 1,
+    "mobile": "1234567890",
+    "sys_user": 124  # User ID from the previous response
+  }'
+```
+
 ### Invalid User ID
 ```json
 {

api_v1/serializers.py

@@ -55,6 +55,51 @@ class CreateStockChangeSerializer(serializers.Serializer):
         return value
 
 
+class RelaxedQuantitySerializer(serializers.Serializer):
+    """宽松模式数量结构"""
+    value = serializers.DecimalField(
+        max_digits=10,
+        decimal_places=2,
+        min_value=Decimal('0.01'),
+        help_text="产品总数量"
+    )
+    unit_count = serializers.DecimalField(
+        max_digits=10,
+        decimal_places=2,
+        min_value=Decimal('0.01'),
+        default=Decimal('1.00'),
+        help_text="单条（匹）数量，默认 1"
+    )
+
+
+class RelaxedProductStockChangeSerializer(serializers.Serializer):
+    """宽松模式产品序列化器"""
+    product = serializers.IntegerField(help_text="产品ID")
+    quantity = RelaxedQuantitySerializer(help_text="数量定义（总数与单条数）")
+
+    def validate_product(self, value: int) -> int:
+        try:
+            basic_info_models.Product.objects.get(id=value)
+        except basic_info_models.Product.DoesNotExist:
+            raise serializers.ValidationError(f"产品ID {value} 不存在")
+        return value
+
+
+class CreateStockChangeRelaxedSerializer(serializers.Serializer):
+    """宽松模式创建库存变动记录"""
+    products = RelaxedProductStockChangeSerializer(many=True, help_text="产品列表")
+
+    def validate_products(self, value: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+        if not value:
+            raise serializers.ValidationError("产品列表不能为空")
+
+        product_ids = [item['product'] for item in value]
+        if len(product_ids) != len(set(product_ids)):
+            raise serializers.ValidationError("产品列表中存在重复的产品ID")
+
+        return value
+
+
 class StockChangeRecordResponseSerializer(serializers.ModelSerializer):
     """库存变动记录响应序列化器"""
     

api_v1/tests.py

@@ -1,3 +1,112 @@
 from django.test import TestCase
+from django.contrib.auth.models import User, Permission
+from rest_framework.test import APIClient
+from rest_framework import status
+from basic_info.models import Merchant, UserProfile
 
-# Create your tests here.
+
+class UserCreationAPITestCase(TestCase):
+    """测试用户创建 API"""
+
+    def setUp(self):
+        """设置测试数据"""
+        # 创建商户
+        self.merchant = Merchant.objects.create(
+            name='测试商户',
+            type=1  # 假设1是有效的MerchantType
+        )
+        
+        # 创建管理员用户
+        self.admin_user = User.objects.create_user(
+            username='admin',
+            password='adminpass123',
+            is_staff=True
+        )
+        # 授予创建用户所需的权限
+        add_user_perm = Permission.objects.get(codename='add_user')
+        self.admin_user.user_permissions.add(add_user_perm)
+        self.admin_user.save()
+        
+        # 设置 API 客户端
+        self.client = APIClient()
+        self.client.force_authenticate(user=self.admin_user)
+
+    def test_create_user_with_profile(self):
+        """测试创建用户和用户资料"""
+        data = {
+            'username': 'testuser',
+            'email': 'test@example.com',
+            'password': 'testpass123',
+            'is_staff': False,
+            'description': '测试用户资料',
+            'merchant_id': self.merchant.id
+        }
+        response = self.client.post('/api/v1/users/create/', data, format='json')
+        self.assertEqual(response.status_code, status.HTTP_201_CREATED)
+        
+        # 验证返回的数据
+        self.assertIn('user', response.data)
+        self.assertIn('profile', response.data)
+        self.assertEqual(response.data['user']['username'], 'testuser')
+        self.assertEqual(response.data['user']['email'], 'test@example.com')
+        self.assertEqual(response.data['user']['is_staff'], False)
+        self.assertEqual(response.data['profile']['description'], '测试用户资料')
+        self.assertEqual(response.data['profile']['merchant'], self.merchant.id)
+        
+        # 验证数据库中的用户
+        user = User.objects.get(username='testuser')
+        self.assertEqual(user.email, 'test@example.com')
+        self.assertFalse(user.is_staff)
+        
+        # 验证数据库中的用户资料
+        profile = UserProfile.objects.get(user=user)
+        self.assertEqual(profile.merchant, self.merchant)
+        self.assertEqual(profile.description, '测试用户资料')
+
+    def test_create_user_with_duplicate_username(self):
+        """测试创建用户时使用重复的用户名"""
+        # 先创建一个用户
+        User.objects.create_user(username='existinguser', password='pass123')
+        
+        data = {
+            'username': 'existinguser',  # 重复的用户名
+            'password': 'testpass123',
+            'merchant_id': self.merchant.id
+        }
+        response = self.client.post('/api/v1/users/create/', data, format='json')
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertIn('username', response.data)
+
+    def test_create_user_with_invalid_merchant(self):
+        """测试创建用户时使用无效的merchant_id"""
+        data = {
+            'username': 'testuser',
+            'password': 'testpass123',
+            'merchant_id': 999  # 不存在的merchant_id
+        }
+        response = self.client.post('/api/v1/users/create/', data, format='json')
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertIn('merchant_id', response.data)
+
+    def test_create_user_unauthenticated(self):
+        """测试未认证用户创建用户"""
+        self.client.force_authenticate(user=None)
+        
+        data = {
+            'username': 'testuser',
+            'password': 'testpass123',
+            'merchant_id': self.merchant.id
+        }
+        response = self.client.post('/api/v1/users/create/', data, format='json')
+        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)
+
+    def test_create_user_with_short_password(self):
+        """测试创建用户时密码过短"""
+        data = {
+            'username': 'testuser',
+            'password': '123',  # 密码过短
+            'merchant_id': self.merchant.id
+        }
+        response = self.client.post('/api/v1/users/create/', data, format='json')
+        self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
+        self.assertIn('password', response.data)

api_v1/urls.py

@@ -1,11 +1,12 @@
 from django.urls import path, include
 from rest_framework.routers import DefaultRouter
-from .views import stock_change_views, user_info, inventory, product_image, stateflow
+from .views import stock_change_views, user_info, inventory, product_image, stateflow, users
 from .views.stock_change_views.snapshot import StockSnapshotListView
 from .views.printing.views import PrintingOrderViewSet, PrintingJobViewSet, PlateOrderViewSet
 from .views.upload import UploadFileViewSet
 from .views.products import ProductQuickViewSet
 from .views.parameters import StateParameterViewSet
+from .views.users import CreateUserWithProfileView
 
 # 创建 DRF Router for Stateflow
 stateflow_router = DefaultRouter()
@@ -27,6 +28,7 @@ urlpatterns = [
     path('stock-snapshots/', StockSnapshotListView.as_view(), name='list_stock_snapshots'),
     path('stock-changes/', stock_change_views.list_stock_changes, name='list_stock_changes'),
     path('stock-change/', stock_change_views.create_full_stock_change, name='create_full_stock_change'),
+    path('stock-change/relaxed/', stock_change_views.create_relaxed_stock_change, name='create_relaxed_stock_change'),
     path('stock-change/<int:record_id>/', stock_change_views.get_stock_change, name='get_stock_change'),
     path(
         'set-merchant-auto-complete-stock-change/', 
@@ -37,6 +39,9 @@ urlpatterns = [
     # 用户信息 API
     path('user-info/', user_info.user_info, name='user_info'),
     
+    # 用户创建 API
+    path('users/create/', CreateUserWithProfileView.as_view(), name='create_user_with_profile'),
+    
     # 库存查询 API
     path('inventory/', inventory.InventoryAPIView.as_view(), name='inventory'),
     

api_v1/views/__init__.py

@@ -20,4 +20,5 @@ __all__ = [
     'get_stock_change',
     'set_merchant_auto_complete_stock_change',
     'stateflow',
+    'create_user_with_profile',
 ]

api_v1/views/stock_change_views/README.md

@@ -63,6 +63,7 @@ stock_change_views/
 ```python
 # 这些接口保持不变，URL 配置无需修改
 create_full_stock_change = CreateStockChangeView.as_view()
+create_relaxed_stock_change = CreateStockChangeRelaxedView.as_view()
 list_stock_changes = ListStockChangesView.as_view()
 get_stock_change = GetStockChangeView.as_view()
 set_merchant_auto_complete_stock_change = SetMerchantAutoCompleteView.as_view()
@@ -87,6 +88,7 @@ from api_v1.views import stock_change_views
 
 urlpatterns = [
     path('stock-change/', stock_change_views.create_full_stock_change),
+    path('stock-change/relaxed/', stock_change_views.create_relaxed_stock_change),
     path('stock-changes/', stock_change_views.list_stock_changes),
     path('stock-change/<int:record_id>/', stock_change_views.get_stock_change),
     path('set-merchant-auto-complete-stock-change/', stock_change_views.set_merchant_auto_complete_stock_change),
@@ -98,6 +100,7 @@ urlpatterns = [
 ```python
 from api_v1.views.stock_change_views import (
     CreateStockChangeView,
+    CreateStockChangeRelaxedView,
     ListStockChangesView,
     GetStockChangeView,
     SetMerchantAutoCompleteView,
@@ -105,6 +108,7 @@ from api_v1.views.stock_change_views import (
 
 urlpatterns = [
     path('stock-change/', CreateStockChangeView.as_view()),
+    path('stock-change/relaxed/', CreateStockChangeRelaxedView.as_view()),
     path('stock-changes/', ListStockChangesView.as_view()),
     path('stock-change/<int:record_id>/', GetStockChangeView.as_view()),
     path('set-merchant-auto-complete-stock-change/', SetMerchantAutoCompleteView.as_view()),

api_v1/views/stock_change_views/__init__.py

@@ -5,13 +5,14 @@
 """
 
 from .mixins import StockChangeViewMixin
-from .create import CreateStockChangeView
+from .create import CreateStockChangeView, CreateStockChangeRelaxedView
 from .list import ListStockChangesView
 from .detail import GetStockChangeView
 from .settings import SetMerchantAutoCompleteView
 
 # 向后兼容：保持原有的函数式接口
 create_full_stock_change = CreateStockChangeView.as_view()
+create_relaxed_stock_change = CreateStockChangeRelaxedView.as_view()
 list_stock_changes = ListStockChangesView.as_view()
 get_stock_change = GetStockChangeView.as_view()
 set_merchant_auto_complete_stock_change = SetMerchantAutoCompleteView.as_view()
@@ -19,10 +20,12 @@ set_merchant_auto_complete_stock_change = SetMerchantAutoCompleteView.as_view()
 __all__ = [
     'StockChangeViewMixin',
     'CreateStockChangeView',
+    'CreateStockChangeRelaxedView',
     'ListStockChangesView',
     'GetStockChangeView',
     'SetMerchantAutoCompleteView',
     'create_full_stock_change',
+    'create_relaxed_stock_change',
     'list_stock_changes',
     'get_stock_change',
     'set_merchant_auto_complete_stock_change',

api_v1/views/stock_change_views/create.py

@@ -126,3 +126,89 @@ class CreateStockChangeView(StockChangeViewMixin, views.APIView):
                 'error': '创建库存变动记录失败',
                 'message': str(e)
             }, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+
+
+class CreateStockChangeRelaxedView(StockChangeViewMixin, views.APIView):
+    """宽松模式：根据总量与单条数量拆分的出入库记录"""
+
+    permission_classes = [IsAuthenticated]
+
+    @extend_schema(
+        tags=['创建出入库'],
+        request=serializers.CreateStockChangeRelaxedSerializer,
+        responses={201: serializers.CreateStockChangeResponseSerializer},
+        summary="创建库存变动记录（宽松模式）",
+        description="根据总数量与单条数量自动拆分明细"
+    )
+    def post(self, request):
+        if not self.check_employee_permission(request):
+            return self.permission_error_response('无权限访问')
+
+        record_data = {
+            'type': request.data.get('type'),
+            'warehouse': request.data.get('warehouse'),
+            'source_type': request.data.get('source_type'),
+            'source_id': request.data.get('source_id'),
+        }
+
+        if not all([record_data['type'], record_data['warehouse'], record_data['source_type']]):
+            return Response({
+                'error': '缺少必要参数',
+                'message': '请提供 type, warehouse, source_type'
+            }, status=status.HTTP_400_BAD_REQUEST)
+
+        products_data = request.data.get('products', [])
+        if not products_data:
+            return Response({
+                'error': '产品列表不能为空'
+            }, status=status.HTTP_400_BAD_REQUEST)
+
+        if not self.validate_warehouse_visibility(record_data['warehouse'], request):
+            return Response({
+                'error': f'仓库ID {record_data["warehouse"]} 对当前用户不可见'
+            }, status=status.HTTP_403_FORBIDDEN)
+
+        for p in products_data:
+            product_id = p.get('product')
+            if not self.validate_product_visibility(product_id, request):
+                return Response({
+                    'error': f'产品ID {product_id} 对当前用户不可见'
+                }, status=status.HTTP_403_FORBIDDEN)
+
+        serializer = serializers.CreateStockChangeRelaxedSerializer(data={'products': products_data})
+        if not serializer.is_valid():
+            return Response({
+                'error': '产品数据验证失败',
+                'details': serializer.errors
+            }, status=status.HTTP_400_BAD_REQUEST)
+
+        try:
+            stock_change_record, created_details, created_count = stock_services.create_stock_change_record_relaxed(
+                merchant=request.user.employee.merchant,
+                created_by=request.user,
+                type=record_data['type'],
+                warehouse_id=record_data['warehouse'],
+                source_type=record_data['source_type'],
+                source_id=record_data['source_id'],
+                products=products_data,
+            )
+            response_serializer = serializers.CreateStockChangeResponseSerializer({
+                'stock_change_record': stock_change_record,
+                'details': created_details,
+                'message': f'成功创建库存变动记录及 {created_count} 条明细',
+                'created_details_count': created_count
+            })
+
+            return Response(response_serializer.data, status=status.HTTP_201_CREATED)
+
+        except ValueError as e:
+            return Response({
+                'error': str(e)
+            }, status=status.HTTP_400_BAD_REQUEST)
+
+        except Exception as e:
+            logger.error(f"创建宽松模式库存变动记录失败: {str(e)}", exc_info=True)
+            return Response({
+                'error': '创建库存变动记录失败',
+                'message': str(e)
+            }, status=status.HTTP_500_INTERNAL_SERVER_ERROR)

api_v1/views/users.py

@@ -0,0 +1,123 @@
+from django.contrib.auth.models import User
+from rest_framework.decorators import permission_classes
+from rest_framework.permissions import IsAuthenticated, DjangoModelPermissions
+from rest_framework.response import Response
+from rest_framework.pagination import LimitOffsetPagination
+from rest_framework import status, serializers
+from rest_framework.generics import GenericAPIView
+from basic_info.models import UserProfile
+
+
+class UserCreationSerializer(serializers.Serializer):
+    """用户创建序列化器"""
+    username = serializers.CharField(max_length=150)
+    email = serializers.EmailField(required=False)
+    password = serializers.CharField(min_length=6, write_only=True)
+    is_staff = serializers.BooleanField(default=False)
+    description = serializers.CharField(required=False, allow_blank=True)
+    merchant_id = serializers.IntegerField()
+
+    def validate_username(self, value):
+        """验证用户名是否已存在"""
+        if User.objects.filter(username=value).exists():
+            raise serializers.ValidationError("用户名已存在")
+        return value
+
+    def validate_merchant_id(self, value):
+        """验证merchant_id是否存在"""
+        from basic_info.models import Merchant
+        if not Merchant.objects.filter(id=value).exists():
+            raise serializers.ValidationError("商户不存在")
+        return value
+
+
+class UserSerializer(serializers.ModelSerializer):
+    """用户信息序列化器"""
+    class Meta:
+        model = User
+        fields = ['id', 'username', 'email', 'is_staff', 'is_active', 'date_joined']
+
+
+class UserProfileDetailSerializer(serializers.ModelSerializer):
+    """用户资料详细信息序列化器"""
+    user = UserSerializer(read_only=True)
+    
+    class Meta:
+        model = UserProfile
+        fields = ['id', 'user', 'merchant', 'description', 'created_at', 'updated_at']
+
+
+class CreateUserWithProfileView(GenericAPIView):
+    """创建用户和关联的用户资料信息视图"""
+    queryset = User.objects.all()
+    permission_classes = [IsAuthenticated, DjangoModelPermissions]
+    pagination_class = LimitOffsetPagination
+
+    def post(self, request):
+        """
+        创建用户和用户资料
+
+        POST /api/v1/users/create/
+
+        请求参数:
+        - username: 用户名 (必需)
+        - email: 邮箱 (可选)
+        - password: 密码 (必需, 最少6位)
+        - is_staff: 是否为员工 (可选, 默认为False)
+        - description: 用户资料描述 (可选)
+        - merchant_id: 商户ID (必需)
+
+        返回:
+        - user: 创建的用户信息
+        - profile: 创建的用户资料信息
+        """
+        # 检查当前用户是否有权限（超级用户或有员工身份）
+        if not request.user.is_authenticated:
+            return Response({'error': '未授权'}, status=status.HTTP_401_UNAUTHORIZED)
+
+        # 序列化和验证请求数据
+        serializer = UserCreationSerializer(data=request.data)
+        if not serializer.is_valid():
+            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+
+        username = serializer.validated_data['username']
+        email = serializer.validated_data.get('email', '')
+        password = serializer.validated_data['password']
+        is_staff = serializer.validated_data.get('is_staff', False)
+        description = serializer.validated_data.get('description', '')
+        merchant_id = serializer.validated_data['merchant_id']
+
+        try:
+            # 创建用户
+            user = User.objects.create_user(
+                username=username,
+                email=email,
+                password=password,
+                is_staff=is_staff
+            )
+
+            # 创建用户资料
+            from basic_info.models import Merchant
+            merchant = Merchant.objects.get(id=merchant_id)
+            profile = UserProfile.objects.create(
+                user=user,
+                merchant=merchant,
+                description=description
+            )
+
+            # 返回创建的用户和用户资料信息
+            user_data = UserSerializer(user).data
+            profile_data = UserProfileDetailSerializer(profile).data
+
+            return Response({
+                'user': user_data,
+                'profile': profile_data
+            }, status=status.HTTP_201_CREATED)
+
+        except Exception as e:
+            # 如果创建过程中出现错误，删除已创建的用户
+            if 'user' in locals():
+                user.delete()
+            return Response({
+                'error': f'创建用户失败: {str(e)}'
+            }, status=status.HTTP_500_INTERNAL_SERVER_ERROR)

stock/services.py

@@ -4,6 +4,7 @@ from django.db.models import Sum
 from django.utils import timezone
 from sse.services import push_simple_message_with_object_id
 from basic_info import models as basic_models
+from decimal import Decimal, InvalidOperation
 import logging
 from typing import List, Dict, Any, Tuple
 
@@ -11,6 +12,26 @@ from typing import List, Dict, Any, Tuple
 logger = logging.getLogger(__name__)
 
 
+def _raise_unimplemented_mode():
+    raise ValueError('仓库出入库模式为【严进严出】，该模式暂未支持创建出入库记录')
+
+
+def _ensure_strict_mode(warehouse: basic_models.WareHouse):
+    if warehouse.mode == basic_models.WareHouseModeEnum.RESTRICT_IN:
+        return
+    if warehouse.mode == basic_models.WareHouseModeEnum.RESTRICT_IN_OUT:
+        _raise_unimplemented_mode()
+    raise ValueError('仓库出入库模式为【宽进宽出】，请使用宽松模式接口创建出入库记录')
+
+
+def _ensure_relaxed_mode(warehouse: basic_models.WareHouse):
+    if warehouse.mode == basic_models.WareHouseModeEnum.UNRESTRICTED:
+        return
+    if warehouse.mode == basic_models.WareHouseModeEnum.RESTRICT_IN_OUT:
+        _raise_unimplemented_mode()
+    raise ValueError('仓库出入库模式为【严进宽出】，请使用严谨模式接口创建出入库记录')
+
+
 def create_stock_change_record_with_details(
     *,
     merchant: basic_models.Merchant,
@@ -48,6 +69,7 @@ def create_stock_change_record_with_details(
 
     if warehouse.merchant_id != merchant.id:
         raise ValueError('仓库不属于当前商户')
+    _ensure_strict_mode(warehouse)
 
     created_details: List[models.StockChangeDetail] = []
     created_count = 0
@@ -96,6 +118,116 @@ def create_stock_change_record_with_details(
     return stock_change_record, created_details, created_count
 
 
+def _to_decimal(value, field_name: str) -> Decimal:
+    try:
+        return Decimal(str(value))
+    except (InvalidOperation, TypeError):
+        raise ValueError(f'{field_name} 必须是合法的数值')
+
+
+def _split_quantities(total: Decimal, unit_size: Decimal) -> List[Decimal]:
+    if total <= 0:
+        raise ValueError('quantity.value 必须大于 0')
+    if unit_size <= 0:
+        raise ValueError('quantity.unit_count 必须大于 0')
+
+    quantities: List[Decimal] = []
+    num_full = int(total // unit_size)
+    remainder = total % unit_size
+
+    if num_full == 0:
+        quantities.append(total)
+    else:
+        quantities.extend([unit_size] * num_full)
+        if remainder > 0:
+            quantities.append(remainder)
+
+    return quantities
+
+
+def create_stock_change_record_relaxed(
+    *,
+    merchant: basic_models.Merchant,
+    created_by,
+    type: int,
+    warehouse_id: int,
+    source_type: int,
+    source_id: int | None = None,
+    products: List[Dict[str, Any]] | None = None,
+) -> Tuple[models.StockChangeRecord, List[models.StockChangeDetail], int]:
+    """
+    宽松模式：根据总数量和单条数量自动拆分明细
+    """
+
+    if not merchant:
+        raise ValueError('必须提供商户信息')
+    if not warehouse_id:
+        raise ValueError('必须提供仓库ID')
+    if not products:
+        raise ValueError('产品列表不能为空')
+
+    try:
+        warehouse = basic_models.WareHouse.objects.get(id=warehouse_id)
+    except basic_models.WareHouse.DoesNotExist:
+        raise ValueError(f'仓库ID {warehouse_id} 不存在')
+
+    if warehouse.merchant_id != merchant.id:
+        raise ValueError('仓库不属于当前商户')
+    _ensure_relaxed_mode(warehouse)
+
+    created_details: List[models.StockChangeDetail] = []
+
+    with transaction.atomic():
+        stock_change_record = models.StockChangeRecord.objects.create(
+            type=type,
+            warehouse=warehouse,
+            source_type=source_type,
+            source_id=source_id,
+            merchant=merchant,
+            created_by=created_by,
+        )
+        logger.info('创建宽松模式库存变动记录 ID: %s', stock_change_record.id)
+
+        for product_data in products:
+            product_id = product_data.get('product')
+            quantity_data = product_data.get('quantity') or {}
+
+            if not product_id:
+                raise ValueError('产品ID不能为空')
+
+            total_value = quantity_data.get('value')
+            unit_size = quantity_data.get('unit_count', 1)
+
+            total_value = _to_decimal(total_value, 'quantity.value')
+            unit_size = _to_decimal(unit_size, 'quantity.unit_count')
+
+            try:
+                product = basic_models.Product.objects.get(id=product_id)
+            except basic_models.Product.DoesNotExist:
+                raise ValueError(f'产品ID {product_id} 不存在')
+
+            if product.merchant_id != merchant.id:
+                raise ValueError(f'产品ID {product_id} 不属于当前商户')
+
+            quantities = _split_quantities(total_value, unit_size)
+
+            for quantity in quantities:
+                detail = models.StockChangeDetail.objects.create(
+                    stock_change_record=stock_change_record,
+                    product=product,
+                    quantity=quantity,
+                    merchant=merchant,
+                    unit=product.unit,
+                )
+                created_details.append(detail)
+
+        if warehouse.merchant.auto_complete_stock_change:
+            make_stock_change_completed(stock_change_record)
+            logger.info('自动确认宽松模式库存变动记录 ID: %s', stock_change_record.id)
+
+    return stock_change_record, created_details, len(created_details)
+
+
 def find_inventory(product_id: int, warehouse_id: int) -> models.Inventory | None:
     """根据产品ID和仓库ID查找库存记录"""
 

stock/tests.py

@@ -5,7 +5,7 @@ from decimal import Decimal
 from unittest.mock import patch, MagicMock
 import logging
 
-from basic_info.models import Product, WareHouse, Supplier, ProductUnitEnum, ProductCategory, Merchant, MerchantTypeEnum
+from basic_info.models import Product, WareHouse, Supplier, ProductUnitEnum, ProductCategory, Merchant, MerchantTypeEnum, WareHouseModeEnum
 from . import models, services
 
 
@@ -438,6 +438,191 @@ class CreateStockChangeRecordWithDetailsTestCase(StockServicesTestCase):
                 products=products,
             )
 
+    def test_strict_mode_requires_restrict_in(self):
+        """严谨模式仅允许在严进宽出仓库中使用"""
+        self.warehouse_main.mode = WareHouseModeEnum.UNRESTRICTED
+        self.warehouse_main.save()
+
+        with self.assertRaises(ValueError) as ctx:
+            services.create_stock_change_record_with_details(
+                merchant=self.merchant,
+                created_by=None,
+                type=models.StockChangeTypeEnum.ADD,
+                warehouse_id=self.warehouse_main.id,
+                source_type=models.StockChangeSourceEnum.PURCHASE,
+                source_id=self.purchase_order.id,
+                products=[{'product': self.product_fabric_a.id, 'quantity': [Decimal('10.00')]}],
+            )
+
+        self.assertIn('宽进宽出', str(ctx.exception))
+
+    def test_strict_mode_not_implemented_for_restrict_in_out(self):
+        """严进严出模式暂不支持"""
+        self.warehouse_main.mode = WareHouseModeEnum.RESTRICT_IN_OUT
+        self.warehouse_main.save()
+
+        with self.assertRaises(ValueError) as ctx:
+            services.create_stock_change_record_with_details(
+                merchant=self.merchant,
+                created_by=None,
+                type=models.StockChangeTypeEnum.ADD,
+                warehouse_id=self.warehouse_main.id,
+                source_type=models.StockChangeSourceEnum.PURCHASE,
+                source_id=self.purchase_order.id,
+                products=[{'product': self.product_fabric_a.id, 'quantity': [Decimal('10.00')]}],
+            )
+
+        self.assertIn('严进严出', str(ctx.exception))
+
+
+class CreateStockChangeRecordRelaxedTestCase(StockServicesTestCase):
+    """测试宽松模式的库存变动创建"""
+
+    def setUp(self):
+        super().setUp()
+        self.warehouse_main.mode = WareHouseModeEnum.UNRESTRICTED
+        self.warehouse_main.save()
+
+    def test_relaxed_even_split(self):
+        products = [
+            {
+                'product': self.product_fabric_a.id,
+                'quantity': {'value': Decimal('100.00'), 'unit_count': Decimal('25.00')},
+            }
+        ]
+
+        record, details, created_count = services.create_stock_change_record_relaxed(
+            merchant=self.merchant,
+            created_by=None,
+            type=models.StockChangeTypeEnum.ADD,
+            warehouse_id=self.warehouse_main.id,
+            source_type=models.StockChangeSourceEnum.PURCHASE,
+            source_id=self.purchase_order.id,
+            products=products,
+        )
+
+        self.assertEqual(created_count, 4)
+        self.assertEqual(record.details.count(), 4)
+        self.assertListEqual(
+            [detail.quantity for detail in details],
+            [Decimal('25.00')] * 4,
+        )
+
+    def test_relaxed_with_remainder(self):
+        products = [
+            {
+                'product': self.product_fabric_a.id,
+                'quantity': {'value': Decimal('105.00'), 'unit_count': Decimal('30.00')},
+            }
+        ]
+
+        _, details, created_count = services.create_stock_change_record_relaxed(
+            merchant=self.merchant,
+            created_by=None,
+            type=models.StockChangeTypeEnum.ADD,
+            warehouse_id=self.warehouse_main.id,
+            source_type=models.StockChangeSourceEnum.PURCHASE,
+            source_id=self.purchase_order.id,
+            products=products,
+        )
+
+        self.assertEqual(created_count, 4)
+        self.assertListEqual(
+            [detail.quantity for detail in details],
+            [Decimal('30.00'), Decimal('30.00'), Decimal('30.00'), Decimal('15.00')],
+        )
+
+    def test_relaxed_invalid_unit_count(self):
+        products = [
+            {
+                'product': self.product_fabric_a.id,
+                'quantity': {'value': Decimal('50.00'), 'unit_count': Decimal('0')},
+            }
+        ]
+
+        with self.assertRaises(ValueError):
+            services.create_stock_change_record_relaxed(
+                merchant=self.merchant,
+                created_by=None,
+                type=models.StockChangeTypeEnum.ADD,
+                warehouse_id=self.warehouse_main.id,
+                source_type=models.StockChangeSourceEnum.PURCHASE,
+                source_id=self.purchase_order.id,
+                products=products,
+            )
+
+    def test_relaxed_auto_complete_triggers_completion(self):
+        self.merchant.auto_complete_stock_change = True
+        self.merchant.save()
+
+        products = [
+            {
+                'product': self.product_fabric_a.id,
+                'quantity': {'value': Decimal('10.00'), 'unit_count': Decimal('2.00')},
+            }
+        ]
+
+        with patch('stock.services.make_stock_change_completed') as mock_complete:
+            services.create_stock_change_record_relaxed(
+                merchant=self.merchant,
+                created_by=None,
+                type=models.StockChangeTypeEnum.ADD,
+                warehouse_id=self.warehouse_main.id,
+                source_type=models.StockChangeSourceEnum.PURCHASE,
+                source_id=self.purchase_order.id,
+                products=products,
+            )
+
+        mock_complete.assert_called_once()
+
+    def test_relaxed_mode_requires_unrestricted(self):
+        self.warehouse_main.mode = WareHouseModeEnum.RESTRICT_IN
+        self.warehouse_main.save()
+
+        products = [
+            {
+                'product': self.product_fabric_a.id,
+                'quantity': {'value': Decimal('10.00'), 'unit_count': Decimal('2.00')},
+            }
+        ]
+
+        with self.assertRaises(ValueError) as ctx:
+            services.create_stock_change_record_relaxed(
+                merchant=self.merchant,
+                created_by=None,
+                type=models.StockChangeTypeEnum.ADD,
+                warehouse_id=self.warehouse_main.id,
+                source_type=models.StockChangeSourceEnum.PURCHASE,
+                source_id=self.purchase_order.id,
+                products=products,
+            )
+
+        self.assertIn('严进宽出', str(ctx.exception))
+
+    def test_relaxed_mode_not_implemented_for_restrict_in_out(self):
+        self.warehouse_main.mode = WareHouseModeEnum.RESTRICT_IN_OUT
+        self.warehouse_main.save()
+
+        products = [
+            {
+                'product': self.product_fabric_a.id,
+                'quantity': {'value': Decimal('10.00'), 'unit_count': Decimal('2.00')},
+            }
+        ]
+
+        with self.assertRaises(ValueError) as ctx:
+            services.create_stock_change_record_relaxed(
+                merchant=self.merchant,
+                created_by=None,
+                type=models.StockChangeTypeEnum.ADD,
+                warehouse_id=self.warehouse_main.id,
+                source_type=models.StockChangeSourceEnum.PURCHASE,
+                source_id=self.purchase_order.id,
+                products=products,
+            )
+
+        self.assertIn('严进严出', str(ctx.exception))
+    
     def test_complete_outbound_record(self):
         """测试完成出库记录"""
         # 创建现有库存