采购订单的接口完成。

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

ERP_5/apps/purchase_info/serializers/purchase_serializer.py

@@ -0,0 +1,72 @@
+from django.db import transaction
+from rest_framework import serializers
+from rest_framework.exceptions import ValidationError
+
+from ERP_5.utils.get_inventory import get_inventory_by_goods
+from purchase_info.models import PurchaseModel, PurchaseItemModel
+
+
+class PurchaseItemsSerializer(serializers.ModelSerializer):
+    """
+    采购单中的项目 的序列化器
+    """
+    model_number = serializers.CharField(source='goods.model_number', read_only=True)
+    color = serializers.CharField(source='goods.color', read_only=True)
+    nits_name = serializers.CharField(source='goods.units.basic_name', read_only=True)
+    cur_inventory = serializers.SerializerMethodField(read_only=True)
+
+    class Meta:
+        model = PurchaseItemModel
+        fields = '__all__'
+
+    def get_cur_inventory(self, obj):
+        return get_inventory_by_goods(obj.goods.id)
+
+
+class PurchaseSerializer(serializers.ModelSerializer):
+    """
+    采购单的序列化器
+    """
+    # 采购单列表中需要展示的商品信息：
+    goods_info = serializers.SerializerMethodField(read_only=True)
+    # item_list 用于新增，修改，查询
+    item_list = PurchaseItemsSerializer(many=True)
+
+    class Meta:
+        model = PurchaseModel
+        fields = '__all__'
+
+    def create(self, validated_data):
+        item_list = validated_data.pop('item_list')
+        with transaction.atomic():
+            purchase = PurchaseModel.objects.create(**validated_data)
+            for item in item_list:
+                PurchaseItemModel.objects.create(purchase=purchase, **item)
+        return purchase
+
+    # 同时插入采购单和采购单中货品项。必须重写update
+    def update(self, instance, validated_data):
+        if instance.status != '0':
+            raise ValidationError("采购单已经生效，不能修改!")
+        item_list = validated_data.pop('item_list')
+        old_list = instance.item_list.all()
+        with transaction.atomic():
+            if old_list.exists():
+                # 然后把旧数据删除，因为在validated_data拿不到货品库存数据的ID
+                instance.item_list.all().delete()
+
+            for item in item_list:  # 重新插入采购项 数据
+                PurchaseItemModel.objects.create(purchase=instance, **item)
+            result = super(PurchaseSerializer, self).update(instance=instance, validated_data=validated_data)
+        return result
+
+    def get_goods_info(self, obj):
+        """
+        商品信息是由： 商品1名称 商品1规格 , 商品2名称 商品2规格 ，....
+        """
+        if obj.item_list.all():
+            result = []
+            for item in obj.item_list.all():
+                result.append(item.name + (item.specification if item.specification else ''))
+            return ', '.join(result)
+        return ""

ERP_5/apps/purchase_info/urls.py

@@ -16,7 +16,7 @@ Including another URLconf
 from django.contrib import admin
 from django.urls import path, re_path
 from rest_framework.routers import DefaultRouter
-# from .views import units_views, attachments_views, goods_category_views, goods_views
+from .views import purchase_view
 
 from rest_framework_jwt.views import obtain_jwt_token
 
@@ -26,6 +26,6 @@ urlpatterns = [
 ]
 
 router = DefaultRouter()
-# router.register('category', goods_category_views.CategoryView)
+router.register('purchases', purchase_view.PurchaseViewSet)
 
 urlpatterns += router.urls

ERP_5/apps/purchase_info/views.py

@@ -1,3 +0,0 @@
-from django.shortcuts import render
-
-# Create your views here.

ERP_5/apps/purchase_info/views/purchase_view.py

@@ -0,0 +1,106 @@
+from django.db.models import Q
+from drf_yasg import openapi
+from drf_yasg.utils import swagger_auto_schema
+from rest_framework import viewsets
+from rest_framework.decorators import action
+
+from ERP_5.utils.base_views import MultipleDestroyMixin, MultipleAuditMixin
+from ERP_5.utils.paginations import GlobalPagination
+from purchase_info.models import PurchaseModel
+from purchase_info.serializers.purchase_serializer import PurchaseSerializer
+
+
+class PurchaseViewSet(viewsets.ModelViewSet, MultipleDestroyMixin, MultipleAuditMixin):
+    """
+    create:
+    采购单--新增,注意：其中images_list="1,2,3,4";里面是附件的ID
+
+    采购单新增, status: 201(成功), return: 新增采购单信息
+
+    destroy:
+    采购单--删除
+
+    采购单删除, status: 204(成功), return: None
+
+    multiple_delete:
+    采购单--批量删除,必传参数：ids=[1,2,3,4...]
+
+    采购单批量删除, status: 204(成功), return: None
+
+    update:
+    采购单--修改,注意：其中images_list="1,2,3,4";里面是附件的ID
+
+    采购单修改, status: 200(成功), return: 修改后的采购单信息
+
+    partial_update:
+    采购单--局部修改,可以传参任意属性的值，服务器会修改指定的属性值
+
+    采购单局部修改, status: 200(成功), return: 修改后的采购单信息
+
+    list:
+    采购单--该接口可以弃用
+
+    采购单列表信息, status: 200(成功), return: 采购单信息列表
+
+    retrieve:
+    查询某一个采购单
+
+    查询指定ID的采购单, status: 200(成功), return: 用户采购单
+    """
+
+    queryset = PurchaseModel.objects.all()
+    serializer_class = PurchaseSerializer
+    pagination_class = GlobalPagination
+
+    def get_queryset(self):
+        if self.action == 'find':  # 过滤查询
+            # 获取请求参数(在json中)：
+            number_code = self.request.data.get('number_code', None)
+            keyword = self.request.data.get('keyword', None)
+            start_date = self.request.data.get('start_date', None)
+            end_date = self.request.data.get('start_date', None)
+            supplier = self.request.data.get('supplier', 0)
+            operator_user = self.request.data.get('operator_user', 0)
+            status = self.request.data.get('status', None)
+            query = Q()
+            if keyword:
+                child_query = Q()
+                child_query.add(Q(item_list__name__contains=keyword), 'OR')
+                child_query.add(Q(item_list__specification=keyword), 'OR')
+                query.add(child_query, 'AND')
+            if start_date:
+                query.add(Q(invoices_date__gt=start_date), 'AND')
+            if end_date:
+                query.add(Q(invoices_date__lt=end_date), 'AND')
+
+            if supplier:
+                query.add(Q(supplier__id=supplier), 'AND')
+            if number_code:
+                query.add(Q(number_code__contains=number_code), 'AND')
+            if operator_user:
+                query.add(Q(operator_user__id=operator_user), 'AND')
+            if status:
+                query.add(Q(status=status), 'AND')
+
+            return PurchaseModel.objects.filter(query).distinct().all()
+        else:
+            return PurchaseModel.objects.all()
+
+    params = openapi.Schema(type=openapi.TYPE_OBJECT, properties={
+        'keyword': openapi.Schema(type=openapi.TYPE_STRING, description="名称的关键字或者型号"),
+        'start_date': openapi.Schema(type=openapi.TYPE_STRING, description="起始日期2020-10-01"),
+        'number_code': openapi.Schema(type=openapi.TYPE_STRING, description="编号(序列号)"),
+        'end_date': openapi.Schema(type=openapi.TYPE_STRING, description="结束日期2020-10-01"),
+        'status': openapi.Schema(type=openapi.TYPE_STRING, description="状态0或者1,2,3.."),
+        'supplier': openapi.Schema(type=openapi.TYPE_INTEGER, description="供应商的ID"),
+        'operator_user': openapi.Schema(type=openapi.TYPE_INTEGER, description="操作用户的ID"),
+    })
+    # 分页参数必须是query_param(看源码)
+    page_param = openapi.Parameter(name='page', in_=openapi.IN_QUERY, description="页号", type=openapi.TYPE_INTEGER)
+    size_param = openapi.Parameter(name='size', in_=openapi.IN_QUERY, description="每页显示数量", type=openapi.TYPE_INTEGER)
+
+    @swagger_auto_schema(method='POST', request_body=params, manual_parameters=[page_param, size_param],
+                         operation_description="采购订单的搜索过滤")
+    @action(methods=['POST'], detail=False)
+    def find(self, request, *args, **kwargs):
+        return super(PurchaseViewSet, self).list(request=request, *args, **kwargs)

ERP_5/utils/base_views.py

@@ -6,6 +6,7 @@ from rest_framework.response import Response
 
 from ERP_5.utils.cont import NumberPrefix
 from ERP_5.utils.generate_code import generate_code
+from erp_system.models import UserModel
 
 
 class MultipleDestroyMixin:
@@ -83,3 +84,45 @@ class GenerateCode(views.APIView):
                 return Response(data={'detail': 'prefix没有配置，参考cont.py'}, status=status.HTTP_400_BAD_REQUEST)
         else:
             return Response(data={'detail': 'prefix没有，该参数必须传'}, status=status.HTTP_400_BAD_REQUEST)
+
+
+class MultipleAuditMixin:
+    """
+    自定义的 批量审核(反审核)的 视图函数
+    """
+
+    body_param = openapi.Schema(type=openapi.TYPE_OBJECT, required=['ids', 'user_id'], properties={
+        'ids': openapi.Schema(type=openapi.TYPE_ARRAY, items=openapi.Schema(type=openapi.TYPE_INTEGER),
+                              description="选择哪些需要批量的ID（主键）列表"),
+        'user_id': openapi.Schema(type=openapi.TYPE_INTEGER, description="审核人的用户ID"),
+        'is_audit': openapi.Schema(type=openapi.TYPE_STRING, description="是否审核，审核：1, 反审核：0")
+    })
+
+    @swagger_auto_schema(method='put', request_body=body_param, operation_description="批量审核或者 反审核")
+    @action(methods=['put'], detail=False)
+    def multiple_audit(self, request, *args, **kwargs):
+        audit_ids = request.data.get('ids')
+        user_id = request.data.get('user_id')  # 用户ID
+        is_audit = request.data.get('is_audit', '1')  # 是否审核，审核：1， 反审核：0
+
+        if not audit_ids:
+            return Response(data={'detail': '参数错误,ids为必传参数'}, status=status.HTTP_400_BAD_REQUEST)
+        if not isinstance(audit_ids, list):
+            return Response(data={'detail': 'ids格式错误,必须为List'}, status=status.HTTP_400_BAD_REQUEST)
+        queryset = self.get_queryset()
+        del_queryset = queryset.filter(id__in=audit_ids)
+        if len(audit_ids) != del_queryset.count():
+            return Response(data={'detail': '数据不存在'}, status=status.HTTP_400_BAD_REQUEST)
+        for item in del_queryset.all():
+            if item.status != '1' and is_audit == '0':  # 1以后的状态是不能反审核的
+                return Response(data={'detail': '不能反审核，因为订单已生效'}, status=status.HTTP_400_BAD_REQUEST)
+            if item.status != '0' and is_audit == '1':  # 0以后的状态是不能审核的
+                return Response(data={'detail': '不能审核，因为订单已生效'}, status=status.HTTP_400_BAD_REQUEST)
+
+
+        if not user_id:
+            return Response(data={'detail': '参数错误,user_id为必传参数'}, status=status.HTTP_400_BAD_REQUEST)
+        check_user = UserModel.objects.get(id=int(user_id))
+
+        del_queryset.update(status=is_audit, check_user_name=check_user.real_name, check_user_id=check_user.id)
+        return Response(status=status.HTTP_200_OK)