from apps.goods.models import Batch from extensions.serializers import * from extensions.exceptions import * from apps.stock_in.models import * from apps.system.models import * class StockInOrderSerializer(BaseSerializer): """入库单据""" class StockInGoodsSerializer(BaseSerializer): """入库商品""" goods_number = CharField(source='goods.number', read_only=True, label='商品编号') goods_name = CharField(source='goods.name', read_only=True, label='商品名称') goods_barcode = CharField(source='goods.barcode', read_only=True, label='商品条码') unit_name = CharField(source='goods.unit.name', read_only=True, label='单位名称') enable_batch_control = BooleanField(source='goods.enable_batch_control', read_only=True, label='启用批次控制') shelf_life_days = CharField(source='goods.shelf_life_days', read_only=True, label='保质期天数') class Meta: model = StockInGoods fields = ['id', 'goods', 'goods_number', 'goods_name', 'goods_barcode', 'stock_in_quantity', 'remain_quantity', 'unit_name', 'enable_batch_control', 'shelf_life_days', 'is_completed'] warehouse_number = CharField(source='warehouse.number', read_only=True, label='仓库编号') warehouse_name = CharField(source='warehouse.name', read_only=True, label='仓库名称') type_display = CharField(source='get_type_display', read_only=True, label='入库类型') purchase_order_number = CharField(source='purchase_order.number', read_only=True, label='采购单据编号') sales_return_order_number = CharField(source='sales_return_order.number', read_only=True, label='销售退货单据编号') stock_transfer_order_number = CharField(source='stock_transfer_order.number', read_only=True, label='调拨单据编号') creator_name = CharField(source='creator.name', read_only=True, label='创建人名称') stock_in_goods_items = StockInGoodsSerializer(source='stock_in_goods_set', many=True, label='入库商品') class Meta: model = StockInOrder fields = ['id', 'number', 'warehouse', 'warehouse_number', 'warehouse_name', 'type', 'type_display', 'purchase_order', 'purchase_order_number', 'sales_return_order', 'sales_return_order_number', 'stock_transfer_order', 'stock_transfer_order_number', 'total_quantity', 'remain_quantity', 'is_completed', 'is_void', 'creator', 'creator_name', 'create_time', 'stock_in_goods_items'] class StockInRecordSerializer(BaseSerializer): """入库记录""" class StockInRecordGoodsSerializer(BaseSerializer): """入库记录商品""" goods_number = CharField(source='goods.number', read_only=True, label='商品编号') goods_name = CharField(source='goods.name', read_only=True, label='商品名称') goods_barcode = CharField(source='goods.barcode', read_only=True, label='商品条码') unit_name = CharField(source='goods.unit.name', read_only=True, label='单位名称') batch_number = CharField(source='batch.number', required=False, label='批次编号') class Meta: model = StockInRecordGoods read_only_fields = ['id', 'goods', 'goods_number', 'goods_name', 'goods_barcode', 'unit_name', 'enable_batch_control', 'shelf_life_days', 'expiration_date'] fields = ['stock_in_goods', 'stock_in_quantity', 'production_date', 'batch_number', *read_only_fields] def validate_stock_in_goods(self, instance): instance = self.validate_foreign_key(StockInGoods, instance, message='入库商品不存在') if instance.is_void: raise ValidationError(f'入库商品[{instance.goods.name}]已作废') if instance.is_completed: raise ValidationError(f'入库商品[{instance.goods.name}]已完成') return instance def validate_stock_in_quantity(self, value): if value <= 0: raise ValidationError('入库数量小于或等于零') return value def validate(self, attrs): stock_in_goods = attrs['stock_in_goods'] goods = stock_in_goods.goods if stock_in_goods.remain_quantity < attrs['stock_in_quantity']: raise ValidationError(f'商品[{goods.name}]入库数量错误') if goods.enable_batch_control: if not (attrs.get('batch') or attrs['batch'].get('number')): raise ValidationError(f'商品[{goods.name}]批次编号为空') return super().validate(attrs) stock_in_order_number = CharField(source='stock_in_order.number', read_only=True, label='入库单据编号') warehouse_number = CharField(source='warehouse.number', read_only=True, label='仓库编号') warehouse_name = CharField(source='warehouse.name', read_only=True, label='仓库名称') handler_name = CharField(source='handler.name', read_only=True, label='经手人名称') creator_name = CharField(source='creator.name', read_only=True, label='创建人名称') stock_in_record_goods_items = StockInRecordGoodsSerializer(source='stock_in_record_goods_set', many=True, label='入库记录商品') class Meta: model = StockInRecord read_only_fields = ['id', 'stock_in_order_number', 'warehouse', 'warehouse_number', 'warehouse_name', 'handler_name', 'total_quantity', 'is_void', 'creator', 'creator_name', 'create_time'] fields = ['stock_in_order', 'handler', 'handle_time', 'remark', 'stock_in_record_goods_items', *read_only_fields] def validate_stock_in_order(self, instance): instance = self.validate_foreign_key(StockInOrder, instance, message='入库单据不存在') if instance.is_void: raise ValidationError(f'入库单据[{instance.number}]已作废') if instance.is_completed: raise ValidationError(f'入库单据[{instance.number}]已完成') return instance def validate_handler(self, instance): instance = self.validate_foreign_key(User, instance, message='经手人不存在') if not instance.is_active: raise ValidationError(f'经手人[{instance.name}]未激活') return instance @transaction.atomic def create(self, validated_data): stock_in_record_goods_items = validated_data.pop('stock_in_record_goods_set') stock_in_order = validated_data['stock_in_order'] validated_data['warehouse'] = stock_in_order.warehouse validated_data['creator'] = self.user stock_in_record = super().create(validated_data) total_stock_in_quantity = 0 # 创建入库记录商品 stock_in_record_goods_set = [] for stock_in_record_goods_item in stock_in_record_goods_items: stock_in_goods = stock_in_record_goods_item['stock_in_goods'] if stock_in_goods.stock_in_order != stock_in_order: raise ValidationError('入库商品错误') stock_in_quantity = stock_in_record_goods_item['stock_in_quantity'] goods = stock_in_goods.goods production_date = None expiration_date = None batch = None if goods.enable_batch_control: production_date = stock_in_record_goods_item.get('production_date') if production_date and goods.shelf_life_days: expiration_date = pendulum.parse(str(production_date)).add(days=goods.shelf_life_days) # 同步批次 batch_number = stock_in_record_goods_item['batch']['number'] if batch := Batch.objects.filter(number=batch_number, warehouse=stock_in_record.warehouse, goods=goods, team=self.team).first(): batch.total_quantity = NP.plus(batch.total_quantity, stock_in_quantity) batch.remain_quantity = NP.plus(batch.remain_quantity, stock_in_quantity) batch.save(update_fields=['total_quantity', 'remain_quantity']) else: batch = Batch.objects.create( number=batch_number, warehouse=stock_in_record.warehouse, goods=goods, total_quantity=stock_in_quantity, remain_quantity=stock_in_quantity, production_date=production_date, shelf_life_days=goods.shelf_life_days, expiration_date=expiration_date, team=self.team ) stock_in_record_goods_set.append(StockInRecordGoods( stock_in_record=stock_in_record, stock_in_goods=stock_in_goods, goods=goods, stock_in_quantity=stock_in_quantity, enable_batch_control=goods.enable_batch_control, production_date=production_date, shelf_life_days=goods.shelf_life_days, expiration_date=expiration_date, batch=batch, team=self.team )) total_stock_in_quantity = NP.plus(total_stock_in_quantity, stock_in_quantity) else: StockInRecordGoods.objects.bulk_create(stock_in_record_goods_set) stock_in_record.total_quantity = total_stock_in_quantity stock_in_record.save(update_fields=['total_quantity']) return stock_in_record __all__ = [ 'StockInOrderSerializer', 'StockInRecordSerializer', ]