feat: mio 列表接口新增 total_price 返回明细金额合计

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/inm/serializers.py

@@ -10,6 +10,7 @@ from apps.utils.serializers import CustomModelSerializer
 from apps.mtm.models import Material
 from .models import MIO, MaterialBatch, MIOItem, WareHouse, MIOItemA, MaterialBatchA, MIOItemw, Pack
 from django.db import transaction
+from django.db.models import F, Sum, DecimalField
 from server.settings import get_sysconfig
 from apps.wpmw.models import Wpr
 from decimal import Decimal
@@ -97,6 +98,7 @@ class MIOListSerializer(CustomModelSerializer):
     order_number = serializers.CharField(source='order.number', read_only=True)
     pu_order_number = serializers.CharField(
         source='pu_order.number', read_only=True)
+    total_price = serializers.SerializerMethodField(label='总价格')
 
     class Meta:
         model = MIO
@@ -104,6 +106,12 @@ class MIOListSerializer(CustomModelSerializer):
         read_only_fields = EXCLUDE_FIELDS + \
             ['state', 'submit_time', 'submit_user', 'number']
 
+    def get_total_price(self, obj):
+        res = MIOItem.objects.filter(mio=obj, unit_price__isnull=False).aggregate(
+            total=Sum(F('count') * F('unit_price'),
+                      output_field=DecimalField(max_digits=18, decimal_places=4)))
+        return res['total']
+
 
 class MIOItemACreateSerializer(CustomModelSerializer):
     class Meta: