material 增加file字段

hb_server/apps/mtm/migrations/0051_material_file.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.9 on 2022-04-27 02:36
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('system', '0004_auto_20220318_1705'),
+        ('mtm', '0050_auto_20220419_1109'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='material',
+            name='file',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='system.file', verbose_name='文件'),
+        ),
+    ]

hb_server/apps/mtm/models.py

@@ -43,6 +43,7 @@ class Material(CommonAModel):
     count = models.PositiveIntegerField('物料库存总数', default=0)
     count_safe = models.PositiveIntegerField('安全库存总数', null=True, blank=True)
     piece_count = models.PositiveSmallIntegerField('单片玻璃数量', null=True, blank=True)
+    file = models.ForeignKey(File, verbose_name='文件', on_delete=models.SET_NULL, null=True, blank=True)
     class Meta:
         verbose_name = '物料表'
         verbose_name_plural = verbose_name

hb_server/apps/mtm/serializers.py

@@ -8,12 +8,14 @@ from apps.system.serializers import FileSimpleSerializer, OrganizationSimpleSeri
 
 
 class MaterialSerializer(DynamicFieldsSerializerMixin, serializers.ModelSerializer):
+    file_ = FileSimpleSerializer(source='file', read_only=True)
     class Meta:
         model = Material
         fields = '__all__'
 
 class MaterialDetailSerializer(serializers.ModelSerializer):
     processes_ = serializers.SerializerMethodField()
+    file_ = FileSimpleSerializer(source='file', read_only=True)
     class Meta:
         model = Material
         fields = '__all__'

hb_server/apps/mtm/views.py

@@ -19,7 +19,7 @@ class MaterialViewSet(PageOrNot, CreateUpdateModelAMixin, ModelViewSet):
     """
     perms_map = {'get': '*', 'post': 'material_create',
                  'put': 'material_update', 'delete': 'material_delete'}
-    queryset = Material.objects.all()
+    queryset = Material.objects.select_related('file').all()
     serializer_class = MaterialSerializer
     search_fields = ['name', 'number']
     filterset_class = MaterialFilterSet