diff --git a/hb_server/apps/em/migrations/0003_equipment_type.py b/hb_server/apps/em/migrations/0003_equipment_type.py
new file mode 100644
index 0000000..5615a9b
--- /dev/null
+++ b/hb_server/apps/em/migrations/0003_equipment_type.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.6 on 2021-08-31 06:41
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('em', '0002_alter_equipment_model'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='equipment',
+            name='type',
+            field=models.IntegerField(choices=[(1, '生产设备'), (2, '检验工具')], default=1, verbose_name='类型'),
+        ),
+    ]
diff --git a/hb_server/apps/mtm/migrations/0007_auto_20210831_1441.py b/hb_server/apps/mtm/migrations/0007_auto_20210831_1441.py
new file mode 100644
index 0000000..31b351d
--- /dev/null
+++ b/hb_server/apps/mtm/migrations/0007_auto_20210831_1441.py
@@ -0,0 +1,47 @@
+# Generated by Django 3.2.6 on 2021-08-31 06:41
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('system', '0003_auto_20210812_0909'),
+        ('em', '0003_equipment_type'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('mtm', '0006_auto_20210830_1331'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='process',
+            name='workshop',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='system.organization', verbose_name='生产车间'),
+        ),
+        migrations.AddField(
+            model_name='step',
+            name='equipments',
+            field=models.ManyToManyField(to='em.Equipment', verbose_name='使用设备'),
+        ),
+        migrations.CreateModel(
+            name='UsedStep',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('create_time', models.DateTimeField(default=django.utils.timezone.now, help_text='创建时间', verbose_name='创建时间')),
+                ('update_time', models.DateTimeField(auto_now=True, help_text='修改时间', verbose_name='修改时间')),
+                ('is_deleted', models.BooleanField(default=False, help_text='删除标记', verbose_name='删除标记')),
+                ('create_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='usedstep_create_by', to=settings.AUTH_USER_MODEL, verbose_name='创建人')),
+                ('process', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='mtm.process', verbose_name='关联工序')),
+                ('product', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='mtm.material', verbose_name='关联产品')),
+                ('step', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='usedsteps', to='mtm.step', verbose_name='子工序')),
+                ('update_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='usedstep_update_by', to=settings.AUTH_USER_MODEL, verbose_name='最后编辑人')),
+            ],
+            options={
+                'verbose_name': '产品生产子工序',
+                'verbose_name_plural': '产品生产子工序',
+            },
+        ),
+    ]
diff --git a/hb_server/utils/response.py b/hb_server/utils/response.py
index 1b11f4b..4657b5e 100644
--- a/hb_server/utils/response.py
+++ b/hb_server/utils/response.py
@@ -50,12 +50,13 @@ class FitJSONRenderer(JSONRenderer):
         response_body.code = response.status_code
         if response_body.code >= 400:  # 响应异常
             response_body.data = data  # data里是详细异常信息
+            prefix = ""
             if isinstance(data, dict):
-                key = list(data.keys())[0]
-                data = key + data[key]
-            elif isinstance(data, list):
+                prefix = list(data.keys())[0]
+                data = data[prefix]
+            if isinstance(data, list):
                 data = data[0]
-            response_body.msg = data # 取一部分放入msg,方便前端alert
+            response_body.msg = prefix + ":" + data # 取一部分放入msg,方便前端alert
         else:
             response_body.data = data
         renderer_context.get("response").status_code = 200  # 统一成200响应,用code区分