From 79537cade97c884acde533927aebfc9ca460657d Mon Sep 17 00:00:00 2001
From: wxg0103 <727495428@qq.com>
Date: Thu, 10 Jul 2025 14:49:27 +0800
Subject: [PATCH] refactor: update user field in application and knowledge
 models to allow null values and set null on delete

---
 .../0006_alter_applicationfolder_user.py      | 20 +++++++++++++++++++
 apps/application/models/application.py        |  2 +-
 .../0004_alter_knowledgefolder_user.py        | 20 +++++++++++++++++++
 apps/knowledge/models/knowledge.py            |  2 +-
 4 files changed, 42 insertions(+), 2 deletions(-)
 create mode 100644 apps/application/migrations/0006_alter_applicationfolder_user.py
 create mode 100644 apps/knowledge/migrations/0004_alter_knowledgefolder_user.py

diff --git a/apps/application/migrations/0006_alter_applicationfolder_user.py b/apps/application/migrations/0006_alter_applicationfolder_user.py
new file mode 100644
index 000000000..ef87d9870
--- /dev/null
+++ b/apps/application/migrations/0006_alter_applicationfolder_user.py
@@ -0,0 +1,20 @@
+# Generated by Django 5.2.4 on 2025-07-10 06:48
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('application', '0005_chat_chat_record_count_chat_mark_sum_chat_star_num_and_more'),
+        ('users', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='applicationfolder',
+            name='user',
+            field=models.ForeignKey(blank=True, db_constraint=False, null=True, on_delete=django.db.models.deletion.SET_NULL, to='users.user'),
+        ),
+    ]
diff --git a/apps/application/models/application.py b/apps/application/models/application.py
index 67bff2b54..e83594c69 100644
--- a/apps/application/models/application.py
+++ b/apps/application/models/application.py
@@ -21,7 +21,7 @@ class ApplicationFolder(MPTTModel, AppModelMixin):
     id = models.CharField(primary_key=True, max_length=64, editable=False, verbose_name="主键id")
     name = models.CharField(max_length=64, verbose_name="文件夹名称")
     desc = models.CharField(max_length=200, null=True, blank=True, verbose_name="描述")
-    user = models.ForeignKey(User, on_delete=models.DO_NOTHING, verbose_name="用户id")
+    user = models.ForeignKey(User, on_delete=models.SET_NULL, db_constraint=False, blank=True, null=True)
     workspace_id = models.CharField(max_length=64, verbose_name="工作空间id", default="default", db_index=True)
     parent = TreeForeignKey('self', on_delete=models.DO_NOTHING, null=True, blank=True, related_name='children')
 
diff --git a/apps/knowledge/migrations/0004_alter_knowledgefolder_user.py b/apps/knowledge/migrations/0004_alter_knowledgefolder_user.py
new file mode 100644
index 000000000..a8d9259e7
--- /dev/null
+++ b/apps/knowledge/migrations/0004_alter_knowledgefolder_user.py
@@ -0,0 +1,20 @@
+# Generated by Django 5.2.4 on 2025-07-10 06:48
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('knowledge', '0003_alter_file_source_id_alter_file_source_type'),
+        ('users', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='knowledgefolder',
+            name='user',
+            field=models.ForeignKey(blank=True, db_constraint=False, null=True, on_delete=django.db.models.deletion.SET_NULL, to='users.user'),
+        ),
+    ]
diff --git a/apps/knowledge/models/knowledge.py b/apps/knowledge/models/knowledge.py
index 26d6bea74..796e81074 100644
--- a/apps/knowledge/models/knowledge.py
+++ b/apps/knowledge/models/knowledge.py
@@ -99,7 +99,7 @@ class KnowledgeFolder(MPTTModel, AppModelMixin):
     id = models.CharField(primary_key=True, max_length=64, editable=False, verbose_name="主键id")
     name = models.CharField(max_length=64, verbose_name="文件夹名称")
     desc = models.CharField(max_length=200, null=True, blank=True, verbose_name="描述")
-    user = models.ForeignKey(User, on_delete=models.DO_NOTHING, verbose_name="用户id")
+    user = models.ForeignKey(User, on_delete=models.SET_NULL, db_constraint=False, blank=True, null=True)
     workspace_id = models.CharField(max_length=64, verbose_name="工作空间id", default="default", db_index=True)
     parent = TreeForeignKey('self', on_delete=models.DO_NOTHING, null=True, blank=True, related_name='children')