feat: add Tag and DocumentTag models with migrations

Author: liuruibin

apps/knowledge/migrations/0003_tag_documenttag.py

@@ -0,0 +1,54 @@
+# Generated by Django 5.2.7 on 2025-10-11 07:38
+
+import django.db.models.deletion
+import uuid_utils.compat
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('knowledge', '0002_alter_file_source_type'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Tag',
+            fields=[
+                ('create_time', models.DateTimeField(auto_now_add=True, db_index=True, verbose_name='创建时间')),
+                ('update_time', models.DateTimeField(auto_now=True, db_index=True, verbose_name='修改时间')),
+                ('id', models.UUIDField(default=uuid_utils.compat.uuid7, editable=False, primary_key=True, serialize=False, verbose_name='主键id')),
+                ('key', models.CharField(db_index=True, max_length=64, verbose_name='标签键')),
+                ('value', models.CharField(db_index=True, max_length=128, verbose_name='标签值')),
+                ('knowledge', models.ForeignKey(db_constraint=False, on_delete=django.db.models.deletion.DO_NOTHING, to='knowledge.knowledge', verbose_name='知识库')),
+            ],
+            options={
+                'db_table': 'tag',
+            },
+        ),
+        migrations.CreateModel(
+            name='DocumentTag',
+            fields=[
+                ('create_time', models.DateTimeField(auto_now_add=True, db_index=True, verbose_name='创建时间')),
+                ('update_time', models.DateTimeField(auto_now=True, db_index=True, verbose_name='修改时间')),
+                ('id', models.UUIDField(default=uuid_utils.compat.uuid7, editable=False, primary_key=True, serialize=False, verbose_name='主键id')),
+                ('document', models.ForeignKey(db_constraint=False, on_delete=django.db.models.deletion.DO_NOTHING, to='knowledge.document', verbose_name='文档')),
+                ('tag', models.ForeignKey(db_constraint=False, on_delete=django.db.models.deletion.DO_NOTHING, to='knowledge.tag', verbose_name='标签')),
+            ],
+            options={
+                'db_table': 'document_tag',
+            },
+        ),
+        migrations.AddIndex(
+            model_name='tag',
+            index=models.Index(fields=['knowledge', 'key'], name='tag_knowled_cba590_idx'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='tag',
+            unique_together={('knowledge', 'key', 'value')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='documenttag',
+            unique_together={('document', 'tag')},
+        ),
+    ]

apps/knowledge/models/knowledge.py

@@ -162,6 +162,35 @@ class Document(AppModelMixin):
     class Meta:
         db_table = "document"
 
+class Tag(AppModelMixin):
+    """
+    标签表 - 存储标签的key-value定义
+    """
+    id = models.UUIDField(primary_key=True, max_length=128, default=uuid.uuid7, editable=False, verbose_name="主键id")
+    knowledge = models.ForeignKey(Knowledge, on_delete=models.DO_NOTHING, verbose_name="知识库", db_constraint=False)
+    key = models.CharField(max_length=64, verbose_name="标签键", db_index=True)
+    value = models.CharField(max_length=128, verbose_name="标签值", db_index=True)
+
+    class Meta:
+        db_table = "tag"
+        unique_together = [['knowledge', 'key', 'value']]  # 在同一知识库内key-value组合唯一
+        indexes = [
+            models.Index(fields=['knowledge', 'key']),
+        ]
+
+
+class DocumentTag(AppModelMixin):
+    """
+    文档标签关联表
+    """
+    id = models.UUIDField(primary_key=True, max_length=128, default=uuid.uuid7, editable=False, verbose_name="主键id")
+    document = models.ForeignKey(Document, on_delete=models.DO_NOTHING, verbose_name="文档", db_constraint=False)
+    tag = models.ForeignKey(Tag, on_delete=models.DO_NOTHING, verbose_name="标签", db_constraint=False)
+
+    class Meta:
+        db_table = "document_tag"
+        unique_together = [['document', 'tag']]  # 文档和标签的组合唯一
+
 
 class Paragraph(AppModelMixin):
     """

apps/system_manage/migrations/0003_alter_systemsetting_type.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.7 on 2025-10-11 07:38
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('system_manage', '0002_refresh_collation_reindex'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='systemsetting',
+            name='type',
+            field=models.IntegerField(choices=[(0, '邮箱'), (1, '私钥秘钥'), (2, '日志清理时间')], default=0, primary_key=True, serialize=False, verbose_name='设置类型'),
+        ),
+    ]