39 lines
2.0 KiB
Python
39 lines
2.0 KiB
Python
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# Generated by Django 5.2.1 on 2025-05-23 10:58
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import django.db.models.deletion
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from django.conf import settings
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from django.db import migrations, models
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class Migration(migrations.Migration):
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initial = True
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dependencies = [
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migrations.swappable_dependency(settings.AUTH_USER_MODEL),
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]
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operations = [
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migrations.CreateModel(
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name='ChatHistory',
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fields=[
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('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
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('knowledge_base_id', models.CharField(default='b680a4fa-37be-11f0-a7cb-0242ac120002', help_text='知识库ID，用于兼容原有结构', max_length=100)),
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('conversation_id', models.CharField(db_index=True, max_length=100)),
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('title', models.CharField(blank=True, default='New chat', help_text='对话标题', max_length=100, null=True)),
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('parent_id', models.CharField(blank=True, max_length=100, null=True)),
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('role', models.CharField(choices=[('user', '用户'), ('assistant', 'AI助手'), ('system', '系统')], max_length=20)),
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('content', models.TextField()),
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('tokens', models.IntegerField(default=0, help_text='消息token数')),
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('metadata', models.JSONField(blank=True, default=dict, help_text='存储额外信息')),
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('created_at', models.DateTimeField(auto_now_add=True)),
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('is_deleted', models.BooleanField(default=False)),
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('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
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],
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options={
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'ordering': ['created_at'],
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'indexes': [models.Index(fields=['conversation_id', 'created_at'], name='chat_chathi_convers_90ca0c_idx'), models.Index(fields=['user', 'created_at'], name='chat_chathi_user_id_326d36_idx'), models.Index(fields=['conversation_id', 'is_deleted'], name='chat_chathi_convers_bcd094_idx')],
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},
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),
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]
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