feat: add application migrations

[shaohuzhang1]

feat: add application migrations

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[shaohuzhang1]

Code Review

This migration seems mostly correct and well-structured, with a few areas that could be optimized or improved:

1. Use of uuid_utils.compat.uuid7

• Issue: Using uuid_utils.compat.uuid7 instead of standard uuid.uuid4 is generally preferred in production environments for better performance when generating UUIDs.
• Recommendation: Replace all instances of uuid_utils.compat.uuid7 with uuid.uuid4.

2. Add Indexes

   • Suggestion: Consider adding indexes only for fields that will be frequently queried together (e.g., application_id, client_id) rather than for individual columns.

3. Field Descriptions

   • Improvement: Ensure that field descriptions are concise but descriptive enough to understand their purpose without excessive detail.

Here's an updated version with these changes suggested:

@@ -0,0 +1,59 @@
+# Generated by Django 5.2 on 2025-06-06 14:56
+
+import django.db.models.deletion
+import uuid
+from django.contrib.postgres.fields import ArrayField
+from django.db import migrations, models


class Migration(migrations.Migration):

    dependencies = [
        ('application', '0002_chat_chatrecord_workflowversion_and_more'),
    ]

    operations = [
        migrations.AddField(
            model_name='applicationaccesstoken',
            name='show_exec',
            field=models.BooleanField(default=False),
            verbose_name='是否显示执行详情',
        ),
        migrations.AddField(
            model_name='chat',
            name='client_type',
            field=models.CharField(
                choices=[
                    ('ANONYMOUS_USER', '匿名用户'),
                    ('CHAT_USER', '对话用户'),
                    ('SYSTEM_API_KEY', '系统API_KEY'),
                    ('APPLICATION_API_KEY', '应用API_KEY')
                ],
                default='ANONYMOUS_USER',
                max_length=64,
                verbose_name='客户端类型'
            ),
        ),
        migrations.AlterField(
            model_name='chat',
            name='id',
            field=models.UUIDField(
                default=uuid.uuid4,          # Change from uuid_utils.compat.uuid7
                auto_created=True,          # Add if using django >= 3.2
                edit=False,
                primary_key=True,
                serialization=False,
                unique=True,
                verbose_name='主键id'
            ),
        ),
        migrations.AlterField(
            model_name='chat',
            name='is_deleted',
            field=models.BooleanField(default=False),
            verbose_name='逻辑删除标志',
        ),
        migrations.CreateModel(
            name='ApplicationChatClientStats',
            fields=[
                ('create_time', models.DateTimeField(auto_now_add=True)),
                ('update_time', models.DateTimeField(auto_now=True)),
                ('id', models.UUIDField(default=uuid.uuid4)),       # Change from uuid_utils.compat.uuid7
                ('client_id', models.UUIDField(default=uuid.uuid4)),
                ('client_type', models.CharField(choices=(
                    ('ANONYMOUS_USER', '匿名用户'),
                    ('CHAT_USER', '对话用户'),
                    ('SYSTEM_API_KEY', '系统API_KEY'),
                    ('APPLICATION_API_KEY', '应用API_KEY')
                ), default='ANONYMOUS_USER', max_length=64)),
                ('access_num', models.IntegerField()),
                ('intraday_access_num', models.IntegerField()),
                (
                    "application",
                    models.ForeignKey(
                        related_name="chat_clients",
                        on_delete=django.db.models.deletion.CASCADE,
                        to="application.Application"
                    )
                ),
            ],
            options={
                'db_table': 'application_chat_client_stats',
            }
        ),
        migrations.DeleteModel(
            name='ApplicationPublicAccessClient',
        ),
        migrations.AddIndex(
            model_name='application_chat_client_stats',
            index=models.Index(fields=['application', 'client_id'], name='application_applica_f89647_idx'),
        ),
    ]

By making these adjustments, you improve the readability, maintainability, and potential performance of your database schema.

[shaohuzhang1]

Here are some observations and suggestions:

1. Default Value for created_at: Ensure that the created_at field has a default value if you don't want to save it explicitly with each record creation.

2. Validation for UUIDs: Make sure the length of the UUID fields (e.g., application, client_id) matches their specifications unless they are generated randomly.

3. Indexing Considerations: If there's high read frequency on certain fields, consider adding indexes to improve performance (index=True). For example, indexing the client_id might be beneficial for querying stats related to specific clients.

4. Code Consistency: In both model classes, ensure consistency in naming conventions and comments.

5. Security: It’s good practice to include null=False for all ForeignKey fields if they represent mandatory relationships unless otherwise specified. This will help raise errors when such fields have null values in production environments.

Overall, your initial code looks clean and functional, but these points offer additional improvements to ensure robustness and efficiency.