#zr 初始数据库迁移文件：创建评论表结构
# Generated by Django 4.1.7 on 2023-03-02 07:14

from django.conf import settings
from django.db import migrations, models
import django.db.models.deletion
import django.utils.timezone

#zr 数据库迁移类
class Migration(migrations.Migration):

    #zr 初始迁移
    initial = True

    #zr 依赖关系
    dependencies = [
        ('blog', '0001_initial'),
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    #zr 迁移操作
    operations = [
        #zr 创建评论表
        migrations.CreateModel(
            name='Comment',
            fields=[
                #zr 主键ID字段
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                #zr 评论正文字段
                ('body', models.TextField(max_length=300, verbose_name='正文')),
                #zr 创建时间字段
                ('created_time', models.DateTimeField(default=django.utils.timezone.now, verbose_name='创建时间')),
                #zr 最后修改时间字段
                ('last_mod_time', models.DateTimeField(default=django.utils.timezone.now, verbose_name='修改时间')),
                #zr 是否显示字段
                ('is_enable', models.BooleanField(default=True, verbose_name='是否显示')),
                #zr 文章外键关联
                ('article', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='blog.article', verbose_name='文章')),
                #zr 作者外键关联
                ('author', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL, verbose_name='作者')),
                #zr 父评论自关联
                ('parent_comment', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='comments.comment', verbose_name='上级评论')),
            ],
            #zr 模型元选项
            options={
                'verbose_name': '评论',
                'verbose_name_plural': '评论',
                'ordering': ['-id'],
                'get_latest_by': 'id',
            },
        ),
    ]