# Generated by Django 5.2.12 on 2026-08-01 16:31

import django.db.models.deletion
from django.db import migrations, models


class Migration(migrations.Migration):

    dependencies = [
        ('learn', '0004_add_chapter_read'),
    ]

    operations = [
        migrations.CreateModel(
            name='CourseMaterial',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('title', models.CharField(max_length=200, verbose_name='资料名称')),
                ('file', models.FileField(upload_to='learn/materials/%Y/%m/', verbose_name='文件')),
                ('file_type', models.CharField(choices=[('pdf', 'PDF'), ('code', '代码'), ('doc', '文档'), ('zip', '压缩包'), ('other', '其他')], default='other', max_length=20, verbose_name='文件类型')),
                ('file_size', models.PositiveIntegerField(default=0, verbose_name='文件大小（字节）')),
                ('download_count', models.PositiveIntegerField(default=0, verbose_name='下载次数')),
                ('sort_order', models.IntegerField(default=0, verbose_name='排序')),
                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='创建时间')),
                ('chapter', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='materials', to='learn.chapter', verbose_name='章节')),
            ],
            options={
                'verbose_name': '课程资料',
                'verbose_name_plural': '课程资料',
                'ordering': ['sort_order'],
            },
        ),
    ]