2eb066dbec
* refactor: 表结构重构，新增段落section和图片image新表 * fix: fix android app import error * refactor: 重构文件名 * fix: 优化提示词 * fix: 消息气泡显示位置异常问题 --------- Co-authored-by: yangshilin <2157598560@qq.com>
27 lines
1.2 KiB
SQL
27 lines
1.2 KiB
SQL
-- 章节拆分为 chapter_sections：每段正文 + 配图独立存储，chapters 只保留封面图
|
||
-- 执行顺序: 1) 本文件 2) python -m scripts.migrate_chapters_to_sections
|
||
-- 执行方式: psql -U <user> -d <database> -f api/migrations/add_chapter_sections.sql
|
||
|
||
-- ========== 1. 新建 chapter_sections 表 ==========
|
||
CREATE TABLE IF NOT EXISTS chapter_sections (
|
||
id VARCHAR NOT NULL PRIMARY KEY,
|
||
chapter_id VARCHAR NOT NULL REFERENCES chapters(id) ON DELETE CASCADE,
|
||
order_index INTEGER NOT NULL,
|
||
content TEXT NOT NULL,
|
||
image JSONB,
|
||
updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
|
||
);
|
||
CREATE INDEX IF NOT EXISTS ix_chapter_sections_chapter_id ON chapter_sections(chapter_id);
|
||
CREATE INDEX IF NOT EXISTS ix_chapter_sections_order ON chapter_sections(chapter_id, order_index);
|
||
|
||
-- ========== 2. chapters 表增加 cover_image ==========
|
||
DO $$
|
||
BEGIN
|
||
IF NOT EXISTS (SELECT 1 FROM information_schema.columns WHERE table_schema = 'public' AND table_name = 'chapters' AND column_name = 'cover_image') THEN
|
||
ALTER TABLE chapters ADD COLUMN cover_image JSONB;
|
||
RAISE NOTICE '已添加 chapters.cover_image';
|
||
END IF;
|
||
END $$;
|
||
|
||
-- ========== 3. 回填与删列由脚本 scripts.migrate_chapters_to_sections 完成 ==========
|