modify scripts

scrapy_proj/my_sqlalchemy/readme.txt

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+# 从数据库生成模型类
+sqlacodegen sqlite:////root/sharedata/sqlite/shared.db > models/shared.py
+sqlacodegen sqlite:////root/sharedata/sqlite/scrapy.db > models/scrapy.py
+
+# 初始化
+alembic init migrations/shared_comm
+alembic init migrations/scrapy 
+alembic init migrations/testdb
+
+# 同步修改到数据库（读取 models/shared.py ）
+./scripts/sync_shared_comm.sh 
+
+./scripts/reset_testdb.sh
+
+### 对视图支持不好，主要是视图的字段没有类型，所以在导入导出时会出错，慎用！
+
+
+------------------------- 清理掉无法处理的字段 --------------------
+PRAGMA foreign_keys = OFF;  -- 禁用外键检查
+
+-- 检查字段是否已删除
+PRAGMA table_info(javdb_series);  -- 应看不到parent_id字段
+
+-- 验证数据完整性
+SELECT COUNT(*), MIN(id), MAX(id) FROM javdb_series;  -- 数量应与操作前一致
+
+-- 5. 处理 javdb_series 表
+CREATE TABLE "javdb_series_new" (
+  `id` INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+  `name` VARCHAR(255) NOT NULL,
+  `href` VARCHAR(255) UNIQUE,
+  `created_at` TEXT DEFAULT (datetime('now', 'localtime')),
+  `updated_at` TEXT DEFAULT (datetime('now', 'localtime')),
+  `details` TEXT,
+  from_list INTEGER DEFAULT (0),
+  from_movie_list INTEGER DEFAULT (0)
+);
+
+INSERT INTO javdb_series_new (id, name, href, created_at, updated_at, details, from_list, from_movie_list)
+SELECT id, name, href, created_at, updated_at, details, from_list, from_movie_list 
+FROM javdb_series;
+
+DROP TABLE javdb_series;
+ALTER TABLE javdb_series_new RENAME TO javdb_series;
+
+
+
+-- 检查字段是否已删除
+PRAGMA table_info(javdb_series);  -- 应看不到parent_id字段
+
+-- 验证数据完整性
+SELECT COUNT(*), MIN(id), MAX(id) FROM javdb_series;  -- 数量应与操作前一致
+
+
+PRAGMA foreign_keys = ON;   -- 恢复外键检查