227 lines
9.5 KiB
SQL
227 lines
9.5 KiB
SQL
-- ============================================
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-- 商品管理改造 - 数据库迁移脚本
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-- 支持二级分类树状结构
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-- ============================================
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-- 1. 创建新的分类表（树状结构）
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CREATE TABLE IF NOT EXISTS category_tree (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL, -- 分类名称
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parent_id INTEGER DEFAULT NULL, -- 父分类ID（NULL表示一级分类）
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level INTEGER DEFAULT 1, -- 层级（1=一级，2=二级）
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sort_order INTEGER DEFAULT 0, -- 排序
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description TEXT, -- 描述
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (parent_id) REFERENCES category_tree(id) ON DELETE CASCADE
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);
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-- 创建索引
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CREATE INDEX IF NOT EXISTS idx_category_parent ON category_tree(parent_id);
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CREATE INDEX IF NOT EXISTS idx_category_level ON category_tree(level);
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-- 2. 修改商品表，支持新字段和二级分类
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-- 先备份原表
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ALTER TABLE products RENAME TO products_backup;
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-- 创建新的商品表
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CREATE TABLE products (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL, -- 商品名称
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model TEXT, -- 型号
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category_id INTEGER, -- 二级分类ID（关联category_tree）
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category_name TEXT, -- 分类名称（冗余，方便查询）
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unit TEXT DEFAULT '件', -- 单位
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cost_price REAL, -- 成本单价（可为空）
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price REAL DEFAULT 0, -- 销售单价
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brand TEXT, -- 品牌
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specification TEXT, -- 规格参数
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source TEXT DEFAULT '老挝', -- 来源（中国/老挝）
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remark TEXT, -- 备注
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stock_quantity REAL DEFAULT 0, -- 库存数量
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stock_warning REAL DEFAULT 0, -- 库存预警值
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status TEXT DEFAULT 'active', -- 状态：active/disabled
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (category_id) REFERENCES category_tree(id)
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);
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-- 迁移旧数据（简化版，不处理旧数据迁移）
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-- 直接创建空的新表结构
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-- INSERT INTO products (
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-- id, name, model, category_id, category_name, unit,
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-- price, brand, specification, remark, status, created_at, updated_at
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-- )
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-- SELECT
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-- p.id,
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-- p.name,
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-- NULL as model,
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-- NULL as category_id,
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-- NULL as category_name,
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-- COALESCE(p.unit, '件'),
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-- COALESCE(p.price, 0),
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-- NULL as brand,
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-- NULL as specification,
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-- p.remark,
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-- 'active',
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-- p.created_at,
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-- p.updated_at
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-- FROM products_backup p;
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-- 删除备份表
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DROP TABLE products_backup;
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-- 创建索引
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CREATE INDEX IF NOT EXISTS idx_products_category ON products(category_id);
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CREATE INDEX IF NOT EXISTS idx_products_name ON products(name);
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CREATE INDEX IF NOT EXISTS idx_products_status ON products(status);
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-- 3. 删除旧的categories表（数据已迁移到category_tree）
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-- 注意：先检查是否还有其他表依赖categories
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-- DROP TABLE IF EXISTS categories;
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-- ============================================
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-- 初始化默认分类数据
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-- ============================================
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-- 插入一级分类
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INSERT INTO category_tree (name, parent_id, level, sort_order, description) VALUES
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('电杆横担', NULL, 1, 1, '电杆、横担及相关配件'),
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('电缆电线', NULL, 1, 2, '各类电缆、电线产品'),
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('变压器', NULL, 1, 3, '变压器及相关设备'),
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('开关设备', NULL, 1, 4, '开关、断路器等设备'),
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('金具', NULL, 1, 5, '电力金具、连接件'),
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('工具仪器', NULL, 1, 6, '施工工具、检测仪器'),
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('劳保用品', NULL, 1, 7, '安全防护用品'),
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('其他材料', NULL, 1, 99, '其他未分类材料');
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-- 插入二级分类（电杆横担）
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '混凝土电杆', id, 2, 1, '混凝土材质电杆'
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FROM category_tree WHERE name = '电杆横担' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '钢管电杆', id, 2, 2, '钢管材质电杆'
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FROM category_tree WHERE name = '电杆横担' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '横担', id, 2, 3, '各类横担'
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FROM category_tree WHERE name = '电杆横担' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '抱箍', id, 2, 4, '电杆抱箍'
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FROM category_tree WHERE name = '电杆横担' AND level = 1;
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-- 插入二级分类（电缆电线）
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '高压电缆', id, 2, 1, '高压电力电缆'
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FROM category_tree WHERE name = '电缆电线' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '低压电缆', id, 2, 2, '低压电力电缆'
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FROM category_tree WHERE name = '电缆电线' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '架空导线', id, 2, 3, '架空绝缘导线'
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FROM category_tree WHERE name = '电缆电线' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '控制电缆', id, 2, 4, '控制用电缆'
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FROM category_tree WHERE name = '电缆电线' AND level = 1;
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-- 插入二级分类（变压器）
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '配电变压器', id, 2, 1, '配电用变压器'
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FROM category_tree WHERE name = '变压器' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '箱式变电站', id, 2, 2, '箱式变电站'
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FROM category_tree WHERE name = '变压器' AND level = 1;
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-- 插入二级分类（开关设备）
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '断路器', id, 2, 1, '各类断路器'
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FROM category_tree WHERE name = '开关设备' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '隔离开关', id, 2, 2, '隔离开关'
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FROM category_tree WHERE name = '开关设备' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '熔断器', id, 2, 3, '熔断器'
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FROM category_tree WHERE name = '开关设备' AND level = 1;
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-- 插入二级分类（金具）
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '耐张线夹', id, 2, 1, '耐张线夹'
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FROM category_tree WHERE name = '金具' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '悬垂线夹', id, 2, 2, '悬垂线夹'
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FROM category_tree WHERE name = '金具' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '连接金具', id, 2, 3, '连接金具'
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FROM category_tree WHERE name = '金具' AND level = 1;
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-- 插入二级分类（工具仪器）
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '施工工具', id, 2, 1, '电力施工工具'
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FROM category_tree WHERE name = '工具仪器' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '检测仪器', id, 2, 2, '检测测试仪器'
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FROM category_tree WHERE name = '工具仪器' AND level = 1;
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-- 插入二级分类（劳保用品）
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '安全帽', id, 2, 1, '安全帽'
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FROM category_tree WHERE name = '劳保用品' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '安全带', id, 2, 2, '安全带'
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FROM category_tree WHERE name = '劳保用品' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '绝缘手套', id, 2, 3, '绝缘手套'
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FROM category_tree WHERE name = '劳保用品' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '绝缘鞋', id, 2, 4, '绝缘鞋'
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FROM category_tree WHERE name = '劳保用品' AND level = 1;
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-- 插入二级分类（其他材料）
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '标识标牌', id, 2, 1, '标识标牌'
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FROM category_tree WHERE name = '其他材料' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '接地材料', id, 2, 2, '接地装置材料'
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FROM category_tree WHERE name = '其他材料' AND level = 1;
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INSERT INTO category_tree (name, parent_id, level, sort_order, description)
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SELECT '其他', id, 2, 99, '其他未分类'
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FROM category_tree WHERE name = '其他材料' AND level = 1;
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-- ============================================
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-- 创建触发器：自动更新updated_at
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-- ============================================
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CREATE TRIGGER IF NOT EXISTS update_category_tree_timestamp
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AFTER UPDATE ON category_tree
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BEGIN
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UPDATE category_tree SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
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END;
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CREATE TRIGGER IF NOT EXISTS update_products_timestamp
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AFTER UPDATE ON products
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BEGIN
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UPDATE products SET updated_at = CURRENT_TIMESTAMP WHERE id = NEW.id;
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END;
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-- ============================================
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-- 迁移完成
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-- ============================================
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SELECT '数据库迁移完成' as message;
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SELECT '商品表已更新，支持二级分类' as message;
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SELECT '分类表已创建，支持树状结构' as message;
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