-- =============================================================
-- CMS 解决方案（特色服务）相关表：解决方案 / 解决方案分类
--   yz_cms_solution           解决方案
--   yz_cms_solution_category  解决方案分类
-- 说明：建表可重复执行；末尾的历史库补列重复执行报
--       "Duplicate column name" 属正常，跳过即可。
-- 运行：mysql -h<host> -P<port> -u<user> -p <db> < create_cms_solution.sql
-- =============================================================

CREATE TABLE IF NOT EXISTS `yz_cms_solution` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `tid` bigint unsigned NOT NULL DEFAULT 0,
  `title` varchar(100) NOT NULL DEFAULT '',
  `thumb` varchar(500) NOT NULL DEFAULT '',
  `desc` varchar(500) NOT NULL DEFAULT '',
  `content` mediumtext,
  `url` varchar(500) NOT NULL DEFAULT '',
  `sort` int NOT NULL DEFAULT 0,
  `status` tinyint NOT NULL DEFAULT 1,
  `create_time` datetime NOT NULL,
  `update_time` datetime DEFAULT NULL,
  `delete_time` datetime DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `idx_tid_status` (`tid`,`status`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

CREATE TABLE IF NOT EXISTS `yz_cms_solution_category` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `tid` bigint unsigned NOT NULL DEFAULT 0,
  `title` varchar(100) NOT NULL DEFAULT '',
  `pid` bigint unsigned NOT NULL DEFAULT 0,
  `desc` varchar(500) NOT NULL DEFAULT '',
  `sort` int NOT NULL DEFAULT 0,
  `status` tinyint NOT NULL DEFAULT 1,
  `create_time` datetime NOT NULL,
  `update_time` datetime DEFAULT NULL,
  `delete_time` datetime DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `idx_tid_pid` (`tid`,`pid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

-- 历史库补齐在线内容字段（表已存在且缺列时才执行 ALTER，可重复执行不报错）
SET @tbl := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_cms_solution');
SET @col := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_cms_solution' AND COLUMN_NAME = 'content');
SET @ddl := IF(@tbl > 0 AND @col = 0, 'ALTER TABLE `yz_cms_solution` ADD COLUMN `content` mediumtext', 'DO 0');
PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;