用户端是小程序，后台管理系统是PC端的CMS系统

news2024/11/24 14:47:22

1. 数据库表设计

1.1 课程轮播图表

CREATE TABLE `course_banners` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '轮播图主键',
  `image_url` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '轮播图图片链接',
  `title` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '标题',
  `description` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '描述',
  `link_url` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '跳转链接',
  `order_index` int(11) NOT NULL DEFAULT '0' COMMENT '排序，倒序',
  `is_active` tinyint(1) NOT NULL DEFAULT '1' COMMENT '1显示，0隐藏',
  `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='课程轮播图';

1.2 课程分类表

CREATE TABLE `course_categories` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键',
  `category_name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '课程分类名称',
  `description` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '课程分类描述',
  `created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '记录创建时间戳',
  `updated_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '记录最后更新时间戳',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='课程分类表';

1.3 课程表

CREATE TABLE `course_courses` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '课程主键',
  `title` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '课程标题',
  `description` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '课程描述',
  `cover_image_url` varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '课程封面图片链接',
  `category_id` int(11) unsigned DEFAULT NULL COMMENT '课程分类主键',
  `created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '记录创建的时间戳',
  `updated_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '记录最后更新的时间戳',
  PRIMARY KEY (`id`),
  KEY `fk_category_id` (`category_id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='课程表';

1.4 课程章节表

CREATE TABLE `course_chapters` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键',
  `title` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '课程章节标题',
  `description` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci COMMENT '课程章节内容',
  `course_id` int(11) unsigned NOT NULL COMMENT '课程外键',
  `orderd` int(11) NOT NULL DEFAULT '0' COMMENT '排序，倒序',
  `created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `updated_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '更新时间',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=14 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='课程章节表';