-- 更改表
ALTER TABLE `sys_user`
	DROP COLUMN `company_id`;
-- 新建表
CREATE TABLE `company_department` (
	`id` INT(11) NOT NULL AUTO_INCREMENT,
	`name` VARCHAR(32) NOT NULL COMMENT '部门名称' COLLATE 'utf8_general_ci',
	`company_id` INT(11) NOT NULL COMMENT '单位id',
	`parent_id` INT(11) NULL DEFAULT NULL COMMENT '父级id',
	PRIMARY KEY (`id`),
	INDEX `FK_company_department_company` (`company_id`),
	INDEX `FK_company_department_company_department` (`parent_id`),
	CONSTRAINT `FK_company_department_company` FOREIGN KEY (`company_id`) REFERENCES `company` (`id`) ON DELETE CASCADE,
	CONSTRAINT `FK_company_department_company_department` FOREIGN KEY (`parent_id`) REFERENCES `company_department` (`id`) ON DELETE SET NULL
)
COMMENT='单位部门信息'
COLLATE='utf8_general_ci'
ENGINE=InnoDB
;
CREATE TABLE `company_position` (
	`id` INT(11) NOT NULL AUTO_INCREMENT,
	`name` VARCHAR(32) NOT NULL COMMENT '职位名称' COLLATE 'utf8_general_ci',
	`company_id` INT(11) NOT NULL COMMENT '单位id',
	PRIMARY KEY (`id`),
	INDEX `FK_company_position_company` (`company_id`),
	CONSTRAINT `FK_company_position_company` FOREIGN KEY (`company_id`) REFERENCES `company` (`id`) ON DELETE CASCADE
)
COMMENT='单位职位信息'
COLLATE='utf8_general_ci'
ENGINE=InnoDB
;
CREATE TABLE `company_user` (
	`company_id` INT(11) NOT NULL COMMENT '公司id',
	`user_id` BIGINT(20) NOT NULL COMMENT '用户id',
	`admin` TINYINT(1) NOT NULL DEFAULT '0' COMMENT '公司管理员',
	UNIQUE INDEX `user_id` (`user_id`),
	INDEX `FK_company_user_company` (`company_id`),
	CONSTRAINT `FK_company_user_company` FOREIGN KEY (`company_id`) REFERENCES `company` (`id`) ON DELETE CASCADE,
	CONSTRAINT `FK_company_user_sys_user` FOREIGN KEY (`user_id`) REFERENCES `sys_user` (`id`) ON DELETE CASCADE
)
COMMENT='单位用户关系'
COLLATE='utf8_general_ci'
ENGINE=InnoDB
;
CREATE TABLE `department_user` (
	`id` BIGINT(20) NOT NULL AUTO_INCREMENT,
	`user_id` BIGINT(20) NOT NULL COMMENT '用户id',
	`department_id` INT(11) NOT NULL COMMENT '部门id',
	`position_id` INT(11) NULL DEFAULT NULL COMMENT '职位id',
	`manager` TINYINT(1) NOT NULL DEFAULT '0' COMMENT '部门管理员',
	`create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
	`update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
	PRIMARY KEY (`id`),
	INDEX `FK_department_user_company_position` (`position_id`),
	INDEX `FK_department_user_sys_user` (`user_id`),
	INDEX `FK_department_user_company_department` (`department_id`),
	CONSTRAINT `FK_department_user_company_department` FOREIGN KEY (`department_id`) REFERENCES `company_department` (`id`) ON DELETE CASCADE,
	CONSTRAINT `FK_department_user_company_position` FOREIGN KEY (`position_id`) REFERENCES `company_position` (`id`) ON DELETE SET NULL,
	CONSTRAINT `FK_department_user_sys_user` FOREIGN KEY (`user_id`) REFERENCES `sys_user` (`id`) ON DELETE CASCADE
)
COMMENT='用户、部门关联表'
COLLATE='utf8_general_ci'
ENGINE=InnoDB
;
CREATE TABLE `department_lesson` (
	`lesson_id` BIGINT(20) NOT NULL COMMENT '课程id',
	`department_id` INT(11) NOT NULL COMMENT '班级id',
	INDEX `lesson_id` (`lesson_id`),
	INDEX `department_lesson_ibfk_1` (`department_id`),
	CONSTRAINT `department_lesson_ibfk_1` FOREIGN KEY (`department_id`) REFERENCES `company_department` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE,
	CONSTRAINT `department_lesson_ibfk_2` FOREIGN KEY (`lesson_id`) REFERENCES `ls_lesson` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE
)
COMMENT='班级课程表'
COLLATE='utf8_general_ci'
ENGINE=InnoDB
;
CREATE TABLE `department_exam` (
	`exam_id` BIGINT(20) NOT NULL,
	`department_id` INT(11) NOT NULL,
	INDEX `exam_id` (`exam_id`),
	INDEX `department_exam_ibfk_2` (`department_id`),
	CONSTRAINT `department_exam_ibfk_1` FOREIGN KEY (`exam_id`) REFERENCES `exam_definition` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE,
	CONSTRAINT `department_exam_ibfk_2` FOREIGN KEY (`department_id`) REFERENCES `company_department` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE
)
COMMENT='学生的试卷和班级关系'
COLLATE='utf8_general_ci'
ENGINE=InnoDB
;

-- 删除表

DROP TABLE `user_company_rel`;