RuoYi/src/main/resources/mybatis/system/DeptMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ruoyi.project.system.dept.mapper.DeptMapper">

	<resultMap type="Dept" id="DeptResult">
		<id     property="deptId"     column="dept_id"     />
		<result property="parentId"   column="parent_id"   />
		<result property="ancestors"  column="ancestors"   />
		<result property="deptName"   column="dept_name"   />
		<result property="orderNum"   column="order_num"   />
		<result property="leader"     column="leader"      />
		<result property="phone"      column="phone"       />
		<result property="email"      column="email"       />
		<result property="status"     column="status"      />
		<result property="parentName" column="parent_name" />
		<result property="createBy"   column="create_by"   />
		<result property="createTime" column="create_time" />
		<result property="updateBy"   column="update_by"   />
		<result property="updateTime" column="update_time" />
	</resultMap>
	
	<sql id="selectDeptVo">
        select t.dept_id, t.parent_id, t.ancestors, t.dept_name, t.order_num, t.leader, t.phone, t.email, t.status, t.create_by, t.create_time from sys_dept t
    </sql>

	<select id="selectDeptAll" resultMap="DeptResult">
		<include refid="selectDeptVo"/>
	</select>
	
	<select id="selectDeptList" parameterType="Dept" resultMap="DeptResult">
        <include refid="selectDeptVo"/>
        <where>
            <if test="parentId != null and parentId != 0">
				AND parent_id = #{parentId}
			</if>
			<if test="deptName != null and deptName != ''">
				AND dept_name like concat('%', #{deptName}, '%')
			</if>
			<if test="status != null and status != ''">
				AND status = #{status}
			</if>
		</where>
    </select>
	
	<select id="checkDeptExistUser" parameterType="Long" resultType="int">
		select count(1) from sys_user where dept_id = #{deptId} and del_flag = '0'
	</select>
	
	<select id="selectDeptCount" parameterType="Dept" resultType="int">
		select count(1) from sys_dept
		<where>
			<if test="deptId != null and deptId != 0"> and dept_id = #{deptId} </if>
			<if test="parentId != null and parentId != 0"> and parent_id = #{parentId} </if>
		</where>
	</select>
	
	<select id="checkDeptNameUnique" parameterType="String" resultMap="DeptResult">
	    <include refid="selectDeptVo"/>
		where dept_name=#{deptName}
	</select>

	<select id="selectDeptById" parameterType="Long" resultMap="DeptResult">
		select t.dept_id, t.parent_id, t.ancestors, t.dept_name, t.order_num, t.leader, t.phone, t.email, t.status,
			(select dept_name from sys_dept where dept_id = t.parent_id) parent_name
		from sys_dept t
		where dept_id = #{deptId}
	</select>
	
	<insert id="insertDept" parameterType="Dept">
 		insert into sys_dept(
 			<if test="deptId != null and deptId != 0">dept_id,</if>
 			<if test="parentId != null and parentId != 0">parent_id,</if>
 			<if test="deptName != null and deptName != ''">dept_name,</if>
 			<if test="ancestors != null and ancestors != ''">ancestors,</if>
 			<if test="orderNum != null and orderNum != ''">order_num,</if>
 			<if test="leader != null and leader != ''">leader,</if>
 			<if test="phone != null and phone != ''">phone,</if>
 			<if test="email != null and email != ''">email,</if>
 			<if test="status != null">status,</if>
 			<if test="createBy != null and createBy != ''">create_by,</if>
 			create_time
 		)values(
 			<if test="deptId != null and deptId != 0">#{deptId},</if>
 			<if test="parentId != null and parentId != 0">#{parentId},</if>
 			<if test="deptName != null and deptName != ''">#{deptName},</if>
 			<if test="ancestors != null and ancestors != ''">#{ancestors},</if>
 			<if test="orderNum != null and orderNum != ''">#{orderNum},</if>
 			<if test="leader != null and leader != ''">#{leader},</if>
 			<if test="phone != null and phone != ''">#{phone},</if>
 			<if test="email != null and email != ''">#{email},</if>
 			<if test="status != null">#{status},</if>
 			<if test="createBy != null and createBy != ''">#{createBy},</if>
 			sysdate()
 		)
	</insert>
	
	<update id="updateDept" parameterType="Dept">
 		update sys_dept
 		<set>
 			<if test="parentId != null and parentId != 0">parent_id = #{parentId},</if>
 			<if test="deptName != null and deptName != ''">dept_name = #{deptName},</if>
 			<if test="ancestors != null and ancestors != ''">ancestors = #{ancestors},</if>
 			<if test="orderNum != null and orderNum != ''">order_num = #{orderNum},</if>
 			<if test="leader != null and leader != ''">leader = #{leader},</if>
 			<if test="phone != null and phone != ''">phone = #{phone},</if>
 			<if test="email != null and email != ''">email = #{email},</if>
 			<if test="status != null and status != ''">status = #{status},</if>
 			<if test="updateBy != null and updateBy != ''">update_by = #{updateBy},</if>
 			update_time = sysdate()
 		</set>
 		where dept_id = #{deptId}
	</update>
	
	<update id="updateDeptChildren" parameterType="java.util.List">
	    update sys_dept set ancestors =
	    <foreach collection="depts" item="item" index="index"
	        separator=" " open="case dept_id" close="end">
	        when #{item.deptId} then #{item.ancestors}
	    </foreach>
	    where dept_id in
	    <foreach collection="depts" item="item" index="index"
	        separator="," open="(" close=")">
	        #{item.deptId}
	    </foreach>
	 </update>

	<delete id="deleteDeptById" parameterType="Long">
		delete from sys_dept where dept_id = #{deptId}
	</delete>

</mapper>