Student-Attendance-Management/target/classes/mapper/CourseApplicationMapper.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.lxq.model.dao.CourseApplicationDAO">

    <select id="getAllCourseApplication" resultType="com.lxq.model.object.CourseApplication">
        select * from course_application
        <where>
            <if test="id !=null">
                and id = #{id}
            </if>
            <if test="time !=null">
                and time = #{time}
            </if>
            <if test="teacherId !=null">
                and teacherId = #{teacherId}
            </if>
            <if test="userId !=null">
                and userId = #{userId}
            </if>
            <if test="curriculumId !=null">
                and curriculumId = #{curriculumId}
            </if>
            <if test="state !=null">
                and state = #{state}
            </if>

            <if test="content !=null">
                and content like CONCAT('%', #{content}, '%')
            </if>
            <if test="remarks !=null">
                and remarks like CONCAT('%', #{remarks}, '%')
            </if>
        </where>

    </select>
    <select id="getCourseApplication" resultType="com.lxq.model.object.CourseApplication">
        select * from course_application
        <where>
            <if test="id !=null">
                and id = #{id}
            </if>
            <if test="time !=null">
                and time = #{time}
            </if>
            <if test="teacherId !=null">
                and teacherId = #{teacherId}
            </if>
            <if test="userId !=null">
                and userId = #{userId}
            </if>
            <if test="curriculumId !=null">
                and curriculumId = #{curriculumId}
            </if>
            <if test="state !=null">
                and state = #{state}
            </if>

            <if test="content !=null">
                and content like CONCAT('%', #{content}, '%')
            </if>
            <if test="remarks !=null">
                and remarks like CONCAT('%', #{remarks}, '%')
            </if>
        </where>
    </select>

    <select id="getCourseApplicationbyPrimary" resultType="com.lxq.model.object.CourseApplication">
        select * from course_application
        <where>
            <if test="teacherId !=null">
                and teacherId = #{teacherId}
            </if>
            <if test="userId !=null">
                and userId = #{userId}
            </if>
            <if test="curriculumId !=null">
                and curriculumId = #{curriculumId}
            </if>
        </where>
    </select>


    <insert id="addCourseApplication"  parameterType="com.lxq.model.object.CourseApplication">
        insert into course_application(teacherId,userId,curriculumId,content,state,remarks,time)
        values(#{teacherId},#{userId},#{curriculumId},#{content},#{state},#{remarks},#{time})
    </insert>

    <delete id="delCourseApplication" parameterType="com.lxq.model.object.CourseApplication">
        delete from course_application
        where id = #{id}
    </delete>

    <update id="updateCourseApplication"  parameterType="com.lxq.model.object.CourseApplication">
        update course_application
        <set>
            <if test="teacherId !=null">
                teacherId = #{teacherId},
            </if>
            <if test="userId !=null">
                userId = #{userId},
            </if>
            <if test="curriculumId !=null">
                curriculumId = #{curriculumId},
            </if>
            <if test="content !=null">
                content = #{content},
            </if>
            <if test="state !=null">
                state = #{state},
            </if>
            <if test="remarks !=null">
                remarks = #{remarks},
            </if>
            <if test="time !=null">
                time = #{time},
            </if>
        </set>
        where id = #{id}
    </update>


</mapper>