<?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.sincere.student.mapper.MajorMapper">

    <resultMap id="MajorMap" type="com.sincere.student.model.Major">
        <id column="id" property="id"/>
        <result column="major" property="major"/>
        <result column="major_code" property="majorCode"/>

        <result column="p_id" property="pId"/>

    </resultMap>

    <select id="getList" parameterType="com.sincere.student.model.Major" resultMap="MajorMap">

        select * from university_major
         <where>
             <if test="pId != 0">
                and p_id = #{pId}
             </if>

             <if test="major != null">
                and major like #{major}

             </if>
         </where>

    </select>

    <select id="getListCount" parameterType="com.sincere.student.model.Major" resultType="java.lang.Integer">

        select count(0) from university_major

        <where>
            <if test="pId >= 0">

                and p_id = #{pId}
            </if>
            <if test="major != null">
                and major like #{major}
            </if>

            <if test="majorCode != null">
                and major_code like #{majorCode}

            </if>

        </where>

    </select>

    <insert id="create" parameterType="com.sincere.student.model.Major" >
        insert into university_major (major,major_code,p_id)
        values (#{major},#{majorCode},#{pId})

    </insert>

    <delete id="delete" parameterType="java.lang.Integer">

        delete university_major where id = #{id}
    </delete>

    <update id="update" parameterType="com.sincere.student.model.Major">
        update university_major
        <trim prefix="set" suffixOverrides=",">

            <if test="major!=null">
                major=#{major},
            </if>
            <if test="majorCode!=null">

                major_code=#{majorCode},
            </if>
        </trim>
        where id = #{id}
    </update>
</mapper>