snd-escloud/target/classes/mapper/sys/ActivityFavouriteDao.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="platform.modules.sys.dao.ActivityFavouriteDao">

    <delete id="deleteById" parameterType="java.lang.String">

        DELETE FROM ac_activity_favourite WHERE id = #{id}
    </delete>

    <delete id="deleteByActivityIdAndUserId" parameterType="java.lang.String">

        DELETE FROM ac_activity_favourite WHERE activity_id = #{activityId} and user_id = #{userId}
    </delete>

    <select id="selectByActivityIdAndUserId" parameterType="java.lang.String" resultType="platform.modules.sys.entity.ActivityFavourite">
        select * from ac_activity_favourite where activity_id = #{activityId} and user_id = #{userId}
    </select>

</mapper>