PlayEdu/src/main/resources/mapper/ResourceMapper.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="xyz.playedu.api.mapper.ResourceMapper">

    <resultMap id="BaseResultMap" type="xyz.playedu.api.domain.Resource">
        <id property="id" column="id" jdbcType="INTEGER"/>
        <result property="adminId" column="admin_id" jdbcType="INTEGER"/>
        <result property="type" column="type" jdbcType="VARCHAR"/>
        <result property="name" column="name" jdbcType="VARCHAR"/>
        <result property="extension" column="extension" jdbcType="VARCHAR"/>
        <result property="size" column="size" jdbcType="BIGINT"/>
        <result property="disk" column="disk" jdbcType="VARCHAR"/>
        <result property="fileId" column="file_id" jdbcType="VARCHAR"/>
        <result property="path" column="path" jdbcType="VARCHAR"/>
        <result property="url" column="url" jdbcType="VARCHAR"/>
        <result property="createdAt" column="created_at" jdbcType="TIMESTAMP"/>
        <result property="parentId" column="parent_id" jdbcType="INTEGER"/>
        <result property="isHidden" column="is_hidden" jdbcType="TINYINT"/>
    </resultMap>

    <sql id="Base_Column_List">
        id
        ,admin_id,type,
        name,extension,size,
        disk,file_id,path,
        url,created_at,parent_id,
        is_hidden
    </sql>

    <select id="getCategoryCount" resultType="xyz.playedu.api.types.mapper.ResourceCategoryCountMapper">
        SELECT `resource_category`.`cid` as `cid`, count(*) as `total`
        FROM `resources`
                 INNER JOIN `resource_category` ON `resource_category`.`rid` = `resources`.`id`
        WHERE `resources`.`type` = #{type}
        AND `resources`.`is_hidden` = 0
        GROUP BY `resource_category`.`cid`;
    </select>

    <select id="getNunCategoryCount" resultType="java.lang.Integer">
        SELECT count(1) AS `total`
        FROM `resources`
                 LEFT JOIN `resource_category` ON `resource_category`.`rid` = `resources`.`id`
        WHERE `resources`.`type` = #{type}
          AND `resources`.`is_hidden` = 0
          AND `resource_category`.`rid` IS NULL;
    </select>

    <select id="paginate" resultType="xyz.playedu.api.domain.Resource">
        SELECT `resources`.*
        FROM `resources`
        <choose>
            <when test="categoryIds != null and categoryIds != ''">
                <choose>
                    <when test="categoryIds.indexOf('0') == 0">
                        LEFT JOIN `resource_category` ON `resource_category`.`rid` = `resources`.`id`
                        WHERE `resources`.`is_hidden` = 0
                        AND `resource_category`.`cid` IS NULL
                    </when>
                    <otherwise>
                        INNER JOIN `resource_category` ON `resource_category`.`rid` = `resources`.`id`
                        WHERE `resources`.`is_hidden` = 0
                        AND `resource_category`.`cid` IN (#{categoryIds})
                    </otherwise>
                </choose>
            </when>
            <otherwise>
                WHERE `resources`.`is_hidden` = 0
            </otherwise>
        </choose>
        <if test="name != null and name != ''">
            AND `resources`.`name` LIKE concat('%',#{name},'%')
        </if>
        <if test="disk != null and disk != ''">
            AND `resources`.`disk` = #{disk}
        </if>
        <if test="extension != null and extension != ''">
            AND `resources`.`extension` = #{extension}
        </if>
        <if test="type != null and type != ''">
            AND `resources`.`type` = #{type}
        </if>
        <if test="adminId != null and adminId != 0">
            AND `resources`.`admin_id` = #{adminId}
        </if>
        <if test="sortAlgo == 'asc'">
            <choose>
                <when test="sortField == 'size'">
                    ORDER BY `resources`.`size` ASC
                </when>
                <when test="sortField == 'created_at'">
                    ORDER BY `resources`.`size` ASC
                </when>
                <otherwise>
                    ORDER BY `resources`.`id` ASC
                </otherwise>
            </choose>
        </if>
        <if test="sortAlgo != 'asc'">
            <choose>
                <when test="sortField == 'size'">
                    ORDER BY `resources`.`size` DESC
                </when>
                <when test="sortField == 'created_at'">
                    ORDER BY `resources`.`size` DESC
                </when>
                <otherwise>
                    ORDER BY `resources`.`id` DESC
                </otherwise>
            </choose>
        </if>
        LIMIT #{pageStart}, #{pageSize};
    </select>

    <select id="paginateCount" resultType="java.lang.Long">
        SELECT count(1)
        FROM `resources`
        <choose>
            <when test="categoryIds != null and categoryIds != ''">
                <choose>
                    <when test="categoryIds.indexOf('0') == 0">
                        LEFT JOIN `resource_category` ON `resource_category`.`rid` = `resources`.`id`
                        WHERE `resources`.`is_hidden` = 0
                        AND `resource_category`.`cid` IS NULL
                    </when>
                    <otherwise>
                        INNER JOIN `resource_category` ON `resource_category`.`rid` = `resources`.`id`
                        WHERE `resources`.`is_hidden` = 0
                        AND `resource_category`.`cid` IN (#{categoryIds})
                    </otherwise>
                </choose>
            </when>
            <otherwise>
                WHERE `resources`.`is_hidden` = 0
            </otherwise>
        </choose>
        <if test="name != null and name != ''">
            AND `resources`.`name` LIKE concat('%',#{name},'%')
        </if>
        <if test="disk != null and disk != ''">
            AND `resources`.`disk` = #{disk}
        </if>
        <if test="extension != null and extension != ''">
            AND `resources`.`extension` = #{extension}
        </if>
        <if test="type != null and type != ''">
            AND `resources`.`type` = #{type}
        </if>
        <if test="adminId != null and adminId != 0">
            AND `resources`.`admin_id` = #{adminId}
        </if>
    </select>

</mapper>