收藏增加数量和图片

ruoyi-system/src/main/java/com/ruoyi/system/mapper/UserCollectMapper.java

@@ -4,6 +4,7 @@ import com.ruoyi.common.core.domain.entity.UserCollect;
 import org.apache.ibatis.annotations.Param;
 
 import java.util.List;
+import java.util.Map;
 
 /**
  * 用户收藏音乐Mapper接口
@@ -62,4 +63,14 @@ public interface UserCollectMapper
     public int deleteUserCollectByIds(Long[] ids);
 
     UserCollect selectUserCollectAndUserId(@Param("userId") Long userId,@Param("musicId") String musicId);
+
+
+    /**
+     * 根据collectIds 查询出歌单数量
+     * @param collectIdList
+     * @return
+     */
+    List<Map<String, Object>> selectNumUserCollectIdList(List<Long> collectIdList);
+
+    int updateImgByCollectId(UserCollect userCollect);
 }

ruoyi-system/src/main/java/com/ruoyi/system/service/impl/MusicCollectServiceImpl.java

@@ -1,7 +1,11 @@
 package com.ruoyi.system.service.impl;
 
 import com.ruoyi.common.core.domain.entity.MusicCollect;
+import com.ruoyi.common.core.domain.entity.MusicInfo;
+import com.ruoyi.common.core.domain.entity.UserCollect;
 import com.ruoyi.system.mapper.MusicCollectMapper;
+import com.ruoyi.system.mapper.MusicInfoMapper;
+import com.ruoyi.system.mapper.UserCollectMapper;
 import com.ruoyi.system.service.IMusicCollectService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -19,6 +23,10 @@ public class MusicCollectServiceImpl implements IMusicCollectService
 {
     @Autowired
     private MusicCollectMapper musicCollectMapper;
+    @Autowired
+    private UserCollectMapper userCollectMapper;
+    @Autowired
+    private MusicInfoMapper musicInfoMapper;
 
     /**
      * 查询【请填写功能名称】
@@ -53,6 +61,12 @@ public class MusicCollectServiceImpl implements IMusicCollectService
     @Override
     public int insertMusicCollect(MusicCollect musicCollect)
     {
+        // 查询出音乐图片
+        MusicInfo musicInfo = musicInfoMapper.selectByMusicId(musicCollect.getMusicId().toString());
+        UserCollect userCollect = new UserCollect();
+        userCollect.setImg(musicInfo.getImgAddr());
+        userCollect.setCollectId(musicCollect.getCollectId());
+        userCollectMapper.updateImgByCollectId(userCollect);
         return musicCollectMapper.insertMusicCollect(musicCollect);
     }
 

ruoyi-system/src/main/java/com/ruoyi/system/service/impl/UserCollectServiceImpl.java

@@ -12,6 +12,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
 
 /**
  * 用户收藏音乐Service业务层处理
@@ -48,7 +50,25 @@ public class UserCollectServiceImpl implements IUserCollectService
     @Override
     public List<UserCollect> selectUserCollectList(UserCollect userCollect)
     {
-        return userCollectMapper.selectUserCollectList(userCollect);
+        List<UserCollect> list = userCollectMapper.selectUserCollectList(userCollect);
+        //list 获取歌单音乐数量 和 获取歌单某张图片
+        Long collectId = userCollect.getCollectId();
+
+        List<Long> collectIdList = list.stream().map(UserCollect::getCollectId).collect(Collectors.toList());
+
+        if (!collectIdList.isEmpty()) {
+            List<Map<String, Object>> collectNums = userCollectMapper.selectNumUserCollectIdList(collectIdList);
+            
+            // 将查询到的歌单音乐数量设置到对应的UserCollect对象中
+            list.forEach(item -> {
+                Map<String, Object> collectNum = collectNums.stream()
+                    .filter(map -> (item.getCollectId()).equals(map.get("collectId")))
+                    .findFirst()
+                    .orElse(null);
+                item.setMusicNum(collectNum != null ? (Long) collectNum.get("num") : 0L);
+            });
+        }
+        return list;
     }
 
     /**

ruoyi-system/src/main/resources/mapper/system/UserCollectMapper.xml

@@ -12,10 +12,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="createTime"    column="create_time"    />
         <result property="updateTime"    column="update_time"    />
         <result property="collectType"    column="collect_type"    />
+        <result property="img" column="img" />
     </resultMap>
 
     <sql id="selectUserCollectVo">
-        select id, user_id, collect_id, collect_name, create_time, update_time, collect_type from user_collect
+        select id, user_id, collect_id, collect_name, create_time, update_time, collect_type,img from user_collect
     </sql>
 
     <select id="selectUserCollectList" parameterType="UserCollect" resultMap="UserCollectResult">
@@ -43,6 +44,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="createTime != null">create_time,</if>
             <if test="updateTime != null">update_time,</if>
             <if test="collectType != null">collect_type,</if>
+            <if test="img != null">img,</if>
          </trim>
         <trim prefix="values (" suffix=")" suffixOverrides=",">
             <if test="id != null">#{id},</if>
@@ -52,6 +54,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="createTime != null">#{createTime},</if>
             <if test="updateTime != null">#{updateTime},</if>
             <if test="collectType != null">#{collectType},</if>
+            <if test="img != null">#{img},</if>
          </trim>
     </insert>
 
@@ -82,4 +85,25 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <select id="selectUserCollectAndUserId" resultMap="UserCollectResult">
         SELECT uc.* FROM music_collect mc LEFT JOIN user_collect uc on uc.collect_id=mc.collect_id WHERE mc.music_id=#{musicId} and uc.user_id=#{userId}
     </select>
+
+    <select id="selectNumUserCollectIdList" resultType="java.util.Map">
+        SELECT 
+            uc.collect_id as "collectId",
+            COUNT(mc.music_id) as "num"
+        FROM 
+            user_collect uc
+        LEFT JOIN 
+            music_collect mc ON uc.collect_id = mc.collect_id
+        WHERE 
+            uc.collect_id IN
+        <foreach item="collectId" collection="list" open="(" separator="," close=")">
+            #{collectId}
+        </foreach>
+        GROUP BY 
+            uc.collect_id
+    </select>
+
+    <update id="updateImgByCollectId">
+        update user_collect set img=#{img} where collectId = #{collectId}
+    </update>
 </mapper>