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视频分类删除接口优化，存在视频不能删除

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This commit is contained in:
xiezhijun
2021-06-18 18:10:30 +08:00
parent a0b0bd5eaa
commit 81453e91ab
8 changed files with 87 additions and 25 deletions
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7
stdiet-custom/src/main/java/com/stdiet/custom/mapper/SysNutritionalVideoMapper.java
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@ -88,4 +88,11 @@ public interface SysNutritionalVideoMapper
* @return
*/
public int updateVideoPlayNum(@Param("videoId")String videoId);
/**
* 根据视频分类ID查询该分类下存在视频数量
* @param cateId
* @return
*/
public int getVideoCountByCateId(@Param("cateId")Long cateId);
}

8
stdiet-custom/src/main/java/com/stdiet/custom/mapper/SysVideoClassifyMapper.java
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@ -3,6 +3,7 @@ package com.stdiet.custom.mapper;
import java.util.List;
import com.stdiet.custom.domain.SysVideoClassify;
import com.stdiet.custom.dto.response.VideoClassifyResponse;
import org.apache.ibatis.annotations.Param;
/**
* 视频分类Mapper接口
@ -72,4 +73,11 @@ public interface SysVideoClassifyMapper
* @return
*/
public List<VideoClassifyResponse> getOneAllClassifyAndVideo(SysVideoClassify sysVideoClassify);
/**
* 根据分类ID查询分类以及分类下的子类ID
* @param id
* @return
*/
public List<Long> getVideoClassifyIdsById(@Param("id")Long id);
}

11
stdiet-custom/src/main/java/com/stdiet/custom/service/ISysVideoClassifyService.java
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@ -1,6 +1,8 @@
package com.stdiet.custom.service;
import java.util.List;
import com.stdiet.common.core.domain.AjaxResult;
import com.stdiet.custom.domain.SysVideoClassify;
import com.stdiet.custom.dto.response.VideoClassifyResponse;
@ -44,13 +46,6 @@ public interface ISysVideoClassifyService
*/
public int updateSysVideoClassify(SysVideoClassify sysVideoClassify);
/**
* 批量删除视频分类
*
* @param ids 需要删除的视频分类ID
* @return 结果
*/
public int deleteSysVideoClassifyByIds(Long[] ids);
/**
* 删除视频分类信息
@ -58,7 +53,7 @@ public interface ISysVideoClassifyService
* @param id 视频分类ID
* @return 结果
*/
public int deleteSysVideoClassifyById(Long id);
public AjaxResult deleteSysVideoClassifyById(Long id);
/**
* 获取所有类别

39
stdiet-custom/src/main/java/com/stdiet/custom/service/impl/SysVideoClassifyServiceImpl.java
View File

@ -1,6 +1,8 @@
package com.stdiet.custom.service.impl;
import java.util.List;
import com.stdiet.common.core.domain.AjaxResult;
import com.stdiet.common.utils.DateUtils;
import com.stdiet.custom.dto.response.VideoClassifyResponse;
import com.stdiet.custom.mapper.SysNutritionalVideoMapper;
@ -75,17 +77,6 @@ public class SysVideoClassifyServiceImpl implements ISysVideoClassifyService
return sysVideoClassifyMapper.updateSysVideoClassify(sysVideoClassify);
}
/**
* 批量删除视频分类
*
* @param ids 需要删除的视频分类ID
* @return 结果
*/
@Override
public int deleteSysVideoClassifyByIds(Long[] ids)
{
return sysVideoClassifyMapper.deleteSysVideoClassifyByIds(ids);
}
/**
* 删除视频分类信息
@ -94,15 +85,31 @@ public class SysVideoClassifyServiceImpl implements ISysVideoClassifyService
* @return 结果
*/
@Override
public int deleteSysVideoClassifyById(Long id)
public AjaxResult deleteSysVideoClassifyById(Long id)
{
return sysVideoClassifyMapper.deleteSysVideoClassifyById(id);
return delChildrenClassify(id);
}
private boolean delChildrenClassify(Long id){
/**
* 删除分类以及子分类，删除之前需要判断分类下是否存在视频
* @param id
* @return
*/
private AjaxResult delChildrenClassify(Long id){
//判断分类下是否存在视频，存在视频不能删除
return true;
int videoNum = sysNutritionalVideoMapper.getVideoCountByCateId(id);
if(videoNum > 0){
return AjaxResult.error("该分类下存在视频，无法直接删除");
}
//删除该分类以及全部子分类
List<Long> childrenIds = sysVideoClassifyMapper.getVideoClassifyIdsById(id);
if(childrenIds != null && childrenIds.size() > 0){
Long[] ids = new Long[childrenIds.size()];
if(sysVideoClassifyMapper.deleteSysVideoClassifyByIds(childrenIds.toArray(ids)) > 0) {
return AjaxResult.success();
}
}
return AjaxResult.error();
}
/**

10
stdiet-custom/src/main/resources/mapper/custom/SysNutritionalVideoMapper.xml
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@ -173,4 +173,14 @@
update sys_nutritional_video set play_num = play_num + 1 where video_id = #{videoId} and del_flag = 0
</update>
<!-- 根据视频分类ID查询该分类下视频总量 -->
<select id="getVideoCountByCateId" parameterType="Long" resultType="int">
select count(snv.id) from sys_nutritional_video snv where snv.del_flag = 0
and snv.cate_id in (
select id from sys_video_classify where del_flag = 0
and (id = #{cateId} or id in (select s.id from sys_video_classify s where s.parent_id = #{cateId} and s.del_flag = 0)
or id in (select ss.id from sys_video_classify ss where ss.del_flag = 0 and ss.parent_id in (select a.id from sys_video_classify a where a.parent_id = #{cateId} and a.del_flag = 0 )))
)
</select>
</mapper>

7
stdiet-custom/src/main/resources/mapper/custom/SysVideoClassifyMapper.xml
View File

@ -159,4 +159,11 @@
order by priority_level desc,id asc
</select>
<!-- 根据分类ID查询该分类ID以及分类下的子类ID -->
<select id="getVideoClassifyIdsById" parameterType="Long" resultType="Long">
select id from sys_video_classify where del_flag = 0
and (id = #{id} or id in (select s.id from sys_video_classify s where s.parent_id = #{id} and s.del_flag = 0)
or id in (select ss.id from sys_video_classify ss where ss.del_flag = 0 and ss.parent_id in (select a.id from sys_video_classify a where a.parent_id = #{id} and a.del_flag = 0 )))
</select>
</mapper>