教育项目--课时内容【33】

Dear 丶 2023-10-05 02:29 115阅读 0赞

#### 课程模块 ####

*  新增课时
 *  更新课时
 *  根据ID获取课时
 *  根据ID删除可是
 *   *  实体类PO类
     *  返回对象封装
     *  service
     *  serviceIMpl
     *  controller

## 新增课时 ##

## 更新课时 ##

## 根据ID获取课时 ##

## 根据ID删除可是 ##

--------------------

### 实体类PO类 ###

package com.djr.eduservice.entity;
 
 import com.baomidou.mybatisplus.annotation.IdType;
 import java.util.Date;
 import com.baomidou.mybatisplus.annotation.TableId;
 import java.io.Serializable;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.Data;
 import lombok.EqualsAndHashCode;
 import lombok.experimental.Accessors;
 
 /**
 * 
 * 课程视频
 * 
 *
 * @author taotao
 * @since 2021-02-01
 */
 @Data
 @EqualsAndHashCode(callSuper = false)
 @Accessors(chain = true)
 @ApiModel(value="EduVideo对象", description="课程视频")
 public class EduVideo implements Serializable {
 
 
 private static final long serialVersionUID = 1L;
 
 @ApiModelProperty(value = "视频ID")
 @TableId(value = "id", type = IdType.ID_WORKER_STR)
 private String id;
 
 @ApiModelProperty(value = "课程ID")
 private String courseId;
 
 @ApiModelProperty(value = "章节ID")
 private String chapterId;
 
 @ApiModelProperty(value = "节点名称")
 private String title;
 
 @ApiModelProperty(value = "云端视频资源")
 private String videoSourceId;
 
 @ApiModelProperty(value = "原始文件名称")
 private String videoOriginalName;
 
 @ApiModelProperty(value = "排序字段")
 private Integer sort;
 
 @ApiModelProperty(value = "播放次数")
 private Long playCount;
 
 @ApiModelProperty(value = "是否可以试听：0收费 1免费")
 private Boolean isFree;
 
 @ApiModelProperty(value = "视频时长（秒）")
 private Float duration;
 
 @ApiModelProperty(value = "Empty未上传 Transcoding转码中 Normal正常")
 private String status;
 
 @ApiModelProperty(value = "视频源文件大小（字节）")
 private Long size;
 
 @ApiModelProperty(value = "乐观锁")
 private Long version;
 
 @ApiModelProperty(value = "创建时间")
 private Date gmtCreate;
 
 @ApiModelProperty(value = "更新时间")
 private Date gmtModified;
 
 
 }

### 返回对象封装 ###

package com.djr.eduservice.entity;
    
    import io.swagger.annotations.ApiModel;
    import io.swagger.annotations.ApiModelProperty;
    import lombok.Data;
    
    /**
     * @Program: 封装课时返回对象
     * @Description
     * @Author: 涛涛 * ^ *
     * @Create: 2021-02-03 17:13
     **/
    @ApiModel(value = "课时基本信息", description = "编辑课时基本信息的表单对象")
    @Data
    public class VideoInfoForm {
        
    
    
        @ApiModelProperty(value = "视频ID")
        private String id;
    
        @ApiModelProperty(value = "节点名称")
        private String title;
    
        @ApiModelProperty(value = "课程ID")
        private String courseId;
    
        @ApiModelProperty(value = "章节ID")
        private String chapterId;
    
        @ApiModelProperty(value = "视频资源")
        private String videoSourceId;
    
        @ApiModelProperty(value = "显示排序")
        private Integer sort;
    
        @ApiModelProperty(value = "是否可以试听：0默认 1免费")
        private Boolean free;
    }

### service ###

package com.djr.eduservice.service;
 
 import com.djr.eduservice.entity.EduVideo;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.djr.eduservice.entity.VideoInfoForm;
 
 /**
 * 
 * 课程视频 服务类
 * 
 *
 * @author taotao
 * @since 2021-02-01
 */
 public interface EduVideoService extends IService<EduVideo> {
 
 /**
 * 根据ID获取小节信息
 * @param id
 * @return
 */
 boolean getCountByChapterId(String id);
 
 /**
 * 课时管理
 * @param videoInfoForm
 */
 void saveVideoInfo(VideoInfoForm videoInfoForm);
 
 /**
 * 修改课时信息
 * @param videoInfoForm
 */
 void updateVideoInfoById(VideoInfoForm videoInfoForm);
 
 /**
 * 根据ID获取课时信息
 * @param id
 * @return
 */
 VideoInfoForm getVideoInfoFormById(String id);
 
 /**
 * 根据ID删除课时信息
 * @param id
 * @return
 */
 boolean removeVideoById(String id);
 }

### serviceIMpl ###

package com.djr.eduservice.service.impl;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.djr.commonutils.ResultCode;
 import com.djr.eduservice.entity.EduVideo;
 import com.djr.eduservice.entity.VideoInfoForm;
 import com.djr.eduservice.mapper.EduVideoMapper;
 import com.djr.eduservice.service.EduVideoService;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.djr.servicebase.exceptionhandler.MyselfException;
 import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
 
 /**
 * 
 * 课程视频 服务实现类
 * 
 *
 * @author taotao
 * @since 2021-02-01
 */
 @Service
 public class EduVideoServiceImpl extends ServiceImpl<EduVideoMapper, EduVideo> implements EduVideoService {
 
 /**
 * 根据ID获取小节信息
 *
 * @param chapterId
 * @return
 */
 @Override
 public boolean getCountByChapterId(String chapterId) {
 
 QueryWrapper<EduVideo> queryWrapper = new QueryWrapper<>();
 queryWrapper.eq("chapter_id", chapterId);
 Integer count = baseMapper.selectCount(queryWrapper);
 return null != count && count > 0;
 }
 
 /**
 * 课时管理
 *
 * @param videoInfoForm
 */
 @Override
 public void saveVideoInfo(VideoInfoForm videoInfoForm) {
 
 EduVideo video = new EduVideo();
 BeanUtils.copyProperties(videoInfoForm, video);
 boolean result = this.save(video);
 
 if (!result) {
 
 throw new MyselfException(50005, "课时信息保存失败");
 }
 }
 
 /**
 * 修改课时信息
 *
 * @param videoInfoForm
 */
 @Override
 public void updateVideoInfoById(VideoInfoForm videoInfoForm) {
 
 //保存课时基本信息
 EduVideo eduVideo = new EduVideo();
 BeanUtils.copyProperties(videoInfoForm, eduVideo);
 boolean result = this.updateById(eduVideo);
 if (!result) {
 
 throw new MyselfException(50005, "课时信息保存失败");
 }
 }
 
 /**
 * 根据ID获取课时信息
 *
 * @param id
 * @return
 */
 @Override
 public VideoInfoForm getVideoInfoFormById(String id) {
 
 //从video表中取数据
 EduVideo video = this.getById(id);
 if (video == null) {
 
 throw new MyselfException(50006, "数据不存在");
 }
 
 //创建videoInfoForm对象
 VideoInfoForm videoInfoForm = new VideoInfoForm();
 BeanUtils.copyProperties(video, videoInfoForm);
 return videoInfoForm;
 }
 
 /**
 * 根据ID删除课时信息
 *
 * @param id
 * @return
 */
 @Override
 public boolean removeVideoById(String id) {
 
 //删除视频资源 TODO
 
 Integer result = baseMapper.deleteById(id);
 return null != result && result > 0;
 }
 
 }

### controller ###

package com.djr.eduservice.controller;
    
    import com.djr.commonutils.R;
    import com.djr.eduservice.entity.VideoInfoForm;
    import com.djr.eduservice.service.EduVideoService;
    import io.swagger.annotations.Api;
    import io.swagger.annotations.ApiOperation;
    import io.swagger.annotations.ApiParam;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.*;
    
    /**
     * @Program: science_source_education
     * @Description
     * @Author: 涛涛 * ^ *
     * @Create: 2021-02-03 17:15
     **/
    @Api(description="课时管理")
    @CrossOrigin
    @RestController
    @RequestMapping("/eduservice/video")
    public class VideoAdminController {
        
    
        @Autowired
        private EduVideoService eduVideoService;
    
        /**
         * 新增课时
         * @param videoInfoForm
         * @return
         */
        @ApiOperation(value = "新增课时")
        @PostMapping("/save-video-info")
        public R save(
                @ApiParam(name = "videoForm", value = "课时对象", required = true)
                @RequestBody VideoInfoForm videoInfoForm){
        
    
            eduVideoService.saveVideoInfo(videoInfoForm);
            return R.ok();
        }
    
        /**
         * 根据ID获取单个的课时信息
         * @param id
         * @return
         */
        @ApiOperation(value = "根据ID查询课时")
        @GetMapping("video-info/{id}")
        public R getVideInfoById(
                @ApiParam(name = "id", value = "课时ID", required = true)
                @PathVariable String id){
        
    
            VideoInfoForm videoInfoForm = eduVideoService.getVideoInfoFormById(id);
            return R.ok().data("item", videoInfoForm);
        }
    
        /**
         * 修改课时信息
         * @param videoInfoForm
         * @param id
         * @return
         */
        @ApiOperation(value = "更新课时")
        @PutMapping("update-video-info/{id}")
        public R updateCourseInfoById(
                @ApiParam(name = "VideoInfoForm", value = "课时基本信息", required = true)
                @RequestBody VideoInfoForm videoInfoForm,
    
                @ApiParam(name = "id", value = "课时ID", required = true)
                @PathVariable String id){
        
    
            eduVideoService.updateVideoInfoById(videoInfoForm);
            return R.ok();
        }
    
        /**
         * 根据ID删除课时
         * @param id
         * @return
         */
        @ApiOperation(value = "根据ID删除课时")
        @DeleteMapping("{id}")
        public R removeById(
                @ApiParam(name = "id", value = "课时ID", required = true)
                @PathVariable String id){
        
    
            boolean result = eduVideoService.removeVideoById(id);
            if(result){
        
                return R.ok();
            }else{
        
                return R.error().message("删除失败");
            }
        }
    
    
    }