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学习记录init

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wenyu441069198 5 months ago
parent e2564cfef7
commit 98019c8438
7 changed files with 449 additions and 460 deletions
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  1. 7
      pom.xml
  2. 173
      src/main/java/com/teaching/backend/controller/records/LearningRecordsController.java
  3. 31
      src/main/java/com/teaching/backend/mapper/records/LearningRecordsMapper.java
  4. 192
      src/main/java/com/teaching/backend/model/entity/records/LearningRecords.java
  5. 104
      src/main/java/com/teaching/backend/model/vo/records/LearningRecordsVo.java
  6. 364
      src/main/java/com/teaching/backend/service/impl/records/LearningRecordsServiceImpl.java
  7. 38
      src/main/java/com/teaching/backend/service/records/LearningRecordsService.java

7
pom.xml
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@ -155,13 +155,6 @@
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!-- &lt;!&ndash; pagehelper &ndash;&gt;-->
<!-- <dependency>-->
<!-- <groupId>com.github.pagehelper</groupId>-->
<!-- <artifactId>pagehelper</artifactId>-->
<!-- <version>3.4.2</version>-->
<!-- </dependency>-->
</dependencies>

173
src/main/java/com/teaching/backend/controller/records/LearningRecordsController.java
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@ -1,89 +1,84 @@
//package com.teaching.backend.controller.records;
//
//
//import com.github.pagehelper.PageHelper;
//import com.github.pagehelper.PageInfo;
//import com.teaching.backend.common.BaseResponse;
//import com.teaching.backend.common.ResultUtils;
//
//import com.teaching.backend.model.entity.records.LearningRecords;
//import com.teaching.backend.model.vo.records.LearningRecordsVo;
//import com.teaching.backend.service.impl.records.LearningRecordsServiceImpl;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.ui.Model;
//import org.springframework.web.bind.annotation.*;
//
//import java.util.ArrayList;
//import java.util.List;
//
//@RestController
//@RequestMapping("/learningrecords")
//public class LearningRecordsController {
//
// @Autowired
// private LearningRecordsServiceImpl learningRecordsService;
//
//
// /**
// * 获取当前登录用户的学习记录
// * @param m
// * @param pagenum
// * @param pagesize
// * @return
// */
// @GetMapping("/getall")
// public BaseResponse<PageInfo> getAll(Model m,
// @RequestParam(value = "pagenum", defaultValue = "1") int pagenum,
// @RequestParam(value = "pagesize", defaultValue = "15") int pagesize,
// @RequestParam String userId){
// PageHelper.startPage(pagenum,pagesize);
// List<LearningRecordsVo> cs= learningRecordsService.getAll(userId);
// List<LearningRecordsVo> pageCs = new ArrayList<>();
// //当前页面
// for(int i = (pagenum - 1) * pagesize; i < cs.size() && i < (pagenum) * pagesize; i++){
// pageCs.add(cs.get(i));
// }
// PageInfo<LearningRecordsVo> pageInfo = new PageInfo<>(pageCs);
// System.out.println("当前页面:"+pagenum);
// System.out.println("当前页面大小:"+pagesize);
// System.out.println("当前页面内容:"+pageCs);
//// PageInfo<LearningRecordsVo> pageInfo = new PageInfo<>(cs);
//// pageInfo.setPageSize(pagesize);//设置当前页面大小
//// pageInfo.setPageNum(pagenum);//设置当前页码
//// pageInfo.setSize(pagesize);//不知道是啥，---------
//// pageInfo.setTotal(cs.size());//设置总条数
// long total = pageInfo.getTotal(); // 总记录数
//// pageInfo.setPages((int)(Math.ceil((double) total / pagesize)));//设置总页数
// return ResultUtils.success(pageInfo);
// }
//
// @GetMapping("/all")
// public BaseResponse<List<LearningRecords>> All(){
// System.out.println("学习记录:"+learningRecordsService.list());
// return ResultUtils.success(learningRecordsService.list());
// }
//
// //资源类型: 1,课程学习记录,2,知识点学习记录,3课程资源学习记录
// /**
// * 添加课程记录
// * @param learningRecords
// * @return
// */
// @PostMapping("/saverecords")
// public BaseResponse<String> saveRecords(@RequestBody LearningRecords learningRecords){
// System.out.println(learningRecords);
// return ResultUtils.success(learningRecordsService.saveRecords(learningRecords));
// }
//
// /**
// * 根据id删除
// * @param ids
// * @return
// */
// @DeleteMapping("/delete")
// public BaseResponse<String> deleteRecords(@RequestParam List<Long> ids){
//
// return ResultUtils.success(learningRecordsService.delete(ids));
// }
//
//}
package com.teaching.backend.controller.records;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.teaching.backend.common.BaseResponse;
import com.teaching.backend.common.ResultUtils;
import com.teaching.backend.model.entity.records.LearningRecords;
import com.teaching.backend.model.vo.records.LearningRecordsVo;
import com.teaching.backend.service.impl.records.LearningRecordsServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;
import java.util.ArrayList;
import java.util.List;
@RestController
@RequestMapping("/learningrecords")
public class LearningRecordsController {
@Autowired
private LearningRecordsServiceImpl learningRecordsService;
/**
* 获取当前登录用户的学习记录
* @param pagenum
* @param pagesize
* @return
*/
@GetMapping("/getall")
public BaseResponse<Page> getAll(@RequestParam(value = "pagenum", defaultValue = "1") int pagenum,
@RequestParam(value = "pagesize", defaultValue = "15") int pagesize,
@RequestParam String userId){
List<LearningRecordsVo> cs= learningRecordsService.getAll(userId);
List<LearningRecordsVo> pageCs = new ArrayList<>();
//当前页面
for(int i = (pagenum - 1) * pagesize; i < cs.size() && i < (pagenum) * pagesize; i++){
pageCs.add(cs.get(i));
}
long total = cs.size(); // 总记录数
Page<LearningRecordsVo> pageInfo = new Page<>(pagenum,pagesize,total);
pageInfo.setRecords(pageCs);
System.out.println("总记录数"+pageInfo.getTotal());
System.out.println("当前页面:"+pagenum);
System.out.println("当前页面大小:"+pagesize);
System.out.println("当前页面内容:"+pageCs);
System.out.println("页面数:"+pageInfo.getPages());
pageInfo.setPages((int)(Math.ceil((double) total / pagesize)));//设置总页数
System.out.println(pageInfo.getPages());
return ResultUtils.success(pageInfo);
}
@GetMapping("/all")
public BaseResponse<List<LearningRecords>> All(){
System.out.println("学习记录:"+learningRecordsService.list());
return ResultUtils.success(learningRecordsService.list());
}
//资源类型: 1,课程学习记录,2,知识点学习记录,3课程资源学习记录
/**
* 添加课程记录
* @param learningRecords
* @return
*/
@PostMapping("/saverecords")
public BaseResponse<String> saveRecords(@RequestBody LearningRecords learningRecords){
System.out.println(learningRecords);
return ResultUtils.success(learningRecordsService.saveRecords(learningRecords));
}
/**
* 根据id删除
* @param ids
* @return
*/
@DeleteMapping("/delete")
public BaseResponse<String> deleteRecords(@RequestParam List<Long> ids){
return ResultUtils.success(learningRecordsService.delete(ids));
}
}

31
src/main/java/com/teaching/backend/mapper/records/LearningRecordsMapper.java
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@ -1,16 +1,17 @@
//package com.teaching.backend.mapper.records;
package com.teaching.backend.mapper.records;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.teaching.backend.model.entity.records.LearningRecords;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
@Mapper
public interface LearningRecordsMapper extends BaseMapper<LearningRecords> {
IPage<LearningRecords> selectPageList(Page<LearningRecords> page, @Param("model")LearningRecords model);
}
//
//import com.baomidou.mybatisplus.core.mapper.BaseMapper;
//import com.baomidou.mybatisplus.core.metadata.IPage;
//import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
//
//import com.teaching.backend.model.entity.records.LearningRecords;
//import org.apache.ibatis.annotations.Mapper;
//import org.apache.ibatis.annotations.Param;
//
//@Mapper
//public interface LearningRecordsMapper extends BaseMapper<LearningRecords> {
// IPage<LearningRecords> selectPageList(Page<LearningRecords> page, @Param("model")LearningRecords model);
//
//}
////

192
src/main/java/com/teaching/backend/model/entity/records/LearningRecords.java
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@ -1,96 +1,96 @@
//package com.teaching.backend.model.entity.records;
//
//
//import com.baomidou.mybatisplus.annotation.IdType;
//import com.baomidou.mybatisplus.annotation.TableId;
//import com.baomidou.mybatisplus.annotation.TableName;
//import lombok.Data;
//import lombok.EqualsAndHashCode;
//import lombok.experimental.Accessors;
//
//import java.time.LocalDateTime;
//
//
//@Data
//@EqualsAndHashCode(callSuper = false)
//@Accessors(chain = true)
//@TableName("learning_records")
//public class LearningRecords {
// private static final long serialVersionUID = 1L;
//
// /**
// * 内部编号
// */
// @TableId(value = "id", type = IdType.ASSIGN_ID)
// private String id;
//
// /**
// * 用户id
// */
// private String userId;
//
// /**
// * 课程id
// */
// private String coursesId;
// /**
// * 章节id
// */
// private String chapterId;
// /**
// * 知识点id
// */
// private String knowledgePointId;
// /**
// * 资源id
// */
// private String resourceId;
// /**
// * 访问时间
// */
// private LocalDateTime accessTime;
//
// /**
// * 学习方式:打开; 1,打开过,2未打开
// */
// private String learningMethod1;
// /**
// * 学习方式:下载; 1下载过, 2未下载
// */
// private String learningMethod2;
// /**
// *视频学习时长
// */
// private String videoDuration;
//
// /**
// *是否完成观看：1，已完成，0未完成
// */
// private String isCompleted;
//
// /**
// * 记录封面图片
// */
// private String content;
// /**
// * 资源地址
// */
// private String address;
//
// /**
// * 是否存在: 1存在;0不存在;
// */
// private String status;
// /**
// * 类型, 如:1,课程; 2,章节; 3,知识点; 4,学习资源
// */
// private String type;
// /**
// * 父节点
// */
// private String parentNode;
//
//
//
//
//}
package com.teaching.backend.model.entity.records;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.experimental.Accessors;
import java.time.LocalDateTime;
@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@TableName("learning_records")
public class LearningRecords {
private static final long serialVersionUID = 1L;
/**
* 内部编号
*/
@TableId(value = "id", type = IdType.ASSIGN_ID)
private String id;
/**
* 用户id
*/
private String userId;
/**
* 课程id
*/
private String coursesId;
/**
* 章节id
*/
private String chapterId;
/**
* 知识点id
*/
private String knowledgePointId;
/**
* 资源id
*/
private String resourceId;
/**
* 访问时间
*/
private LocalDateTime accessTime;
/**
* 学习方式:打开; 1,打开过,2未打开
*/
private String learningMethod1;
/**
* 学习方式:下载; 1下载过, 2未下载
*/
private String learningMethod2;
/**
*视频学习时长
*/
private String videoDuration;
/**
*是否完成观看：1，已完成，0未完成
*/
private String isCompleted;
/**
* 记录封面图片
*/
private String content;
/**
* 资源地址
*/
private String address;
/**
* 是否存在: 1存在;0不存在;
*/
private String status;
/**
* 类型, 如:1,课程; 2,章节; 3,知识点; 4,学习资源
*/
private String type;
/**
* 父节点
*/
private String parentNode;
}

104
src/main/java/com/teaching/backend/model/vo/records/LearningRecordsVo.java
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@ -1,59 +1,59 @@
//package com.teaching.backend.model.vo.records;
//
//import lombok.Data;
//import lombok.EqualsAndHashCode;
//import lombok.experimental.Accessors;
//
//@Data
//@EqualsAndHashCode(callSuper = false)
//@Accessors(chain = true)
//public class LearningRecordsVo {
//// private static final long serialVersionUID = 1L;
//
package com.teaching.backend.model.vo.records;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.experimental.Accessors;
@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
public class LearningRecordsVo {
// private static final long serialVersionUID = 1L;
/**
* 内部编号
*/
private String id;
/**
* 课程名称
*/
private String coursesName;
// /**
// * 内部编号
// * 资源类型
// */
// private String id;
//
// private String type;
/**
* 封面
*/
private String content;
/**
* 资源观看人数
*/
private Long number;
/**
* 上次观看时间
*/
private String time;
/**
* 地址
*/
private String address;
// /**
// * 课程名称
// * 创建日期
// */
// private String coursesName;
//
//// /**
//// * 资源类型
//// */
//// private String type;
// private LocalDateTime createTime;
//
// /**
// * 封面
// * 更新日期
// */
// private String content;
//
// /**
// * 资源观看人数
// */
// private Long number;
//
//
// /**
// * 上次观看时间
// */
// private String time;
// /**
// * 地址
// */
// private String address;
//// /**
//// * 创建日期
//// */
//// private LocalDateTime createTime;
////
//// /**
//// * 更新日期
//// */
//// private LocalDateTime updateTime;
//
//
//
//}
// private LocalDateTime updateTime;
}

364
src/main/java/com/teaching/backend/service/impl/records/LearningRecordsServiceImpl.java
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@ -1,185 +1,185 @@
//package com.teaching.backend.service.impl.records;
//
//import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
//import com.baomidou.mybatisplus.core.metadata.IPage;
//import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
//import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
//
//import com.teaching.backend.mapper.records.LearningRecordsMapper;
//
//import com.teaching.backend.model.entity.records.LearningRecords;
//import com.teaching.backend.model.vo.records.LearningRecordsVo;
//import com.teaching.backend.service.impl.chapter.ChapterServiceImpl;
//import com.teaching.backend.service.impl.courses.CoursesServiceImpl;
//import com.teaching.backend.service.impl.know.IknowServiceimpl;
//import com.teaching.backend.service.records.LearningRecordsService;
//import org.springframework.beans.BeanUtils;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.stereotype.Service;
//
//import java.text.SimpleDateFormat;
//import java.time.LocalDateTime;
//import java.time.ZoneId;
//import java.util.ArrayList;
//import java.util.Date;
//import java.util.List;
//
//@Service
//public class LearningRecordsServiceImpl extends ServiceImpl<LearningRecordsMapper, LearningRecords> implements LearningRecordsService {
//
// @Autowired
// private CoursesServiceImpl coursesService;
package com.teaching.backend.service.impl.records;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.teaching.backend.mapper.records.LearningRecordsMapper;
import com.teaching.backend.model.entity.records.LearningRecords;
import com.teaching.backend.model.vo.records.LearningRecordsVo;
import com.teaching.backend.service.impl.chapter.ChapterServiceImpl;
import com.teaching.backend.service.impl.courses.CoursesServiceImpl;
import com.teaching.backend.service.impl.know.IknowServiceimpl;
import com.teaching.backend.service.records.LearningRecordsService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
@Service
public class LearningRecordsServiceImpl extends ServiceImpl<LearningRecordsMapper, LearningRecords> implements LearningRecordsService {
@Autowired
private CoursesServiceImpl coursesService;
@Autowired
private LearningRecordsMapper learningRecordsMapper;
// @Autowired
// private LearningRecordsMapper learningRecordsMapper;
//// @Autowired
//// private LearningResourceServiceImpl learningResourceService;
// @Autowired
// private IknowServiceimpl knowledgePointService;
// @Autowired
// private ChapterServiceImpl chapterService;
//
// @Override
// public IPage<LearningRecords> selectPageList(Page<LearningRecords> page, LearningRecords model) {
// return learningRecordsMapper.selectPageList(page,model);
// }
//
// @Override
// public String delete(List<Long> ids) {
// LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
// lambdaQueryWrapper.in(LearningRecords::getId, ids);
// List<LearningRecords> list = this.list(lambdaQueryWrapper);
// //把即将要删除的记录状态调成0
// for (LearningRecords learningRecords : list) {
// learningRecords.setStatus("0");
// }
// this.updateBatchById(list);
//// System.out.println(this.updateBatchById(list));
//// this.remove(lambdaQueryWrapper);
// return "删除成功";
// }
//
// @Override
// public List<LearningRecordsVo> getAll(String userId){
// //格式化时间
// //格式化时间
// String strDateFormat = "yyyy-MM-dd HH:mm:ss";
// SimpleDateFormat sdf = new SimpleDateFormat(strDateFormat);
//
// List<LearningRecordsVo> list = new ArrayList<>();
// //将学习记录实体转成学习记录Vo实体
// LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper1 = new LambdaQueryWrapper<>();
// lambdaQueryWrapper1
// .orderByDesc(LearningRecords::getAccessTime)
// .eq(LearningRecords::getUserId, userId)
// .eq(LearningRecords::getStatus, "1");
// System.out.println(this.list(lambdaQueryWrapper1));
// //如果为空-------------------?????
// for (LearningRecords learningRecords : this.list(lambdaQueryWrapper1)) {
// //查找该用户的学习记录
//// if (learningRecords.getUserId().equals(userId) && learningRecords.getStatus().equals("1")){
// LearningRecordsVo learningRecordsVo = new LearningRecordsVo();//好像可以拿出去-----------??
// BeanUtils.copyProperties(learningRecords,learningRecordsVo);//从多传到少(缺少人数,和资源名称,时间需要转格式)
// //添加时间
// //LocalDateTime转Date
// Date date = Date.from(learningRecords.getAccessTime().atZone(ZoneId.systemDefault()).toInstant());
// learningRecordsVo.setTime(sdf.format(date));
// LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
// lambdaQueryWrapper.eq(LearningRecords::getCoursesId, learningRecords.getCoursesId());
//// System.out.println(learningRecords.getResourceId());
//// System.out.println("1");
//
// //添加课程名称
// switch (learningRecords.getType()) {
// case "4": //如果是资源学习
// learningRecordsVo.setCoursesName("学习资源");//设置名称 --------------------------------------------待完善
//
// break;
// case "3": //如果是知识点学习记录
// learningRecordsVo.setCoursesName(knowledgePointService.getById(learningRecords.getCoursesId()).getName());
//
// break;
// case "2": //如果是章节学习记录
// learningRecordsVo.setCoursesName(chapterService.getById(learningRecords.getCoursesId()).getName());
//
// break;
// case "1": //如果是课程学习记录
// learningRecordsVo.setCoursesName(coursesService.getById(learningRecords.getCoursesId()).getName());
// break;
// }
// //添加观看人数
// //统计记录表里有多少人查看过这门资源
// long count = this.count(lambdaQueryWrapper);
// System.out.println(count);
// learningRecordsVo.setNumber(count);
// //把整合后该用户的学习记录添加到List里
// list.add(learningRecordsVo);
//// }
// }
// System.out.println(list);
// return list;
// }
//
// /**
// * 根据用户id和学习资源id来判断记录是否存在
// * @param learningRecords
// * @return
// */
// @Override
// public String saveRecords(LearningRecords learningRecords) {
// String userId = learningRecords.getUserId();
// String coursesId = learningRecords.getCoursesId();
// System.out.println("学习记录:"+learningRecords);
// //查找该用户是否观看过该学习资源
// LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
// lambdaQueryWrapper
// .eq(LearningRecords::getUserId, userId)
// .eq(LearningRecords::getCoursesId, coursesId)
// .eq(LearningRecords::getType, learningRecords.getType());
// long count = this.count(lambdaQueryWrapper);
// System.out.println("数据库："+count);
// learningRecords.setStatus("1");//将该记录的状态设置为1
// //更新观看时间
// learningRecords.setAccessTime(LocalDateTime.now());
// //设置默认封面
// if (learningRecords.getContent() == null || learningRecords.getContent().equals("")){
// learningRecords.setContent("https://teaching-edu123.oss-cn-beijing.aliyuncs.com/Borovets_ZH-CN5914681811_UHD.jpg");
// }
//// //添加记录封面
//// switch (learningRecords.getType()) {
//// case "4": //如果是资源学习
//// learningRecords.setContent(learningResourceService.getById(learningRecords.getCoursesId()).getContent());//设置封面
//// break;
//// case "3": //如果是知识点学习记录
//// learningRecords.setContent(knowledgePointService.getById(learningRecords.getCoursesId()).getContent());//设置封面
////
//// break;
//// case "2": //如果是章节学习记录
//// learningRecords.setContent(chapterService.getById(learningRecords.getCoursesId()).getContent());//设置封面
////
//// break;
//// case "1": //如果是课程学习记录
//// learningRecords.setContent(coursesService.getById(learningRecords.getCoursesId()).getImg());//设置封面
//// break;
//// }
// if (count == 0){//如果没有就新增并记录学习方式是打开还是下载
// //根据传上来的type设置
//// learningRecords.setType(learningRecords.getType());
// this.save(learningRecords);
// return "添加成功";
// }else {//有就修改记录,更新学习方式
// LearningRecords one = this.getOne(lambdaQueryWrapper);
// System.out.println(one);
// learningRecords.setId(one.getId());//找到该条记录的id并赋值给本次观看记录
// if ( one.getLearningMethod1() != null && one.getLearningMethod1().equals("1")){
// learningRecords.setLearningMethod1(one.getLearningMethod1());
// private LearningResourceServiceImpl learningResourceService;
@Autowired
private IknowServiceimpl knowledgePointService;
@Autowired
private ChapterServiceImpl chapterService;
@Override
public IPage<LearningRecords> selectPageList(Page<LearningRecords> page, LearningRecords model) {
return learningRecordsMapper.selectPageList(page,model);
}
@Override
public String delete(List<Long> ids) {
LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
lambdaQueryWrapper.in(LearningRecords::getId, ids);
List<LearningRecords> list = this.list(lambdaQueryWrapper);
//把即将要删除的记录状态调成0
for (LearningRecords learningRecords : list) {
learningRecords.setStatus("0");
}
this.updateBatchById(list);
// System.out.println(this.updateBatchById(list));
// this.remove(lambdaQueryWrapper);
return "删除成功";
}
@Override
public List<LearningRecordsVo> getAll(String userId){
//格式化时间
//格式化时间
String strDateFormat = "yyyy-MM-dd HH:mm:ss";
SimpleDateFormat sdf = new SimpleDateFormat(strDateFormat);
List<LearningRecordsVo> list = new ArrayList<>();
//将学习记录实体转成学习记录Vo实体
LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper1 = new LambdaQueryWrapper<>();
lambdaQueryWrapper1
.orderByDesc(LearningRecords::getAccessTime)
.eq(LearningRecords::getUserId, userId)
.eq(LearningRecords::getStatus, "1");
System.out.println(this.list(lambdaQueryWrapper1));
//如果为空-------------------?????
for (LearningRecords learningRecords : this.list(lambdaQueryWrapper1)) {
//查找该用户的学习记录
// if (learningRecords.getUserId().equals(userId) && learningRecords.getStatus().equals("1")){
LearningRecordsVo learningRecordsVo = new LearningRecordsVo();//好像可以拿出去-----------??
BeanUtils.copyProperties(learningRecords,learningRecordsVo);//从多传到少(缺少人数,和资源名称,时间需要转格式)
//添加时间
//LocalDateTime转Date
Date date = Date.from(learningRecords.getAccessTime().atZone(ZoneId.systemDefault()).toInstant());
learningRecordsVo.setTime(sdf.format(date));
LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
lambdaQueryWrapper.eq(LearningRecords::getCoursesId, learningRecords.getCoursesId());
// System.out.println(learningRecords.getResourceId());
// System.out.println("1");
//添加课程名称
switch (learningRecords.getType()) {
case "4": //如果是资源学习
learningRecordsVo.setCoursesName("学习资源");//设置名称 --------------------------------------------待完善
break;
case "3": //如果是知识点学习记录
learningRecordsVo.setCoursesName(knowledgePointService.getById(learningRecords.getCoursesId()).getName());
break;
case "2": //如果是章节学习记录
learningRecordsVo.setCoursesName(chapterService.getById(learningRecords.getCoursesId()).getName());
break;
case "1": //如果是课程学习记录
learningRecordsVo.setCoursesName(coursesService.getById(learningRecords.getCoursesId()).getName());
break;
}
//添加观看人数
//统计记录表里有多少人查看过这门资源
long count = this.count(lambdaQueryWrapper);
System.out.println(count);
learningRecordsVo.setNumber(count);
//把整合后该用户的学习记录添加到List里
list.add(learningRecordsVo);
// }
// if (one.getLearningMethod2() != null && one.getLearningMethod2().equals("1")){
// learningRecords.setLearningMethod2(one.getLearningMethod2());
// }
// this.updateById(learningRecords);
// return "修改成功";
}
System.out.println(list);
return list;
}
/**
* 根据用户id和学习资源id来判断记录是否存在
* @param learningRecords
* @return
*/
@Override
public String saveRecords(LearningRecords learningRecords) {
String userId = learningRecords.getUserId();
String coursesId = learningRecords.getCoursesId();
System.out.println("学习记录:"+learningRecords);
//查找该用户是否观看过该学习资源
LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
lambdaQueryWrapper
.eq(LearningRecords::getUserId, userId)
.eq(LearningRecords::getCoursesId, coursesId)
.eq(LearningRecords::getType, learningRecords.getType());
long count = this.count(lambdaQueryWrapper);
System.out.println("数据库："+count);
learningRecords.setStatus("1");//将该记录的状态设置为1
//更新观看时间
learningRecords.setAccessTime(LocalDateTime.now());
//设置默认封面
if (learningRecords.getContent() == null || learningRecords.getContent().equals("")){
learningRecords.setContent("https://teaching-edu123.oss-cn-beijing.aliyuncs.com/Borovets_ZH-CN5914681811_UHD.jpg");
}
// //添加记录封面
// switch (learningRecords.getType()) {
// case "4": //如果是资源学习
// learningRecords.setContent(learningResourceService.getById(learningRecords.getCoursesId()).getContent());//设置封面
// break;
// case "3": //如果是知识点学习记录
// learningRecords.setContent(knowledgePointService.getById(learningRecords.getCoursesId()).getContent());//设置封面
//
// break;
// case "2": //如果是章节学习记录
// learningRecords.setContent(chapterService.getById(learningRecords.getCoursesId()).getContent());//设置封面
//
// break;
// case "1": //如果是课程学习记录
// learningRecords.setContent(coursesService.getById(learningRecords.getCoursesId()).getImg());//设置封面
// break;
// }
// }
//
//
//}
if (count == 0){//如果没有就新增并记录学习方式是打开还是下载
//根据传上来的type设置
// learningRecords.setType(learningRecords.getType());
this.save(learningRecords);
return "添加成功";
}else {//有就修改记录,更新学习方式
LearningRecords one = this.getOne(lambdaQueryWrapper);
System.out.println(one);
learningRecords.setId(one.getId());//找到该条记录的id并赋值给本次观看记录
if ( one.getLearningMethod1() != null && one.getLearningMethod1().equals("1")){
learningRecords.setLearningMethod1(one.getLearningMethod1());
}
if (one.getLearningMethod2() != null && one.getLearningMethod2().equals("1")){
learningRecords.setLearningMethod2(one.getLearningMethod2());
}
this.updateById(learningRecords);
return "修改成功";
}
}
}

38
src/main/java/com/teaching/backend/service/records/LearningRecordsService.java
Unescape View File

@ -1,19 +1,19 @@
//package com.teaching.backend.service.records;
//
//import com.baomidou.mybatisplus.core.metadata.IPage;
//import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
//import com.baomidou.mybatisplus.extension.service.IService;
//import com.teaching.backend.model.entity.records.LearningRecords;
//import com.teaching.backend.model.vo.records.LearningRecordsVo;
//
//
//import java.util.List;
//
//public interface LearningRecordsService extends IService<LearningRecords> {
// public List<LearningRecordsVo> getAll(String username);
// public String saveRecords(LearningRecords learningRecords);
// IPage<LearningRecords> selectPageList(Page<LearningRecords> page, LearningRecords model);
//
// public String delete(List<Long> ids);
//
//}
package com.teaching.backend.service.records;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.IService;
import com.teaching.backend.model.entity.records.LearningRecords;
import com.teaching.backend.model.vo.records.LearningRecordsVo;
import java.util.List;
public interface LearningRecordsService extends IService<LearningRecords> {
public List<LearningRecordsVo> getAll(String username);
public String saveRecords(LearningRecords learningRecords);
IPage<LearningRecords> selectPageList(Page<LearningRecords> page, LearningRecords model);
public String delete(List<Long> ids);
}

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