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返回线上课学员的学习记录最早的学习时间

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xxx 2023-11-15 10:07:51 +08:00
parent e8399362ea
commit 877aec3b01
5 changed files with 39 additions and 0 deletions
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9
playedu-api/src/main/java/xyz/playedu/api/controller/backend/CourseUserController.java
View File

@ -36,6 +36,7 @@ import xyz.playedu.common.types.JsonResponse;
import xyz.playedu.common.types.mapper.UserCourseHourRecordUserFirstCreatedAtMapper;
import xyz.playedu.common.types.paginate.PaginationResult;
import xyz.playedu.common.types.paginate.UserPaginateFilter;
import xyz.playedu.course.domain.UserCourseHourRecord;
import xyz.playedu.course.domain.UserCourseRecord;
import xyz.playedu.course.service.CourseService;
import xyz.playedu.course.service.UserCourseHourRecordService;
@ -141,6 +142,14 @@ public class CourseUserController {
userService.getDepIdsGroup(result.getData().stream().map(User::getId).toList()));
data.put("departments", departmentService.id2name());
// 获取每个学员的最早学习时间
List<UserCourseHourRecord> perUserEarliestRecords =
userCourseHourRecordService.getCoursePerUserEarliestRecord(courseId);
data.put(
"per_user_earliest_records",
perUserEarliestRecords.stream()
.collect(Collectors.toMap(UserCourseHourRecord::getUserId, e -> e)));
return JsonResponse.data(data);
}

2
playedu-course/src/main/java/xyz/playedu/course/mapper/UserCourseHourRecordMapper.java
View File

@ -50,4 +50,6 @@ public interface UserCourseHourRecordMapper extends BaseMapper<UserCourseHourRec
Long paginateCount(UserCourseHourRecordPaginateFilter filter);
List<UserCourseHourRecord> getUserPerCourseEarliestRecord(Integer userId);
List<UserCourseHourRecord> getCoursePerUserEarliestRecord(Integer courseId);
}

2
playedu-course/src/main/java/xyz/playedu/course/service/UserCourseHourRecordService.java
View File

@ -68,4 +68,6 @@ public interface UserCourseHourRecordService extends IService<UserCourseHourReco
int page, int size, UserCourseHourRecordPaginateFilter filter);
List<UserCourseHourRecord> getUserPerCourseEarliestRecord(Integer userId);
List<UserCourseHourRecord> getCoursePerUserEarliestRecord(Integer courseId);
}

5
playedu-course/src/main/java/xyz/playedu/course/service/impl/UserCourseHourRecordServiceImpl.java
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@ -184,4 +184,9 @@ public class UserCourseHourRecordServiceImpl
public List<UserCourseHourRecord> getUserPerCourseEarliestRecord(Integer userId) {
return getBaseMapper().getUserPerCourseEarliestRecord(userId);
}
@Override
public List<UserCourseHourRecord> getCoursePerUserEarliestRecord(Integer courseId) {
return getBaseMapper().getCoursePerUserEarliestRecord(courseId);
}
}

21
playedu-course/src/main/resources/mapper/UserCourseHourRecordMapper.xml
View File

@ -168,4 +168,25 @@
AND `b`.`course_id` = `a`.`course_id`
AND `b`.`user_id` = `a`.`user_id`;
</select>
<select id="getCoursePerUserEarliestRecord" resultType="xyz.playedu.course.domain.UserCourseHourRecord">
SELECT
`a`.*
FROM
`user_course_hour_records` AS `a`
INNER JOIN (
SELECT
min(`created_at`) AS `min_created_at`,
`course_id`,
`user_id`
FROM
`user_course_hour_records`
WHERE
`course_id` = #{courseId}
GROUP BY
`course_id`,
`user_id`) AS `b` ON `b`.`min_created_at` = `a`.`created_at`
AND `b`.`course_id` = `a`.`course_id`
AND `b`.`user_id` = `a`.`user_id`;
</select>
</mapper>