tonytech/kindergarten_java
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优化

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This commit is contained in:
En 2026-03-19 15:38:00 +08:00
parent a2751d7aa5
commit 7743ae7a01
2 changed files with 53 additions and 0 deletions
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6
reading-platform-java/src/main/java/com/reading/platform/service/CourseLessonService.java
View File

@ -21,6 +21,12 @@ public interface CourseLessonService extends IService<CourseLesson> {
*/
CourseLesson findById(Long id);
/**
* 按 lessonType 查询包含该类型环节的课程 ID 列表
* 兼容多种存储格式：SOCIAL/SOCIETY/DOMAIN_SOCIAL、INTRODUCTION/INTRO 等
*/
List<Long> findCourseIdsByLessonType(String lessonType);
/**
* 按类型查询课程环节
*/

47
reading-platform-java/src/main/java/com/reading/platform/service/impl/CourseLessonServiceImpl.java
View File

@ -14,7 +14,10 @@ import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.time.LocalDateTime;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;
/**
* 课程环节服务实现类
@ -59,6 +62,50 @@ public class CourseLessonServiceImpl extends ServiceImpl<CourseLessonMapper, Cou
return lesson;
}
/**
* 按 lessonType 查询包含该类型环节的课程 ID 列表
* 兼容多种存储格式：SOCIAL/SOCIETY/DOMAIN_SOCIAL、INTRODUCTION/INTRO 等
*/
@Override
public List<Long> findCourseIdsByLessonType(String lessonType) {
List<String> typesToMatch = resolveLessonTypeVariants(lessonType);
if (typesToMatch.isEmpty()) {
return Collections.emptyList();
}
LambdaQueryWrapper<CourseLesson> wrapper = new LambdaQueryWrapper<CourseLesson>()
.select(CourseLesson::getCourseId);
if (typesToMatch.size() == 1) {
wrapper.eq(CourseLesson::getLessonType, typesToMatch.get(0));
} else {
wrapper.in(CourseLesson::getLessonType, typesToMatch);
}
return this.list(wrapper).stream()
.map(CourseLesson::getCourseId)
.distinct()
.collect(Collectors.toList());
}
/**
* 将前端传入的 lessonType 解析为数据库中可能存储的多种格式
*/
private List<String> resolveLessonTypeVariants(String lessonType) {
if (lessonType == null || lessonType.isBlank()) {
return Collections.emptyList();
}
return switch (lessonType.toUpperCase()) {
case "SOCIAL" -> Arrays.asList("SOCIAL", "SOCIETY", "DOMAIN_SOCIAL");
case "SOCIETY" -> Arrays.asList("SOCIAL", "SOCIETY", "DOMAIN_SOCIAL");
case "SCIENCE" -> Arrays.asList("SCIENCE", "DOMAIN_SCIENCE");
case "LANGUAGE" -> Arrays.asList("LANGUAGE", "DOMAIN_LANGUAGE");
case "HEALTH" -> Arrays.asList("HEALTH", "DOMAIN_HEALTH");
case "ART" -> Arrays.asList("ART", "DOMAIN_ART");
case "INTRODUCTION" -> Arrays.asList("INTRODUCTION", "INTRO");
case "INTRO" -> Arrays.asList("INTRODUCTION", "INTRO");
case "COLLECTIVE" -> Collections.singletonList("COLLECTIVE");
default -> Collections.singletonList(lessonType);
};
}
/**
* 按类型查询课程环节
*/