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完善了删除功能

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Chester.X 2024-07-05 01:52:46 +08:00
parent f9272335f2
commit d027e26f8c
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src/main/java/org/cmh/backend/CourseManagement/service/CourseService.java
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@ -1,99 +1,3 @@
//package org.cmh.backend.CourseManagement.service;
//
//import org.cmh.backend.CourseManagement.model.Course;
//import org.cmh.backend.CourseManagement.repository.CourseRepository;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.stereotype.Service;
//import org.springframework.web.multipart.MultipartFile;
//
//import java.io.IOException;
//import java.nio.file.Files;
//import java.nio.file.Path;
//import java.nio.file.Paths;
//import java.util.List;
//import java.util.Optional;
//
//@Service
//public class CourseService {
//
// @Autowired
// private CourseRepository courseRepository;
//
// public Course createCourse(String name, String description, String author, String sortOrder, MultipartFile coverImage, MultipartFile video) {
// Optional<Course> existingCourse = courseRepository.findByName(name);
// if (existingCourse.isPresent()) {
// return null;
// }
//
// Course course = new Course();
// course.setName(name);
// course.setDescription(description);
// course.setAuthor(author);
// course.setSortOrder(sortOrder);
//
// try {
// if (coverImage != null && !coverImage.isEmpty()) {
// String coverImagePath = saveFile(coverImage);
// course.setCoverImagePath(coverImagePath);
// }
// if (video != null && !video.isEmpty()) {
// String videoPath = saveFile(video);
// course.setVideoPath(videoPath);
// }
// } catch (IOException e) {
// e.printStackTrace();
// return null;
// }
//
// return courseRepository.save(course);
// }
//
// public Course updateCourse(Long id, String name, String description, String author, String sortOrder, MultipartFile coverImage, MultipartFile video) {
// return courseRepository.findById(id)
// .map(course -> {
// course.setName(name);
// course.setDescription(description);
// course.setAuthor(author);
// course.setSortOrder(sortOrder);
//
// try {
// if (coverImage != null && !coverImage.isEmpty()) {
// String coverImagePath = saveFile(coverImage);
// course.setCoverImagePath(coverImagePath);
// }
// if (video != null && !video.isEmpty()) {
// String videoPath = saveFile(video);
// course.setVideoPath(videoPath);
// }
// } catch (IOException e) {
// e.printStackTrace();
// return null;
// }
//
// return courseRepository.save(course);
// }).orElse(null);
// }
//
// private String saveFile(MultipartFile file) throws IOException {
// String filename = System.currentTimeMillis() + "_" + file.getOriginalFilename();
// Path filePath = Paths.get("uploads", filename);
// Files.createDirectories(filePath.getParent());
// Files.write(filePath, file.getBytes());
// return filePath.toString();
// }
//
// public boolean deleteCourse(Long id) {
// return courseRepository.findById(id)
// .map(course -> {
// courseRepository.delete(course);
// return true;
// }).orElse(false);
// }
//
// public List<Course> getAllCourses() {
// return courseRepository.findAll();
// }
//}
package org.cmh.backend.CourseManagement.service; package org.cmh.backend.CourseManagement.service;
import jakarta.persistence.EntityNotFoundException; import jakarta.persistence.EntityNotFoundException;