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课程代码优化

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none 2023-02-25 11:03:50 +08:00
parent ba101e508b
commit bfa1040a54
6 changed files with 141 additions and 128 deletions
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65
src/main/java/xyz/playedu/api/bus/CourseBus.java
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@ -1,65 +0,0 @@
package xyz.playedu.api.bus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import xyz.playedu.api.domain.CategoryCourse;
import xyz.playedu.api.domain.Course;
import xyz.playedu.api.domain.CourseDepartment;
import xyz.playedu.api.service.CategoryCourseService;
import xyz.playedu.api.service.CourseDepartmentService;
import java.util.ArrayList;
import java.util.List;
/**
* @Author 杭州白书科技有限公司
* @create 2023/2/24 17:12
*/
@Component
public class CourseBus {
@Autowired
private CourseDepartmentService courseDepartmentService;
@Autowired
private CategoryCourseService categoryCourseService;
public void departmentRelate(Course course, Integer[] depIds) {
if (depIds == null || depIds.length == 0) {
return;
}
List<CourseDepartment> courseDepartments = new ArrayList<>();
for (int i = 0; i < depIds.length; i++) {
CourseDepartment courseDepartment = new CourseDepartment();
courseDepartment.setCourseId(course.getId());
courseDepartment.setDepId(depIds[i]);
courseDepartments.add(courseDepartment);
}
courseDepartmentService.saveBatch(courseDepartments);
}
public void resetDepartmentRelate(Course course, Integer[] depIds) {
courseDepartmentService.removeByCourseId(course.getId());
departmentRelate(course, depIds);
}
public void categoryRelate(Course course, Integer[] categoryIds) {
if (categoryIds == null || categoryIds.length == 0) {
return;
}
List<CategoryCourse> categoryCourses = new ArrayList<>();
for (int i = 0; i < categoryIds.length; i++) {
CategoryCourse categoryCourse = new CategoryCourse();
categoryCourse.setCourseId(course.getId());
categoryCourse.setCategoryId(categoryIds[i]);
categoryCourses.add(categoryCourse);
}
categoryCourseService.saveBatch(categoryCourses);
}
public void resetCategoryRelate(Course course, Integer[] categoryIds) {
categoryCourseService.removeByCourseId(course.getId());
categoryRelate(course, categoryIds);
}
}

67
src/main/java/xyz/playedu/api/controller/backend/CourseController.java
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@ -8,15 +8,13 @@ import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import xyz.playedu.api.PlayEduBackendThreadLocal;
import xyz.playedu.api.bus.CourseBus;
import xyz.playedu.api.constant.BPermissionConstant;
import xyz.playedu.api.domain.*;
import xyz.playedu.api.event.CourseDestroyEvent;
import xyz.playedu.api.exception.NotFoundException;
import xyz.playedu.api.middleware.BackendPermissionMiddleware;
import xyz.playedu.api.request.backend.CourseRequest;
import xyz.playedu.api.service.CategoryCourseService;
import xyz.playedu.api.service.CourseCategoryService;
import xyz.playedu.api.service.CourseDepartmentService;
import xyz.playedu.api.service.CourseService;
import xyz.playedu.api.types.JsonResponse;
import xyz.playedu.api.types.paginate.CoursePaginateFiler;
@ -40,15 +38,6 @@ public class CourseController {
@Autowired
private CourseCategoryService categoryService;//课程分类
@Autowired
private CategoryCourseService categoryCourseService;//课程与分类的关联表
@Autowired
private CourseDepartmentService courseDepartmentService;//课程与部门的关联表
@Autowired
protected CourseBus courseBus;
@Autowired
private ApplicationContext ctx;
@ -91,31 +80,17 @@ public class CourseController {
@BackendPermissionMiddleware(slug = BPermissionConstant.COURSE)
@PostMapping("/create")
@Transactional
public JsonResponse store(@RequestBody @Validated CourseRequest request) {
Course course = new Course();
course.setTitle(request.getTitle());
course.setThumb(request.getThumb());
course.setIsShow(request.getIsShow());
course.setCreatedAt(new Date());
course.setUpdatedAt(new Date());
courseService.save(course);
courseBus.departmentRelate(course, request.getDepIds());
courseBus.categoryRelate(course, request.getCategoryIds());
public JsonResponse store(@RequestBody @Validated CourseRequest req) {
courseService.createWithCategoryIdsAndDepIds(req.getTitle(), req.getThumb(), req.getIsShow(), req.getCategoryIds(), req.getDepIds());
return JsonResponse.success();
}
@BackendPermissionMiddleware(slug = BPermissionConstant.COURSE)
@GetMapping("/{id}")
public JsonResponse edit(@PathVariable(name = "id") Integer id) {
Course course = courseService.getById(id);
if (course == null) {
return JsonResponse.error("课程不存在");
}
List<Integer> depIds = courseDepartmentService.getDepIdsByCourseId(course.getId());
List<Integer> categoryIds = categoryCourseService.getDepIdsByCourseId(course.getId());
public JsonResponse edit(@PathVariable(name = "id") Integer id) throws NotFoundException {
Course course = courseService.findOrFail(id);
List<Integer> depIds = courseService.getDepIdsByCourseId(course.getId());
List<Integer> categoryIds = courseService.getCategoryIdsByCourseId(course.getId());
HashMap<String, Object> data = new HashMap<>();
data.put("course", course);
@ -128,31 +103,9 @@ public class CourseController {
@BackendPermissionMiddleware(slug = BPermissionConstant.COURSE)
@PutMapping("/{id}")
@Transactional
public JsonResponse update(@PathVariable(name = "id") Integer id, @RequestBody @Validated CourseRequest request) {
Course course = courseService.getById(id);
if (course == null) {
return JsonResponse.error("课程不存在");
}
Course newCourse = new Course();
newCourse.setId(course.getId());
if (!course.getTitle().equals(request.getTitle())) {
newCourse.setTitle(request.getTitle());
}
if (!course.getThumb().equals(request.getThumb())) {
newCourse.setThumb(request.getThumb());
}
if (!course.getIsShow().equals(request.getIsShow())) {
newCourse.setIsShow(request.getIsShow());
}
courseService.updateById(newCourse);
// 清空depIds
courseBus.resetDepartmentRelate(newCourse, request.getDepIds());
// 清空categoryIds
courseBus.resetCategoryRelate(newCourse, request.getCategoryIds());
public JsonResponse update(@PathVariable(name = "id") Integer id, @RequestBody @Validated CourseRequest req) throws NotFoundException {
Course course = courseService.findOrFail(id);
courseService.updateWithCategoryIdsAndDepIds(course, req.getTitle(), req.getThumb(), req.getIsShow(), req.getCategoryIds(), req.getDepIds());
return JsonResponse.success();
}

2
src/main/java/xyz/playedu/api/service/CategoryCourseService.java
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@ -13,7 +13,7 @@ import java.util.List;
public interface CategoryCourseService extends IService<CategoryCourse> {
List<Integer> getCourseIdsByCategoryIds(Integer[] categoryIds);
List<Integer> getDepIdsByCourseId(Integer id);
List<Integer> getCategoryIdsByCourseId(Integer id);
void removeByCourseId(Integer courseId);
}

28
src/main/java/xyz/playedu/api/service/CourseService.java
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@ -2,16 +2,36 @@ package xyz.playedu.api.service;
import xyz.playedu.api.domain.Course;
import com.baomidou.mybatisplus.extension.service.IService;
import xyz.playedu.api.exception.NotFoundException;
import xyz.playedu.api.types.paginate.CoursePaginateFiler;
import xyz.playedu.api.types.paginate.PaginationResult;
import java.util.List;
/**
* @author tengteng
* @description 针对表【courses】的数据库操作Service
* @createDate 2023-02-24 14:14:01
*/
* @author tengteng
* @description 针对表【courses】的数据库操作Service
* @createDate 2023-02-24 14:14:01
*/
public interface CourseService extends IService<Course> {
PaginationResult<Course> paginate(int page, int size, CoursePaginateFiler filter);
void createWithCategoryIdsAndDepIds(String title, String thumb, Integer isShow, Integer[] categoryIds, Integer[] depIds);
void updateWithCategoryIdsAndDepIds(Course course, String title, String thumb, Integer isShow, Integer[] categoryIds, Integer[] depIds);
void relateDepartments(Course course, Integer[] depIds);
void resetRelateDepartments(Course course, Integer[] depIds);
void relateCategories(Course course, Integer[] categoryIds);
void resetRelateCategories(Course course, Integer[] categoryIds);
Course findOrFail(Integer id) throws NotFoundException;
List<Integer> getDepIdsByCourseId(Integer courseId);
List<Integer> getCategoryIdsByCourseId(Integer courseId);
}

2
src/main/java/xyz/playedu/api/service/impl/CategoryCourseServiceImpl.java
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@ -31,7 +31,7 @@ public class CategoryCourseServiceImpl extends ServiceImpl<CategoryCourseMapper,
}
@Override
public List<Integer> getDepIdsByCourseId(Integer id) {
public List<Integer> getCategoryIdsByCourseId(Integer id) {
List<Integer> ids = new ArrayList<>();
List<CategoryCourse> categoryCourses = list(query().getWrapper().eq("course_id", id));
if (categoryCourses.size() == 0) {

105
src/main/java/xyz/playedu/api/service/impl/CourseServiceImpl.java
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@ -5,7 +5,11 @@ import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import xyz.playedu.api.domain.CategoryCourse;
import xyz.playedu.api.domain.Course;
import xyz.playedu.api.domain.CourseDepartment;
import xyz.playedu.api.exception.NotFoundException;
import xyz.playedu.api.service.CategoryCourseService;
import xyz.playedu.api.service.CourseDepartmentService;
import xyz.playedu.api.service.CourseService;
@ -15,6 +19,8 @@ import xyz.playedu.api.types.paginate.CoursePaginateFiler;
import xyz.playedu.api.types.paginate.PaginationResult;
import xyz.playedu.api.util.HelperUtil;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
/**
@ -70,6 +76,105 @@ public class CourseServiceImpl extends ServiceImpl<CourseMapper, Course> impleme
return pageResult;
}
@Override
@Transactional
public void createWithCategoryIdsAndDepIds(String title, String thumb, Integer isShow, Integer[] categoryIds, Integer[] depIds) {
Course course = new Course();
course.setTitle(title);
course.setThumb(thumb);
course.setIsShow(isShow);
course.setCreatedAt(new Date());
course.setUpdatedAt(new Date());
save(course);
relateCategories(course, categoryIds);
relateDepartments(course, depIds);
}
@Override
public void relateDepartments(Course course, Integer[] depIds) {
if (depIds == null || depIds.length == 0) {
return;
}
List<CourseDepartment> courseDepartments = new ArrayList<>();
for (int i = 0; i < depIds.length; i++) {
CourseDepartment courseDepartment = new CourseDepartment();
courseDepartment.setCourseId(course.getId());
courseDepartment.setDepId(depIds[i]);
courseDepartments.add(courseDepartment);
}
courseDepartmentService.saveBatch(courseDepartments);
}
@Override
public void resetRelateDepartments(Course course, Integer[] depIds) {
courseDepartmentService.removeByCourseId(course.getId());
relateDepartments(course, depIds);
}
@Override
public void relateCategories(Course course, Integer[] categoryIds) {
if (categoryIds == null || categoryIds.length == 0) {
return;
}
List<CategoryCourse> categoryCourses = new ArrayList<>();
for (int i = 0; i < categoryIds.length; i++) {
CategoryCourse categoryCourse = new CategoryCourse();
categoryCourse.setCourseId(course.getId());
categoryCourse.setCategoryId(categoryIds[i]);
categoryCourses.add(categoryCourse);
}
categoryCourseService.saveBatch(categoryCourses);
}
@Override
public void resetRelateCategories(Course course, Integer[] categoryIds) {
categoryCourseService.removeByCourseId(course.getId());
relateCategories(course, categoryIds);
}
@Override
@Transactional
public void updateWithCategoryIdsAndDepIds(Course course, String title, String thumb, Integer isShow, Integer[] categoryIds, Integer[] depIds) {
Course newCourse = new Course();
newCourse.setId(course.getId());
if (!course.getTitle().equals(title)) {
newCourse.setTitle(title);
}
if (!course.getThumb().equals(thumb)) {
newCourse.setThumb(thumb);
}
if (!course.getIsShow().equals(isShow)) {
newCourse.setIsShow(isShow);
}
updateById(newCourse);
resetRelateCategories(newCourse, categoryIds);
resetRelateDepartments(newCourse, depIds);
}
@Override
public Course findOrFail(Integer id) throws NotFoundException {
Course course = getOne(query().getWrapper().eq("id", id));
if (course == null) {
throw new NotFoundException("课程不存在");
}
return course;
}
@Override
public List<Integer> getDepIdsByCourseId(Integer courseId) {
return courseDepartmentService.getDepIdsByCourseId(courseId);
}
@Override
public List<Integer> getCategoryIdsByCourseId(Integer courseId) {
return categoryCourseService.getCategoryIdsByCourseId(courseId);
}
}