课程分类删除

src/main/java/xyz/playedu/api/controller/backend/CourseCategoryController.java

@@ -4,6 +4,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.ApplicationContext;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
+import xyz.playedu.api.PlayEduBackendThreadLocal;
 import xyz.playedu.api.constant.BPermissionConstant;
 import xyz.playedu.api.domain.CourseCategory;
 import xyz.playedu.api.event.CourseCategoryDestroyEvent;
@@ -77,9 +78,7 @@ public class CourseCategoryController {
     public JsonResponse destroy(@PathVariable Integer id) throws NotFoundException {
         CourseCategory category = categoryService.findOrFail(id);
         categoryService.deleteById(category.getId());
-
-        ctx.publishEvent(new CourseCategoryDestroyEvent(this, id, new Date()));
-
+        ctx.publishEvent(new CourseCategoryDestroyEvent(this, PlayEduBackendThreadLocal.getAdminUserID(), category.getId(), new Date()));
         return JsonResponse.success();
     }
 

src/main/java/xyz/playedu/api/event/CourseCategoryDestroyEvent.java

@@ -14,11 +14,13 @@ import java.util.Date;
 @Getter
 public class CourseCategoryDestroyEvent extends ApplicationEvent {
 
+    private Integer adminId;
     private Integer categoryId;
     private Date at;
 
-    public CourseCategoryDestroyEvent(Object source, Integer categoryId, Date date) {
+    public CourseCategoryDestroyEvent(Object source, Integer adminId, Integer categoryId, Date date) {
         super(source);
+        this.adminId = adminId;
         this.categoryId = categoryId;
         this.at = date;
     }

src/main/java/xyz/playedu/api/listener/CourseCategoryDestroyListener.java

@@ -1,14 +1,25 @@
 package xyz.playedu.api.listener;
 
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.event.EventListener;
 import org.springframework.stereotype.Component;
+import xyz.playedu.api.event.CourseCategoryDestroyEvent;
+import xyz.playedu.api.service.CourseService;
 
 /**
  * @Author 杭州白书科技有限公司
  * @create 2023/2/24 14:07
  */
 @Component
-@Slf4j
 public class CourseCategoryDestroyListener {
 
+    @Autowired
+    private CourseService courseService;
+
+    @EventListener
+    public void resetRelateCourseCategoryId(CourseCategoryDestroyEvent event) {
+        courseService.removeCategoryIdRelate(event.getCategoryId());
+    }
+
 }

src/main/java/xyz/playedu/api/service/CourseService.java

@@ -36,4 +36,6 @@ public interface CourseService extends IService<Course> {
     List<Integer> getCategoryIdsByCourseId(Integer courseId);
 
     void updateClassHour(Integer courseId, Integer classHour);
+
+    void removeCategoryIdRelate(Integer categoryId);
 }

src/main/java/xyz/playedu/api/service/impl/CourseServiceImpl.java

@@ -183,6 +183,11 @@ public class CourseServiceImpl extends ServiceImpl<CourseMapper, Course> impleme
         course.setClassHour(classHour);
         updateById(course);
     }
+
+    @Override
+    public void removeCategoryIdRelate(Integer categoryId) {
+        categoryCourseService.remove(categoryCourseService.query().getWrapper().eq("category_id", categoryId));
+    }
 }