优化学员的学习记录删除

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

@@ -2,9 +2,11 @@ package xyz.playedu.api.controller.backend;
 
 import org.apache.commons.collections4.MapUtils;
 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.domain.UserCourseRecord;
+import xyz.playedu.api.event.UserCourseRecordDestroyEvent;
 import xyz.playedu.api.request.backend.CourseUserDestroyRequest;
 import xyz.playedu.api.service.UserCourseRecordService;
 import xyz.playedu.api.service.UserService;
@@ -12,7 +14,9 @@ import xyz.playedu.api.types.JsonResponse;
 import xyz.playedu.api.types.paginate.CourseUserPaginateFilter;
 import xyz.playedu.api.types.paginate.PaginationResult;
 
+import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 
 /**
  * @Author 杭州白书科技有限公司
@@ -28,6 +32,9 @@ public class CourseUserController {
     @Autowired
     private UserService userService;
 
+    @Autowired
+    private ApplicationContext ctx;
+
     @GetMapping("/index")
     public JsonResponse index(@PathVariable(name = "courseId") Integer courseId, @RequestParam HashMap<String, Object> params) {
         Integer page = MapUtils.getInteger(params, "page", 1);
@@ -61,7 +68,14 @@ public class CourseUserController {
         if (req.getIds().size() == 0) {
             return JsonResponse.error("请选择需要删除的数据");
         }
-        userCourseRecordService.destroy(courseId, req.getIds());
+        List<UserCourseRecord> records = userCourseRecordService.chunks(req.getIds(), new ArrayList<>() {{
+            add("user_id");
+            add("id");
+        }});
+        for (UserCourseRecord record : records) {
+            userCourseRecordService.removeById(record);
+            ctx.publishEvent(new UserCourseRecordDestroyEvent(this, record.getUserId(), courseId));
+        }
         return JsonResponse.success();
     }
 

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

@@ -0,0 +1,27 @@
+package xyz.playedu.api.event;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.springframework.context.ApplicationEvent;
+
+import java.util.Date;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/4/4 10:12
+ */
+@Getter
+@Setter
+public class UserCourseRecordDestroyEvent extends ApplicationEvent {
+
+    private Integer userId;
+    private Integer courseId;
+    private Date createdAt;
+
+    public UserCourseRecordDestroyEvent(Object source, Integer userId, Integer courseId) {
+        super(source);
+        this.userId = userId;
+        this.courseId = courseId;
+        this.createdAt = new Date();
+    }
+}

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

@@ -0,0 +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.UserCourseRecordDestroyEvent;
+import xyz.playedu.api.service.UserCourseHourRecordService;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/4/4 10:16
+ */
+@Component
+public class UserCourseRecordDestroyListener {
+
+    @Autowired
+    private UserCourseHourRecordService userCourseHourRecordService;
+
+    @EventListener
+    public void emptyUserCourseHourRecords(UserCourseRecordDestroyEvent event) {
+        userCourseHourRecordService.remove(event.getUserId(), event.getCourseId());
+    }
+
+}

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

@@ -24,5 +24,7 @@ public interface UserCourseHourRecordService extends IService<UserCourseHourReco
 
     void removeByCourseId(Integer courseId);
 
+    void remove(Integer userId, Integer courseId);
+
     List<UserCourseHourRecordCountMapper> getUserCourseHourCount(Integer userId, List<Integer> courseIds, Integer isFinished);
 }

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

@@ -25,4 +25,6 @@ public interface UserCourseRecordService extends IService<UserCourseRecord> {
     void destroy(Integer courseId, List<Integer> ids);
 
     void removeByCourseId(Integer courseId);
+
+    List<UserCourseRecord> chunks(List<Integer> ids, List<String> fields);
 }

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

@@ -99,6 +99,11 @@ public class UserCourseHourRecordServiceImpl extends ServiceImpl<UserCourseHourR
         }
         return getBaseMapper().getUserCourseHourCount(userId, courseIds, isFinished);
     }
+
+    @Override
+    public void remove(Integer userId, Integer courseId) {
+        remove(query().getWrapper().eq("user_id", userId).eq("course_id", courseId));
+    }
 }
 
 

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

@@ -99,6 +99,11 @@ public class UserCourseRecordServiceImpl extends ServiceImpl<UserCourseRecordMap
     public void removeByCourseId(Integer courseId) {
         remove(query().getWrapper().eq("course_id", courseId));
     }
+
+    @Override
+    public List<UserCourseRecord> chunks(List<Integer> ids, List<String> fields) {
+        return list(query().getWrapper().in("id", ids).select(fields));
+    }
 }