added: 课时重复添加检测

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

@@ -10,6 +10,7 @@ import org.springframework.stereotype.Service;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
+import java.util.stream.Collectors;
 
 /**
  * @author tengteng
@@ -93,6 +94,11 @@ public class CourseHourServiceImpl extends ServiceImpl<CourseHourMapper, CourseH
         }
         updateBatchById(hours);
     }
+
+    @Override
+    public List<Integer> getRidsByCourseId(Integer courseId, String type) {
+        return list(query().getWrapper().eq("course_id", courseId).eq("type", type)).stream().map(CourseHour::getRid).toList();
+    }
 }