增加树结构的hasChildren

web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourseMergeCourseInfoTree.java

@@ -119,4 +119,8 @@ public class TeacherOpenCourseMergeCourseInfoTree {
             "where t.course_info_parent_id = #teacherOpenCourseMergeCourseInfoId# ")
     private List<TeacherOpenCourseMergeCourseInfoTree> children;
 
+    @FetchSql("select count(1) > 0 from teacher_open_course_merge_course_info t " +
+            "where t.course_info_parent_id = #teacherOpenCourseMergeCourseInfoId# ")
+    private Boolean hasChildren;
+
 }