战术更新

src/main/java/com/gogirl/application/store/training/impl/TrainingStartClassLogTechnicianServiceImpl.java

@@ -111,21 +111,22 @@ public class TrainingStartClassLogTechnicianServiceImpl extends ServiceImpl<Trai
     public IPage<TrainingStartClass> queryPageClass(TrainingStartClassQuery qry) {
         IPage<TrainingStartClass> page = new Page<>(qry.getPageNum(), qry.getPageSize());
         page = trainingStartClassMapper.selectPage(page, new LambdaQueryWrapper<TrainingStartClass>().eq(TrainingStartClass::getStatus, 1));
-        if (ListUtil.isEmpty(page.getRecords())) {
-            return page;
-        }
+
 
         //join
         List<Integer> trainingStartClassIds = page.getRecords().stream().map(TrainingStartClass::getId).collect(Collectors.toList());
 
-        Map<Integer, List<TrainingCourse>> map = trainingCourseMapper.listByTrainingStartClassIds(trainingStartClassIds).stream()
-                .collect(Collectors.groupingBy(TrainingCourse::getTrainingStartClassId));
+        if (ListUtil.isNotEmpty(trainingStartClassIds)) {
+            Map<Integer, List<TrainingCourse>> map = trainingCourseMapper.listByTrainingStartClassIds(trainingStartClassIds).stream()
+                    .collect(Collectors.groupingBy(TrainingCourse::getTrainingStartClassId));
+
+            page.getRecords().forEach(trainingStartClass -> {
+                if (ListUtil.isNotEmpty(map.get(trainingStartClass.getCourseId()))) {
+                    trainingStartClass.setTrainingCourseList(map.get(trainingStartClass.getId()));
+                }
+            });
+        }
 
-        page.getRecords().forEach(trainingStartClass -> {
-            if (ListUtil.isNotEmpty(map.get(trainingStartClass.getCourseId()))) {
-                trainingStartClass.setTrainingCourseList(map.get(trainingStartClass.getId()));
-            }
-        });
         return page;
     }
 

src/main/resources/mapper/store/TrainingCourseMapper.xml

@@ -2,7 +2,7 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 <mapper namespace="com.gogirl.infrastructure.mapper.store.training.TrainingCourseMapper">
     <select id="listByTrainingStartClassIds" resultType="com.gogirl.domain.store.training.TrainingCourse">
-        select t1.id traing_start_class_id,t3.* from training_start_class t1
+        select t1.id training_start_class_id,t3.* from training_start_class t1
         left join training_start_class_course t2 on t1.id =t2.training_start_class_id
         left join training_course t3 on t2.training_course_id =t3.id
         where t1.id in