fix: sync admin task steps to student classes

src/main/java/com/sztzjy/linkCommerce/service/impl/TrainingTaskServiceImpl.java

@@ -108,12 +108,14 @@ public class TrainingTaskServiceImpl implements TrainingTaskService {
     }
 
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public TrainingTask update(String id, TrainingTask task) {
         ensureTrainingTaskTable();
         TrainingTask existing = trainingTaskMapper.selectByPrimaryKey(id);
         if (existing == null) {
             throw new IllegalArgumentException("实训任务不存在");
         }
+        String previousSteps = existing.getSteps();
         normalizeTask(task);
         TrainingTask builtInTask = requireBuiltInTask(existing.getTaskKey());
         task.setId(id);
@@ -124,6 +126,7 @@ public class TrainingTaskServiceImpl implements TrainingTaskService {
         task.setSteps(normalizeSteps(task.getSteps(), builtInTask));
         task.setUpdateTime(new Date());
         trainingTaskMapper.updateByPrimaryKeySelective(task);
+        synchronizeClassTaskSteps(existing.getTaskKey(), previousSteps, task.getSteps());
         return trainingTaskMapper.selectByPrimaryKey(id);
     }
 
@@ -492,6 +495,34 @@ public class TrainingTaskServiceImpl implements TrainingTaskService {
         }
     }
 
+    private void synchronizeClassTaskSteps(String taskKey, String previousSteps, String updatedSteps) {
+        if (schoolClassMapper == null || trainingTaskClassConfigMapper == null
+                || StringUtils.equals(previousSteps, updatedSteps)) {
+            return;
+        }
+        SchoolClassExample example = new SchoolClassExample();
+        example.createCriteria().andClassTypeEqualTo("TEACHING");
+        List<SchoolClass> teachingClasses = schoolClassMapper.selectByExample(example);
+        if (teachingClasses == null || teachingClasses.isEmpty()) {
+            return;
+        }
+        for (SchoolClass teachingClass : teachingClasses) {
+            if (teachingClass == null || StringUtils.isBlank(teachingClass.getSchoolClassId())) {
+                continue;
+            }
+            TrainingTaskClassConfig classTask = trainingTaskClassConfigMapper.selectByTeachingClassAndTaskKey(
+                    teachingClass.getSchoolClassId(), taskKey);
+            if (classTask == null || !StringUtils.equals(previousSteps, classTask.getSteps())) {
+                continue;
+            }
+            TrainingTaskClassConfig update = new TrainingTaskClassConfig();
+            update.setId(classTask.getId());
+            update.setSteps(updatedSteps);
+            update.setUpdateTime(new Date());
+            trainingTaskClassConfigMapper.updateByPrimaryKeySelective(update);
+        }
+    }
+
     private String resolveClassTaskCreator(String teachingClassId, String operatorId) {
         if (StringUtils.isNotBlank(operatorId)) {
             return operatorId;

src/test/java/com/sztzjy/linkCommerce/service/impl/TrainingTaskServiceImplTest.java

@@ -140,6 +140,43 @@ class TrainingTaskServiceImplTest {
         assertTrue(captor.getValue().getSteps().contains("Custom Step"));
     }
 
+    @Test
+    void updateTaskSynchronizesOnlyClassStepsStillMatchingThePreviousGlobalConfiguration() {
+        TrainingTaskServiceImpl service = new TrainingTaskServiceImpl();
+        service.trainingTaskMapper = mock(TrainingTaskMapper.class);
+        service.trainingTaskClassConfigMapper = mock(TrainingTaskClassConfigMapper.class);
+        service.schoolClassMapper = mock(SchoolClassMapper.class);
+
+        TrainingTask stored = storedTask("task-1", "new-product-survey");
+        when(service.trainingTaskMapper.selectByPrimaryKey("task-1")).thenReturn(stored);
+
+        SchoolClass defaultClass = teachingClass("class-default", "teacher-1");
+        SchoolClass customizedClass = teachingClass("class-customized", "teacher-2");
+        when(service.schoolClassMapper.selectByExample(any())).thenReturn(List.of(defaultClass, customizedClass));
+
+        TrainingTaskClassConfig defaultConfig = overrideTask("config-default", "class-default", "new-product-survey");
+        defaultConfig.setSteps("[\"Step 1\",\"Step 2\",\"Step 3\",\"Step 4\"]");
+        TrainingTaskClassConfig customizedConfig = overrideTask("config-customized", "class-customized", "new-product-survey");
+        customizedConfig.setSteps("[\"Teacher Step\"]");
+        when(service.trainingTaskClassConfigMapper.selectByTeachingClassAndTaskKey("class-default", "new-product-survey"))
+                .thenReturn(defaultConfig);
+        when(service.trainingTaskClassConfigMapper.selectByTeachingClassAndTaskKey("class-customized", "new-product-survey"))
+                .thenReturn(customizedConfig);
+
+        TrainingTask payload = new TrainingTask();
+        payload.setProjectName("Foundation");
+        payload.setTaskKey("new-product-survey");
+        payload.setTaskName("Admin Updated Name");
+        payload.setSteps("[\"Admin Step 1\",\"Admin Step 2\"]");
+
+        service.update("task-1", payload);
+
+        ArgumentCaptor<TrainingTaskClassConfig> captor = ArgumentCaptor.forClass(TrainingTaskClassConfig.class);
+        verify(service.trainingTaskClassConfigMapper).updateByPrimaryKeySelective(captor.capture());
+        assertEquals("config-default", captor.getValue().getId());
+        assertTrue(captor.getValue().getSteps().contains("Admin Step 1"));
+    }
+
     @Test
     void createRejectsUnknownTaskKeyBecauseTaskCountIsFixed() {
         TrainingTaskServiceImpl service = new TrainingTaskServiceImpl();