导入课程验证

web/src/main/java/com/ibeetl/jlw/dao/TeacherOpenCourseMergeCourseInfoDao.java

@@ -53,4 +53,13 @@ public interface TeacherOpenCourseMergeCourseInfoDao extends BaseMapper<TeacherO
      * @return
      */
     TeacherOpenCourseMergeCourseInfo getTreeLocalCacheByTeacherOpenCourseId(@NotNull(message = "开课ID不能为空") Long teacherOpenCourseId);
+
+    /**
+     * 通过开课ID查询是否已经绑定过课程
+     * 包含他自己本身
+     *
+     * @param teacherOpenCourseId
+     * @return
+     */
+    boolean isNotExistsByTeacherOpenCourseId(@NotNull(message = "开课ID不能为空") Long teacherOpenCourseId);
 }

web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseMergeCourseInfoService.java

@@ -3,6 +3,7 @@ package com.ibeetl.jlw.service;
 import cn.hutool.core.bean.BeanUtil;
 import cn.hutool.core.bean.copier.CopyOptions;
 import cn.hutool.core.collection.CollectionUtil;
+import cn.hutool.core.lang.Assert;
 import cn.hutool.core.map.MapUtil;
 import cn.hutool.core.stream.CollectorUtil;
 import cn.hutool.core.util.ObjectUtil;
@@ -10,6 +11,7 @@ import cn.hutool.extra.spring.SpringUtil;
 import cn.jlw.util.ToolUtils;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
+import com.google.common.base.Optional;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.ibeetl.admin.core.entity.CoreUser;
@@ -88,12 +90,12 @@ public class TeacherOpenCourseMergeCourseInfoService extends CoreBaseService<Tea
     /**
      * 针对 {@link #getTreeLocalCacheByTeacherOpenCourseId} 的缓存
      */
-    private final LoadingCache<Long, TeacherOpenCourseMergeCourseInfoTree> treeLocalCache
+    private final LoadingCache<Long, Optional<TeacherOpenCourseMergeCourseInfoTree>> treeLocalCache
             = CacheUtils.buildAsyncReloadingCache(Duration.ofHours(1L), // 过期时间 1 小时
-            new CacheLoader<Long, TeacherOpenCourseMergeCourseInfoTree>() {
+            new CacheLoader<Long, Optional<TeacherOpenCourseMergeCourseInfoTree>>() {
                 @Override
-                public TeacherOpenCourseMergeCourseInfoTree load(Long teacherOpenCourseId) {
+                public Optional<TeacherOpenCourseMergeCourseInfoTree> load(Long teacherOpenCourseId) {
-                    return teacherOpenCourseMergeCourseInfoDao.getValueByTeacherOpenCourseId(teacherOpenCourseId);
+                    return Optional.fromNullable(teacherOpenCourseMergeCourseInfoDao.getValueByTeacherOpenCourseId(teacherOpenCourseId));
                 }
             });
 
@@ -468,6 +470,11 @@ public class TeacherOpenCourseMergeCourseInfoService extends CoreBaseService<Tea
     public void copyFromCourseInfo(@NotEmpty(message = "系统课程ID不能为空！") Set<Long> courseInfoIds,
                                    @NotNull(message = "开课ID不能为空！")  final Long teacherOpenCourseId) {
 
+        // 查询是否绑定过课程
+        boolean notExists = teacherOpenCourseMergeCourseInfoDao.isNotExistsByTeacherOpenCourseId(teacherOpenCourseId);
+
+        Assert.isTrue(notExists, "已绑定过课程，请先重置！");
+
         // 开启并行处理
         courseInfoIds.stream().parallel().forEach(courseInfoId -> {
             // 当前的课程信息
@@ -557,6 +564,8 @@ public class TeacherOpenCourseMergeCourseInfoService extends CoreBaseService<Tea
         Map<String, DeleteResourcesBy> beansOfType = SpringUtil.getBeansOfType(DeleteResourcesBy.class);
         // 调用子类实现
         beansOfType.forEach((beanName, bean) -> bean.deleteByTeacherOpenCourseId(teacherOpenCourseId));
+        // 清理缓存
+        invalidateAllCleanUpCourseInfoTreeLocalCache();
     }
 
     /**
@@ -581,7 +590,7 @@ public class TeacherOpenCourseMergeCourseInfoService extends CoreBaseService<Tea
      */
     public TeacherOpenCourseMergeCourseInfoTree getTreeLocalCacheByTeacherOpenCourseId(
             @NotNull(message = "开课ID不能为空！") final Long teacherOpenCourseId) {
-        return treeLocalCache.getUnchecked(teacherOpenCourseId);
+        return treeLocalCache.getUnchecked(teacherOpenCourseId).orNull();
     }
 
     /**

web/src/main/resources/sql/jlw/teacherOpenCourseMergeCourseInfo.md

@@ -813,7 +813,7 @@ getExcelValues
 
 getValueByTeacherOpenCourseId
 ===
-* 根据开课课程章节小节ID
+* 根据开课ID查询列表
 
   select * 
   from teacher_open_course_merge_course_info t
@@ -823,6 +823,18 @@ getValueByTeacherOpenCourseId
   and t.course_info_parent_id is null
   limit 1
 
+
+isNotExistsByTeacherOpenCourseId
+===
+* 通过开课ID查询是否已经绑定过课程
+
+  select count(1) = 0
+  from teacher_open_course_merge_course_info t
+  where 1 = 1
+  and t.teacher_open_course_id = #teacherOpenCourseId#
+  and t.course_info_status = 1
+  limit 1
+
 getTreeLocalCacheByTeacherOpenCourseId
 ===
 * 根据开课课程章节小节ID