2.11 发布删除话题时更新话题引用次数

src/main/java/cn/meteor/beyondclouds/modules/post/api/PostApi.java

@@ -79,7 +79,7 @@ public class PostApi {
 
 
         //发布动态
         //发布动态
         try {
         try {
-            postService.publishPost(post);
+            postService.publishPost(post,postForm.getTopicIds());
             return Response.success();
             return Response.success();
         } catch (ProjectServiceException e) {
         } catch (ProjectServiceException e) {
             e.printStackTrace();
             e.printStackTrace();

src/main/java/cn/meteor/beyondclouds/modules/post/form/PostForm.java

@@ -26,4 +26,7 @@ public class PostForm {
 
 
     @NullOrNotBlank(message = "请传入有效的视频内容")
     @NullOrNotBlank(message = "请传入有效的视频内容")
     private String video;
     private String video;
+
+    @ElementNotBlank(message = "话题Id不可为空")
+    private List<String> topicIds;
 }
 }

src/main/java/cn/meteor/beyondclouds/modules/post/service/IPostService.java

@@ -6,6 +6,8 @@ import cn.meteor.beyondclouds.modules.project.exception.ProjectServiceException;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.baomidou.mybatisplus.extension.service.IService;
 
 
+import java.util.List;
+
 /**
 /**
  * <p>
  * <p>
  * 动态表 服务类
  * 动态表 服务类
@@ -19,8 +21,10 @@ public interface IPostService extends IService<Post> {
     /**
     /**
      * 发布动态
      * 发布动态
      * @param post
      * @param post
+     * @param topicIds
+     * @throws ProjectServiceException
      */
      */
-    void publishPost(Post post) throws ProjectServiceException;
+    void publishPost(Post post , List<String> topicIds) throws ProjectServiceException;
 
 
     /**
     /**
      * 删除动态
      * 删除动态

src/main/java/cn/meteor/beyondclouds/modules/post/service/impl/PostServiceImpl.java

@@ -9,6 +9,11 @@ import cn.meteor.beyondclouds.modules.post.mapper.PostMapper;
 import cn.meteor.beyondclouds.modules.post.service.IPostService;
 import cn.meteor.beyondclouds.modules.post.service.IPostService;
 import cn.meteor.beyondclouds.modules.project.exception.ProjectServiceException;
 import cn.meteor.beyondclouds.modules.project.exception.ProjectServiceException;
 import cn.meteor.beyondclouds.modules.queue.service.IMessageQueueService;
 import cn.meteor.beyondclouds.modules.queue.service.IMessageQueueService;
+import cn.meteor.beyondclouds.modules.topic.entity.Topic;
+import cn.meteor.beyondclouds.modules.topic.entity.TopicReference;
+import cn.meteor.beyondclouds.modules.topic.enums.TopicReferenceType;
+import cn.meteor.beyondclouds.modules.topic.service.ITopicReferenceService;
+import cn.meteor.beyondclouds.modules.topic.service.ITopicService;
 import cn.meteor.beyondclouds.modules.user.entity.User;
 import cn.meteor.beyondclouds.modules.user.entity.User;
 import cn.meteor.beyondclouds.modules.user.service.IUserService;
 import cn.meteor.beyondclouds.modules.user.service.IUserService;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
@@ -18,6 +23,11 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.stereotype.Service;
+import org.springframework.util.CollectionUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
 
 
 /**
 /**
  * <p>
  * <p>
@@ -34,6 +44,20 @@ public class PostServiceImpl extends ServiceImpl<PostMapper, Post> implements IP
 
 
     private IMessageQueueService messageQueueService;
     private IMessageQueueService messageQueueService;
 
 
+    private ITopicService topicService;
+
+    private ITopicReferenceService topicReferenceService;
+
+    @Autowired
+    public void setTopicReferenceService(ITopicReferenceService topicReferenceService) {
+        this.topicReferenceService = topicReferenceService;
+    }
+
+    @Autowired
+    public void setTopicService(ITopicService topicService) {
+        this.topicService = topicService;
+    }
+
     @Autowired
     @Autowired
     public void setUserService(IUserService userService) {
     public void setUserService(IUserService userService) {
         this.userService = userService;
         this.userService = userService;
@@ -50,7 +74,7 @@ public class PostServiceImpl extends ServiceImpl<PostMapper, Post> implements IP
      * @throws ProjectServiceException
      * @throws ProjectServiceException
      */
      */
     @Override
     @Override
-    public void publishPost(Post post) throws ProjectServiceException {
+    public void publishPost(Post post , List<String> topicIds) throws ProjectServiceException {
         //1.判断是否视频和图片都传了
         //1.判断是否视频和图片都传了
         if (null != post.getPictures() && null != post.getVideo()) {
         if (null != post.getPictures() && null != post.getVideo()) {
             throw new ProjectServiceException(PostErrorCode.NOT_APPEAR_SAME_TIME);
             throw new ProjectServiceException(PostErrorCode.NOT_APPEAR_SAME_TIME);
@@ -79,6 +103,26 @@ public class PostServiceImpl extends ServiceImpl<PostMapper, Post> implements IP
         //2.保存动态
         //2.保存动态
         save(post);
         save(post);
 
 
+        //处理话题引用
+        if (!CollectionUtils.isEmpty(topicIds)) {
+            // 获取要引用的话题，不正确的话题ID会被自动过滤
+            List<String> existsTopicIds = topicService.listByIds(topicIds).stream().map(Topic::getTopicId).collect(Collectors.toList());
+            if (!CollectionUtils.isEmpty(existsTopicIds)) {
+                List<TopicReference> topicReferences = new ArrayList<>();
+                for (String topicId : existsTopicIds) {
+                    TopicReference topicReference = new TopicReference();
+                    topicReference.setTopicId(topicId);
+                    topicReference.setReferencerId(post.getPostId());
+                    topicReference.setReferencerType(TopicReferenceType.POST_REFERENCE.getType());
+                    topicReferences.add(topicReference);
+                }
+                // 批量保存
+                topicReferenceService.saveBatch(topicReferences);
+                // 新增话题引用次数
+                topicService.increaseReferenceCountBatch(existsTopicIds, 1);
+            }
+        }
+        //发送消息到消息队列
         messageQueueService.sendDataItemChangeMessage(DataItemChangeMessage.addMessage(DataItemType.POST, post.getPostId(), post.getUserId()));
         messageQueueService.sendDataItemChangeMessage(DataItemChangeMessage.addMessage(DataItemType.POST, post.getPostId(), post.getUserId()));
 
 
     }
     }
@@ -103,6 +147,16 @@ public class PostServiceImpl extends ServiceImpl<PostMapper, Post> implements IP
         //2.删除动态
         //2.删除动态
         removeById(postId);
         removeById(postId);
 
 
+        //3.删除动态里的话题引用
+        QueryWrapper<TopicReference> topicReferenceQueryWrapper = new QueryWrapper<>();
+        topicReferenceQueryWrapper.eq("referencer_id", postId);
+        //所有的话题引用减1
+        List<String> existsTopicIds = topicReferenceService.list(topicReferenceQueryWrapper).stream().map(TopicReference::getTopicId).collect(Collectors.toList());
+        topicService.decreaseReferenceCountBatch(existsTopicIds, 1);
+
+        topicReferenceService.remove(topicReferenceQueryWrapper);
+
+        //发送消息到消息队列
         messageQueueService.sendDataItemChangeMessage(DataItemChangeMessage.deleteMessage(DataItemType.POST, post.getPostId(), userId));
         messageQueueService.sendDataItemChangeMessage(DataItemChangeMessage.deleteMessage(DataItemType.POST, post.getPostId(), userId));
 
 
     }
     }