1、为发布的作品添加标签

2、修改标签
3、不允许用户重复参与活动
4、查询所有参与活动的作品

src/main/java/com/ai/da/mapper/primary/PortfolioMapper.java

@@ -3,6 +3,10 @@ package com.ai.da.mapper.primary;
 import com.ai.da.common.config.mybatis.plus.CommonMapper;
 import com.ai.da.mapper.primary.entity.Portfolio;
 
+import java.util.List;
+
 public interface PortfolioMapper extends CommonMapper<Portfolio> {
     Portfolio getByIdAll(Long originalPortfolioId);
+
+    List<Portfolio> getByTag(Long accountId, String tagName);
 }

src/main/java/com/ai/da/mapper/primary/PortfolioTagsMapper.java

@@ -2,10 +2,14 @@ package com.ai.da.mapper.primary;
 
 import com.ai.da.common.config.mybatis.plus.CommonMapper;
 import com.ai.da.mapper.primary.entity.PortfolioTags;
-import com.ai.da.mapper.primary.entity.Tags;
 
+import java.time.LocalDateTime;
 
 public interface PortfolioTagsMapper extends CommonMapper<PortfolioTags> {
 
+    void deleteByPortfolioId(Long portfolioId);
+
+    // portfolioId与tagId建立唯一约束， 如果组合 portfolio_id 和 tag_id 已经存在，插入操作会被忽略。
+    void insertIgnore(Long portfolioId, Long tagId, LocalDateTime time);
 
 }

src/main/java/com/ai/da/mapper/primary/TagsMapper.java

@@ -2,6 +2,7 @@ package com.ai.da.mapper.primary;
 
 import com.ai.da.common.config.mybatis.plus.CommonMapper;
 import com.ai.da.mapper.primary.entity.Tags;
+import com.ai.da.model.dto.TagsDTO;
 
 import java.util.List;
 import java.util.Map;
@@ -11,4 +12,6 @@ public interface TagsMapper extends CommonMapper<Tags> {
 
     List<Map<String, String>> getMatchingTags(String userInput);
 
+    List<TagsDTO> getTagByPortfolioId(Long portfolioId);
+
 }