我正在使用以下Hibernate Query Language(HQL)查询从多个表中获取数据
method:
const selectedCollegeHandler = (event, data) => {
setSelectedCollege((prevState) => {
return data.value
});
}
如果帖子中包含多个图像和标签,则同一消息会多次显示,而我只想显示一次。
更新时
( " select distinct post, "
+ "from Post as post "
+ "left join fetch post.user as postUser "
+ "left join fetch post.postTags as tags "
+ "left join fetch post.postMessages as postmessage "
+ "left join fetch postmessage.postImageses as postImages "
+ "where post.id=:msgId "
+ "order by post.adddate desc")
( " select distinct post, "
+ "from Post as post "
+ "left join fetch post.user as postUser "
+ "left join fetch post.postTags as tags "
+ "left join fetch post.postMessages as postmessage "
+ "left join fetch postmessage.postImageses as postImages "
+ "where post.id=:msgId "
+"order by post.id "
+ "order by post.adddate desc")
仅显示一张图片以解决此问题