[英]sortable tag lists, in terms of popularity?
I want to implement a tag list, for instance, top ten tags used in the website. 我想实现一个标签列表,例如,网站中使用的前十个标签。 Are there any tutorials or articles that can help me to create this! 是否有任何教程或文章可以帮助我实现这一目标!
For example: 例如:
#topic (200 mentions)
#topic (150 mentions)
#topic (50 mentions) ....
and so on.. 等等..
i assume you have a table tags
, posts
and posts_tags
(you haven't told us what you want to tag …) to associate them 我假设您有一个表格tags
, posts
和posts_tags
(您尚未告诉我们要标记的内容...)来关联它们
you then want to count the number of times a tag was used: 然后,您要计算使用标签的次数:
select count(*)
from `posts_tags` pt
inner join `tags` t
on pt.tagid = t.tagid
group by t.tagid
order by count(*) desc
limit 10
Without more information, this is strictly a guess given the lack of information, but here is the query that should do it if you customize it to your system. 如果没有更多信息,这完全是猜测,因为缺少信息,但是如果您根据系统自定义信息,这就是应该执行的查询。
SELECT tag, (
SELECT count(*)
FROM mentions
WHERE tags.id = mentions.tags_id
) as count
FROM tags
ORDER BY count DESC
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