Continuing the discussion from Tags: category restrictions, tag groups, relationships: I’m interested in building a tag union capability that would mimic how tag intersections are currently implemented (Tag intersections page): essentially the same result as intersections (the default category/Latest view), but doing an OR on multiple tags rather than an AND. I would appreciate any suggestions as a new Discourse developer. My thoughts (so far) are as follows: Searching on multiple tags via the search page essentially provides tag-union functionality (Does multiple tag search support AND vs OR?). The problem is that I don’t want the search results view – I want the default category page. Could search results be redirected to accomplish this? If search results can’t be redirected, I’m open to attempting a /tags/union/ route (and have been looking into how intersection works). I would prefer to do this via plugin, but I am concerned that that is not something that could currently be accomplished via a plugin. Any suggestions here would be appreciated. If there is sufficient user interest to add a tag-union capability into the Discourse core, I’d be willing to do it and submit a PR, but I’m hoping to find an alternative. Thanks in advance.

[图片] ebadgley: If there is sufficient user interest to add a tag-union capability into the Discourse core, I’d be willing to do it and submit a PR, but I’m hoping to find an alternative. Thanks in advance. Not sure this counts as sufficient user interest, but intending to revive this discussion to see if users/team are interested. Thoughts? @daniel

Has there been any updates on this? It would be very useful to have a /tags/union route.

We have it now at least in route form: https://meta.discourse.org/?tags[]=screen-reader&tags[]=accessibility Long term we are thinking of building a UI for cleaner filtering and sorting of topic lists.

I get an empty topic list when clicking the url provided: [image] Could there be a problem?

Yeah our Ember router needs to learn about this route (cc @david) Will work if you directly navigate to the URL

Do I need to execute ./launcher rebuild app to have this update on my self hosted instance?

I would wait till we fix the client side routing

[图片] Sam Saffron: Yeah our Ember router needs to learn about this route Building queryParam arrays using the paramName[] syntax is a backend-framework-specific thing, and I don’t think it’s supported natively by Ember. We might be able to make it work, but I just had a quick look at the server-side implementation of the tags filter and it looks like we also support a space-separated list. So, this link should already work without a full page reload: https://meta.discourse.org/?tags=screen-reader+accessibility

[图片] David Taylor: I just had a quick look at the server-side implementation of the tags filter and it looks like we also support a space-separated list. This is very neat. However, the page does not keep the restrictions when a category is selected from top left. For pages with single tags, this works as expected. For instance, If I am at /tag/tag1 and pick site-feedback from top left. It shows /tags/c/site-feedback/2/tag1. With /?tags=tag1+tag2, it just redirects me to /c/site-feedback/2 Is it possible to have this functionality? I guess this was requested in these two topics as well: [图片] URL syntax for multiple tags within a category Feature It would be nice to be able to filter topics based on multiple tags within a category using the URL syntax currently available for multiple tags filtering: The output page from this URL filtering looks a lot sleeker than the output from an advanced search. [图片] Is it possible to filter a category by multiple tags? Support Currently we can do this: https://meta.discourse.org/c/bug?tags=admin But could we do this? https://meta.discourse.org/c/bug?tags=admin,email Where it filters topics in that category containing both tags? (If it’s not possible, could it be added please?)

That kind of thing isn’t supported at the moment, but it’s something we’re thinking about improving in the long-term [图片] Sam Saffron: Long term we are thinking of building a UI for cleaner filtering and sorting of topic lists.

Tag-union implementation?

Development

david (David Taylor) 2022 年8 月 29 日 13:57 11

目前不支持此类操作，但我们正在考虑在长期内进行改进。

话题		回复	浏览量
Feature request: Tag union URLs Feature	5	847	2023 年3 月 7 日
Streamline Tag Intersections Feature search , tags	4	377	2025 年6 月 4 日
Tag union URLs Product Support	1	434	2022 年9 月 13 日
URL syntax for multiple tags within a category Feature	0	1462	2020 年11 月 12 日
Tag intersections page Feature pr-welcome	16	4454	2022 年8 月 31 日

Tag-union implementation?

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