Sinônimos de tags não funcionando na busca

Eviepayne · Abril 21, 2025, 1:08am

Ao pesquisar no meu fórum com tags:tag1
se tag1 for um sinônimo para tag-one, não obtenho resultados e a postagem com tag-one não é exibida.

Eviepayne · Abril 22, 2025, 1:16pm

Acredito que este provavelmente não seja o comportamento pretendido, então vou rotulá-lo como um bug.

sam · Abril 23, 2025, 5:30am

Entendo, provavelmente deveríamos adicionar tratamento para sinônimos aqui, concordo.

Colocando um pr-welcome nisso caso a comunidade queira ajudar. A busca é extremamente autocontida, escrever testes para ela deve ser muito simples.

Moin · Fevereiro 12, 2026, 9:32am

Corrigido

Todos estes funcionam agora:
Pesquisar por tag:howto
Pesquisar por tag:how-to
Pesquisar por #howto
Pesquisar por #how-to

github.com/discourse/discourse

FIX: Resolve tag synonyms in search and filter queries (#37628)

main ← fix/tag-synonyms-in-search

merged 07:57AM - 09 Feb 26 UTC

tgxworld

+109 -24

What is the problem? Discourse allows admins to mark a tag as a synonym of anot…her tag. For example, "brunch" can be made a synonym of "lunch". When this happens, all topics tagged with "brunch" are automatically retagged with "lunch", and the `tags.target_tag_id` column on the synonym tag record is set to point to the target tag. However, several code paths did not account for synonyms: 1. **Search:** `Search#search_tags` and the hashtag advanced filter did not resolve synonyms. When a user searched using a synonym name (e.g. `tags:brunch`, `tags:brunch+eggs`, or `#brunch`), no results were returned because: - The `tags:` comma path queries `topic_tags` joined with `tags` by name, but topics are tagged with the target tag "lunch", not the synonym "brunch". - The `tags:` plus path aggregates tag names per topic into a tsvector and matches against the searched name, but the aggregated names are target tag names, so "brunch" never matches. - The `#` hashtag path picks the synonym tag's own `id` and queries `topic_tags` by that ID, but topics store the target tag's ID. 2. **Filter route:** `TopicsFilter#tag_ids_from_tag_names` concatenated both the synonym's own ID and the target tag ID. For match-all queries (e.g. `tag:brunch`), this required a topic to have both IDs in `topic_tags`, which never happens since only the target tag ID is stored. For negation queries (e.g. `-tag:brunch`), the exclusion targeted the synonym ID rather than the target, so no topics were excluded. What is the solution? In `Search#search_tags`, add a synonym resolution step before the existing comma/plus branching logic. It splits the match string into individual tag names, queries for any that are synonyms via `Tag.where_name(tag_names).where.not(target_tag_id: nil)`, builds a name mapping, and replaces synonym names with their target tag names. The replacement operates on the split array elements rather than using substring replacement to avoid corrupting tag names that may contain other tag names as substrings. In the hashtag advanced filter, pick both `:id` and `:target_tag_id` from the tag lookup and prefer `target_tag_id` when present, so the query uses the target tag's ID instead of the synonym's own ID. In `TopicsFilter#tag_ids_from_tag_names`, replace the transpose/concat approach with `.map { |id, target_id| target_id || id }` to resolve each tag to its canonical ID — the target for synonyms, or the tag's own ID otherwise. A partial index on `tags.target_tag_id` is added (scoped to `WHERE target_tag_id IS NOT NULL`) to support efficient synonym lookups.

nat · Fevereiro 14, 2026, 12:00am

Este tópico foi fechado automaticamente após 38 horas. Novas respostas não são mais permitidas.

Tópico		Respostas	Visualizações
Tags confusing (to all or me only) Support tags	4	233	9 de Junho de 2024
Show original tag even if synonym tag is added Support	0	22	2 de Agosto de 2024
Don't show tag synonyms in suggestion lists Feature	6	755	20 de Julho de 2023
Merging tags - Tag Synonyms Feature tags , completed	23	5287	29 de Janeiro de 2020
Add search synonyms Feature	17	6083	1 de Junho de 2023

Sinônimos de tags não funcionando na busca

Tópicos relacionados