Change hashtag search to only return results that have trended in the past (#11448)

* Change hashtag search to only return results that have trended in the past

A way to eliminate typos and other one-off "junk" results

* Fix excluding exact matches that don't have a score

* Fix tests
This commit is contained in:
Eugen Rochko 2019-07-30 20:29:50 +02:00 committed by GitHub
parent ff789a751a
commit 92de439c04
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2 changed files with 6 additions and 4 deletions

View file

@ -76,9 +76,11 @@ class Tag < ApplicationRecord
end
def search_for(term, limit = 5, offset = 0)
pattern = sanitize_sql_like(normalize(term.strip)) + '%'
normalized_term = normalize(term.strip).mb_chars.downcase.to_s
pattern = sanitize_sql_like(normalized_term) + '%'
Tag.where(arel_table[:name].lower.matches(pattern.mb_chars.downcase.to_s))
Tag.where(arel_table[:name].lower.matches(pattern))
.where(arel_table[:score].gt(0).or(arel_table[:name].lower.eq(normalized_term)))
.order(Arel.sql('length(name) ASC, score DESC, name ASC'))
.limit(limit)
.offset(offset)

View file

@ -136,8 +136,8 @@ RSpec.describe Tag, type: :model do
end
it 'finds the exact matching tag as the first item' do
similar_tag = Fabricate(:tag, name: "matchlater")
tag = Fabricate(:tag, name: "match")
similar_tag = Fabricate(:tag, name: "matchlater", score: 1)
tag = Fabricate(:tag, name: "match", score: 1)
results = Tag.search_for("match")