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
master
Eugen Rochko 5 years ago committed by GitHub
parent ff789a751a
commit 92de439c04
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  1. 6
      app/models/tag.rb
  2. 4
      spec/models/tag_spec.rb

@ -76,9 +76,11 @@ class Tag < ApplicationRecord
end end
def search_for(term, limit = 5, offset = 0) 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')) .order(Arel.sql('length(name) ASC, score DESC, name ASC'))
.limit(limit) .limit(limit)
.offset(offset) .offset(offset)

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

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