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Add more accurate hashtag search (#11579)

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* Add more accurate hashtag search

Using ElasticSearch to index hashtags with edge n-grams and score
them by usage within the last 7 days since last activity. Only
hashtags that have been reviewed and are listable can appear in
searches, unless they match the query exactly

* Fix search analyzer dropping non-ascii characters
This commit is contained in:
Eugen Rochko 2019-08-18 03:45:51 +02:00 • committed by GitHub
parent 3a77090d01
commit cc0a55cf9a
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10 changed files with 149 additions and 13 deletions
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4
spec/models/tag_spec.rb
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@ -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", score: 1)
tag = Fabricate(:tag, name: "match", score: 1)
similar_tag = Fabricate(:tag, name: "matchlater", reviewed_at: Time.now.utc)
tag = Fabricate(:tag, name: "match", reviewed_at: Time.now.utc)
results = Tag.search_for("match")