43 lines
1.2 KiB
Ruby
43 lines
1.2 KiB
Ruby
class UserSearch
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def self.search term, topic_id = nil
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User.find_by_sql sql(term, topic_id)
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end
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private
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def self.sql term, topic_id
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sql = "select id, username, name, email from users u "
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if topic_id
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sql << "left join (select distinct p.user_id from posts p where topic_id = :topic_id) s on
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s.user_id = u.id "
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end
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if term.present?
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sql << "where username ilike :term_like or
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to_tsvector('simple', name) @@
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to_tsquery('simple',
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regexp_replace(
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regexp_replace(
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cast(plainto_tsquery(:term) as text)
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,'\''(?: |$)', ':*''', 'g'),
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'''', '', 'g')
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) "
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end
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sql << "order by case when username_lower = :term then 0 else 1 end asc, "
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if topic_id
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sql << " case when s.user_id is null then 0 else 1 end desc, "
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end
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sql << " case when last_seen_at is null then 0 else 1 end desc, last_seen_at desc, username asc limit(20)"
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sanitize_sql_array(sql, topic_id: topic_id, term_like: "#{term}%", term: term)
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end
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def self.sanitize_sql_array *args
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ActiveRecord::Base.send(:sanitize_sql_array, args)
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end
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end |