mastodon/app/models/tag.rb

34 lines
814 B
Ruby
Raw Normal View History

# frozen_string_literal: true
2016-11-04 11:12:59 -07:00
class Tag < ApplicationRecord
2016-11-05 07:20:05 -07:00
has_and_belongs_to_many :statuses
HASHTAG_RE = /(?:^|[^\/\)\w])#([[:word:]_]*[[:alpha:]_][[:word:]_]*)/i
2016-11-04 11:12:59 -07:00
validates :name, presence: true, uniqueness: true
2016-11-05 07:20:05 -07:00
def to_param
name
end
class << self
def search_for(terms, limit = 5)
terms = Arel.sql(connection.quote(terms.gsub(/['?\\:]/, ' ')))
textsearch = 'to_tsvector(\'simple\', tags.name)'
query = 'to_tsquery(\'simple\', \'\'\' \' || ' + terms + ' || \' \'\'\' || \':*\')'
sql = <<-SQL.squish
SELECT
tags.*,
ts_rank_cd(#{textsearch}, #{query}) AS rank
FROM tags
WHERE #{query} @@ #{textsearch}
ORDER BY rank DESC
LIMIT ?
SQL
Tag.find_by_sql([sql, limit])
end
end
2016-11-04 11:12:59 -07:00
end