【Ruby on Rails】Rails APIモード キーワード複数検索機能を配列と繰り返し処理を使って実装してみた。 - Qiita

def keyword if params[:keyword] keywords = params[:keyword].split(/[[:blank:]]+/).select(&:present?) keywords.each do |keyword| offices = Office.where('name LIKE ? OR address LIKE ? OR near_station LIKE ? OR introduction LIKE ? OR company LIKE ?',"%#{keyword}%", "%# {keyword}%", "%#{keyword}%", "%#{keyword}%", "%#{keyword}%") end else pagy, offices = pagy(Office.all) pagy_headers_merge(pagy) end r