class FollowSuggestion def self.get(for_account_id, limit = 6) neo = Neography::Rest.new account_ids = neo.execute_query('START a=node:account_index(Account={id}) MATCH (a)-[:follows]->(b)-[:follows]->(c) WHERE a <> c AND NOT (a)-[:follows]->(c) RETURN DISTINCT c.account_id', id: for_account_id) Account.where(id: account_ids['data'].map(&:first)).limit(limit) unless account_ids.empty? rescue Neography::NeographyError, Excon::Error::Socket => e Rails.logger.error e [] end end