闭社主体 forked from https://github.com/tootsuite/mastodon
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class FollowSuggestion
def self.get(for_account_id)
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'].first) unless account_ids.empty?
end
end