10 lines
506 B
Ruby
10 lines
506 B
Ruby
class FollowSuggestion
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def self.get(for_account_id, limit = 6)
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neo = Neography::Rest.new
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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)
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Account.where(id: account_ids['data'].map(&:first)).limit(limit) unless account_ids.empty?
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rescue Neography::NeographyError, Excon::Error::Socket => e
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Rails.logger.error e
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[]
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end
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end
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