Method: NoBrainer::Criteria::Where::IndexFinder#find_strategy_compound

Defined in:
lib/no_brainer/criteria/where.rb

#find_strategy_compound ⇒ Object 



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# File 'lib/no_brainer/criteria/where.rb', line 438

def find_strategy_compound
  clauses = Hash[get_candidate_clauses(:eq).map { |c| [c.key_path, c] }]
  return nil unless clauses.present?

  get_usable_indexes(:kind => :compound, :geo => false, :multi => false).each do |index|
    indexed_clauses = index.what.map { |field| clauses[[field]] }
    next unless indexed_clauses.all? { |c| c.try(:compatible_with_index?, index) }
    return IndexStrategy.new(self, ast, indexed_clauses, index, :get_all, [indexed_clauses.map(&:value)])
  end
  return nil
end