class AwsRecord::Generators::Base

def parse_gsis!
  @gsis = (options['gsi'] || []).map do |raw_idx|
    begin
      idx = SecondaryIndex.parse(raw_idx)
      attributes = self.attributes.select { |attr| attr.name == idx.hash_key}
      if attributes.empty?
        @parse_errors << ArgumentError.new("Could not find attribute #{idx.hash_key} for gsi #{idx.name} hkey")
        next
      end
      if idx.range_key
        attributes = self.attributes.select { |attr| attr.name == idx.range_key}
        if attributes.empty?
          @parse_errors << ArgumentError.new("Could not find attribute #{idx.range_key} for gsi #{idx.name} rkey")
          next
        end
      end
      idx
    rescue ArgumentError => e
      @parse_errors << e
      next
    end
  end
  @gsis = @gsis.compact
end