class ReeDao::PgArray

def db_dump(value, role: nil, fields_filters: nil)
  if !value.is_a?(Array)
    raise ReeMapper::TypeError.new("should be an array, got `#{truncate(value.inspect)}`")
  end
  if subject.fields_filter
    fields_filters = if fields_filters
      fields_filters + [subject.fields_filter]
    else
      [subject.fields_filter]
    end
  end
  value = value.map.with_index do |item, idx|
    subject.type.db_dump(item, role:, fields_filters:)
  rescue ReeMapper::ErrorWithLocation => e
    e.location ||= subject.location
    e.prepend_field_name(idx.to_s)
    raise e
  end
  if value.empty?
    "{}"
  else
    Sequel.pg_array(value)
  end
end

def db_load(value, role: nil, fields_filters: nil)
  if !value.is_a?(Sequel::Postgres::PGArray)
    raise ReeMapper::TypeError.new("should be a Sequel::Postgres::PGArray, got `#{truncate(value.inspect)}`")
  end
  if subject.fields_filter
    fields_filters = if fields_filters
      fields_filters + [subject.fields_filter]
    else
      [subject.fields_filter]
    end
  end
  value.map.with_index do |item, idx|
    subject.type.db_load(item, role:, fields_filters:)
  rescue ReeMapper::ErrorWithLocation => e
    e.location ||= subject.location
    e.prepend_field_name(idx.to_s)
    raise e
  end
end