Contents

# frozen_string_literal: true

class CoordinateValidator < ActiveModel::EachValidator

  BOUNDARIES ||= %i[coordinate latitude longitude].freeze

  # rubocop:disable Metrics/LineLength
  def validate_each(record, attribute, value)
    boundary = options[:boundary] || :coordinate
    unless BOUNDARIES.include?(boundary)
      raise ArgumentError,
            "Unknown boundary: #{boundary.inspect}. Valid boundaries are: #{BOUNDARIES.map(&:inspect).join(', ')}"
    end

    return if valid?(value, options)

    record.errors[attribute] <<
      (options[:message] || I18n.t("active_validation.errors.messages.coordinate.#{boundary}"))
  end
  # rubocop:enable Metrics/LineLength

  private

  def valid_latitude?(value)
    value >= -90.0 && value <= 90.0
  end

  def valid_length?(value)
    value.present?
  end

  def valid_longitude?(value)
    value >= -180.0 && value <= 180.0
  end

  def valid_boundary?(value, options)
    case options[:boundary]
    when :latitude
      valid_latitude?(value)
    when :longitude
      valid_longitude?(value)
    else
      valid_latitude?(value.first) &&
        valid_longitude?(value.last)
    end
  end

  def valid?(value, options)
    valid_length?(value) &&
      valid_boundary?(value, options)
  end

end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
active_validation-5.1.0	lib/active_validation/validators/coordinate_validator.rb