Contents

module ActiveModel
  module Validations
    class DateValidator < ActiveModel::EachValidator
      def validate_each(record, attr_name, value)
        before_type_cast = "#{attr_name}_before_type_cast"
        raw_value = record.send(before_type_cast) if record.respond_to?(before_type_cast.to_sym)
        #puts "raw_value=#{raw_value.inspect} (#{raw_value.class}), value=#{value.inspect} (#{value.class})"
        raw_value ||= value

        if raw_value.present? and !value.is_a?(Date)
          record.errors.add attr_name, :date_invalid,
            expected_format: expected_format
          return # don't want it to show *both* errors (:date_invalid and :blank)
        end

        if options[:required] && value.blank?
          message = (options[:required] == true ? :blank : options[:required])
          record.errors.add attr_name, message
        end
      end

    private
      # Note that the format given here only affects the error message that you show your users. It
      # is up to you to actually change your model to understand or convert from values supplied by
      # users in a particular format.
      # Some formats that ActiveRecord already understands include 'yyyy-mm-dd' and 'dd/mm/yyyy'.
      def expected_format
        options[:expected_format] || 'yyyy-mm-dd'
      end
    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
activemodel-validators-3.0.1	lib/activemodel-validators/date_validator.rb
activemodel-validators-3.0.0	lib/activemodel-validators/date_validator.rb
activemodel-validators-2.0.0	lib/activemodel-validators/date_validator.rb
activemodel-validators-1.2.0	lib/activemodel-validators/date_validator.rb
activemodel-validators-1.1.0	lib/activemodel-validators/date_validator.rb