class StringSettingValidator def initialize(opts={}) @opts = opts @regex = Regexp.new(opts[:regex]) if opts[:regex] end def valid_value?(val) return true if !val.present? if (@opts[:min] and @opts[:min].to_i > val.length) || (@opts[:max] and @opts[:max].to_i < val.length) @length_fail = true return false end if @regex and !(val =~ @regex) @regex_fail = true return false end true end def error_message if @regex_fail I18n.t('site_settings.errors.regex_mismatch') elsif @length_fail if @opts[:min] && @opts[:max] I18n.t('site_settings.errors.invalid_string_min_max', {min: @opts[:min], max: @opts[:max]}) elsif @opts[:min] I18n.t('site_settings.errors.invalid_string_min', {min: @opts[:min]}) else I18n.t('site_settings.errors.invalid_string_max', {max: @opts[:max]}) end else I18n.t('site_settings.errors.invalid_string') end end end