discourse/lib/validators/string_setting_validator.rb

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class StringSettingValidator
def initialize(opts={})
@opts = opts
@regex = Regexp.new(opts[:regex]) if opts[:regex]
@regex_error = opts[:regex_error] || 'site_settings.errors.regex_mismatch'
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(@regex_error)
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