20 lines
617 B
Ruby
20 lines
617 B
Ruby
# frozen_string_literal: true
|
|
|
|
class HtmlValidator < ActiveModel::EachValidator
|
|
ERROR_RE = /Opening and ending tag mismatch|Unexpected end tag/
|
|
|
|
def validate_each(record, attribute, value)
|
|
return if value.blank?
|
|
|
|
errors = html_errors(value)
|
|
|
|
record.errors.add(attribute, I18n.t('html_validator.invalid_markup', error: errors.first.to_s)) unless errors.empty?
|
|
end
|
|
|
|
private
|
|
|
|
def html_errors(str)
|
|
fragment = Nokogiri::HTML.fragment(options[:wrap_with] ? "<#{options[:wrap_with]}>#{str}</#{options[:wrap_with]}>" : str)
|
|
fragment.errors.select { |error| ERROR_RE =~ error.message }
|
|
end
|
|
end
|