diff options
Diffstat (limited to 'app/validators')
-rw-r--r-- | app/validators/url_validator.rb | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/app/validators/url_validator.rb b/app/validators/url_validator.rb new file mode 100644 index 00000000000..2848b9cd33d --- /dev/null +++ b/app/validators/url_validator.rb @@ -0,0 +1,36 @@ +# UrlValidator +# +# Custom validator for URLs. +# +# By default, only URLs for the HTTP(S) protocols will be considered valid. +# Provide a `:protocols` option to configure accepted protocols. +# +# Example: +# +# class User < ActiveRecord::Base +# validates :personal_url, url: true +# +# validates :ftp_url, url: { protocols: %w(ftp) } +# +# validates :git_url, url: { protocols: %w(http https ssh git) } +# end +# +class UrlValidator < ActiveModel::EachValidator + def validate_each(record, attribute, value) + unless valid_url?(value) + record.errors.add(attribute, "must be a valid URL") + end + end + + private + + def default_options + @default_options ||= { protocols: %w(http https) } + end + + def valid_url?(value) + options = default_options.merge(self.options) + + value =~ /\A#{URI.regexp(options[:protocols])}\z/ + end +end |