openstreetmap-website/app/validators/leading_whitespace_validator.rb

5 lines
233 B
Ruby

class LeadingWhitespaceValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
record.errors[attribute] << (options[:message] || I18n.t("validations.leading_whitespace")) if value =~ /\A\s/
end
end