Rails 3 - validation rules with regex

Question

With this rule

validates_format_of :numbers, :with => /^[0-9]{15}$/, :message => "error message"

will be the item :numbers valid only with the regex above. But is possible to set, that the item :numbers could be send as an empty or like a 15 digits? I can't find the right combination of validation rules.

lucapette · Accepted Answer · 2011-12-03 14:15:53Z

2

Just add the allow_blank option like:

validates_format_of :numbers, :with => /^[0-9]{15}$/, :allow_blank => true

See docs for further information.

answered Dec 3, 2011 at 14:15

lucapette

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