Rails 3 validate IPv4 and IPv6 format

Question

I know the validation format for IPv4 and IPv6. But not sure how I can combine them so atleast one format should be true. Here is my validation ``` validates :src_ip_addr, :presence => true, :uniqueness => true, :format => { :with => Resolv::IPv4::Regex, :message => "Not an valid IPv4 format"} validates :src_ip_addr, :presence => true, :uniqueness => true, :format => { :with => Resolv::IPv6::Regex, :message => "Not an valid IPv6 format"} ``` How I can combine them so if one format is correct then validation should work. Should fail only if ipv4 and ipv6 format is not correct. Thanks.

Accepted Answer

You can also combine them with `Regexp.union`:

```
:format => { :with => Regexp.union(Resolv::IPv4::Regex, Resolv::IPv6::Regex) ...
```

Rails 3 validate IPv4 and IPv6 format

Solution

Problem