Rails validation - inclusion

Question

I am trying to add a validation to prevent the user from entering a url that does not include the word 'mywebsite' in it.

validates :url, inclusion: { in: %w(mywebsite), message: "Must be a mywebsite.com subdomain" }

The problem with the above code is that it will only accept 'mywebsite' as a valid argument, while I'd like it to accept any argument which includes the word mywebsite in it. Example: mywebsite.com/something

How should I approach this?

Answer 1

Thanks for the guidance. Here is a working solution to my question:

validates_format_of :url, :with => /mywbesite(.*)/