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I am using Ruby on Rails 3 and I would like to set some global variable to use those everywhere in my application. In particular, the domain name.
If, for example, my website URL is
http://subname.domain.com
I would like to set or retrieve the subname.domain.com value in order to use that in my application like this
request_uri = "http://#{sub_domain_name}"
Where and how I have to state\initialize the sub_domain_name variable or other variables at all?
Application controller is one place where you can set global variable. Just call a before_filter method in the landing function of the application.
If your question is specific to retrieving domain name of your application, you can use
request.env['HTTP_HOST'].Thanks….