Rails: redirect to current path but different subdomain

Question

I think this should be fairly easy but I'm not familiar with how it's done...

How do you write a before filter that would check if the current request is for certain subdomains, and if so redirect it to the same url but on a different subdomain?

Ie: blog.myapp.com/posts/1 is fine but blog.myapp.com/products/123 redirects to www.myapp.com/products/123.

I was thinking something like...

class ApplicationController < ActionController::Base
  before_filter :ensure_domain

  protected
  def ensure_domain
    if request.subdomain == 'blog' && controller_name != 'posts'
      redirect_to # the same url but at the 'www' subdomain...
    end
  end
end

How do you write that redirect?

score 16 · Accepted Answer · edited Dec 05 '22 at 14:52

16

ActionController::Redirecting#redirect_to allows you to pass an absolute URL, so the easiest thing to do would be to pass it one with something like:

redirect_to request.url.sub('blog', 'www')

edited Dec 05 '22 at 14:52

Jan Klimo

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answered May 15 '12 at 04:50

Todd A. Jacobs

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7

Doh! The sub method is just the plain old ruby sub method... ok so after further experimentation this works but I have to use more of a regex to take care of it. The `request.url` object gives me enough to figure out the rest though, thanks! – Andrew May 15 '12 at 20:22

Rick · Answer 2 · 2018-06-20T18:33:28.627

7

A simple choice to redirect from subdomain to subdomain would be the following

redirect_to subdomain: 'www', :controller => 'www', :action => "index"

This would be called on a domain name for example foo.apple.com would then go to www.apple.com

edited Jun 20 '18 at 18:33

answered Oct 19 '14 at 02:55

Rick

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score 2 · Answer 3 · answered Mar 31 '20 at 15:52

2

An even simpler option without the need to do a string sub or specify the controller or action would be to use

redirect_to url_for(subdomain: 'www', only_path: false)

answered Mar 31 '20 at 15:52

Tim Krins

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score 1 · Answer 4 · answered Jan 05 '21 at 14:00

1

A simple solution for this is

redirect_to dummy_rul(subdomain: 'subdomain')

Example:

redirect_to projects_url(subdomain: 'edv') it will redirect on below url

"http://edv.maindomain.com/projects"

"edv" is my subdomain

answered Jan 05 '21 at 14:00

Gaurav Patil

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Rails: redirect to current path but different subdomain

4 Answers4

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