Best solution I had seen is posted over here:
http://transfs.com/devblog/2009/01/21/hosting-multiple-domains-from-a-single-rails-app/
I was developing recently such application and it works perfectly with
Rails 2.3.5
Besides of configuring VirtualHost, everything focuses on extending
functionality of routing. So in new initializer you put:
module ActionController
module Routing
class RouteSet
def extract_request_environment(request)
env = { :method => request.method }
env[:domain] = request.domain if request.domain
env[:host] = request.host if request.host
env
end
end
class Route
alias_method :old_recognition_conditions, :recognition_conditions
def recognition_conditions
result = old_recognition_conditions
result << "conditions[:domain] === env[:domain]" if
conditions[:domain]
result << "conditions[:host] === env[:host]" if
conditions[:host]
result
end
end
end
end
And at the router itself:
map.connect '', :controller => 'true_cost_calculator', :action => 'new',
:conditions=>{ :domain=>'truecostofcredit.com' }
map.connect '', :controller => 'another_cost_calculator', :action =>
'index', :conditions=>{ :domain=>'anothercost.com' }
Sometimes :host is useful too
Regards
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