Rails - Oct 2010 - multiple domain names mapping to different rails app URLs

OK, I''m really confused as to how this might work/if it''s
possible or
even if I''m thinking about it right, so I''ll just explain what
I''d like
to do and you can shoot holes in it.

I have an app running that is for properties. Each property has it''s
own
"website" within my app and a user can tweak the content, it works
well,
quite pleased so far.

So the URLs to a property look like this for the root

http://localhost:3000/properties/1/

then

http://localhost:3000/properties/1/full_details
http://localhost:3000/properties/1/price_list

etc.

Is it possible for different urls to point to different pages in
someway.

i.e.

www.chalet-yeti.com  -> http://localhost:3000/properties/1/

www.chalet-yeti.com/full_details  ->
http://localhost:3000/properties/1/full_details

www.apartment-marie.com  -> http://localhost:3000/properties/2/

etc....

Is this possible/advisable/doable in the same rails app (I can''t think
how)? In case it matters the app runs under apache and passenger on my
server.

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Anyone done anything like this before?

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You could do this with Apache
Look at modrewrite

Luis

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Luis Saffie wrote in post #954771:
> You could do this with Apache
> Look at modrewrite
>
> Luis
Thanks that''s great.

Will it have the flexibility to deal with all the sub pages?

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Yes, it will

You''ll want to use wildcards

Luis

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Thanks for this. I''m about to try and implement it, appreciate this is
a
little OT, but has anyone got any more tips for me or even a quick 
example.

Just to be clear, I''m using passenger - will that get in the way or
also
need any configuration?

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Someone''s suggested that actually using virtual hosts maybe a better
way
for me to do this? Thoughts?

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Yeah, for this setup it''s recommended to use virtual hosts along with 
modrewrite

So for example you''d have your site like this defined in your 
apache.conf

<VirtualHost *:80>
  ServerName www.chalet-yeti.com
  RewriteEngine on
  RewriteRule ^(.*)$ http://localhost:3000/properties/1/$1 [R]
</VirtualHost>

<VirtualHost *:80>
  ServerName www.apartment-marie.com
  RewriteEngine on
  RewriteRule ^(.*)$ http://localhost:3000/properties/2/$1 [R]
</VirtualHost>

I didn''t test if this will work but if it doesn''t, it should
be pretty
close. The idea is to have anything that goes to chalet-yeti.com go to 
http://localhost:3000/properties/1 and anything that follows that url, 
will be appended to the redirect.

If this is a bit too complicated, I suggest you do your homework and 
read about modrewrite some more. 
http://httpd.apache.org/docs/2.0/misc/rewriteguide.html

Luis

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Hi Luis,

Thanks for this, I''m getting *really* close I think.

That looks fine and I''ve tried - the redirects are taking effect but 
it''s not quite right.

The localhost:3000 part was just on my Mac, now I''m on the server I
need
to replace that in some way with the root of the rails app - how do I 
refer to it in a virtualhost tag.

Something like this I imagine (obviously not right)...

<VirtualHost *:80>
  ServerName www.apartment-marie.com
  RewriteEngine on
  RewriteRule ^(.*)$ APP_ROOT/properties/2/$1 [R]
</VirtualHost>

I tried simply


<VirtualHost *:80>
  ServerName www.apartment-marie.com
  RewriteEngine on
  RewriteRule ^(.*)$ /properties/2/$1 [R]
</VirtualHost>

But that resulted in a mad loop of redirects !

as did...


<VirtualHost *:80>
  ServerName www.apartment-marie.com
  RewriteEngine on
  RewriteRule ^(.*)$ apartment-marie.com/properties/2/$1 [R]
</VirtualHost>

Just to be clear (if it''s not already), in the end I''m trying
to get the
resulting url to look like this.
http://www.apartment-marie.com/
and
http://www.apartment-marie.com/full_details
with no mention of property in it.

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On Oct 18, 2:43 pm, bingo bob
<li...-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Hi Luis,
>
> Thanks for this, I''m getting *really* close I think.
>
> That looks fine and I''ve tried - the redirects are taking effect
but
> it''s not quite right.
>
> The localhost:3000 part was just on my Mac, now I''m on the server
I need
> to replace that in some way with the root of the rails app - how do I
> refer to it in a virtualhost tag.
>
> Something like this I imagine (obviously not right)...
>
> <VirtualHost *:80>
>   ServerNamewww.apartment-marie.com
>   RewriteEngine on
>   RewriteRule ^(.*)$ APP_ROOT/properties/2/$1 [R]
> </VirtualHost>
>
> I tried simply
>
> <VirtualHost *:80>
>   ServerNamewww.apartment-marie.com
>   RewriteEngine on
>   RewriteRule ^(.*)$ /properties/2/$1 [R]
> </VirtualHost>
>
> But that resulted in a mad loop of redirects !
>
> as did...
>
> <VirtualHost *:80>
>   ServerNamewww.apartment-marie.com
>   RewriteEngine on
>   RewriteRule ^(.*)$ apartment-marie.com/properties/2/$1 [R]
> </VirtualHost>
>
> Just to be clear (if it''s not already), in the end I''m
trying to get the
> resulting url to look like this.http://www.apartment-marie.com/
> andhttp://www.apartment-marie.com/full_details
> with no mention of property in it.
Sounds like you only want to redirect someone touching the root of the
site, ie rewrite ^/$ not ^.*$.
If you want there to be no trace of the property id in the url then
you''ll need to do something rails side, probably inspect the host name
in the rails  and do something with that.

Fred
>
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As Fred metioned. Looks like there''s two rewrites here. Only needs to
be
done from the Apache side and the other from rails (routes.rb)
I suggest you get the apache site going before attempting the other 
rewrite.

Luis

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totally lost.

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Ok, let''s back up a bit.

For now just do the apache rewrite as I mentioned above. I think Fred is 
right that you need to use ^/$ rather than ^.*$ so your rule would look 
like

RewriteRule ^/$ apartment-marie.com/properties/2/$1 [R]

I think that''s it.

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Thanks for bearing with me.

That one didn''t work - close but it gave me a double rendering of the 
apartment-marie.com bit, something like this... 
apartment-marie.com/apartment-marie.com/properties bla... so I edited 
like so (here''s the real file and it''s live if it helps)..

This is much better (ignore the silly google api key message, will sort 
in time)

<VirtualHost *:80>

  ServerName  chaletcordee.co.uk
  # ServerAlias www.chaletcordee.co.uk

  DocumentRoot /home/rupert/public_html/bookings/public

  AddOutputFilterByType DEFLATE text/html text/plain text/xml 
application/xml application/xhtml+xml text/javascript text/css
  AddOutputFilterByType DEFLATE application/javascript
  AddOutputFilterByType DEFLATE application/x-javascript

  Options +FollowSymLinks
  RewriteEngine on
  RewriteRule ^/$ /properties/1/$1 [R]

</VirtualHost>


====
So I feel a bit less lost now... try chaletcordee.co.uk in a browser 
appears to work and sub links are working too, e.g. full_details.

does that look right to you so far?

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So taking it a step on I figure I need to work on a few things...

need to make sure www versions all operate ok.

need to make sure that when I add another domain, that works to.

http://chaletcordee.co.uk/properties/1/comments
should be
http://chaletcordee.co.uk/comments

guess this is the rails part. My routes file is here, not bothered if 
the nested admin routes need to be acessesed with an ugly URL for now, 
it''s just the public facing pages that''d be important
initially.

pastie of my routes file.
http://pastie.org/1230080
Fred? :-)

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I''m half way there then?

Need to handle the rest on the rails side - via my routes.rb file?

Will this approach work?

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yes, it should work.  Look like you may need to add single resources 
along with the nested ones. Not entirely sure if you can do this 
though...

Luis

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Anyone else comment as to if this combination of apache rewrites and 
rails routing will play nicely together. I''ll try it of course just 
imagine that it may have been done before by somebody.

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You could do it all with modrewrite. You''ll just need to specify the 
specific rules and rewrite actions for all your cases. It''s not that 
hard, just read up on it.

There are countless of resources on the web about this.
Here''s a starting point
http://www.webmastertips.us/tutorials/mod_rewrite.htm
http://articles.sitepoint.com/article/guide-url-rewriting

I was thinking of writing an article about this on my site but there''s 
so much out there that it seems pointless.

Luis.
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Thanks Luis, I''ll refer to them and see if I can find a solution
totally
via apache/modrewrite; I suspect I can! I need to get a handle on the
syntax of those rewrite commands, the command chain and regexes, should
be ok. I''ll post back to this thread with the solution when I crack it.

You need to wear *many* hats in this game at times, not every problem
seems to be solvable in the RoR app itself (or perhaps it is but the
*pragmatic* approach for a quick win is to ssh to the server and get
funky with with apache config).

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bingo bob wrote in post #955373:
> Thanks Luis, I''ll refer to them and see if I can find a solution
totally
> via apache/modrewrite; I suspect I can! I need to get a handle on the
> syntax of those rewrite commands, the command chain and regexes, should
> be ok. I''ll post back to this thread with the solution when I
crack it.
>
> You need to wear *many* hats in this game at times, not every problem
> seems to be solvable in the RoR app itself (or perhaps it is but the
> *pragmatic* approach for a quick win is to ssh to the server and get
> funky with with apache config).
Virtual host names can never be implemented completely within Rails, 
since it''s up to Apache to dispatch to the correct server instance
based
on the hostname -- thus, the logic happens before Rails ever sees it.

Anything not involving the hostname can (and usually should) be done 
with Rails routing.

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marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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Well in my case I need to do two things.

1) redirect www.foo.com => www.foo.com/properties/1/
DONE

2) rewrite the resulting url www.foo.com/properties/1/ => www.foo.com
NOT DONE YET

I''m clear point 1 should be done in Apache config, as it is.
Are you saying point (2) should be done in Apache or Rails (routes.rb).

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You can get www.foo.com/ to display the content of properties/1 by  
setting your route for "root" in your routes.rb file. In Rails 2, this
would be

map.root :controller => :properties, :action => :view, :id => 1

Now if you are trying to make property1.foo.com point there as well,  
that could be done in Apache.

What it sounded like you wanted was to point www.foo.com to property/1  
and www.bar.com to property/2. Am I mistaken at that point?

You can do redirects that fundamentally rewrite the URL from the  
server''s perspective, without changing what the user sees in their  
browser''s location bar. So you could avoid the whole routes.rb hack  
I''ve outlined above by rewriting requests for [www.]foo.com to baz.com/
property/1 [NS,QSA] (those flags keep the URL whatever was written in  
the browser. Then the user could enter www.foo.com/edit and the  
request would be www.baz.com/property/1/edit at your server.

Walter

On Oct 19, 2010, at 11:25 AM, bingo bob wrote:
> Well in my case I need to do two things.
>
> 1) redirect www.foo.com => www.foo.com/properties/1/
> DONE
>
> 2) rewrite the resulting url www.foo.com/properties/1/ => www.foo.com
> NOT DONE YET
>
> I''m clear point 1 should be done in Apache config, as it is.
> Are you saying point (2) should be done in Apache or Rails  
> (routes.rb).
>
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Please quote when replying.

bingo bob wrote in post #955467:
> Well in my case I need to do two things.
>
> 1) redirect www.foo.com => www.foo.com/properties/1/
> DONE
>
> 2) rewrite the resulting url www.foo.com/properties/1/ => www.foo.com
> NOT DONE YET
>
> I''m clear point 1 should be done in Apache config, as it is.
The way you are describing it here, that should simply be Rails 
map.root.
> Are you saying point (2) should be done in Apache or Rails (routes.rb).
I don''t understand your description well enough, but I suspect
you''re
badly overcomplicating things.

I''ve never tried to do multiple subdomains on one Rails app, but off
the
top of my head, here''s what I''d try first:

* Use an Apache/Nginx rewrite to map, say, 
http://www.foo.com/properties/1/ to 
http://www.myrailsapp.com/www.foo.com/properties/1

* Within the Rails app, set up the routes to recognize the subdomain 
parameter:
(in Rails 2)
map.resources properties, :path_prefix => '':hostname''

* Use params[:hostname] as necessary in your app logic.

You *might* be able to do without the Apache rewrite and simply dispatch 
on request.host , but I don''t know if that would work.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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Could well be overcomplicating things!

Walter''s point here is sounds closest I think - I''ll try it.
> You can do redirects that fundamentally rewrite the URL from the
> server''s perspective, without changing what the user sees in their
> browser''s location bar. So you could avoid the whole routes.rb
hack
> I''ve outlined above by rewriting requests for [www.]foo.com to
baz.com/
> property/1 [NS,QSA] (those flags keep the URL whatever was written in
> the browser. Then the user could enter www.foo.com/edit and the
> request would be www.baz.com/property/1/edit at your server.
As it stands apache modrewrite in place but not finished - working 
though, :-)!

http://www.chaletcordee.co.uk/
as you will witness if you visit this is rewritten to this in the users 
browser...
http://www.chaletcordee.co.uk/properties/1/
Fine, content works but I''d like this to be
http://www.chaletcordee.co.uk/
in the users browser

in a similar manner

http://www.apartmentnicole.co.uk/
goes to
http://www.apartmentnicole.co.uk/properties/2/
I''d like this to be
http://www.apartmentnicole.co.uk/
in the users browser

if you click on the photos page after visiting
http://www.chaletcordee.co.uk/
you get here...
http://www.chaletcordee.co.uk/properties/1/photos
I''d like this to be
http://www.chaletcordee.co.uk/photos
in the users browser, etc

phew - is anyone still reading - I doubt it ! :-).

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Did you try using the flags Walter suggested, [NS,QSA]? Can you post 
your Apache rewrite rules?

Hopefully we''re not going too off topic with Apache :-)

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Luis Saffie wrote in post #955491:
> Did you try using the flags Walter suggested, [NS,QSA]? Can you post
> your Apache rewrite rules?
>
> Hopefully we''re not going too off topic with Apache :-)
Sorry for delay, currently running with this

<VirtualHost *:80>

  ServerName  chaletcordee.co.uk
  ServerAlias www.chaletcordee.co.uk

  DocumentRoot /home/rupert/public_html/bookings/public

  Options +FollowSymLinks
  RewriteEngine on
  RewriteRule ^/$ /properties/1/$1 [R]

</VirtualHost>

<VirtualHost *:80>

  ServerName  apartmentnicole.co.uk
  ServerAlias www.apartmentnicole.co.uk

  DocumentRoot /home/rupert/public_html/bookings/public

  Options +FollowSymLinks
  RewriteEngine on
  RewriteRule ^/$ /properties/2/$1 [R]

</VirtualHost>

Will try [NS,QSA] but from what walter said I think I might need the 
rewriterule to be different as well, more than just adding those flags?

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Do try it, that''s the secret sauce that lets the URL remain masked.  
The R flag you have there currently is doing a full external redirect  
to a subfolder, but I don''t think you need that.

Walter

On Oct 20, 2010, at 5:11 PM, bingo bob wrote:
> Will try [NS,QSA] but from what walter said I think I might need the
> rewriterule to be different as well, more than just adding those  
> flags?
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Been trying rewrite stuff all week but can''t get to where I want to be.
If anyone has an answer or another way - v keen to hear.

I did wonder about this...http://github.com/shuber/proxy or my routes.rb 
file - or more apache tinkering..

this didn''t get me there either (lots of repeated stuff here)
http://www.sitepoint.com/forums/showthread.php?t=708145

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any tips - I''m not certain that I can achieve this with modrewrite.

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I have built something along these lines and here is how it might work
for you.

Have a domain model that maps a domain name to a property_id(decide
whether you are going to use www or no-www (http://no-www.org/) or
both if you want but it it is better to choose one or the other for
SEO and analytics.

so in your application_controller.rb put in some code that effectively
does a lookup on the domain model to find your property.

before_filter :domain_lookup

  private

  def domain_lookup
    @domain = Domain.find_by_host(request.host)
    raise DomainNotFound unless @domain   # should always find it as
you defined it right?
    raise DomainUnavailable unless @domain.live? # the on button for
the domain
    raise DomainMaintenance if @domain.maintenance? # if you need to
pull it down
    @host = @domain.host + request.port_string   # I need this when
building some redirects as my setup is more complicated, SSL etc.
  end

Now you have @domain.property available in your application wherever
you need it assuming you set up a belongs_to association.  Now you can
refer to something like @domain.property.photos in your application.
I use @domain.css to pick up which of my CSS''s I want to use with that
domain.  You can have as much as you like in there such as maintenance
flags etc.

Next decide what your root path is going to be and set map.root
accordingly.  You may find there is no need to go through the property
controller at all for the end-user since the whole domain is about a
single property and you define that outside in your seed data or admin
console.

Now for the virtual host config in Apache.

<VirtualHost *:80>
                # define any of you domains as the servername, it
doesn''t matter which one you choose to be the main one (perhaps your
admin domain?)
		ServerName property1.com
                # list all of the other domains that run against the
same rails application remembering to pick up the www''s too and
wildcards work too!
		ServerAlias \
		             skichalets*.com     www.skichalets*.com \
		             ahouse.com          www.ahouse.com \
                             myshed.com          www.myshed.com \
                                                 www.property1.com

                # then I rip off the www. using this rule

		RewriteEngine On
		RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
		RewriteRule ^(.*)$ http://%1 [R=301,L]

	  RailsEnv production
          RailsBaseURI /

        DocumentRoot /srv/www/vhosts/yourapp/current/public
</VirtualHost>

Warning if you are using SSL, you can only have one SSL host per IP
address.  Basically the host name is not available to apache until it
has been decrypted by the host certificate, by which time it is too
late!  I work around this by passing the property_id to the ssl
redirects and then use this to look up the domain.  Just be careful
about rebuilding and building sessions.

So the logical flow goes like this:

user puts a URL into browser
apache picks up the host name and checks to see if it is the list of
hosts
rips the www off the host name if you want it to
send the request to be routes.rb in /srv/www/vhosts/yourapp/current/
config
your application_controlller.rb looks up the domain from request.host

HTH

O.

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Right - once more unto the breach and all that! Thanks for this, I see 
what you mean. I''ve part implemented, the bit I don''t quite
get relates
to finding the relevant property and what I put in the routes file to 
hook it up (hooking up the default root to a domain/property).

The bit you describe here....

"Next decide what your root path is going to be and set map.root
accordingly.  You may find there is no need to go through the property
controller at all for the end-user since the whole domain is about a
single property and you define that outside in your seed data or admin
console."

My complicated (perhaps over) routes.rb is like this at present.

http://pastie.org/1230080

Here''s what I have just done in the last hour or so all good as far as 
it goes I think !

migrated a new Domain model
property belongs to domain
domain has one property
(all hooked up and playing nicely)

App controller...

  before_filter :domain_lookup

  private
  def domain_lookup
    @domain = Domain.find_by_host(request.host)
    # raises errors when necessary
  end

bit of my header file for testing...

Request host is :
<%= request.host %> <br/>
Set domain in app controller is : <%= @domain.host %> <br/>
Property that belongs to this domain is : <%= @domain.property.name %> 
<hr/>

as you can se this test works...the find works nicely..

http://chaletcordee.co.uk/properties/1
http://apartmentnicole.co.uk/properties/2/

apache side...just as you suggested, understood nice and simple (I like 
the www striping! no-www is interesting)

<VirtualHost *:80>

  ServerName chaletcordee.co.uk
  ServerAlias www.chaletcordee.co.uk apartmentnicole.co.uk 
www.apartmentnicole.co.uk

  # then I rip off the www. using this rule
  RewriteEngine On
  RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
  RewriteRule ^(.*)$ http://%1 [R=301,L]

  RailsEnv production
  RailsBaseURI /

  DocumentRoot /home/rupert/public_html/bookings/public

</VirtualHost>


Stuck on next step!


Owain wrote in post #956838:
> I have built something along these lines and here is how it might work
> for you.
>
> Have a domain model that maps a domain name to a property_id(decide
> whether you are going to use www or no-www (http://no-www.org/) or
> both if you want but it it is better to choose one or the other for
> SEO and analytics.
>
> so in your application_controller.rb put in some code that effectively
> does a lookup on the domain model to find your property.
>
> before_filter :domain_lookup
>
>   private
>
>   def domain_lookup
>     @domain = Domain.find_by_host(request.host)
>     raise DomainNotFound unless @domain   # should always find it as
> you defined it right?
>     raise DomainUnavailable unless @domain.live? # the on button for
> the domain
>     raise DomainMaintenance if @domain.maintenance? # if you need to
> pull it down
>     @host = @domain.host + request.port_string   # I need this when
> building some redirects as my setup is more complicated, SSL etc.
>   end
>
> Now you have @domain.property available in your application wherever
> you need it assuming you set up a belongs_to association.  Now you can
> refer to something like @domain.property.photos in your application.
> I use @domain.css to pick up which of my CSS''s I want to use with
that
> domain.  You can have as much as you like in there such as maintenance
> flags etc.
>
> Next decide what your root path is going to be and set map.root
> accordingly.  You may find there is no need to go through the property
> controller at all for the end-user since the whole domain is about a
> single property and you define that outside in your seed data or admin
> console.
>
> Now for the virtual host config in Apache.
>
> <VirtualHost *:80>
>                 # define any of you domains as the servername, it
> doesn''t matter which one you choose to be the main one (perhaps
your
> admin domain?)
>     ServerName property1.com
>                 # list all of the other domains that run against the
> same rails application remembering to pick up the www''s too and
> wildcards work too!
>     ServerAlias \
>                  skichalets*.com     www.skichalets*.com \
>                  ahouse.com          www.ahouse.com \
>                              myshed.com          www.myshed.com \
>                                                  www.property1.com
>
>                 # then I rip off the www. using this rule
>
>     RewriteEngine On
>     RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
>     RewriteRule ^(.*)$ http://%1 [R=301,L]
>
>     RailsEnv production
>           RailsBaseURI /
>
>         DocumentRoot /srv/www/vhosts/yourapp/current/public
> </VirtualHost>
>
> Warning if you are using SSL, you can only have one SSL host per IP
> address.  Basically the host name is not available to apache until it
> has been decrypted by the host certificate, by which time it is too
> late!  I work around this by passing the property_id to the ssl
> redirects and then use this to look up the domain.  Just be careful
> about rebuilding and building sessions.
>
> So the logical flow goes like this:
>
> user puts a URL into browser
> apache picks up the host name and checks to see if it is the list of
> hosts
> rips the www off the host name if you want it to
> send the request to be routes.rb in /srv/www/vhosts/yourapp/current/
> config
> your application_controlller.rb looks up the domain from request.host
>
> HTH
>
> O.
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or to put it another way...

what does your routes.rb look like to get the root urls right for a 
property (in my case properties anyway). also, totally happy to bypass 
properties controller for the public views, just figured I''d done it
the
rails way with a properties controller and separate actions for book / 
prices / full_details etc.

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Now I''m firmly back in the rails world here, any kind soul give me a 
pointer as to how I might finish this one. I figure I need to modify the 
routes file and perhaps conditionally modify the rails app home root 
based on domain - what else?

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I think you should run different rail apps on different ports and use Nginx
to proxy to them. That should be simple enough.

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On Tue, Oct 26, 2010 at 11:57, bingo bob
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> Now I''m firmly back in the rails world here, any kind soul give me
a
> pointer as to how I might finish this one. I figure I need to modify the
> routes file and perhaps conditionally modify the rails app home root
> based on domain - what else?
>
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Multiple apps is definitely not what I wish to do here.
It''s a single app.

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Oh well if that is the case then you can probably check the current domain /
request.url in a before_filter inside application_controller and work
accordingly thereafter, that should be simple enough too...

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On Tue, Oct 26, 2010 at 12:32, bingo bob
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> Multiple apps is definitely not what I wish to do here.
> It''s a single app.
>
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A quick look and the following points:

- you are not scoping your property_id to the domain.  If you go to
http://chaletcordee.co.uk/properties/1 you can change to properties 2
in the domain controller and you pick up the other property.  Your
application controller should set an instance variable for the request
@property which you should always use as the parent of all subsequent
request in a before filter.  I think you said you implemented this.

App controller...
  before_filter :domain_lookup
  private
  def domain_lookup
    @domain = Domain.find_by_host(request.host)
    # raises errors when necessary
  end

- apache is doing some redirects here.  You shouldn''t need any other
than the no-www stuff. Take them out.  Let rails do the routing.  You
only really need mod_rewrite if you are doing URL rewriting which I
don''t think you need.

- your map.root invokes your welcome controller.  This should work if
the welcome controller index action shows the details of the property
you have sitting in your instance variable @property

Sounds like you are almost there.

O.

On Oct 26, 7:27 am, bingo bob
<li...-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Now I''m firmly back in the rails world here, any kind soul give me
a
> pointer as to how I might finish this one. I figure I need to modify the
> routes file and perhaps conditionally modify the rails app home root
> based on domain - what else?
>
> --
> Posted viahttp://www.ruby-forum.com/.
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Inline - I won''t have a chance to test this out until a little later
but
yes - thanks for this, think I''m getting it.

Owain wrote in post #957124:
> A quick look and the following points:
>
> - you are not scoping your property_id to the domain.  If you go to
> http://chaletcordee.co.uk/properties/1 you can change to properties 2
> in the domain controller and you pick up the other property.  Your
> application controller should set an instance variable for the request
> @property which you should always use as the parent of all subsequent
> request in a before filter.  I think you said you implemented this.
>
> App controller...
>   before_filter :domain_lookup
>   private
>   def domain_lookup
>     @domain = Domain.find_by_host(request.host)
>     # raises errors when necessary
>   end
So if I''ve understood you correctly, I''d do something like 
this...something like I mean - just to see if this is on the right 
lines?

App controller...
  before_filter :domain_lookup
  private
  def domain_lookup
    @domain = Domain.find_by_host(request.host)
    # raises errors when necessary

  # New step find the property and set the instance variable,
  # do something else sensible if there''s a problem

  if @domain
    # guess the line below is the key
    # set a property instance via the domain name
    @property =  @domain.property
  else
    # do stuff if there''s no domain...
  end

properties controller

at present I find properties by ID - but with this new method I
wouldn''t
need to do that, it''s already done in the app controller. should be 
easy.

routes

this is where I possibly need most advice.
http://pastie.org/1230080

at present these lines...

map.photos ''properties/:id/photos'', :controller =>
''properties'', :action
=> ''photos''
map.contacts ''properties/:id/contacts'', :controller =>
''properties'',
:action => ''contacts''

get me to the various pages, but I do not want the /properties/id bit in 
the URL, how do I redo this routing without /properties/id showing...

is it simply?

map.contacts ''/contacts'', :controller =>
''properties'', :action =>
''contacts''

> - apache is doing some redirects here.  You shouldn''t need any
other
> than the no-www stuff. Take them out.  Let rails do the routing.  You
> only really need mod_rewrite if you are doing URL rewriting which I
> don''t think you need.
OK - I thought I just had the no-www stuff in there - but ok.
>
> - your map.root invokes your welcome controller.  This should work if
> the welcome controller index action shows the details of the property
> you have sitting in your instance variable @property
I''ll have to think of a sensible place to point map.root, one this is a
front page for the app which isn''t a particular property at all - or I 
might send it to one of the properties - haven''t registered a domain 
name for it yet.
> Sounds like you are almost there.
I think so ! :-).
> O.
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Am I on the right lines ?

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This might be a good time to mention that with the rails 3 redesign,
you can specify much more powerful constraints from within the router.
Katz''s website has a nice article on it:
http://yehudakatz.com/2009/12/26/the-rails-3-router-rack-it-up/

The part I found most interesting was this:

Basecamp::Application.routes do
  constraints(:subdomain => "support") do
    match "/foo/bar", :to => "foo#bar"
  end
end

As it turns out, you can swap :hostname (or :host) into the place
of :subdomain and setup different routes for different domains.
Using this in combination with some sort of hostname checking in a
before_filter is all I needed for my project.  No need for any URL
rewriting in nginx.

Hope that helps.

On Oct 19, 9:21 am, bingo bob
<li...-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Could well be overcomplicating things!
>
> Walter''s point here is sounds closest I think - I''ll try
it.
>
> > You can do redirects that fundamentally rewrite the URL from the
> > server''s perspective, without changing what the user sees in
their
> > browser''s location bar. So you could avoid the whole
routes.rb hack
> > I''ve outlined above by rewriting requests for [www.]foo.com
to baz.com/
> > property/1 [NS,QSA] (those flags keep the URL whatever was written in
> > the browser. Then the user could enterwww.foo.com/editand the
> > request would bewww.baz.com/property/1/editat your server.
>
> As it stands apache modrewrite in place but not finished - working
> though, :-)!
>
> http://www.chaletcordee.co.uk/
> as you will witness if you visit this is rewritten to this in the users
> browser...http://www.chaletcordee.co.uk/properties/1/
> Fine, content works but I''d like this to
behttp://www.chaletcordee.co.uk/
> in the users browser
>
> in a similar manner
>
> http://www.apartmentnicole.co.uk/
> goes tohttp://www.apartmentnicole.co.uk/properties/2/
> I''d like this to behttp://www.apartmentnicole.co.uk/
> in the users browser
>
> if you click on the photos page after
visitinghttp://www.chaletcordee.co.uk/
> you get here...http://www.chaletcordee.co.uk/properties/1/photos
> I''d like this to behttp://www.chaletcordee.co.uk/photos
> in the users browser, etc
>
> phew - is anyone still reading - I doubt it ! :-).
>
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On Oct 26, 9:49 am, bingo bob
<li...-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Inline - I won''t have a chance to test this out until a little
later but
> yes - thanks for this, think I''m getting it.
Me too.  I was out all day yesterday.
>
> properties controller
>
> at present I find properties by ID - but with this new method I
wouldn''t
> need to do that, it''s already done in the app controller. should
be
> easy.
>
> routes
>
> this is where I possibly need most advice.http://pastie.org/1230080
>
> at present these lines...
>
> map.photos ''properties/:id/photos'', :controller =>
''properties'', :action
> => ''photos''
> map.contacts ''properties/:id/contacts'', :controller =>
''properties'',
> :action => ''contacts''
>
> get me to the various pages, but I do not want the /properties/id bit in
> the URL, how do I redo this routing without /properties/id showing...
>
> is it simply?
>
> map.contacts ''/contacts'', :controller =>
''properties'', :action =>
> ''contacts''
exactly.  since your properties controller already has access to the
@domain.property or @property from the before_filter.  Therefore no
need to pick it up from the params[:id] at all.

so you should have a in routes.rb
map.root :controller => "properties"
this will mean that a call to http://chalet.com will invoke the index
action of the properties controller.  Your index action should simply
call render :action => :details template to show the @domain.property
or whatever the template uses.

I guess you probably want to have a "master domain" that lists all of
the properties and still use the same app.  Also for your admin
support.  Well it is easy to amend your before_filter to handle a non-
defined domain and then tweak the index action to render
appropriately.

if @property
  render :action => :details
else
  render :action => :index
end

Your routes do need a bit of cleaning up.  In fact you should look
RESTful routes.  e.g. map.resources :availability  I guess you have a
pretty big properties controller, try and keep them skinny and
delegate the stuff about availability to the availability
controller.

>
> > - apache is doing some redirects here.  You shouldn''t need
any other
> > than the no-www stuff. Take them out.  Let rails do the routing.  You
> > only really need mod_rewrite if you are doing URL rewriting which I
> > don''t think you need.
>
> OK - I thought I just had the no-www stuff in there - but ok.
>
I was getting a 302 redirect for some reason.  Make sure you have
removed any of the URL rewriting you were doing.

Hope that helps.

O.

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