Rails - Mar 2005 - Where to place custom classes?

Hi all,

I am writing a simple shopping cart which will consist of a single 
class. There will be no DB table for carts so I do not want to make my 
Cart a model. But where do I place my Cart class so that I can access 
it in my controllers?

I want to be able do do things like this (for instance in a shop 
controller):

def add_to_cart
   @session[''cart''].add(article_id, amount)
end

where the cart would have been created like:

@session[''cart''] = Cart.new

Many thanks in advance!

-- Nicky

It''s still a model in the MVC sense so keep it in the models directory


On Sun, 6 Mar 2005 21:38:36 +0100, Nickolay Kolev
<nmkolev-OhoefBWHl6Eb1SvskN2V4Q@public.gmane.org>
wrote:
> Hi all,
> 
> I am writing a simple shopping cart which will consist of a single
> class. There will be no DB table for carts so I do not want to make my
> Cart a model. But where do I place my Cart class so that I can access
> it in my controllers?
> 
> I want to be able do do things like this (for instance in a shop
> controller):
> 
> def add_to_cart
>    @session[''cart''].add(article_id, amount)
> end
> 
> where the cart would have been created like:
> 
> @session[''cart''] = Cart.new
> 
> Many thanks in advance!
> 
> -- Nicky
> 
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

On Mar 6, 2005, at 21:38 Uhr, Nickolay Kolev wrote:
> Hi all,
>
> I am writing a simple shopping cart which will consist of a single 
> class. There will be no DB table for carts so I do not want to make my 
> Cart a model. But where do I place my Cart class so that I can access 
> it in my controllers?
i would definitely put it in models. it IS a model. models don''t always
require persistence.

> i would definitely put it in models. it IS a model. models don''t 
> always require persistence.
I suppose I just don''t have to inhertit form ActiveRecord::Base then?

-- Nicky

Nickolay Kolev schrieb:
>> i would definitely put it in models. it IS a model. models
don''t
>> always require persistence.
> 
> 
> I suppose I just don''t have to inhertit form ActiveRecord::Base
then?
yep ;)

Sascha

One thing I noticed just now...

Whenever I add a method to my Cart class I have to restart Apache for 
rails to pick up the changes. I then have to restart my browser, 
because fcgi has cleared all its objects on server shutdown. Is this 
normal?

I am running Apache 2.0.52 with fcgi on OSX.

-- Nicky

On Sunday 06 March 2005 21:17, Nickolay Kolev wrote:
> Whenever I add a method to my Cart class I have to restart Apache for
> rails to pick up the changes. I then have to restart my browser,
> because fcgi has cleared all its objects on server shutdown. Is this
> normal?
Yep.  It''s easier to develop using the server script (script/server
directory
of your rails project).  Or, more generally, CGI etc.  FCGI and mod_python 
etc. are better for final production code that doesn''t change much.  As
always, develop, make sure it works, and worry about speeding it up later.

-- 
Lee.

> Yep.  It''s easier to develop using the server script
(script/server
> directory
> of your rails project).  Or, more generally, CGI etc.  FCGI and 
> mod_python
> etc. are better for final production code that doesn''t change
much.  As
> always, develop, make sure it works, and worry about speeding it up 
> later.
OK, thanks for clearing this up.

-- Nicky

On Sunday 06 March 2005 21:29, Nickolay Kolev wrote:
> > of your rails project).  Or, more generally, CGI etc.  FCGI and
> > mod_python
> OK, thanks for clearing this up.
Very welcome :)

p.s.: sorry everyone, I meant mod_ruby of course :D

-- 
Lee.

I find I can make changes in my code, even when using fast_cgi, if I
am operating in my "development" environment.  This is not the case if
I am in "production" environment.

ruby script/server -e development (webrick)
FastCgiServer /mypath/public/dispatch.fcgi -initial-env
RAILS_ENV=development (fast_cgi on Apache)


On Sun, 6 Mar 2005 21:34:49 +0000, Lee Braiden
<jel-OMY0mCUCxqbPG/DoapTOmA@public.gmane.org>
wrote:
> On Sunday 06 March 2005 21:29, Nickolay Kolev wrote:
> > > of your rails project).  Or, more generally, CGI etc.  FCGI and
> > > mod_python
> > OK, thanks for clearing this up.
> 
> Very welcome :)
> 
> p.s.: sorry everyone, I meant mod_ruby of course :D
> 
> --
> Lee.
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

You should use require_dependency rather then require

this will reload the dependency when it changes.

On March 6, 2005 02:17 pm, Nickolay Kolev wrote:
> One thing I noticed just now...
>
> Whenever I add a method to my Cart class I have to restart Apache for
> rails to pick up the changes. I then have to restart my browser,
> because fcgi has cleared all its objects on server shutdown. Is this
> normal?
>
> I am running Apache 2.0.52 with fcgi on OSX.
>
> -- Nicky
>
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails

> You should use require_dependency rather then require
>
> this will reload the dependency when it changes.
If I have my cart.rb i the models directory, I do not have to require 
anything, the controller finds it automagically. I will check how it 
behaves when I use require_dependency.

How do I set my production environment? I know I am in development 
right now, as this is the only database I have defined in database.yml. 
:-) How do I set it to production at the and and what changes would 
that bring?

-- Nicky

* Nickolay Kolev <nmkolev-OhoefBWHl6Eb1SvskN2V4Q@public.gmane.org> [0321
06:21]:
> >You should use require_dependency rather then require
> >
> >this will reload the dependency when it changes.
> 
> If I have my cart.rb i the models directory, I do not have to require 
> anything, the controller finds it automagically. I will check how it 
> behaves when I use require_dependency.
> 
> How do I set my production environment? I know I am in development 
> right now, as this is the only database I have defined in database.yml. 
> :-) How do I set it to production at the and and what changes would 
> that bring?
You set RAILS_ENV=production in your environment.

(or use the -e flag if running webrick, last time I checked that overrode
the environment setting).

-- 
''...and then we wrote scripts to write the configs for us, and using
these scripts, we made mistakes in a faster, more automated manner.''
		-- A Gentle Introduction to Cricket, on MRTG configuration
Rasputin :: Jack of All Trades - Master of Nuns