Stupid ruby controller question

Rails Engines Development
1

Thanks for all the help so far guys…here’s another one for the smart
engine devs…

Let’s say I have a MainController in my engine…and it has 4 actions
inside there.

Now let’s say I want to inherit that MainController in my regular
application, and override one of the actions…

How would I go about doing that? It seems when I place MainController in
my application it overrides the one in my engine folder by default.

What’s the appropriate way to do this? Mixins? Inheritance?

2

(this post is more suitable for engine-users btw - engine-developers
is more for patches to the Engines plugin… but anyway… :slight_smile:

If you have something like this in your engine:

RAILS_ROOT/
vendor/
plugins/
my_engine/
app/
controllers/
main_controller.rb
(with the contents:)
class MainController < ApplicationController
def method1() puts “hello” end
def method2() puts “ruby” end
def method3() puts “rocketh” end
end

… if you just wanted to change the behaviour of, say,
MainController#method3, you should only need the following:

RAILS_ROOT/
app/
controllers/
main_controller.rb
(containing:)
class MainController < ApplicationController
def method3() puts “like, y’know, totally rules” end
end

Any methods defined in corresponding controllers of your main /app
directory will override those in the engine. Is this what you’ve done?

  • james
3

Sorry for the off-topic then…

What you describe is exactly what I’m trying…well with a little twist.
It’s not the MainController, its one of my controllers thats a subclass.

RAILS_ROOT/vendor/plugins/my_engine/app/controllers/admin/orders_controller.rb

class Admin::OrdersController < Admin::BaseController
def index
…do something
end

def show
…
end

def …

end
end

RAILS_ROOT/app/controllers/admin/orders_controller.rb

class Admin::OrdersController < Admin::BaseController
def ship_orders
…do something
end
end

What’s going on is that when I try to hit the index action defined in my
engine, Rails says it doesn’t exist.

“Unknown action - No action responded to index”

Could subclassing my Admin::BaseController be causing the problem? I’m
guessing maybe engines aren’t setup to deal with this?

4

This is a bug - expect a new release of the Engines plugin in a few
hours… Thanks! :slight_smile:

  • james
5

The latest release of the Engines plugin should solve this - is it
working for you?

  • james

---------- Forwarded message ----------
From: James A. [email protected]
Date: Jan 6, 2006 10:44 AM
Subject: Re: [Engine-developers] Stupid ruby controller question
To: [email protected]

This is a bug - expect a new release of the Engines plugin in a few
hours… Thanks! :slight_smile:

  • james
6

James A. wrote:

The latest release of the Engines plugin should solve this - is it
working for you?

  • james

Definitely. Just deployed my production app to Dreamhost about an hour
ago.

7

Excellent. URL us so we can see it!

  • james
8

James A. wrote:

Excellent. URL us so we can see it!

  • james

I didn’t design it, so I’m not really “proud” of it per say…That and
Dreamhost is extremely slow.

But I will plug 2 of my other sites that are running on the same engine
code at the moment (which I designed from top to bottom)