Rails 2.0.1 & dynamic scaffolding? Any alternative?

I am a newbie, and I am learning RoR from “Agile Web Development with Rails” by Thomas & Hansson. In one of the “iteration” this is the code:

class AdminController < ApplicationController scaffold :product
end

I have heard of ActiveScaffold, but that seems very complicated.
If I don’t use dynamic scaffolding, but create the static scaffold for “product”, how do I jump from one controller to another?

Sultan,

I really feel for you. I was in the same place two days ago. Try this, inside of your Depot folder, and let me know if it works:

script/plugin install http://svn.rubyonrails.org/rails/plugins/scaffolding/

Sultan,

If you are using the latest Rails (2.0.x), I suggest you read Sean Lynch’s modified “depot” demo (now “exchange”) which accomplishes the same as what is in Chapter 4 of AWDWR. It’s at his blog:
http://fairleads.blogspot.com/2007/12/rails-20-and-scaffolding-step-by-step.html

Sam Rawlins.

Isn’t there a way to downgrade the Rails version, I just started with the rails book and have the same problem. Maybe it’s nicer to learn Rails with the old version and then look at the differences.

Thanks in advance!

I was trying the new method as mentioned in the article linked above but i get empty insert/edit pages (no input fields) does anyone know what’s the problem?

I get this in the console:
Processing MoviesController#new (for 127.0.0.1 at 2007-12-19 23:07:34) [GET] Session ID: BAh7BiIKZmxhc2hJQzonQWN0aW9uQ29udHJvbGxlcjo6Rmxhc2g6OkZsYXNo%0ASGFzaHsABjoKQHVzZWR7AA%3D%3D--57df921ecce52c0d30a91d4ad2bf55d3916d5692 Parameters: {"action"=>"new", "controller"=>"movies"} Movie Columns (0.002558) SHOW FIELDS FROM `movies` Rendering template within layouts/movies Rendering movies/new Completed in 0.01069 (93 reqs/sec) | Rendering: 0.00261 (24%) | DB: 0.00256 (23%) | 200 OK [<a href="http://localhost/movies/new">http://localhost/movies/new</a>]

On this URL you see a screenshot of the problem, http://test.base42.nl/screenshot_002.jpg

I hope someone can help me.

UPDATE; I just found out why it didn’t work, sorry for bothering you guys. It didn’t work because i did
exchange$ ruby script/generate scaffold Movie
in stead of
exchange$ ruby script/generate scaffold Movie title:string description:text one_sheet_url:string

because of this my scaffold didn’t create the required field on the edit page.

Thanks to everyone who helped me out. Sorry for the delay in saying thanks, I was busy with another project.

With Fairlead’s Exchange demo:
rails -d mysql exchange
will use MySql instead of the new SQLite default.

Somebody asked a while ago, how to downgrade.
This is what you want to do:
$ gem install rails --version 1.2.6

So you see, I know how to downgrade and exercise the book with rails-1.2.x,
but what if I want to do rails-2.x ?

I ran into that problem with the dynamic scaffolding as discussed in “create the maintenance application” in ch. 6.1:
scaffold :product
And I was told an error message, that didn’t help me a lot.

What’s the easiest way around?
Some smart rephrasing of the above “scaffold :product”?

Dynamic scaffolding is deprecated in 2.0. If you want to do AWDWR in rails 2.0.2 you have a thread already exploring that alternative at the following:

http://forums.pragprog.com/forums/22/topics/184

and here are some more resources.

http://www.ruby-forum.com/topic/134691#new

I have upgraded the Depot app to Rails 2.0 version. You can watch the screencast for free at http://www.rubyplus.org/episodes/19-AWDR-Depot-App-using-Rails-2-version.html

The modified code is not distributed by me. Bug Dave, he might distribute my code for
educational purpose.