ActiveState Community Site - rails 2.0 - Comments

Answering the question about listing attributes (finally)

ericp — Wed, 20 Feb 2008 22:05:30 +0000

You don't have to list all the attributes in the scaffold command.
The scaffold command will auto-generate the created_on and updated_on
timestamp fields for you automatically. You can bypass that by
running the command from the command-line, like so:

ruby script/generate scaffold --skip-timestamps ModelName attr:type ...

Later on you would use the generate/migration and
migrate/db:migrate commands to add more attributes,
just like in 1.x.

You should be able to add new attributes incrementally

ericp — Tue, 05 Feb 2008 18:31:42 +0000

You'll have to manually update the views, but scaffold-generated
views have always been intended to be just scaffolding, and not
the final product.

As I showed above, I find the controllers that the new
scaffolder generates to be pretty cool.

Scaffolding changed with Rails 2.0

ericp — Tue, 05 Feb 2008 18:25:42 +0000

The changes are not backward-compatible, unfortunately.
I couldn't resist showing some of the benefits of
the new version, while showing how to get going...

The new site for the scaffold-resource-generated app is:

http://localhost:3000/movies/

Because the scaffold generator is now restful it gives you
the following URIs:

http://localhost:3000/movies/ ==> index

http://localhost:3000/movies/3 ==> display item 3

http://localhost:3000/movies/4/edit ==> edit page for item 4

http://localhost:3000/movies/new ==> display new-movie page

And you can add a ".xml" to the end of the URL:

http://localhost:3000/movies/2.xml ==> return an XML view of item 2

Now add this line to the show method in movies_controller.rb,
under the format.xml line:

format.js { render :json => @movie }

format.js { render :json => @movie }

Here's what the JSON Rails returns would look like.

$ wget -q  -O - http://localhost:3000/movies/2.js
{"updated_at": "2008/02/05 10:15:21 -0800",
 "title": "elf",
 "id": 2,
 "year": 2002, "created_at": "2008/02/05 10:15:21 -0800"}
$

Hope this gets you going. I plan on updating the toolset and
screencast to work with Rails 2 soon now.

How many Attributes do you have to list?

PogiNate — Tue, 05 Feb 2008 17:53:16 +0000

Do you have to list all attributes of the model, or does this let you create a scaffold selectively? Also, what is the address for the scaffold once it's created? According to the tutorial, it should be http://localhost:3000/library, but clearly it's not going to get the library name now.
:Nate Dickson