On Jan 30, 2008 12:15 PM, Zoltán Németh <znemeth@xxxxxxxxxxxxxx> wrote:
> > It's opinionated software and is certainly not for everyone.
>
> ok it's not for everyone, certainly not for me. but what is it from your
> point of view that makes it a 'more interesting advance'?
1) Test driven development is built-in, and not just unit tests, but
functional tests and integration tests too. In addition there's
several plugins that extend your tests into realms you may not have
thought of. There's Rcov which will tell you what code you haven't
written test for. I know, you don't write tests. It's perfectly
natural to not write tests when your framework doesn't support them
out of the box.
2) Prototype and script.aculo.us are built-in. Not just included in
the download but fully integrated into the models.
Symphony tried to pull off the same thing with it's framework but it's
fairly messy in my opinion.
update_element_function('foo', array(
'content' => "New HTML",
));
Compared to the Rails equivalent:
page.replace_html 'foo', :html => 'New HTML'
The other Javascript helpers like observers for example are similarly
very small.
3) Database migrations that allow for versioned SQL. I can roll out
new sql or roll back my broken sql with a single command.
rake db:migrate VERISON=42
I can rebuild my entire database from scratch:
rake db:migrate VERISON=0; rake db:migrate
The migrations are Ruby code that are very tight in syntax:
class CreateSessions < ActiveRecord::Migration
def self.up
create_table :sessions do |t|
t.string :session_id, :null => false
t.datetime :updated_at, :null => false
t.text :data
end
add_index :sessions, :session_id
add_index :sessions, :updated_at
end
def self.down
drop_table :sessions
end
end
4) Capistrano which is fully integrated with Subversion (and soon Git
I heard) allows me to roll out a versioned copy of my application with
a single command:
cap deploy
And then I can also rollback just as easily in case of an error:
cap rollback
5) Ruby on Rails has a built-in plugin architecture for adding vendor
code. I can add new functionality to my app as easy as
gem install acts_as_taggable
or
gem install pagination
It's a bit like Perl's CPAN if you're familiar.
There are also plugins, engines, and components depending on the level
of integration you want the vendor code to have.
6) Model validations extend into the view. No re-mapping of variables
like with Smarty or some others I've tried.
7) The REST architecture is built-in to Rails. No more SOAP, unless
you want it of course. No one's using it but it's there.
--
Greg Donald
http://destiney.com/
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