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[ANN] Rails 0.9: Fast development, breakpoints, validations...

David Heinemeier Hansson

12/16/2004 10:16:00 PM

Another huge upgrade with again close to 100 changes, additions, and
tweaks. Most importantly are the new faster development environment
that caches the framework and lets the application reload under both
WEBrick and Fast CGI. Major is also the new breakpoints that allows you
to inspect an application during execution, change the model, and
resume. Additionally, we got a whole new way to do validations that
extends the domain language of Rails with a wide range of new words.

The changelogs are so long I thought I'd just link to them this time:

* Rails 0.9.0: http://api.rubyonrails.org/files/CHAN...
* Action Pack 1.0.0: http://ap.rubyonrails.org/files/CHAN...
* Active Record 1.2.0: http://ar.rubyonrails.org/files/CHAN...
* Action Mailer 0.5.0: http://am.rubyonrails.org/files/CHAN...

But more importantly:

* Learn how to upgrade from 0.8.5 to 0.9.0:
http://rails.hieraki.org/r...
* ...or check the book about 0.9 features:
http://rails.hieraki.org/r...

This massive release would never have been possible without the killer
community hanging out at #rubyonrails. Known by such handles as
noradio, xal, flgr, htonl, bitsweat, and many, many more, they really
showed what a dedicated group of programmers are capable of. I'm deeply
honored to be amongst such wonderful people. Thanks, guys!

As also, the easiest way to upgrade the software is: "gem update"
--
David Heinemeier Hansson,
http://www.basec... -- Web-based Project Management
http://www.rubyon... -- Web-application framework for Ruby
http://macro... -- TextMate: Code and markup editor (OS X)
http://www.loudthi... -- Broadcasting Brain
9 Answers

James Britt

12/17/2004 1:34:00 AM

0

David Heinemeier Hansson wrote:
> ...
> As also, the easiest way to upgrade the software is: "gem update"


Running gem update will update *all* installed gems.

If any gem (not just a rails gem) has an API change, then you'll have to
go change your code to either use the new API or to request a specific
gem version. Probably better to update gems on purpose, when you have
some idea what to expect, rather than doing a bulk update on every gem
just to get a few specific items.

Running
gem install rails

should update all rails-related gems without affecting any other gems,
which is a safer, more responsible, suggestion on how to upgrade rails.



Thanks,


James

dblack

12/17/2004 12:01:00 PM

0

James Britt

12/17/2004 1:42:00 PM

0

David A. Black wrote:
> Hi --
>
> On Fri, 17 Dec 2004, James Britt wrote:
>
>> David Heinemeier Hansson wrote:
>>
>>> ...
>>> As also, the easiest way to upgrade the software is: "gem update"
>>
>>
>>
>> Running gem update will update *all* installed gems.
>>
>> If any gem (not just a rails gem) has an API change, then you'll have
>> to go change your code to either use the new API or to request a
>> specific gem version. Probably better to update gems on purpose, when
>> you have some idea what to expect, rather than doing a bulk update on
>> every gem just to get a few specific items.
>>
>> Running
>> gem install rails
>>
>> should update all rails-related gems without affecting any other gems,
>> which is a safer, more responsible, suggestion on how to upgrade rails.
>
>
> I believe David meant it as in: "Use the 'gem update' command (which
> in this case, since you're updating Rails, would take the argument
> 'rails')", just as one might say, "Use the 'ruby' command to run a
> Ruby script".

Well, even if that is the intention, it is not the behavior.

gem update foo

updates every gem, not just foo.

>
> It's true wording of this kind is slightly ambiguous, but that's all.
> It's not the first time something has had to be clarified a bit. I'd
> like to nip in the bud the implication that David was trying to steer
> people toward updating all their gems at once, which he wasn't and
> which attributes to him either ignorance of gems or some kind of
> bizarre pranksterism -- wrongly, in either case.

I don't think David was advocating one update all gems, but that is the
end result, and it has been pointed out here before.

I've also mentioned it to Jim W., as I was caught off-guard by this on a
previous rails update. I suggested that either 'update foo' should
should update only foo, or at least warn that it will update all gems.


To check this, I just ran

c:\>gem install rubygems
Attempting local installation of 'rubygems'
Local gem file not found: rubygems*.gem
Attempting remote installation of 'rubygems'
Updating Gem source index for: http://gems.rub...
Successfully installed rubygems-update, version 0.8.3
Installing RDoc documentation for rubygems-update-0.8.3...
WARNING: Generating RDoc on .gem that may not have RDoc.

(But note:
c:\>gem -v
0.8.1
)


I then ran
gem update rake

and rubygems proceeded to try to update all my gems. (Ironically, it
choked and died trying to update the rails actionmailer gem.)

c:\>gem update rake
Upgrading installed gems...
Attempting remote upgrade of actionmailer
Attempting remote installation of 'actionmailer'
ERROR: While executing gem ... (NoMethodError)
undefined method `serialize' for
CGI::Session::ActiveRecordStore::Session:Class



Thanks,


James

dblack

12/17/2004 2:48:00 PM

0

Hal E. Fulton

12/17/2004 3:06:00 PM

0

David A. Black wrote:
> It's not the first time something has had to be clarified a bit. I'd
> like to nip in the bud the implication that David was trying to steer
> people toward updating all their gems at once, which he wasn't and
> which attributes to him either ignorance of gems or some kind of
> bizarre pranksterism -- wrongly, in either case.

What, you're claiming DHH isn't a bizarre prankster? I submit that
Rails is only a global prank to hypnotize web developers -- one that
is so far succeeding. Only reason I haven't succumbed myself is that
I am not much of a web developer... but I can sense that I too will
fall under its spell someday soon.


Hal

George Moschovitis

12/17/2004 5:06:00 PM

0

> Another huge upgrade with again close to 100 changes, additions, and
> tweaks.
Congratulations,
this seems like another cool release.

-g.

Its Me

12/17/2004 5:44:00 PM

0

The gem install gives a couple of new warnings aboud not finding
Continuation and Binding (and some familair "Skilling require of dynamic
strings" warnings). Should I just ignore these?

-------------------
lib/binding_of_caller.rb:4:25: Couldn't find Continuation. Assuming it's a
module

lib/binding_of_caller.rb:36:21: Couldn't find Binding. Assuming it's a
module

lib/rails_generator.rb:34:46: Skipping require of dynamic string:
"#{path}/#{name}_generator.rb"
Installing RDoc documentation for activerecord-1.2.0...
Installing RDoc documentation for actionpack-1.0.1...

lib/action_controller/scaffolding.rb:87:37: Skipping require of dynamic
string: "#{model_id.id2name}
"

Eric Hodel

12/17/2004 6:06:00 PM

0

On 17 Dec 2004, at 09:47, itsme213 wrote:

> The gem install gives a couple of new warnings aboud not finding
> Continuation and Binding (and some familair "Skilling require of
> dynamic
> strings" warnings). Should I just ignore these?

These probably come from RDoc, so you can ignore them.

> -------------------
> lib/binding_of_caller.rb:4:25: Couldn't find Continuation. Assuming
> it's a
> module

Continutation is a builtin class.

> lib/binding_of_caller.rb:36:21: Couldn't find Binding. Assuming it's a
> module

Binding is a builtin class.

> lib/rails_generator.rb:34:46: Skipping require of dynamic string:
> "#{path}/#{name}_generator.rb"
> Installing RDoc documentation for activerecord-1.2.0...
> Installing RDoc documentation for actionpack-1.0.1...

You can ignore this one.

> lib/action_controller/scaffolding.rb:87:37: Skipping require of dynamic
> string: "#{model_id.id2name}
> "

And this.

David Heinemeier Hansson

12/17/2004 8:57:00 PM

0

> These probably come from RDoc, so you can ignore them.

Yeah. It would be nice if RDoc could be called with a silent option and
if RubyGems used this option by default. These warnings are scarring
people ;)
--
David Heinemeier Hansson,
http://www.basec... -- Web-based Project Management
http://www.rubyon... -- Web-application framework for Ruby
http://macro... -- TextMate: Code and markup editor (OS X)
http://www.loudthi... -- Broadcasting Brain