Rails - Jan 2005 - Rails 0.9.3: Optimistic locking, dynamic finders, Ruby 1.8.2 compatible

Rails is now fully compatible with Ruby 1.8.2, which we advice all to 
upgrade to as soon as possible. It contains a year''s worth of bug fixes
for Ruby, so it''s great finally to be able to use the new version with 
Rails. But that is not all we got in store for 0.9.3. A few of the 
highlights are:

* Automated optimistic locking: Just add the field @lock_version@ to 
your table and the associated class will be governed by optimistic 
locking that''ll raise an exception if a stale object attempts to save.

* Dynamic finders: Finders like Person.find_by_user_name, 
Payment.find_by_amount, and even Person.find_by_user_name_and_password 
are now available with no code at all. Any column can be used and 
combined with other columns in the new dynamic finders.

* MS SQL Server and DB2: Active Record now supports both Microsoft SQL 
Server (through ADO) and IBM''s DB2 databases.

* MemCacheStore for sessions: You can now store sessions in Action Pack 
using Danga''s memcache technology.

* Generators guard against reserved words:* Not only will 
./script/generate model Thread be denied, you''ll also get a list of 
synonyms pulled live from WordNet!

That''s just a small taste of the 35 changes, fixes, and features 
introduced with Rails 0.9.3. You can read the full story in the 
changelogs:

* Active Record: http://ar.rubyonrails.com/files/CHANGELOG.html
* Action Pack  : http://ap.rubyonrails.com/files/CHANGELOG.html
* Rails        : http://rails.rubyonrails.com/files/CHANGELOG.html


The new web presence
===================
Since the last release, we''ve also launched a brand new website and 
visual identity for Rails. This includes the long awaited logo by John 
Hicks with a remix by Olivier Hericord. Check it all out at: 
http://www.rubyonrails.org


Upgrading from Rails 0.9.2 to 0.9.3
==================================
There''s only one change you need to make in order to have your 
application updated from 0.9.2 to 0.9.3. In the 
config/environments/production.rb and config/environments/test.rb, you 
need to change:

   ActionController::Base.reload_dependencies = false
   ActiveRecord::Base.reload_associations     = false

...to:

   Dependencies.mechanism = :require<

And in config/environments/development.rb, you need to change:

   ActionController::Base.reload_dependencies = true
   ActiveRecord::Base.reload_associations     = true

...to:

   Dependencies.mechanism = :load

If you''re coming on from 0.8.x, you''ll need to go through the
<a
href="http://manuals.rubyonrails.com/read/book/3">Upgrading to 0.9 
manual</a>.
--
David Heinemeier Hansson,
http://www.basecamphq.com/   -- Web-based Project Management
http://www.rubyonrails.org/  -- Web-application framework for Ruby
http://macromates.com/       -- TextMate: Code and markup editor (OS X)
http://www.loudthinking.com/ -- Broadcasting Brain

Just tried ''gem update'' from 0.9.2 and got this:

$ gem update
Upgrading installed gems...
Updating Gem source index for: http://gems.rubyforge.org
Attempting remote upgrade of actionpack
Attempting remote installation of ''actionpack''
Successfully installed actionpack, version 1.2.0
Installing RDoc documentation for actionpack-1.2.0...

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

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

lib/action_controller/scaffolding.rb:87:37: Skipping require of dynamic
string: "#{model_id.id2name}"
ERROR:  While executing gem ... (NoMethodError)
    undefined method `find_module_named'' for nil:NilClass

On Tue, Jan 04, 2005 at 09:52:41AM -0800, Sean Leach
wrote:
> Just tried ''gem update'' from 0.9.2 and got this:
> 
> $ gem update
> Upgrading installed gems...
> Updating Gem source index for: http://gems.rubyforge.org
> Attempting remote upgrade of actionpack
> Attempting remote installation of ''actionpack''
> Successfully installed actionpack, version 1.2.0
> Installing RDoc documentation for actionpack-1.2.0...
> 
> lib/action_controller/support/binding_of_caller.rb:4:25: Couldn''t
find
> Continuation. Assuming it''s a module
> 
> lib/action_controller/support/binding_of_caller.rb:36:21: Couldn''t
find
> Binding. Assuming it''s a module
> 
> lib/action_controller/scaffolding.rb:87:37: Skipping require of dynamic
> string: "#{model_id.id2name}"
> ERROR:  While executing gem ... (NoMethodError)
>     undefined method `find_module_named'' for nil:NilClass
I got this off a clean gem install, then ran gem install rails again and
it worked.  Gremlins.

-Scott

I got this when installing sqlite bindings a few days ago. Its only
related to rdoc, the bindings worked great


On Tue, 4 Jan 2005 13:00:59 -0500, Scott Barron
<scott-HDQKq3lYuGDk1uMJSBkQmQ@public.gmane.org>
wrote:
> On Tue, Jan 04, 2005 at 09:52:41AM -0800, Sean Leach wrote:
> > Just tried ''gem update'' from 0.9.2 and got this:
> >
> > $ gem update
> > Upgrading installed gems...
> > Updating Gem source index for: http://gems.rubyforge.org
> > Attempting remote upgrade of actionpack
> > Attempting remote installation of ''actionpack''
> > Successfully installed actionpack, version 1.2.0
> > Installing RDoc documentation for actionpack-1.2.0...
> >
> > lib/action_controller/support/binding_of_caller.rb:4:25:
Couldn''t find
> > Continuation. Assuming it''s a module
> >
> > lib/action_controller/support/binding_of_caller.rb:36:21:
Couldn''t find
> > Binding. Assuming it''s a module
> >
> > lib/action_controller/scaffolding.rb:87:37: Skipping require of
dynamic
> > string: "#{model_id.id2name}"
> > ERROR:  While executing gem ... (NoMethodError)
> >     undefined method `find_module_named'' for nil:NilClass
> 
> I got this off a clean gem install, then ran gem install rails again and
> it worked.  Gremlins.
> 
> -Scott
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
> 

-- 
Tobi
http://www.hieraki.org   - Open source book authoring
http://blog.leetsoft.com - Technical weblog

Scott Barron wrote:
> I got this off a clean gem install, then ran gem install rails again and
> it worked.  Gremlins.
Yeah - I just did a ''gem install rails'' and it worked fine...

> 
> -Scott
> _______________________________________________
> Rails mailing list
> Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
> http://lists.rubyonrails.org/mailman/listinfo/rails

On Tue, Jan 04, 2005 at 01:03:51PM -0500, Tobias Luetke
wrote:
> I got this when installing sqlite bindings a few days ago. Its only
> related to rdoc, the bindings worked great
> 
> On Tue, 4 Jan 2005 13:00:59 -0500, Scott Barron
<scott-HDQKq3lYuGDk1uMJSBkQmQ@public.gmane.org> wrote:
> > On Tue, Jan 04, 2005 at 09:52:41AM -0800, Sean Leach wrote:
> > > Just tried ''gem update'' from 0.9.2 and got
this:
> > >
> > > $ gem update
> > > Upgrading installed gems...
> > > Updating Gem source index for: http://gems.rubyforge.org
> > > Attempting remote upgrade of actionpack
> > > Attempting remote installation of ''actionpack''
> > > Successfully installed actionpack, version 1.2.0
> > > Installing RDoc documentation for actionpack-1.2.0...
> > >
> > > lib/action_controller/support/binding_of_caller.rb:4:25:
Couldn''t find
> > > Continuation. Assuming it''s a module
> > >
> > > lib/action_controller/support/binding_of_caller.rb:36:21:
Couldn''t find
> > > Binding. Assuming it''s a module
> > >
> > > lib/action_controller/scaffolding.rb:87:37: Skipping require of
dynamic
> > > string: "#{model_id.id2name}"
> > > ERROR:  While executing gem ... (NoMethodError)
> > >     undefined method `find_module_named'' for
nil:NilClass
To clarify, the first three are what Tobi said but that last one is bone fide.

marcel
-- 
Marcel Molina Jr. <marcel-WRrfy3IlpWYdnm+yROfE0A@public.gmane.org>

On Jan 4, 2005, at 12:03 PM, Tobias Luetke wrote:
> I got this when installing sqlite bindings a few days ago. Its only
> related to rdoc, the bindings worked great

Is there something simple I could do to reproduce this?

Dave