Pragmatic Forums | Everyday Active Record Screencast, Episode 1 -- NoMethodError Issue

May 28, 2008 4:26pm

Karen Labenz 2 posts

I have been following along with no problems until I type: theater = Theater.first in the ruby console. I get this error:

NoMethodError: undefined method `first' for #<Class:0x1872b9c>
    from /Library/Ruby/Gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:1532:in `method_missing'
    from (irb):15

development log output:
Rendering /Library/Ruby/Gems/1.8/gems/actionpack-2.0.2/lib/action_controller/templates/rescues/layout.erb (internal_server_error) SQL (0.000421) SHOW TABLES

None of the console commands in the screencast work after this…

Running OSX 10.5.2
ruby 1.8.6
mysql 4.1.22-standard
rails 2.0.2

I would appreciate any help—thanks!
Karen

May 28, 2008 6:50pm

Ryan Bates 25 posts

Hi Karen, the “first” method is new in Rails 2.1 (which will be released very soon). In the meantime you can use “find(:first)” instead which basically does the same thing. Sorry I should have mentioned this in the episode.

May 28, 2008 7:28pm

Karen Labenz 2 posts

That did the trick—thanks so much!

May 29, 2008 3:21am

Bala Paranj 6 posts

Ryan, where is the current_date method defined?

May 29, 2008 11:35pm

Ryan Bates 25 posts

current_date isn’t a method. It’s part of ANSI SQL, so it is available in most database engines.

Everyday Active Record Screencast, Episode 1 -- NoMethodError Issue

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May 28, 2008 4:26pm Karen Labenz 2 posts	I have been following along with no problems until I type: `theater = Theater.first` in the ruby console. I get this error: NoMethodError: undefined method `first' for #<Class:0x1872b9c> from /Library/Ruby/Gems/1.8/gems/activerecord-2.0.2/lib/active_record/base.rb:1532:in `method_missing' from (irb):15 development log output: `Rendering /Library/Ruby/Gems/1.8/gems/actionpack-2.0.2/lib/action_controller/templates/rescues/layout.erb (internal_server_error) SQL (0.000421) SHOW TABLES` None of the console commands in the screencast work after this… Running OSX 10.5.2 ruby 1.8.6 mysql 4.1.22-standard rails 2.0.2 I would appreciate any help—thanks! Karen

May 28, 2008 6:50pm Ryan Bates 25 posts	Hi Karen, the “first” method is new in Rails 2.1 (which will be released very soon). In the meantime you can use “find(:first)” instead which basically does the same thing. Sorry I should have mentioned this in the episode.

May 28, 2008 7:28pm Karen Labenz 2 posts	That did the trick—thanks so much!

May 29, 2008 3:21am Bala Paranj 6 posts	Ryan, where is the current_date method defined?

May 29, 2008 11:35pm Ryan Bates 25 posts	current_date isn’t a method. It’s part of ANSI SQL, so it is available in most database engines.