I have a legacy database with a column named 'class' which is causing Rails problems. Renaming the column isn't an option and the workarounds I've seen so far don't suit. I'm running rails 2.0.2 and an example of the error thrown looks like this... undefined method `generated_methods' for "ADD":String c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/attribute_methods.rb:188:in `method_missing' (The value returned in the 'class' column is 'ADD' in this case. Can anyone suggest a nice, neat, dry, satisfying solution?
on 2008-01-11 10:40
on 2008-01-11 11:07
On 11 Jan 2008, at 09:40, Derek Mailer wrote: > c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ > attribute_methods.rb:188:in > `method_missing' > How about class MyTable < AR:Base class << self def instance_method_already_implemented?(method_name) return true if method_name == 'class' super end end end If I'm reading things right, that will stop AR from generating a class method to read your attribute. You can still get at it via foo[:class] (or define you own method returning read_attribute(:class) Fred
on 2008-01-11 13:27
Frederick Cheung wrote: > How about > class MyTable < AR:Base > class << self > def instance_method_already_implemented?(method_name) > return true if method_name == 'class' > super > end > end > end > > If I'm reading things right, that will stop AR from generating a class > method to read your attribute. You can still get at it via foo[:class] > (or define you own method returning read_attribute(:class) You're absolutely right and that'll ding dang do for me very nicely thanks, Fred! I no longer have errors in all the places they were showing before. Just as a note to anyone else reading this post, you might need to restart script/console rather than issue a reload! command after implementing this fix. Derek
on 2008-08-19 19:38
The same thing worked for me as well. GORGEOUS!! AHHHHHHH!! I want to go run around my office now. Thank you so much for the help!! AWESOME!
on 2009-02-22 20:47
Worked great for me as well. Thanks!