Rails Virtual Attributes Not Updating

Question

I have a Model "Tag" that links to the dbpedia article for a particular topic. I want to create a virtual attribute that will use this dbpedia URI to generate a wikipedia URI. Here's roughly what the class looks like:

class Tag < ActiveRecord::Base

  # Validation
  validates_presence_of :dbpedia_uri, :label

  #Virtual Attribute
  def wikipedia_uri
    "#{dbpedia_uri}".gsub("dbpedia.org/resource", "wikipedia.org/wiki")    
  end

end

When I go into my console and try to check Tag.all[1].wikipedia_uri, I get the following error:

NoMethodError: undefined method `wikipedia_uri' for #<Tag:0xa0c79ac>

Additionally, I have a second Model (Map) with virtual attributes that do work, but when I change them, I still get the old value. So when the code is:

 def thumbnail_uri
    "#{map_base_uri}/thumbnails/#{identifier}.jpg"
  end

Map.all[1].thumbnail_uri returns something like: "http://WEBSITE/maps/thumbnails/g3201b.ct002662.jpg"

and when I change the code to:

def thumbnail_uri
   "test"
end

I still get the output: "http://WEBSITE/maps/thumbnails/g3201b.ct002662.jpg"

I've tried reloading my Rails Console, but it still doesn't seem to be updating the virtual attributes. Any thoughts on what could be causing this issue?

What did you do to reload your console? Did you exit and relaunch it? — Rob Davis, Jul 13 '12 at 21:19
seems like [that question](http://stackoverflow.com/questions/5427596/rails-console-reload-not-reflecting-changes-in-model-files-what-could-be-poss) — Dmitry Dedov, Jul 13 '12 at 22:08
I use Ctrl+D in order to exit the console and then manually enter rails console again. I also tried using `attr_accessible` and it did nothing. — NonsenseSynapse, Jul 16 '12 at 13:59

score 0 · Answer 1 · answered Jul 16 '12 at 14:21

0

Figured out the issue. I was stupidly running my console in a directory for a duplicate backup set of files, so all of the methods and variables from the backup were available in the console, but my changes to the current code weren't affecting it

answered Jul 16 '12 at 14:21

NonsenseSynapse

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Rails Virtual Attributes Not Updating

1 Answers1