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ActiveRecord - named_scope using ':columns' as the name is buggered

#4167

I spent all afternoon on this one but it's rewarding to find it....

Given a model called "Article"

I have a list of named_scope directives as follows:

  named_scope :active,  :conditions => {:active     => true}
  named_scope :journal, :conditions => {:department => 0}
  named_scope :features,:conditions => {:department => 1}
  # NOTE: If you use :columns here, it's buggered!
  named_scope :column,  :conditions => {:department => 2}
  named_scope :news,    :conditions => {:department => 3}
  named_scope :tips,    :conditions => {:department => 4}

If I use :column for a name, it works fine. If I use :columns for a name the model's attributes are not accessible in script/console or when rails is running normally.

-Art

Reported by FlyboyArt · March 13th, 2010 @ 02:56 PM

Activity

Ryan Bigg
columns is a reserved class method on ActiveRecord. Perhaps named_scope should error if you try to define a method that is already defined?

March 14th, 2010 @ 02:11 AM
David Trasbo
- Assigned user set to Ryan Bigg
In edge Rails you will be warned if defining a scope results in a method being overridden. This ticket can be closed.

April 11th, 2010 @ 09:19 PM

Ryan Bigg

State changed from new to resolved

Fixed in edge Rails:

    if !scopes[name] && respond_to?(name, true)
      logger.warn "Creating scope :#{name}. " \
                  "Overwriting existing method #{self.name}.#{name}."
    end

April 11th, 2010 @ 09:32 PM