Rails - Jul 2009 - undefined method empty? when find first invoked on db

if model.compiled_this_week.first.empty?
OR
if model.compiled_this_week.find(:first).empty?

.. return undefined method empty?

if model.compiled_this_week.all.empty?
OR
if model.compiled_this_week.find(:all).empty?

.. work as expected

compiled_this_week is a named scope applied to specific date/search
conditions.

named_scope :compiled_this_week, lambda { { :conditions =>
[''created_at
> ? and created_at < ?'', Time.now.beginning_of_week, 
Time.now.end_of_week] } }

Any reason why this returns undefined method?
-- 
Posted via http://www.ruby-forum.com/.

As a named_scope, compiled_this_week will return a collection, even if it
finds only one record matching its criteria. On a collection, #empty? will
work. When you call #first or #find(:first) on the collection returned by
compiled_this_week, you get the first record. #empty? is undefined on that
record.
Regards,
Craig


-- 
Craig Demyanovich
Mutually Human Software
http://mutuallyhuman.com

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Ah that makes sense now - thanks for the clarification on that Craig!
-- 
Posted via http://www.ruby-forum.com/.