Alias_method_chain on a boolean attribute not calling

Rails
1

I have the below code - I cannot use alias_method_chain unless I
declare :accepted= before using it - i suppost the attribute methods
are added latter - I suspect that this case is blowing away my
alias_method_chain

How can i complete this intention correctly, doing it the rails-way and
pretty?

Thanks
Curtis.

class IncomingVideo < ActiveRecord::Base
validates_presence_of :content_url
validates_presence_of :title

def uncurated?
!accepted?
end
def accepted=(val)
update_attribute(:accepted,val)
end

def accepted_with_create_curated_video=(val)
if uncurated? and val == true
cv = CuratedVideo.create(:title => title,
:description => description,
:content_url => content_url,
:site_url => site_url)
cv.save!
end
accepted_without_create_curated_video=val
end
alias_method_chain :accepted=,:create_curated_video
end

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2

On Jan 5, 1:40Â am, Curtis Jennings Schofield
[email protected] wrote:

I have the  below code - I cannot use alias_method_chain unless I
declare :accepted= before using it - i suppost the attribute methods
are added latter - I suspect that this case is blowing away my
alias_method_chain

How can i complete this intention correctly, doing it the rails-way and pretty?

You’ll likely want to do this in an after_save callback, as the method
you’ve posted (if it worked) would end up drooling stray CuratedVideo
records into the DB every time a model set that value (perhaps via
mass-assignment) then didn’t pass validation.

–Matt J.

3

On Tue, Jan 5, 2010 at 9:40 PM, Matt J. [email protected] wrote:

You’ll likely want to do this in an after_save callback, as the method
you’ve posted (if it worked) would end up drooling stray CuratedVideo
records into the DB every time a model set that value (perhaps via
mass-assignment) then didn’t pass validation.

–Matt J.

Thanks for your response - after i realized that it wasn’t going to
work - i did use a
call back and the _changed? and _was parts of the dirty attribute and
it was as clean as i prefer and passed spec (and as you said - avoided
extra useless queries).