From: Fabian Streitel <karottenreibe@...>
Date: 2009-08-19T02:04:23+09:00
Subject: Re: exercise in DRY

--000e0cd1e058f9d5e504716d6bbf
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

How 'bout that:

class Tweet
 def agree
  agree_count += 1
 end

 def disagree
  disagree_count += 1
 end
end

# pass this method either :agree or :disagree
def agree_or_not( method )
 tweet = tweet.find(params[:id])
 tweet.send(method)
 render :text => consensus(method, tweet.agree_count, tweet.disagree_count)
end

def consensus( method, agreed, disagreed )
  if method == :agree
    agreed = "#{agreed-1} <strong>+1</strong>"
  else
    disagreed = "#{disagreed-1} <strong>+1</strong>"
  end

  "<span class='agree'>#{agreed}</span> &ndash; <span
class='disagree'>#{disagreed}</span>"
end

--000e0cd1e058f9d5e504716d6bbf--