Rails: decide to render spefic image in view based on database entry
=f.input :vote, :as => :radio, :label => "Your vote", |
:collection => [["positive","/images/Thumbs-up-icon.png"],["negative","/images/Thumbs-down-icon.png"],["neutral","/images/Thumbs-neutral-icon.png"]] |

- @opinions.each do |opinion|
[...]
        #opinion_vote
          = image_tag opinion.vote , {:height=>60}

def neutral?
  if vote == 0
end

def positive?
  if vote == 1
end

def negative?
  if vote == 2
end

def vote_image
  vote.positive? ? 'positive.png' : vote.negative? ? 'negative.png' : 'neutral.png'
end