gistfile1.rb

require 'base62'
...


# mint a URI for a lolly
post '/mint' do
  message = params[:message].gsub(/'/,"''")
  db.execute( "insert into lollies (message, image) values ('"+ message +"','#{params[:lolly]}')" )
  if request.xhr?
    id = db.execute( "SELECT last_insert_rowid() FROM lollies" )[0].to_s()
    id = id.to_i.base62_encode
    
    #prepare a clip and link to tweet.
    link = ' http://vlolly.com/'+id    
    if message.length + link.length > 140
      link = '...' + link
    end
    clip = escape(message[0, 140 - link.length] + link)

    '<div>Here\'s your link, send it to someone who deserves some sugar <a href="/'+id+'">http://vlolly.com/'+id+'</a></div><div> Or perhaps you might like to <a href="http://twitter.com/home?status='+clip+'">tweet it.</a></div>'
  else
    erb :yours
  end
end