refactor.rb

  def post_avatar(post)
    if post.is_a?(Post)
      link_to(image_tag(post.network.image_url, :class => "avatar zzz"), post.network.link_url, :class => "username avatar")
    elsif post.is_a?(TwitterPost)
      link_to(image_tag(post.from_user_avatar, :class => "avatar zzz post"), networks_twitter_twitter_user_twitter_posts_url(post.originating_network, twitter_user(post.data)['screen_name']), :class => 'twitter_user_profile avatar')
    elsif post.is_a?(FacebookPost)
      link_to(image_tag(post.from_user_avatar, :class => "avatar zzz post"), networks_facebook_facebook_user_facebook_posts_url(post.originating_network, post.data['from']['id']), :class => 'facebook_user_profile avatar')
    elsif post.is_a?(GnipTwitterPost)
      link_to(image_tag(post.from_user_avatar, :class => "avatar zzz post"), '#', :class => 'twitter_user_profile avatar')
    elsif post.is_a?(GnipFacebookPost)
      link_to(image_tag(post.from_user_avatar, :class => "avatar zzz post"), '#', :class => 'facebook_user_profile avatar')
    elsif post.is_a?(GnipNetworkPost)
      link_to(image_tag(post.from_user_avatar, :class => "avatar zzz post"), '#', :class => 'avatar')
    end
  end

  def post_comments(post)
    if post.is_a?(Post)
      render '/shared/comments/comments.html', :post => post, :comments => post.post_comments
    elsif post.is_a?(GnipNetworkPost)
      render '/shared/comments/comments.html', :post => post, :comments => post.network_post_comments
    end
  end