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developing facebookbapplications phần 7

. Tôi thích các tab để điều hướng, vì vậy chúng ta hãy loại bỏ các liên kết giúp đỡ và hành động từ bảng điều khiển của chúng tôi. Chúng tôi đã thực hiện một số thay đổi nhỏ để ứng dụng của chúng tôi thêm rất nhiều phong cách. Chúng tôi sẽ tiếp tục tìm kiếm cách khác | Publishing to News Feeds 116 ft def attack_feed attack send_as user_action from attack.attacking_user.facebook_session.user data result attack_result attack move attack.move.name defender name attack.defending_user images image attack.move.image_name new_attack_url end The Facebooker image helper lets us just specify a filename and a URL to which the image should be linked. It takes care of setting up the right Facebook parameters. Try publishing another story. You won t need to reregister your template because it hasn t changed. We re just adding more data. We ve looked at two of the three sizes of feed items. Full-size story templates are created just like short-story templates. The only difference is that the full size story can be up to 700 pixels tall. That s much more room than we can possibly use for our simple application. We ll just stick to our two existing sizes. Feed Item Aggregation Feed items show up in two different places. Your actions show up on the wall tab of your profile page. Your friends actions show up on your home page. Although every feed item that is created on your behalf shows up on your profile not every one of your friends actions shows up on your home page. Because of the overwhelming number of feed items created Facebook tries to group similar feed items to reduce the number of redundant feed items. Let s take a look at an example. Let s say you are friends with both me and my wife on Facebook. If we attacked each other back and forth several times it would generate a large number of feed items. Instead of showing you a play-by-play our attacks Facebook would rather show you a single story that said something like Mike and Jen attacked their friends with Karate Poke. Facebook s most recent changes to the feed API are aimed at better enabling exactly this kind of aggregation. Along with providing multiple sizes of templates Facebook also allows you to provide multiple one-line and short-story templates. Because Facebook can combine .