generate controller account/groups and account/posts
移除不必要的 css , js , helper
個人後台的連結與空白頁面完成
account/groups/index done
account/posts/index done
後台的 post 排列要以最新 => 最舊順序排列
generate migrate add_posts_count_to_group
rake db:migrate add_posts_count_to_group
將 group.posts.count 改用 count_cache => .size
解決 account/posts/index 的 post.group.tiele 的 law of demeter 問題
Merge pull request #7 from sdlong/chapter7

Chapter7