%form{:action => "/admin/tag/#{@tag.id}", :method => :post}
  .fields
    %input{:name => 'tag[name]', :placeholder => 'new tag name', :value => @tag.name}=""
  .buttons
    %button{:type => :submit}="update"
%ul
  -@tag.posts.each do |post|
    %li
      %a{:href => "/admin/post/#{post.id}"}=post.title