socialforge/app/views/attachments/update_file_dense.js.erb

<% if @attachment.container_type == 'Course' %>
$("#is_public_<%= @attachment.id %>").html("<%= escape_javascript(link_to (@attachment.is_public? ? "设为私有":"设为公开"), update_file_dense_attachments_path(:attachmentid=>@attachment.id,:newtype=>(@attachment.is_public? ? 0:1)),
                                                              :remote=>true,:class=>"postOptionLink",:method => :post) %>");
<% elsif @attachment.container_type == 'Project' %>
    $("#is_public_<%= @attachment.id %>").html("<%= escape_javascript(link_to (@attachment.is_public? ? "设为私有":"设为公开"), update_file_dense_attachments_path(:attachmentid => @attachment.id, :newtype => (@attachment.is_public? ? 0:1)),
                                                              :remote => true, :class => "postOptionLink", :method => :post) %>");

<% else %>
$("#is_public_<%= @attachment.id %>").html("<%= escape_javascript(link_to (@attachment.is_public? ? "设为私有":"设为公开"), update_file_dense_attachments_path(:attachmentid=>@attachment.id,:newtype=>(@attachment.is_public? ? 0:1)),
                                                              :remote=>true,:class=>"postOptionLink",:method => :post) %>");
<% end %>
<% if @attachment.is_public? %>
    $("#image_private_<%= @attachment.id%>").html('')
<%else%>
$("#image_private_<%= @attachment.id%>").html('<span class="img_private ml5">私有</span>')
<% end %>