upload multi file

<br />#Controller：<br />def uploading<br /> files = []<br /> for i in 1..session[:files].to_i<br /> next if params[:gallery]["file_#{i}".to_sym].to_s.blank?<br /> files << Gallery.create(:file => params[:gallery]["file_#{i}".to_sym]).id.to_s<br /> end<br /> redirect_to :action => "images", :files => files.join("_")<br /> end<br /> <br /> def new_upload_field<br /> session[:files]+=1<br /> render :update do |page|<br /> page.insert_html :after, "file_fields", file_column_field("gallery", "file_#{session[:files]}") + "<br />"<br /> end<br /> end<br />
<br />#View：<br /><%= javascript_include_tag :defaults %><br /><% form_for(Gallery.new, :url => {:action => "uploading"}, :html => {:multipart => true}) do |f| -%><br /> <div id="file_fields"><br /> <%= file_column_field("gallery", "file_#{session[:files]}")%><%= link_to_remote("Add new", :url => {:action => "new_upload_field"}) %><br /> </div><br /> <%= f.submit("Upload") %><br /><% end %><br />