Rails 3 Can't Upload with AJAX - 


so need upload files via ajax...  have both parts working seperately....  upload view:  <%= form_tag('upload_zip', :multipart => true) %>   <p>     file:<br />     <%= file_field_tag 'zip_file' %><br />   </p>   <p>     <%= submit_tag "upload zip/tar.gz" %>   </p> <% end %>  , else have remote form_tag working...  <%= form_tag url_for(:action => :add_tracks), :remote => true %> ..... <%= submit_tag "submit", :disable_with => "processing..." %>   both of these work fine when try add :remote => true can't seem work.  of syntaxes seem not file name , try upload nil.

file uploads tricky. i'd recommend using uploadify. there example of how here: https://github.com/rdetert/formfly

the other thing watch out protect_from_forgery rails uses. there fix not long ago needed include in application.js ajax requests work in:

$(document).ajaxsend(function(e, xhr, options) {   var token = $("meta[name='csrf-token']").attr("content");   xhr.setrequestheader("x-csrf-token", token); });

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