CODEWITHSUNDEEP
jqueryruby-on-railsfile-uploadrack
Uri Klar
Uri Klar

Reputation: 3988

Rails with JQuery fileupload gives expected Array (got Rack::Utils::KeySpaceConstrainedParams

I'm preforming an ajax file upload in Rails with jQuery fileupload. The first upload works fine, but when I try a consecutive upload I get a server error saying:

 Unexpected error while processing request: expected Array (gotRack::Utils::KeySpaceConstrainedParams) for param `photos'
/home/uriklar/.rvm/gems/ruby-1.9.3-p448/gems/rack-1.4.5/lib/rack/utils.rb:114:in `normalize_params'

This is how my upload process is working: In an Apartment form I have a nested form for photos

= f.simple_fields_for Photo.new do |photo|
  = photo.file_field :photo, label: false, class: 'photo_upload_input', multiple: true, name: "photos[]", data: {url: '/apartments/'[email protected]_s+'/photos/new'}

and in my javascript:

$('.photo_upload_input').fileupload();

The first file upload sends me to the correct action (Photos#update) and saves the photos correctly. It even works for multiple files.. It calls the action separately for each file. 

    def update
     @apartment = Apartment.find(params[:apartment_id])
     @photo = @apartment.photos.create(photo: params[:photos][0])
   end

The problem is, when I try to upload a second round of photos I get the error written above. It doesn't even hit the controller... What does this error mean? Any help would be greatly appreciated! Thanks

Upvotes: 3

Views: 1264

Answers (1)

Uri Klar
Uri Klar

Reputation: 3988

After digging deep inside the Rack code and understanding very little of it, I decided to do change: name = "photos[]" to name="photos" (in the file_field input) and now it's all working! Not really sure why... but that's my solution

Upvotes: 4

Related Questions