Error "Validation failed: Url This field is required!" when create attachment by paperclip?

Question

My params[attachments]:

#<ActionDispatch::Http::UploadedFile:0x007ff89bac0990 @tempfile=#<Tempfile:/tmp/RackMultipart20170119-25970-6hvs90.jpg>, @original_filename="ca.jpg", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"job_application[attachments]\"; filename=\"ca.jpg\"\r\nContent-Type: image/jpeg\r\n">

And when i create by: Attachment.create!( document: params[attachments])

It show me error: Validation failed: Url This field is required! Any ideal? Thanks for any help.

Answer 1

In your Attachment model you are likely performing some validation like validates_presence_of :url