Paperclip is not saving files in local machine

Question

I am using rails 4.1.6 and paperclip 4.2,

I have model like following:

class QcAttachment < ActiveRecord::Base
  has_attached_file :attachment,
                    :url => "/attachments/:id/:style/:basename.:extension",
                    :path => ":rails_root/public/attachments/:id/:style/:basename.:extension"
end

I had created only two columns for paperclip in database table named attachment_file_name and attachment_content_type

I got params like following: params=> { "temp_qc_id" => 1001, qc_attachment => { "temp_qc_id" => 1001, "attachment_file_name" => "temp_file.jpg", "attachment_content_type" => "image/jpg" } }

When I create record using QcAttachment.create(qc_attachment), the record has been saved and I got attachment object and values.

I get attachment.path = /home/me/projects/temp_project/public/attachments/25/original/temp_file.jpg

and attachment.url = /attachments/25/original/temp_file.jpg

But, when I browse the public folder of temp_projectdirectory, I didn't find out the attachment folder in it or any other folder and the file which I saved.

Logs are:

SQL (0.4ms)  INSERT INTO `qc_attachments` (`created_at`, `temp_qc_id`, `attachment_content_type`, `attachment_file_name`, `updated_at`) VALUES ('2015-06-08 12:15:07', 10000001, 'image/png', 'temp_file.jpg', '2015-06-08 12:15:07')
   (18.1ms)  COMMIT
Completed 200 OK in 38ms (Views: 1.2ms | ActiveRecord: 22.8ms)

Any help would be appriciated!