File uploads in import scripts

Simulating file uploads in your scripts or from console can be done really simple using Rail’s ActionController::TestUploadedFile from action_pack.

Example code:

require 'action_controller/test_process'
 
class ImportExternalData
 ...
  def import_data
    ...
    page.attachments << PageAttachment.new(
      :uploaded_data => fake_file_upload(filename, mime_type),
      :title => title,
      :description => description)
    ...
  end
 
 
protected
  def fake_file_upload(path, mime_type = nil, binary = false)
    ActionController::TestUploadedFile.new(
      path,
      mime_type,
      binary
    )
  end
end

Excerpt from ActionController::TestUploadedFile’s comments:

Essentially generates a modified Tempfile object similar to the object
you’d get from the standard library CGI module in a multipart
request. This means you can use an ActionController::TestUploadedFile
object in the params of a test request in order to simulate
a file upload.