How to: "Upload" from a local file

It's easy to "upload" a file programmatically, for test or fixture or seed or scripting purposes.

For instance, do this inside seed.rb to create a Restaurant instance with a CarrierWave logo field from an image you've got stored away in your own db/images directory:

restaurant = Restaurant.create!(name: "McDonald's")
restaurant.logo = Pathname.new(Rails.root.join("db/images/mcdonalds_logo.png")).open
restaurant.save!

If you are using multiple file uploads (e.g: using a Postgresql Array field), you should be able to upload programmatically using:

restaurant = Restaurant.create!(name: "McDonald's")
restaurant.logos = [
  Pathname.new("/path/to/file/logo_1.jpg").open,
  Pathname.new("/path/to/file/logo_2.jpg").open
]
restaurant.save!

Load all jpeg match Filename == id from some local path

@images = Dir.glob("some/local/path/*.jpeg")
@images.each do |i|
  id = File.basename(i).gsub('.jpeg','');
  t = Product.where(id:id).first;
  t.images = [Pathname.new(i).open];
end