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ruby-on-railsrails-activestorage

Attaching a File to Multiple Objects

How can you beautifully attach the same file to multiple ActiveRecord objects?

object1.image.attach(params[:image])
blob = object1.image.blob
object2.image.attach(blob)
object3.image.attach(blob)
object4.image.attach(blob)
Solution

  • Although not necessarily beautiful, it does get the job done with a minimal amount of code:

    blob = ActiveStorage::Blob.create_and_upload!(io: file, filename: filename)
objects.each do |object|
  object.image.attach(blob)
end

    But it would be great if we had a simple rails method something like this:

    MyClass.image.attach(objects, params[:image])