diff options
Diffstat (limited to 'lib/active_storage/disk_controller.rb')
| -rw-r--r-- | lib/active_storage/disk_controller.rb | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/active_storage/disk_controller.rb b/lib/active_storage/disk_controller.rb index 3eba86c213..9d5b52d66f 100644 --- a/lib/active_storage/disk_controller.rb +++ b/lib/active_storage/disk_controller.rb @@ -4,11 +4,21 @@ require "active_storage/verified_key_with_expiration" require "active_support/core_ext/object/inclusion" +# This controller is a wrapper around local file downloading. It allows you to +# make abstraction of the URL generation logic and to serve files with expiry +# if you are using the +Disk+ service. +# +# By default, mounting the Active Storage engine inside your application will +# define a +/rails/blobs/:encoded_key+ route that will reference this controller's +# +show+ action and will be used to serve local files. +# +# A URL for an attachment can be generated through its +#url+ method, that +# will use the aforementioned route. class ActiveStorage::DiskController < ActionController::Base def show if key = decode_verified_key blob = ActiveStorage::Blob.find_by!(key: key) - + if stale?(etag: blob.checksum) send_data blob.download, filename: blob.filename, type: blob.content_type, disposition: disposition_param end |