From 894e1e3183b78d62d873454312882df53a29f850 Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Thu, 6 Jul 2017 16:01:11 +0200
Subject: Check integrity after uploads

---
 lib/active_storage/service.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/active_storage/service.rb')

diff --git a/lib/active_storage/service.rb b/lib/active_storage/service.rb
index 0d0ebf6010..9aab654d80 100644
--- a/lib/active_storage/service.rb
+++ b/lib/active_storage/service.rb
@@ -1,5 +1,7 @@
 # Abstract class serving as an interface for concrete services.
 class ActiveStorage::Service
+  class ActiveStorage::IntegrityError < StandardError; end
+
   def self.configure(service, **options)
     begin
       require "active_storage/service/#{service.to_s.downcase}_service"
@@ -10,7 +12,7 @@ class ActiveStorage::Service
   end
 
 
-  def upload(key, io)
+  def upload(key, io, checksum: nil)
     raise NotImplementedError
   end
 
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