Add storage managers (local, sftp, s3, hybrid).

app/logical/storage_manager/hybrid.rb

@@ -0,0 +1,23 @@
+class StorageManager::Hybrid < StorageManager
+  attr_reader :submanager
+
+  def initialize(&block)
+    @submanager = block
+  end
+
+  def store_file(io, post, type)
+    submanager[post.id, post.md5, post.file_ext, type].store_file(io, post, type)
+  end
+
+  def delete_file(post_id, md5, file_ext, type)
+    submanager[post_id, md5, file_ext, type].delete_file(post_id, md5, file_ext, type)
+  end
+
+  def open_file(io, post, type)
+    submanager[post.id, post.md5, post.file_ext, type].open_file(post, type)
+  end
+
+  def file_url(post, type)
+    submanager[post.id, post.md5, post.file_ext, type].file_url(post, type)
+  end
+end