Add latest changes from gitlab-org/gitlab@master

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/gitlab/utils/batch_loader.rb b/lib/gitlab/utils/batch_loader.rb
new file mode 100644
index 00000000000..67ade0633e2
--- /dev/null
+++ b/lib/gitlab/utils/batch_loader.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Utils
+    module BatchLoader
+      # Clears batched items under the specified batch key
+      # https://github.com/exAspArk/batch-loader#batch-key
+      def self.clear_key(batch_key)
+        return if ::BatchLoader::Executor.current.nil?
+
+        items_to_clear = ::BatchLoader::Executor.current.items_by_block.select do |k, v|
+          # The Hash key here is [source_location, batch_key], so we just check k[1]
+          k[1] == batch_key
+        end
+
+        items_to_clear.each do |k, v|
+          ::BatchLoader::Executor.current.items_by_block.delete(k)
+          ::BatchLoader::Executor.current.loaded_values_by_block.delete(k)
+        end
+      end
+    end
+  end
+end