1 files changed, 26 insertions, 0 deletions
diff --git a/lib/gitlab/graphql/loaders/full_path_model_loader.rb b/lib/gitlab/graphql/loaders/full_path_model_loader.rb
new file mode 100644
index 00000000000..0aa237c78de
--- /dev/null
+++ b/lib/gitlab/graphql/loaders/full_path_model_loader.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Graphql
+    module Loaders
+      # Suitable for use to find resources that expose `where_full_path_in`,
+      # such as Project, Group, Namespace
+      class FullPathModelLoader
+        attr_reader :model_class, :full_path
+
+        def initialize(model_class, full_path)
+          @model_class, @full_path = model_class, full_path
+        end
+
+        def find
+          BatchLoader::GraphQL.for(full_path).batch(key: model_class) do |full_paths, loader, args|
+            # `with_route` avoids an N+1 calculating full_path
+            args[:key].where_full_path_in(full_paths).with_route.each do |model_instance|
+              loader.call(model_instance.full_path, model_instance)
+            end
+          end
+        end
+      end
+    end
+  end
+end