Cache the forks in a namespace in the RequestStore

On the `show` of a project that is part of a fork network. We check if
the user already created a fork of this project in their personal
namespace.

We do this in several places, so caching the result of this query in
the request store prevents us from repeating it.

1 files changed, 9 insertions, 1 deletions

diff --git a/spec/models/namespace_spec.rb b/spec/models/namespace_spec.rb
index 90b768f595e..3817f20bfe7 100644
--- a/spec/models/namespace_spec.rb
+++ b/spec/models/namespace_spec.rb
@@ -531,7 +531,7 @@ describe Namespace do
     end
   end
 
-  describe '#has_forks_of?' do
+  describe '#find_fork_of?' do
     let(:project) { create(:project, :public) }
     let!(:forked_project) { fork_project(project, namespace.owner, namespace: namespace) }
 
@@ -550,5 +550,13 @@ describe Namespace do
 
       expect(other_namespace.find_fork_of(project)).to eq(other_fork)
     end
+
+    context 'with request store enabled', :request_store do
+      it 'only queries once' do
+        expect(project.fork_network).to receive(:find_forks_in).once.and_call_original
+
+        2.times { namespace.find_fork_of(project) }
+      end
+    end
   end
 end