1 files changed, 34 insertions, 0 deletions
diff --git a/app/models/project_team.rb b/app/models/project_team.rb
index 072d281e5f8..5b7eded00cd 100644
--- a/app/models/project_team.rb
+++ b/app/models/project_team.rb
@@ -178,6 +178,40 @@ class ProjectTeam
     max_member_access_for_user_ids([user_id])[user_id]
   end
 
+  def contribution_check_for_user_ids(user_ids)
+    user_ids = user_ids.uniq
+    key = "contribution_check_for_users:#{project.id}"
+
+    Gitlab::SafeRequestStore[key] ||= {}
+    contributors = Gitlab::SafeRequestStore[key] || {}
+
+    user_ids -= contributors.keys
+
+    return contributors if user_ids.empty?
+
+    resource_contributors = project.merge_requests
+                                   .merged
+                                   .where(author_id: user_ids, target_branch: project.default_branch.to_s)
+                                   .pluck(:author_id)
+                                   .product([true]).to_h
+
+    contributors.merge!(resource_contributors)
+
+    missing_resource_ids = user_ids - resource_contributors.keys
+
+    missing_resource_ids.each do |resource_id|
+      contributors[resource_id] = false
+    end
+
+    contributors
+  end
+
+  def contributor?(user_id)
+    return false if max_member_access(user_id) >= Gitlab::Access::GUEST
+
+    contribution_check_for_user_ids([user_id])[user_id]
+  end
+
   private
 
   def fetch_members(level = nil)