1 files changed, 40 insertions, 0 deletions
diff --git a/app/services/projects/move_project_members_service.rb b/app/services/projects/move_project_members_service.rb
new file mode 100644
index 00000000000..22a5f0a3fe6
--- /dev/null
+++ b/app/services/projects/move_project_members_service.rb
@@ -0,0 +1,40 @@
+# NOTE: This service cannot be used directly because it is part of a
+# a bigger process. Instead, use the service MoveAccessService which moves
+# project memberships, project group links, authorizations and refreshes
+# the authorizations if neccessary
+module Projects
+  class MoveProjectMembersService < BaseMoveRelationsService
+    def execute(source_project, remove_remaining_elements: true)
+      return unless super
+
+      Project.transaction(requires_new: true) do
+        move_project_members
+        remove_remaining_members if remove_remaining_elements
+
+        success
+      end
+    end
+
+    private
+
+    def move_project_members
+      prepare_relation(non_existent_members).update_all(source_id: @project.id)
+    end
+
+    def remove_remaining_members
+      # Remove remaining members and authorizations from source_project
+      source_project.project_members.destroy_all
+    end
+
+    def project_members_in_target_project
+      @project.project_members.select(:user_id)
+    end
+
+    # Look for members in source_project that are not in the target project
+    def non_existent_members
+      source_project.members
+                    .select(:id)
+                    .where.not(user_id: @project.project_members.select(:user_id))
+    end
+  end
+end