1 files changed, 22 insertions, 0 deletions
diff --git a/app/services/projects/base_move_relations_service.rb b/app/services/projects/base_move_relations_service.rb
new file mode 100644
index 00000000000..e8fd3ef57e5
--- /dev/null
+++ b/app/services/projects/base_move_relations_service.rb
@@ -0,0 +1,22 @@
+module Projects
+  class BaseMoveRelationsService < BaseService
+    attr_reader :source_project
+    def execute(source_project, remove_remaining_elements: true)
+      return if source_project.blank?
+
+      @source_project = source_project
+
+      true
+    end
+
+    private
+
+    def prepare_relation(relation, id_param = :id)
+      if Gitlab::Database.postgresql?
+        relation
+      else
+        relation.model.where("#{id_param}": relation.pluck(id_param))
+      end
+    end
+  end
+end