1 files changed, 19 insertions, 0 deletions
diff --git a/app/models/namespace_setting.rb b/app/models/namespace_setting.rb
index 53bfa3d979e..6f31208f28b 100644
--- a/app/models/namespace_setting.rb
+++ b/app/models/namespace_setting.rb
@@ -3,7 +3,26 @@
 class NamespaceSetting < ApplicationRecord
   belongs_to :namespace, inverse_of: :namespace_settings
 
+  validate :default_branch_name_content
+  validate :allow_mfa_for_group
+
+  NAMESPACE_SETTINGS_PARAMS = [:default_branch_name].freeze
+
   self.primary_key = :namespace_id
+
+  def default_branch_name_content
+    return if default_branch_name.nil?
+
+    if default_branch_name.blank?
+      errors.add(:default_branch_name, "can not be an empty string")
+    end
+  end
+
+  def allow_mfa_for_group
+    if namespace&.subgroup? && allow_mfa_for_subgroups == false
+      errors.add(:allow_mfa_for_subgroups, _('is not allowed since the group is not top-level group.'))
+    end
+  end
 end
 
 NamespaceSetting.prepend_if_ee('EE::NamespaceSetting')