From b6a5268e1b66303491efca3a5d1b310442c92e68 Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Sat, 16 Feb 2019 05:23:47 +0100
Subject: [PATCH] Add registrations attribute to instance entity in REST API
 (#10060)

Fix #9350
---
 app/serializers/rest/instance_serializer.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/serializers/rest/instance_serializer.rb b/app/serializers/rest/instance_serializer.rb
index e3e64ea876..216808ffb9 100644
--- a/app/serializers/rest/instance_serializer.rb
+++ b/app/serializers/rest/instance_serializer.rb
@@ -5,7 +5,7 @@ class REST::InstanceSerializer < ActiveModel::Serializer
 
   attributes :uri, :title, :description, :email,
              :version, :urls, :stats, :thumbnail,
-             :languages
+             :languages, :registrations
 
   has_one :contact_account, serializer: REST::AccountSerializer
 
@@ -51,6 +51,10 @@ class REST::InstanceSerializer < ActiveModel::Serializer
     [I18n.default_locale]
   end
 
+  def registrations
+    Setting.open_registrations && !Rails.configuration.x.single_user_mode
+  end
+
   private
 
   def instance_presenter