patch user preference schema for backlogs

app/models/user_preferences/schema.rb

@@ -33,6 +33,7 @@ class UserPreferences::Schema
     PATH = Rails.root.join('config/schemas/api/user_preferences.schema.json')
 
     # TODO: check if Time zones can be verified within the schema
+    # TODO: allow extension by plugins
 
     def schema
       @schema ||= JSON::parse(File.read(PATH))

modules/backlogs/lib/open_project/backlogs/engine.rb

@@ -126,6 +126,7 @@ module OpenProject::Backlogs
     patch_with_namespace :WorkPackages, :SetAttributesService
     patch_with_namespace :WorkPackages, :BaseContract
     patch_with_namespace :Versions, :RowCell
+    patch_with_namespace :UserPreferences, :Schema
 
     config.to_prepare do
       next if Versions::BaseContract.included_modules.include?(OpenProject::Backlogs::Patches::Versions::BaseContractPatch)

modules/backlogs/lib/open_project/backlogs/patches/user_preferences/schema_patch.rb

@@ -0,0 +1,60 @@
+#-- copyright
+# OpenProject is an open source project management software.
+# Copyright (C) 2012-2021 the OpenProject GmbH
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See docs/COPYRIGHT.rdoc for more details.
+#++
+
+module OpenProject::Backlogs
+  module Patches
+    module UserPreferences
+      module SchemaPatch
+        def self.included(base)
+          class << base
+            prepend(ClassMethods)
+          end
+        end
+
+        module ClassMethods
+          def schema
+            ret = super
+
+            properties = ret.dig('definitions', 'UserPreferences', 'properties')
+
+            properties['backlogs_task_color'] = {
+              'type' => 'string'
+            }
+
+            properties['backlogs_versions_default_fold_state'] = {
+              'type' => 'string',
+              "enum" => %w[open closed]
+            }
+
+            ret
+          end
+        end
+      end
+    end
+  end
+end

spec/contracts/user_preferences/update_contract_spec.rb

@@ -102,23 +102,6 @@ describe UserPreferences::UpdateContract do
     it_behaves_like 'contract is invalid', settings: :exclusion
   end
 
-  context 'without a hide_mail value' do
-    let(:settings) do
-      {
-        auto_hide_popups: true,
-        comments_sorting: 'desc',
-        daily_reminders: {
-          enabled: true,
-          times: %w[08:00:00+00:00 12:00:00+00:00]
-        },
-        time_zone: 'Brasilia',
-        warn_on_leaving_unsaved: true
-      }
-    end
-
-    it_behaves_like 'contract is invalid', hide_mail: :blank
-  end
-
   context 'with a string for hide_mail' do
     let(:settings) do
       {