Update sort options for issues list

Increase sort options for issues list from updated_at and create_at,
to include more options close to what is required in actual issue list
UI.

This helps us to use REST API for issues list with sorting capabilities

https://gitlab.com/gitlab-org/gitlab-ce/issues/57402

2 files changed, 7 insertions, 4 deletions

diff --git a/lib/api/helpers/issues_helpers.rb b/lib/api/helpers/issues_helpers.rb
index 5b7199fddb0..a8480bb9339 100644
--- a/lib/api/helpers/issues_helpers.rb
+++ b/lib/api/helpers/issues_helpers.rb
@@ -27,6 +27,10 @@ module API
         ]
       end
 
+      def self.sort_options
+        %w[created_at updated_at priority due_date relative_position label_priority milestone_due popularity]
+      end
+
       def issue_finder(args = {})
         args = declared_params.merge(args)
 
@@ -34,15 +38,14 @@ module API
         args[:milestone_title] ||= args.delete(:milestone)
         args[:label_name] ||= args.delete(:labels)
         args[:scope] = args[:scope].underscore if args[:scope]
+        args[:sort] = "#{args[:order_by]}_#{args[:sort]}"
 
         IssuesFinder.new(current_user, args)
       end
 
       def find_issues(args = {})
         finder = issue_finder(args)
-        issues = finder.execute.with_api_entity_associations
-
-        issues.reorder(order_options_with_tie_breaker) # rubocop: disable CodeReuse/ActiveRecord
+        finder.execute.with_api_entity_associations
       end
 
       def issues_statistics(args = {})
diff --git a/lib/api/issues.rb b/lib/api/issues.rb
index 7819c2de515..e16eeef202c 100644
--- a/lib/api/issues.rb
+++ b/lib/api/issues.rb
@@ -44,7 +44,7 @@ module API
         optional :with_labels_details, type: Boolean, desc: 'Return more label data than just lable title', default: false
         optional :state, type: String, values: %w[opened closed all], default: 'all',
                  desc: 'Return opened, closed, or all issues'
-        optional :order_by, type: String, values: %w[created_at updated_at], default: 'created_at',
+        optional :order_by, type: String, values: Helpers::IssuesHelpers.sort_options, default: 'created_at',
                  desc: 'Return issues ordered by `created_at` or `updated_at` fields.'
         optional :sort, type: String, values: %w[asc desc], default: 'desc',
                  desc: 'Return issues sorted in `asc` or `desc` order.'