1 files changed, 13 insertions, 0 deletions
diff --git a/lib/api/helpers/custom_validators.rb b/lib/api/helpers/custom_validators.rb
index 1058f4e8a5e..c86eae6f2da 100644
--- a/lib/api/helpers/custom_validators.rb
+++ b/lib/api/helpers/custom_validators.rb
@@ -22,9 +22,22 @@ module API
                                                message: "should be an integer, 'None' or 'Any'"
         end
       end
+
+      class ArrayNoneAny < Grape::Validations::Base
+        def validate_param!(attr_name, params)
+          value = params[attr_name]
+
+          return if value.is_a?(Array) ||
+              [IssuableFinder::FILTER_NONE, IssuableFinder::FILTER_ANY].include?(value.to_s.downcase)
+
+          raise Grape::Exceptions::Validation, params: [@scope.full_name(attr_name)],
+                                               message: "should be an array, 'None' or 'Any'"
+        end
+      end
     end
   end
 end
 
 Grape::Validations.register_validator(:absence, ::API::Helpers::CustomValidators::Absence)
 Grape::Validations.register_validator(:integer_none_any, ::API::Helpers::CustomValidators::IntegerNoneAny)
+Grape::Validations.register_validator(:array_none_any, ::API::Helpers::CustomValidators::ArrayNoneAny)