diff options
Diffstat (limited to 'lib/api/validations/check_assignees_count.rb')
-rw-r--r-- | lib/api/validations/check_assignees_count.rb | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/api/validations/check_assignees_count.rb b/lib/api/validations/check_assignees_count.rb new file mode 100644 index 00000000000..836ec936b31 --- /dev/null +++ b/lib/api/validations/check_assignees_count.rb @@ -0,0 +1,32 @@ +# frozen_string_literal: true + +module API + module Validations + class CheckAssigneesCount < Grape::Validations::Base + def self.coerce + lambda do |value| + case value + when String, Array + Array.wrap(value) + else + [] + end + end + end + + def validate_param!(attr_name, params) + return if param_allowed?(attr_name, params) + + raise Grape::Exceptions::Validation, + params: [@scope.full_name(attr_name)], + message: "allows one value, but found #{params[attr_name].size}: #{params[attr_name].join(", ")}" + end + + private + + def param_allowed?(attr_name, params) + params[attr_name].size <= 1 + end + end + end +end |