Add array support for labels

* Support label parameter as comma separated and array of strings
for merge requests and issues api endpoints

1 files changed, 24 insertions, 0 deletions

diff --git a/lib/api/validations/types/labels_list.rb b/lib/api/validations/types/labels_list.rb
new file mode 100644
index 00000000000..47cd83c29cf
--- /dev/null
+++ b/lib/api/validations/types/labels_list.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+module API
+  module Validations
+    module Types
+      class LabelsList
+        def self.coerce
+          lambda do |value|
+            case value
+            when String
+              value.split(',').map(&:strip)
+            when Array
+              value.map { |v| v.to_s.split(',').map(&:strip) }.flatten
+            when LabelsList
+              value
+            else
+              []
+            end
+          end
+        end
+      end
+    end
+  end
+end