1 files changed, 19 insertions, 0 deletions
diff --git a/app/validators/gitlab/emoji_name_validator.rb b/app/validators/gitlab/emoji_name_validator.rb
new file mode 100644
index 00000000000..a9092d0194f
--- /dev/null
+++ b/app/validators/gitlab/emoji_name_validator.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+# Gitlab::EmojiNameValidator
+#
+# Validates that the provided value matches an indexed emoji alpha code
+#
+# @example Usage
+#    class AwardEmoji < ApplicationRecord
+#      validate :name, 'gitlab/emoji_name':  true
+#    end
+module Gitlab
+  class EmojiNameValidator < ActiveModel::EachValidator
+    def validate_each(record, attribute, value)
+      unless TanukiEmoji.find_by_alpha_code(value.to_s)
+        record.errors.add(attribute, (options[:message] || 'is not a valid emoji name'))
+      end
+    end
+  end
+end