Fix validations of reactions limit (#12955)

1 files changed, 7 insertions, 3 deletions

diff --git a/app/validators/reaction_validator.rb b/app/validators/reaction_validator.rb
index be899c89d..494b6041b 100644
--- a/app/validators/reaction_validator.rb
+++ b/app/validators/reaction_validator.rb
@@ -6,10 +6,10 @@ class ReactionValidator < ActiveModel::Validator
   LIMIT = 8
 
   def validate(reaction)
-    return if reaction.name.blank? || reaction.custom_emoji_id.present?
+    return if reaction.name.blank?
 
-    reaction.errors.add(:name, I18n.t('reactions.errors.unrecognized_emoji')) unless unicode_emoji?(reaction.name)
-    reaction.errors.add(:base, I18n.t('reactions.errors.limit_reached')) if limit_reached?(reaction)
+    reaction.errors.add(:name, I18n.t('reactions.errors.unrecognized_emoji')) if reaction.custom_emoji_id.blank? && !unicode_emoji?(reaction.name)
+    reaction.errors.add(:base, I18n.t('reactions.errors.limit_reached')) if new_reaction?(reaction) && limit_reached?(reaction)
   end
 
   private
@@ -18,6 +18,10 @@ class ReactionValidator < ActiveModel::Validator
     SUPPORTED_EMOJIS.include?(name)
   end
 
+  def new_reaction?(reaction)
+    !reaction.announcement.announcement_reactions.where(name: reaction.name).exists?
+  end
+
   def limit_reached?(reaction)
     reaction.announcement.announcement_reactions.where.not(name: reaction.name).count('distinct name') >= LIMIT
   end