add comments on entries

app/models/comment.rb

@@ -1,6 +1,23 @@
 class Comment < ApplicationRecord
   belongs_to :user
   belongs_to :commentable, polymorphic: true
+  belongs_to :language,
+             class_name: "SupportedLanguage",
+             foreign_key: :language_code,
+             primary_key: :code,
+             optional: true
 
   validates :body, presence: true
+
+  after_create_commit :notify_users
+
+  private
+
+  def notify_users
+    return if language_code.blank?
+
+    # Placeholder for notification logic once we decide delivery channels.
+    users_to_notify = User.where(primary_language: language_code).where.not(id: user_id)
+    # puts "Notifying users: #{users_to_notify.pluck(:email).join(", ")}"
+  end
 end