IIRR-20: Prevent question from being asked more than once

Author: ABizzinotto

app/jobs/daily_puzzle_job.rb

@@ -2,8 +2,7 @@ class DailyPuzzleJob < ApplicationJob
   queue_as :default
 
   def perform
-    # TODO: Don't allow puzzle to be asked more then once
-    puzzle = Puzzle.order("RANDOM()").first
+    puzzle = Puzzle.where(sent: false).order("RANDOM()").first
     return unless puzzle
 
     Server.where(active: true).each do |server|
@@ -21,6 +20,8 @@ def perform
         puzzle_buttons(puzzle.id)
       )
     end
+
+    puzzle.update!(sent: true)
   end
 
   private

db/migrate/20250323032650_add_sent_to_puzzle.rb

@@ -0,0 +1,5 @@
+class AddSentToPuzzle < ActiveRecord::Migration[8.0]
+  def change
+    add_column :puzzles, :sent, :boolean, null: false, default: false
+  end
+end