From 4cf031ee13b8bda88fdf2ae23a7d6632deeac90c Mon Sep 17 00:00:00 2001
From: Matt Jankowski <matt@jankowski.online>
Date: Mon, 6 Jan 2025 13:23:05 -0500
Subject: [PATCH] Extricate `Invite` constants for code generation (#33472)

---
 app/models/invite.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/app/models/invite.rb b/app/models/invite.rb
index ea095a3ac1..d1981f16ad 100644
--- a/app/models/invite.rb
+++ b/app/models/invite.rb
@@ -20,6 +20,9 @@ class Invite < ApplicationRecord
   include Expireable
 
   COMMENT_SIZE_LIMIT = 420
+  ELIGIBLE_CODE_CHARACTERS = [*('a'..'z'), *('A'..'Z'), *('0'..'9')].freeze
+  HOMOGLYPHS = %w(0 1 I l O).freeze
+  VALID_CODE_CHARACTERS = ELIGIBLE_CODE_CHARACTERS - HOMOGLYPHS
 
   belongs_to :user, inverse_of: :invites
   has_many :users, inverse_of: :invite, dependent: nil
@@ -38,7 +41,7 @@ class Invite < ApplicationRecord
 
   def set_code
     loop do
-      self.code = ([*('a'..'z'), *('A'..'Z'), *('0'..'9')] - %w(0 1 I l O)).sample(8).join
+      self.code = VALID_CODE_CHARACTERS.sample(8).join
       break if Invite.find_by(code: code).nil?
     end
   end