Prepare to support ruby 3.3.

app/helpers/custom_announcements_helper.rb

@@ -320,9 +320,9 @@ module CustomAnnouncementsHelper
     if @target_action == "index"
       filename = overridehtml.nil? ? params[:layout_type] : overridehtml
       f = File.join(Rails.root, 'app', 'templates', "#{@key}", 'modules', 'custom_announcement', "#{filename}.html.erb")
-      if !File.exists?f
+      if !File.exist?(f)
         f = File.join(Rails.root, 'app', 'templates', "#{@key}", 'modules', 'custom_announcement', "index.html.erb")
-        if !File.exists?f
+        if !File.exist?(f)
           return "<div class='well'>Maybe the administrator has changed the theme, please select the index page design again from the page settings.</div>".html_safe
         end
       end
@@ -362,7 +362,7 @@ module CustomAnnouncementsHelper
     else
       filename = overridehtml.nil? ? @target_action : overridehtml
       f = File.join(Rails.root, 'app', 'templates', "#{@key}", 'modules', 'custom_announcement', "#{filename}.html.erb")
-      if File.exists?f
+      if File.exist?(f)
         file =  File.open(f)
         doc = Nokogiri::HTML(file, nil, "UTF-8")
         file.close
@@ -464,7 +464,7 @@ module CustomAnnouncementsHelper
     layout_types = []
     @key = Site.first.template
     f = File.join("#{Rails.root}/app/templates/#{@key}/modules/#{module_app}/info.json")
-    if File.exists?f
+    if File.exist?(f)
       info = File.read(f)
       hash = JSON.parse(info) rescue {}
       frontends = hash["frontend"] || []

lib/custom_announcement/engine.rb

@@ -2,6 +2,7 @@ require "yaml"
 module CustomAnnouncement
   class Engine < ::Rails::Engine
     initializer "custom_announcement" do
+      Rails.application.config.to_prepare do
         begin
           translate_data = Dir["#{CustomAnnouncement::Engine.root}/config/locales/*.yml"] .map{|yaml_file| YAML.load(File.read(yaml_file))}
           data = {}
@@ -152,3 +153,4 @@ module CustomAnnouncement
       end
     end
   end
+end