fix: undefined method 'assets' for an instance

lib/chosen-rails.rb

@@ -6,8 +6,10 @@ module Rails
 end
 
 case ::Rails.version.to_s
+when /^8/
+  require 'chosen-rails/engine8'
 when /^(4|5|6|7)/
-  require 'chosen-rails/engine'
+  require 'chosen-rails/engine4'
 when /^3\.[12]/
   require 'chosen-rails/engine3'
 when /^3\.[0]/

lib/chosen-rails/engine.rb → lib/chosen-rails/engine4.rb

@@ -1,6 +1,6 @@
 module Chosen
   module Rails
-    class Engine < ::Rails::Engine
+    class Engine4 < ::Rails::Engine
       config.assets.precompile += %w(
         chosen-sprite*.png
       )

lib/chosen-rails/engine8.rb

@@ -0,0 +1,15 @@
+module Chosen
+  module Rails
+    class Engine8 < ::Rails::Engine
+      initializer 'chosen.assets.precompile' do |app|
+        app.config.assets.precompile += %w(
+          chosen-sprite*.png
+        )
+      end
+
+      rake_tasks do
+        load 'chosen-rails/tasks.rake'
+      end
+    end
+  end
+end