Fix caching

The namespaced env cache needs to be recreated after forking. With the
old method of changing the Rails cache, this was not happening
correctly.

config/application.rb

@@ -26,6 +26,8 @@ module Qpixel
     # Initialize configuration defaults for originally generated Rails version.
     config.load_defaults 6.1
 
+    config.autoload_paths << Rails.root.join('lib')
+
     config.exceptions_app = -> (env) do
       ErrorsController.action(:error).call(env)
     end

config/environments/development.rb

 require 'active_support/core_ext/integer/time'
+require 'namespaced_env_cache'
 
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
@@ -18,9 +19,11 @@ Rails.application.configure do
   # Set the cache store to the redis that was configured in the database.yml
   processed = ERB.new(File.read(Rails.root.join('config', 'database.yml'))).result(binding)
   redis_config = YAML.safe_load(processed, [], [], true)["redis_#{Rails.env}"]
-  config.cache_store = :redis_cache_store, {
+  config.cache_store = QPixel::NamespacedEnvCache.new(
+    ActiveSupport::Cache::RedisCacheStore.new(
       url: "redis://#{redis_config['host']}:#{redis_config['port']}"
-  }
+    )
+  )
 
   # Store uploaded files on the local file system (see config/storage.yml for options).
   config.active_storage.service = :local

config/environments/production.rb

 require 'active_support/core_ext/integer/time'
+require 'namespaced_env_cache'
 
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
@@ -58,7 +59,9 @@ Rails.application.configure do
   config.log_tags = [ :subdomain, :uuid ]
 
   # Use a different cache store in production.
-  config.cache_store = :redis_cache_store, { url: 'redis://localhost:6379/1' }
+  config.cache_store = QPixel::NamespacedEnvCache.new(
+    RedisCacheStore.new(url: 'redis://localhost:6379/1')
+  )
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter     = :resque

config/initializers/namespaced_cache.rb → lib/namespaced_env_cache.rb

@@ -77,5 +77,3 @@ module QPixel
     end
   end
 end
-
-Rails.cache = QPixel::NamespacedEnvCache.new(Rails.cache)