GRN2-xx: Migration Error now returns 500 and added the option to disable cache (#770)

* Added the option to disable cache

* Remove put statements

app/controllers/application_controller.rb

@@ -49,7 +49,7 @@ class ApplicationController < ActionController::Base
 
   # Show an information page when migration fails and there is a version error.
   def migration_error?
-    render :migration_error unless ENV["DB_MIGRATE_FAILED"].blank?
+    render :migration_error, status: 500 unless ENV["DB_MIGRATE_FAILED"].blank?
   end
 
   def maintenance_mode?

config/application.rb

@@ -118,6 +118,9 @@ module Greenlight
 
     config.google_analytics = ENV["GOOGLE_ANALYTICS_TRACKING_ID"].present?
 
+    # Will always be true unless explicitly set to false
+    config.enable_cache = ENV["ENABLE_CACHED_PROVIDER"] != "false"
+
     # MAINTENANCE
     config.maintenance_window = ENV["MAINTENANCE_WINDOW"]
     config.maintenance_mode = ENV["MAINTENANCE_MODE"] == "true"

lib/bbb_api.rb

@@ -28,7 +28,8 @@ module BbbApi
     raise "Provider not included." if !provider || provider.empty?
 
     cached_provider = Rails.cache.fetch("#{provider}/#{route}")
-    return cached_provider unless cached_provider.nil?
+    # Return cached result if the value exists and cache is enabled
+    return cached_provider if !cached_provider.nil? && Rails.configuration.enable_cache
 
     # Build the URI.
     uri = encode_bbb_url(