Run rails upgrade task

next bundle exec rails app:update

config/initializers/ajax_datatables_rails.rb

@@ -1,6 +0,0 @@
-# frozen_string_literal: true
-
-AjaxDatatablesRails.configure do |config|
-  config.db_adapter = Rails.configuration.database_configuration[Rails.env]['adapter'].to_sym
-  config.orm = :active_record
-end

config/initializers/application_controller_renderer.rb

@@ -1,6 +0,0 @@
-# Be sure to restart your server when you modify this file.
-
-# ApplicationController.renderer.defaults.merge!(
-#   http_host: 'example.org',
-#   https: false
-# )

config/initializers/assets.rb

@@ -3,9 +3,10 @@
 # Version of your assets, change this if you want to expire all your assets.
 Rails.application.config.assets.version = '1.0'
 
-# Add additional assets to the asset load path
+# Add additional assets to the asset load path.
 # Rails.application.config.assets.paths << Emoji.images_path
 
 # Precompile additional assets.
-# application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
-# Rails.application.config.assets.precompile += %w( search.js )
+# application.js, application.css, and all non-JS/CSS in the app/assets
+# folder are already added.
+# Rails.application.config.assets.precompile += %w( admin.js admin.css )

config/initializers/backtrace_silencers.rb

@@ -1,7 +1,8 @@
 # Be sure to restart your server when you modify this file.
 
 # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
-# Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ }
+# Rails.backtrace_cleaner.add_silencer { |line| /my_noisy_library/.match?(line) }
 
-# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code.
-# Rails.backtrace_cleaner.remove_silencers!
+# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code
+# by setting BACKTRACE=1 before calling your invocation, like "BACKTRACE=1 ./bin/rails runner 'MyClass.perform'".
+Rails.backtrace_cleaner.remove_silencers! if ENV['BACKTRACE']

config/initializers/content_security_policy.rb

@@ -0,0 +1,28 @@
+# Be sure to restart your server when you modify this file.
+
+# Define an application-wide content security policy
+# For further information see the following documentation
+# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
+
+# Rails.application.config.content_security_policy do |policy|
+#   policy.default_src :self, :https
+#   policy.font_src    :self, :https, :data
+#   policy.img_src     :self, :https, :data
+#   policy.object_src  :none
+#   policy.script_src  :self, :https
+#   policy.style_src   :self, :https
+
+#   # Specify URI for violation reports
+#   # policy.report_uri "/csp-violation-report-endpoint"
+# end
+
+# If you are using UJS then enable automatic nonce generation
+# Rails.application.config.content_security_policy_nonce_generator = -> request { SecureRandom.base64(16) }
+
+# Set the nonce only to specific directives
+# Rails.application.config.content_security_policy_nonce_directives = %w(script-src)
+
+# Report CSP violations to a specified URI
+# For further information see the following documentation:
+# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
+# Rails.application.config.content_security_policy_report_only = true

config/initializers/cookies_serializer.rb

@@ -2,4 +2,4 @@
 
 # Specify a serializer for the signed and encrypted cookie jars.
 # Valid options are :json, :marshal, and :hybrid.
-Rails.application.config.action_dispatch.cookies_serializer = :marshal
+Rails.application.config.action_dispatch.cookies_serializer = :json

config/initializers/delayed_job.rb

@@ -0,0 +1 @@
+Rails.application.config.active_job.queue_adapter = :delayed_job

config/initializers/filter_parameter_logging.rb

@@ -1,4 +1,6 @@
 # Be sure to restart your server when you modify this file.
 
 # Configure sensitive parameters which will be filtered from the log file.
-Rails.application.config.filter_parameters += [:password]
+Rails.application.config.filter_parameters += [
+  :passw, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn
+]

config/initializers/new_framework_defaults.rb

@@ -1,22 +0,0 @@
-# Be sure to restart your server when you modify this file.
-#
-# This file contains migration options to ease your Rails 5.0 upgrade.
-#
-# Once upgraded flip defaults one by one to migrate to the new default.
-#
-# Read the Guide for Upgrading Ruby on Rails for more info on each option.
-
-Rails.application.config.action_controller.raise_on_unfiltered_parameters = true
-
-# Enable per-form CSRF tokens. Previous versions had false.
-Rails.application.config.action_controller.per_form_csrf_tokens = false
-
-# Enable origin-checking CSRF mitigation. Previous versions had false.
-Rails.application.config.action_controller.forgery_protection_origin_check = false
-
-# Make Ruby 2.4 preserve the timezone of the receiver when calling `to_time`.
-# Previous versions had false.
-ActiveSupport.to_time_preserves_timezone = false
-
-# Require `belongs_to` associations by default. Previous versions had false.
-Rails.application.config.active_record.belongs_to_required_by_default = false

config/initializers/new_framework_defaults_6_1.rb

@@ -0,0 +1,67 @@
+# Be sure to restart your server when you modify this file.
+#
+# This file contains migration options to ease your Rails 6.1 upgrade.
+#
+# Once upgraded flip defaults one by one to migrate to the new default.
+#
+# Read the Guide for Upgrading Ruby on Rails for more info on each option.
+
+# Support for inversing belongs_to -> has_many Active Record associations.
+# Rails.application.config.active_record.has_many_inversing = true
+
+# Track Active Storage variants in the database.
+# Rails.application.config.active_storage.track_variants = true
+
+# Apply random variation to the delay when retrying failed jobs.
+# Rails.application.config.active_job.retry_jitter = 0.15
+
+# Stop executing `after_enqueue`/`after_perform` callbacks if
+# `before_enqueue`/`before_perform` respectively halts with `throw :abort`.
+# Rails.application.config.active_job.skip_after_callbacks_if_terminated = true
+
+# Specify cookies SameSite protection level: either :none, :lax, or :strict.
+#
+# This change is not backwards compatible with earlier Rails versions.
+# It's best enabled when your entire app is migrated and stable on 6.1.
+# Rails.application.config.action_dispatch.cookies_same_site_protection = :lax
+
+# Generate CSRF tokens that are encoded in URL-safe Base64.
+#
+# This change is not backwards compatible with earlier Rails versions.
+# It's best enabled when your entire app is migrated and stable on 6.1.
+# Rails.application.config.action_controller.urlsafe_csrf_tokens = true
+
+# Specify whether `ActiveSupport::TimeZone.utc_to_local` returns a time with an
+# UTC offset or a UTC time.
+# ActiveSupport.utc_to_local_returns_utc_offset_times = true
+
+# Change the default HTTP status code to `308` when redirecting non-GET/HEAD
+# requests to HTTPS in `ActionDispatch::SSL` middleware.
+# Rails.application.config.action_dispatch.ssl_default_redirect_status = 308
+
+# Use new connection handling API. For most applications this won't have any
+# effect. For applications using multiple databases, this new API provides
+# support for granular connection swapping.
+# Rails.application.config.active_record.legacy_connection_handling = false
+
+# Make `form_with` generate non-remote forms by default.
+# Rails.application.config.action_view.form_with_generates_remote_forms = false
+
+# Set the default queue name for the analysis job to the queue adapter default.
+# Rails.application.config.active_storage.queues.analysis = nil
+
+# Set the default queue name for the purge job to the queue adapter default.
+# Rails.application.config.active_storage.queues.purge = nil
+
+# Set the default queue name for the incineration job to the queue adapter default.
+# Rails.application.config.action_mailbox.queues.incineration = nil
+
+# Set the default queue name for the routing job to the queue adapter default.
+# Rails.application.config.action_mailbox.queues.routing = nil
+
+# Set the default queue name for the mail deliver job to the queue adapter default.
+# Rails.application.config.action_mailer.deliver_later_queue_name = nil
+
+# Generate a `Link` header that gives a hint to modern browsers about
+# preloading assets when using `javascript_include_tag` and `stylesheet_link_tag`.
+# Rails.application.config.action_view.preload_links_header = true

config/initializers/wrap_parameters.rb

@@ -1,5 +1,5 @@
 # Be sure to restart your server when you modify this file.
-#
+
 # This file contains settings for ActionController::ParamsWrapper which
 # is enabled by default.
 
@@ -8,7 +8,7 @@ ActiveSupport.on_load(:action_controller) do
   wrap_parameters format: [:json]
 end
 
-# Disable root element in JSON by default.
-ActiveSupport.on_load(:active_record) do
-  self.include_root_in_json = false
-end
+# To enable root element in JSON for ActiveRecord objects.
+# ActiveSupport.on_load(:active_record) do
+#   self.include_root_in_json = true
+# end