Update to ror6

backend/.gitignore

@@ -20,6 +20,8 @@
 /node_modules
 /yarn-error.log
 
+/vendor
+
 .byebug_history
 
 /.idea

backend/Dockerfile

@@ -6,7 +6,7 @@ RUN apk add --update tzdata && \
 
 RUN apk add --update --virtual runtime-deps nodejs libffi-dev readline sqlite sqlite-dev
 
-RUN apk add --update --virtual build-deps build-base libc-dev linux-headers libxml2-dev libxslt-dev readline-dev
+RUN apk add --update --virtual build-deps build-base libc-dev linux-headers libxml2-dev libxslt-dev readline-dev ruby-dev
 
 WORKDIR /tmp
 ADD /Gemfile* ./

backend/Gemfile

@@ -6,61 +6,61 @@ git_source(:github) do |repo_name|
 end
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem 'rails', '~> 5.2', '>= 5.2.2'
-gem 'railties', '~> 5.2', '>= 5.2.2'
-gem 'bootsnap', '~> 1.4', '>= 1.4.1'
+gem 'rails', '~> 6.0'
+gem 'railties', '~> 6.0'
+gem 'bootsnap', '~> 1.4', '>= 1.4.5'
 # Use sqlite3 as the database for Active Record
-gem 'sqlite3', '~> 1.3.13'
+gem 'sqlite3', '~> 1.4', '>= 1.4.1'
 # Use Puma as the app server
-gem 'puma', '~> 3.7'
+gem 'puma', '~> 4.1', '>= 4.1.1'
 # Use SCSS for stylesheets
-gem 'sass-rails', '~> 5.0'
+gem 'sass-rails', '~> 6.0'
 # Use Uglifier as compressor for JavaScript assets
-gem 'uglifier', '>= 1.3.0'
+gem 'uglifier', '~> 4.1', '>= 4.1.20'
 # See https://github.com/rails/execjs#readme for more supported runtimes
 # gem 'therubyracer', platforms: :ruby
 
 # Use CoffeeScript for .coffee assets and views
-gem 'coffee-rails', '~> 4.2'
+gem 'coffee-rails', '~> 5.0'
 # Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
-gem 'turbolinks', '~> 5'
+gem 'turbolinks', '~> 5.2'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
-gem 'jbuilder', '~> 2.5'
+gem 'jbuilder', '~> 2.9', '>= 2.9.1'
 # Use Redis adapter to run Action Cable in production
-gem 'redis', '~> 3.0'
+gem 'redis', '~> 4.1', '>= 4.1.2'
 # Use ActiveModel has_secure_password
-gem 'bcrypt', '~> 3.1.7'
+gem 'bcrypt', '~> 3.1', '>= 3.1.13'
 
 # Use Capistrano for deployment
 # gem 'capistrano-rails', group: :development
 
-gem 'rack-cors', :require => 'rack/cors'
+gem 'rack-cors', '~> 1.0', '>= 1.0.3'
 
-gem 'mongoid', '~> 6.1.0'
+gem 'mongoid', '~> 7.1', '>= 7.1.2'
 
-gem 'devise', '~> 4.6', '>= 4.6.1'
+gem 'devise', '~> 4.7', '>= 4.7.1'
 
 gem 'gen-data', '~> 0.3.11'
 
-gem 'rest-client', '~> 2.0', '>= 2.0.2'
+gem 'rest-client', '~> 2.1'
 
-gem 'jwt', '~> 1.5', '>= 1.5.4'
+gem 'jwt', '~> 2.2', '>= 2.2.1'
 
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
   # Adds support for Capybara system testing and selenium driver
-  gem 'capybara', '~> 2.13'
+  gem 'capybara', '~> 3.29'
   gem 'selenium-webdriver'
 end
 
 group :development do
   # Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
-  gem 'web-console', '>= 3.3.0'
-  gem 'listen', '>= 3.0.5', '< 3.2'
+  gem 'web-console', '~> 4.0', '>= 4.0.1'
+  gem 'listen', '~> 3.1', '>= 3.1.5'
   # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
-  gem 'spring'
-  gem 'spring-watcher-listen', '~> 2.0.0'
+  gem 'spring', '~> 2.1'
+  gem 'spring-watcher-listen', '~> 2.0', '>= 2.0.1'
 end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem

backend/bin/setup

@@ -1,6 +1,5 @@
 #!/usr/bin/env ruby
 require 'fileutils'
-include FileUtils
 
 # path to your application root.
 APP_ROOT = File.expand_path('..', __dir__)
@@ -9,8 +8,9 @@ def system!(*args)
   system(*args) || abort("\n== Command #{args} failed ==")
 end
 
-chdir APP_ROOT do
-  # This script is a starting point to setup your application.
+FileUtils.chdir APP_ROOT do
+  # This script is a way to setup or update your development environment automatically.
+  # This script is idempotent, so that you can run it at anytime and get an expectable outcome.
   # Add necessary setup steps to this file.
 
   puts '== Installing dependencies =='
@@ -19,11 +19,11 @@ chdir APP_ROOT do
 
   # puts "\n== Copying sample files =="
   # unless File.exist?('config/database.yml')
-  #   cp 'config/database.yml.sample', 'config/database.yml'
+  #   FileUtils.cp 'config/database.yml.sample', 'config/database.yml'
   # end
 
   puts "\n== Preparing database =="
-  system! 'bin/rails db:setup'
+  system! 'bin/rails db:prepare'
 
   puts "\n== Removing old logs and tempfiles =="
   system! 'bin/rails log:clear tmp:clear'

backend/config/application.rb

@@ -8,6 +8,8 @@
 require "active_storage/engine"
 require "action_controller/railtie"
 require "action_mailer/railtie"
+require "action_mailbox/engine"
+require "action_text/engine"
 require "action_view/railtie"
 require "action_cable/engine"
 # require "sprockets/railtie"
@@ -24,7 +26,7 @@ class Application < Rails::Application
     # Skip views, helpers and assets when generating a new resource.
     config.api_only = true
     # Initialize configuration defaults for originally generated Rails version.
-    config.load_defaults 5.1
+    config.load_defaults 6.0
     config.generators do |g|
       g.orm :mongoid
     end

backend/config/environments/development.rb

@@ -15,8 +15,6 @@
   # Enable/disable caching. By default caching is disabled.
   # Run rails dev:cache to toggle caching.
   if Rails.root.join('tmp', 'caching-dev.txt').exist?
-    config.action_controller.perform_caching = true
-
     config.cache_store = :memory_store
     config.public_file_server.headers = {
       'Cache-Control' => "public, max-age=#{2.days.to_i}"
@@ -27,7 +25,7 @@
     config.cache_store = :null_store
   end
 
-  # Store uploaded files on the local file system (see config/storage.yml for options)
+  # Store uploaded files on the local file system (see config/storage.yml for options).
   config.active_storage.service = :local
 
   # Don't care if the mailer can't send.
@@ -45,7 +43,7 @@
   config.active_record.verbose_query_logs = true
 
 
-  # Raises error for missing translations
+  # Raises error for missing translations.
   # config.action_view.raise_on_missing_translations = true
 
   # Use an evented file watcher to asynchronously detect changes in source code,

backend/config/environments/production.rb

@@ -12,7 +12,6 @@
 
   # Full error reports are disabled and caching is turned on.
   config.consider_all_requests_local       = false
-  config.action_controller.perform_caching = true
 
   # Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
   # or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
@@ -29,10 +28,10 @@
   # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
-  # Store uploaded files on the local file system (see config/storage.yml for options)
+  # Store uploaded files on the local file system (see config/storage.yml for options).
   config.active_storage.service = :local
 
-  # Mount Action Cable outside main process or domain
+  # Mount Action Cable outside main process or domain.
   # config.action_cable.mount_path = nil
   # config.action_cable.url = 'wss://example.com/cable'
   # config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]
@@ -50,9 +49,9 @@
   # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
 
-  # Use a real queuing backend for Active Job (and separate queues per environment)
+  # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter     = :resque
-  # config.active_job.queue_name_prefix = "backend_#{Rails.env}"
+  # config.active_job.queue_name_prefix = "backend_production"
 
   config.action_mailer.perform_caching = false
 
@@ -82,4 +81,25 @@
 
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
+
+  # Inserts middleware to perform automatic connection switching.
+  # The `database_selector` hash is used to pass options to the DatabaseSelector
+  # middleware. The `delay` is used to determine how long to wait after a write
+  # to send a subsequent read to the primary.
+  #
+  # The `database_resolver` class is used by the middleware to determine which
+  # database is appropriate to use based on the time delay.
+  #
+  # The `database_resolver_context` class is used by the middleware to set
+  # timestamps for the last write to the primary. The resolver uses the context
+  # class timestamps to determine how long to wait before reading from the
+  # replica.
+  #
+  # By default Rails will store a last write timestamp in the session. The
+  # DatabaseSelector middleware is designed as such you can define your own
+  # strategy for connection switching and pass that into the middleware through
+  # these configuration options.
+  # config.active_record.database_selector = { delay: 2.seconds }
+  # config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
+  # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
 end

backend/config/environments/test.rb

@@ -1,11 +1,12 @@
+# The test environment is used exclusively to run your application's
+# test suite. You never need to work with it otherwise. Remember that
+# your test database is "scratch space" for the test suite and is wiped
+# and recreated between test runs. Don't rely on the data there!
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
-
-  # The test environment is used exclusively to run your application's
-  # test suite. You never need to work with it otherwise. Remember that
-  # your test database is "scratch space" for the test suite and is wiped
-  # and recreated between test runs. Don't rely on the data there!
-  config.cache_classes = true
+
+  config.cache_classes = false
 
   # Do not eager load code on boot. This avoids loading your whole application
   # just for the purpose of running a single test. If you are using a tool that
@@ -21,14 +22,15 @@
   # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
+  config.cache_store = :null_store
 
   # Raise exceptions instead of rendering exception templates.
   config.action_dispatch.show_exceptions = false
 
   # Disable request forgery protection in test environment.
   config.action_controller.allow_forgery_protection = false
 
-  # Store uploaded files on the local file system in a temporary directory
+  # Store uploaded files on the local file system in a temporary directory.
   config.active_storage.service = :test
 
   config.action_mailer.perform_caching = false
@@ -41,6 +43,6 @@
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
 
-  # Raises error for missing translations
+  # Raises error for missing translations.
   # config.action_view.raise_on_missing_translations = true
 end

backend/config/initializers/new_framework_defaults_6_0.rb

@@ -0,0 +1,45 @@
+# Be sure to restart your server when you modify this file.
+#
+# This file contains migration options to ease your Rails 6.0 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.
+
+# Don't force requests from old versions of IE to be UTF-8 encoded.
+# Rails.application.config.action_view.default_enforce_utf8 = false
+
+# Embed purpose and expiry metadata inside signed and encrypted
+# cookies for increased security.
+#
+# This option is not backwards compatible with earlier Rails versions.
+# It's best enabled when your entire app is migrated and stable on 6.0.
+# Rails.application.config.action_dispatch.use_cookies_with_metadata = true
+
+# Change the return value of `ActionDispatch::Response#content_type` to Content-Type header without modification.
+# Rails.application.config.action_dispatch.return_only_media_type_on_content_type = false
+
+# Return false instead of self when enqueuing is aborted from a callback.
+# Rails.application.config.active_job.return_false_on_aborted_enqueue = true
+
+# Send Active Storage analysis and purge jobs to dedicated queues.
+# Rails.application.config.active_storage.queues.analysis = :active_storage_analysis
+# Rails.application.config.active_storage.queues.purge    = :active_storage_purge
+
+# When assigning to a collection of attachments declared via `has_many_attached`, replace existing
+# attachments instead of appending. Use #attach to add new attachments without replacing existing ones.
+# Rails.application.config.active_storage.replace_on_assign_to_many = true
+
+# Use ActionMailer::MailDeliveryJob for sending parameterized and normal mail.
+#
+# The default delivery jobs (ActionMailer::Parameterized::DeliveryJob, ActionMailer::DeliveryJob),
+# will be removed in Rails 6.1. This setting is not backwards compatible with earlier Rails versions.
+# If you send mail in the background, job workers need to have a copy of
+# MailDeliveryJob to ensure all delivery jobs are processed properly.
+# Make sure your entire app is migrated and stable on 6.0 before using this setting.
+# Rails.application.config.action_mailer.delivery_job = "ActionMailer::MailDeliveryJob"
+
+# Enable the same cache key to be reused when the object being cached of type
+# `ActiveRecord::Relation` changes by moving the volatile information (max updated at and count)
+# of the relation's cache key into the cache version to support recycling cache key.
+# Rails.application.config.active_record.collection_cache_versioning = true

backend/config/locales/en.yml

@@ -27,7 +27,7 @@
 #   'true': 'foo'
 #
 # To learn more, please read the Rails Internationalization guide
-# available at http://guides.rubyonrails.org/i18n.html.
+# available at https://guides.rubyonrails.org/i18n.html.
 
 en:
   hello: "Hello world"

backend/config/puma.rb

@@ -4,8 +4,9 @@
 # the maximum value specified for Puma. Default is set to 5 threads for minimum
 # and maximum; this matches the default thread size of Active Record.
 #
-threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
-threads threads_count, threads_count
+max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
+min_threads_count = ENV.fetch("RAILS_MIN_THREADS") { max_threads_count }
+threads min_threads_count, max_threads_count
 
 # Specifies the `port` that Puma will listen on to receive requests; default is 3000.
 #
@@ -15,8 +16,11 @@
 #
 environment ENV.fetch("RAILS_ENV") { "development" }
 
+# Specifies the `pidfile` that Puma will use.
+pidfile ENV.fetch("PIDFILE") { "tmp/pids/web.pid" }
+
 # Specifies the number of `workers` to boot in clustered mode.
-# Workers are forked webserver processes. If using threads and workers together
+# Workers are forked web server processes. If using threads and workers together
 # the concurrency of the application would be max `threads` * `workers`.
 # Workers do not work on JRuby or Windows (both of which do not support
 # processes).

backend/config/spring.rb

@@ -1,6 +1,6 @@
-%w[
-  .ruby-version
-  .rbenv-vars
-  tmp/restart.txt
-  tmp/caching-dev.txt
-].each { |path| Spring.watch(path) }
+Spring.watch(
+  ".ruby-version",
+  ".rbenv-vars",
+  "tmp/restart.txt",
+  "tmp/caching-dev.txt"
+)

backend/db/migrate/20190915013425_add_foreign_key_constraint_to_active_storage_attachments_for_blob_id.active_storage.rb

@@ -0,0 +1,10 @@
+# This migration comes from active_storage (originally 20180723000244)
+class AddForeignKeyConstraintToActiveStorageAttachmentsForBlobId < ActiveRecord::Migration[6.0]
+  def up
+    return if foreign_key_exists?(:active_storage_attachments, column: :blob_id)
+
+    if table_exists?(:active_storage_blobs)
+      add_foreign_key :active_storage_attachments, :active_storage_blobs, column: :blob_id
+    end
+  end
+end