Upgrade to rails 7 (#760)

* Add a Geocoder spec stub

fix a broken test for Checkin::Creator due to Position not saving without a location

* pin countries gem, add explicit sprockets-rails

* bundle update --conservative

fix spec: use allow_blank rather than conditional validation

* pin versions that tried major upgrade

* rename shared example to avoid load warning

* udpate rails to 6.1.7.8

* enable zeitwerk mode (explicitly)

* load 6.1 defaults explicitly

* loosen some patch level restrictions

* regenerate mongoid config

* mongoid 7.5.4

* update mongoid to rails 7.1 compatible version

* rails 7.1 (gem - no app:update yet)

* rails app:update & most 7.1 defaults enabled

* unpin temporary gem versions

* remove duplicate test - covered by fiveable shared example

* remove warning gem

* put simplecov back in bin/rails

* put sprockets require back

* standardrb --fix

* put filtered parameter back in config

* don't need to eager load lib anymore

* development env config
remove old options, clean

* production env config

* test env config

* Enable all 7.1 framework defaults EXCEPT rolling deploy related

* enable 7.1 defaults

* standardrb --fix

Author: thejonroberts

backend/Gemfile

@@ -6,26 +6,27 @@ ruby "3.2.3"
 gem "dotenv-rails", groups: %i[development test]
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem "rails", "~> 6.1.7.7"
+gem "rails", "~> 7.1.0"
 gem "rake"
+gem "sprockets-rails"
 
 # JSON serializer
-gem "active_model_serializers", "0.9.8"
+gem "active_model_serializers", "~> 0.9"
 
 # Use postgresql and mongo as the database for Active Record
-gem "mongoid", "7.3.3"
+gem "mongoid", "8.1.3" # https://www.mongodb.com/docs/mongoid/current/reference/compatibility/#rails-compatibility
 gem "pg"
 
 # Use Puma as the app server
 gem "puma", "5.6.8"
 
 # Authentication libraries
 gem "cancancan", "~> 3.5.0"
-gem "cancancan-mongoid", "2.0.0"
-gem "devise", "4.8.0"
-gem "devise_invitable", "2.0.9"
-gem "omniauth", "1.8.1"
-gem "omniauth-facebook", "3.0.0"
+gem "cancancan-mongoid", "~> 2.0"
+gem "devise", "~> 4.8"
+gem "devise_invitable", "~> 2.0"
+gem "omniauth", "~> 1.8"
+gem "omniauth-facebook", "~> 3.0"
 
 # Colored output to console
 gem "colored"