Rails Docker + Rails 6 Application setup This tutorial will help Dockerify Rails 6 application using Postgres as database. We will see how to write Dockerfile and docker-compose file in order to create a docker image of Rails application and
Rails Rails 6 introduces ActiveRecord::Relation#pick method Rails 6 adds ActiveRecord::Relation pick method to select values of columns from the first record matching where conditions. This is a shorthand for plucking column names, limiting records and then finding first value
Rails Rails 6 Parallel Tests Rails 6 applications will run tests in parallel by default. The number of parallel workers to run tests can be customised. Moreover, all the parallel worker processes will have their own temporary database
Rails Rails 6 ActiveRecord disable enum scopes Rails 6 ActiveRecord added an option to be able to disable scopes generated by Rails enums by default. These scopes can cause conflict with method names on model or in general Rails application.
Rails Rails 6 ActiveRecord supports Multi DB connection switching Rails 6 ActiveRecord supports Multiple database connection switching. Moreover, we can use different database connections for reading / writing with use of replicas to improve performance of the application.
Rails Rails usage of after_commit vs after_save Rails provides ActiveRecord callbacks to perform an action after a record is updated in the database. But, when to use after_commit vs after_save really depends on the activities that need to be done