Hi, it’s Greg. Let’s explore this week’s changes in the Rails codebase.

Raise a descriptive error when a Store column is misconfigured
This pull request improves ActiveRecord::Store to raise a descriptive exception if the column is not either structured (e.g., PostgreSQL hstore/json, or MySQL json) or declared serializable via ActiveRecord.store. Previously, a NoMethodError would be raised when the accessor was read or written, but with this change, a descriptive ConfigurationError is raised.

Don’t enable automatically_invert_plural_associations by default
Because it can cause a lot of hard to detect issues, automatically_invert_plural_associations is turned off by default and you can opt-in if you want to give it a try.

Make devcontainers opt in and create a devcontainer command
This pull request has been created because dev containers will be an opt in feature in Rails 7.2. So, new apps will only get a devcontainer if you pass the --devcontainer flag to rails new. Additionally, you will be able to generate a devcontainer for an existing app with bin/rails devcontainer.

Make public method for schema_cache_ignored_table?
This pull request adds a public method for checking if a table is ignored by the schema cache.
Previously, an application would need to reimplement ignored_table? from the schema cache class to check if a table was set to be ignored. This change adds a public method to support this and updates the schema cache to use that directly.

ActiveRecord.schema_cache_ignored_table = ["developers"]
ActiveRecord.schema_cache_ignored_table?("developers")
=> true

Don’t configure Kamal storage volume if not needed
This pull request changes the app generator to only configure a Docker persistent storage volume in Kamal for sqlite or Active Storage. If using a different database and the --skip-active-storage option, configuration can be skipped.
In another pull request, the same change was done for the storage/ directory.

Add rubocop and GitHub Actions to plugin generator
This pull request adds Rubocop and GitHub Actions to the plugin generator to make it similar to the app generator. This can be skipped using --skip-rubocop and --skip-ci.

Until next time!