Hi, Wojtek here. Let’s explore this week’s changes with another big round of fixes in the Rails codebase.
Add a guide for using Hotwire with Rails
The guide can already be read on the Edge Guides.
Use an Array for storing Active Record attributes
Cast and freeze a model’s attribute defaults when its schema is loaded.
Deprecate unscope(where: :column) removing conditions on other tables
An unqualified column passed to unscope(where: ...) currently removes conditions on every table that has a column of that name, including joined and eager loaded tables. In Rails 9.0 it will only remove conditions on the relation’s own table.
Detect Kamal in app:update command
The update command didn’t pass skip_kamal, so it rendered config files as if every application deployed with Kamal.
Filter parameters from the message logged when a command can’t be handled
When a channel action raised, the error log included the raw WebSocket message, so values hidden by filter_parameters in the action’s debug log were written in clear at the error level.
Cast numeric values to the scale of the PostgreSQL money type
money only rounded strings to its scale, so a numeric value was held unrounded and as given, while it was rounded on save and read back as a BigDecimal.
Qualify unscope values with table name when merging relations
Fixes an issue where merging a relation with an unscope(where: ...) clause unscoped conditions on joined or eager loaded tables that share the same column name.
Force UTF8 encoding when reading source annotation
Notes extracted from files such as ERB, YAML, JS or CSS are now UTF-8 like the ones extracted from Ruby files, with invalid bytes replaced.
Shift local times in a DST gap forward by the gap’s length
TimeZone#local, TimeZone#parse, and TimeWithZone#change assumed every gap was one hour long, which overshot in zones with a shorter gap and collapsed distinct local times onto the same instant in zones with a longer one.
Implement button_to in terms of form_tag
Forms rendered by button_to include [accept-charset=”UTF-8”] and render their hidden fields before the button, rather than after it.
Fix :integer attributes silently truncating 64-bit integer strings
Strings cast by ActiveModel::Type::Integer are cut to limit * 4 bytes. Types without a limit, such as Active Model attributes, used the default limit of 4, so a 19-digit value like “9223372036854775807” was silently truncated to 16 digits. Types without a limit now use a 32-byte window, which fits any 64-bit value. Types with an explicit limit are unchanged.
Group bound SQL literals in where clause like other SQL literals
Fixes where and having not parenthesizing bound SQL literals passed as Arel nodes.
Don’t convert the given scheduled_at to UTC in place
Fixes ActiveJob::Core#serialize converting the given scheduled_at to UTC in place.
Don’t show the encryption key in ActiveSupport::EncryptedFile#inspect
Previously the key, read from the key file or environment variable, was included in the default inspect output, so it could end up in logs or error pages.
Fix preloading has_many :through with conditions ignoring preload and eager_load in the scope
Only includes in the scope was applied, so the nested association was loaded with a query per record, or raised under strict_loading.
Fix a default_order being ignored by a disable_joins through association
An explicit order in an association’s scope was carried over to the queries the chain is split into, but a default_order was dropped, so the records came back in whatever order the database returned them.
Fix nested preloads under a through association using copies of its records
When the owners already had the through association loaded, the nested association was preloaded on fresh copies of its records, so it raised with strict_loading, and without it was loaded again lazily, one query per record. Nested preloads now always use the records held by the owners.
Fix FrozenError in frozen MessageVerifier, MessageEncryptor and CachingKeyGenerator
A MessageVerifier with an unknown digest now raises when it is frozen, instead of when it first signs or verifies a message
You can view the whole list of changes here.
We had 41 contributors to the Rails codebase this past week!
Until next time!
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