146 lines
4.3 KiB
Markdown
146 lines
4.3 KiB
Markdown
* Raise specific exception when a connection is not defined.
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The new `ConnectionNotDefined` exception provides connection name, shard and role accessors indicating the details of the connection that was requested.
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*Hana Harencarova*, *Matthew Draper*
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* Delete the deprecated constant `ActiveRecord::ImmutableRelation`.
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*Xavier Noria*
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* Fix duplicate callback execution when child autosaves parent with `has_one` and `belongs_to`.
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Before, persisting a new child record with a new associated parent record would run `before_validation`,
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`after_validation`, `before_save` and `after_save` callbacks twice.
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Now, these callbacks are only executed once as expected.
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*Joshua Young*
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* `ActiveRecord::Encryption::Encryptor` now supports a `:compressor` option to customize the compression algorithm used.
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```ruby
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module ZstdCompressor
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def self.deflate(data)
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Zstd.compress(data)
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end
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def self.inflate(data)
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Zstd.decompress(data)
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end
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end
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class User
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encrypts :name, compressor: ZstdCompressor
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end
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```
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You disable compression by passing `compress: false`.
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```ruby
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class User
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encrypts :name, compress: false
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end
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```
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*heka1024*
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* Add condensed `#inspect` for `ConnectionPool`, `AbstractAdapter`, and
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`DatabaseConfig`.
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*Hartley McGuire*
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* Add `.shard_keys`, `.sharded?`, & `.connected_to_all_shards` methods.
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```ruby
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class ShardedBase < ActiveRecord::Base
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self.abstract_class = true
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connects_to shards: {
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shard_one: { writing: :shard_one },
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shard_two: { writing: :shard_two }
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}
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end
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class ShardedModel < ShardedBase
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end
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ShardedModel.shard_keys => [:shard_one, :shard_two]
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ShardedModel.sharded? => true
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ShardedBase.connected_to_all_shards { ShardedModel.current_shard } => [:shard_one, :shard_two]
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```
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*Nony Dutton*
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* Optimize `Relation#exists?` when records are loaded and the relation has no conditions.
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This can avoid queries in some cases.
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*fatkodima*
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* Add a `filter` option to `in_order_of` to prioritize certain values in the sorting without filtering the results
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by these values.
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*Igor Depolli*
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* Fix an issue where the IDs reader method did not return expected results
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for preloaded associations in models using composite primary keys.
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*Jay Ang*
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* Allow to configure `strict_loading_mode` globally or within a model.
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Defaults to `:all`, can be changed to `:n_plus_one_only`.
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*Garen Torikian*
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* Add `ActiveRecord::Relation#readonly?`.
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Reflects if the relation has been marked as readonly.
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*Theodor Tonum*
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* Improve `ActiveRecord::Store` to raise a descriptive exception if the column is not either
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structured (e.g., PostgreSQL +hstore+/+json+, or MySQL +json+) or declared serializable via
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`ActiveRecord.store`.
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Previously, a `NoMethodError` would be raised when the accessor was read or written:
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NoMethodError: undefined method `accessor' for an instance of ActiveRecord::Type::Text
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Now, a descriptive `ConfigurationError` is raised:
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ActiveRecord::ConfigurationError: the column 'metadata' has not been configured as a store.
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Please make sure the column is declared serializable via 'ActiveRecord.store' or, if your
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database supports it, use a structured column type like hstore or json.
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*Mike Dalessio*
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* Fix inference of association model on nested models with the same demodularized name.
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E.g. with the following setup:
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```ruby
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class Nested::Post < ApplicationRecord
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has_one :post, through: :other
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end
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```
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Before, `#post` would infer the model as `Nested::Post`, but now it correctly infers `Post`.
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*Joshua Young*
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* Add public method for checking if a table is ignored by the schema cache.
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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 adds a public method to support this and updates the schema cache to use that directly.
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```ruby
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ActiveRecord.schema_cache_ignored_tables = ["developers"]
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ActiveRecord.schema_cache_ignored_table?("developers")
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=> true
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```
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*Eileen M. Uchitelle*
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Please check [7-2-stable](https://github.com/rails/rails/blob/7-2-stable/activerecord/CHANGELOG.md) for previous changes.
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