Enable Rails 7.1 Marshalling format (#28609)
Jean Boussier
GitHub
parent
12bed81187
commit
5a6d533c53
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@ -3,150 +3,6 @@
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module CacheConcern
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extend ActiveSupport::Concern
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module ActiveRecordCoder
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EMPTY_HASH = {}.freeze
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class << self
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def dump(record)
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instances = InstanceTracker.new
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serialized_associations = serialize_associations(record, instances)
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serialized_records = instances.map { |r| serialize_record(r) }
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[serialized_associations, *serialized_records]
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end
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def load(payload)
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instances = InstanceTracker.new
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serialized_associations, *serialized_records = payload
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serialized_records.each { |attrs| instances.push(deserialize_record(*attrs)) }
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deserialize_associations(serialized_associations, instances)
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end
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private
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# Records without associations, or which have already been visited before,
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# are serialized by their id alone.
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#
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# Records with associations are serialized as a two-element array including
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# their id and the record's association cache.
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#
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def serialize_associations(record, instances)
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return unless record
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if (id = instances.lookup(record))
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payload = id
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else
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payload = instances.push(record)
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cached_associations = record.class.reflect_on_all_associations.select do |reflection|
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record.association_cached?(reflection.name)
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end
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unless cached_associations.empty?
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serialized_associations = cached_associations.map do |reflection|
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association = record.association(reflection.name)
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serialized_target = if reflection.collection?
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association.target.map { |target_record| serialize_associations(target_record, instances) }
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else
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serialize_associations(association.target, instances)
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end
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[reflection.name, serialized_target]
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end
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payload = [payload, serialized_associations]
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end
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end
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payload
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end
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def deserialize_associations(payload, instances)
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return unless payload
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id, associations = payload
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record = instances.fetch(id)
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associations&.each do |name, serialized_target|
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begin
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association = record.association(name)
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rescue ActiveRecord::AssociationNotFoundError
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raise AssociationMissingError, "undefined association: #{name}"
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end
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target = if association.reflection.collection?
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serialized_target.map! { |serialized_record| deserialize_associations(serialized_record, instances) }
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else
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deserialize_associations(serialized_target, instances)
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end
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association.target = target
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end
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record
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end
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def serialize_record(record)
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arguments = [record.class.name, attributes_for_database(record)]
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arguments << true if record.new_record?
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arguments
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end
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def attributes_for_database(record)
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attributes = record.attributes_for_database
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attributes.transform_values! { |attr| attr.is_a?(::ActiveModel::Type::Binary::Data) ? attr.to_s : attr }
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attributes
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end
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def deserialize_record(class_name, attributes_from_database, new_record = false) # rubocop:disable Style/OptionalBooleanParameter
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begin
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klass = Object.const_get(class_name)
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rescue NameError
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raise ClassMissingError, "undefined class: #{class_name}"
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end
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# Ideally we'd like to call `klass.instantiate`, however it doesn't allow to pass
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# wether the record was persisted or not.
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attributes = klass.attributes_builder.build_from_database(attributes_from_database, EMPTY_HASH)
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klass.allocate.init_with_attributes(attributes, new_record)
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end
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end
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class Error < StandardError
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end
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class ClassMissingError < Error
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end
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class AssociationMissingError < Error
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end
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class InstanceTracker
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def initialize
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@instances = []
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@ids = {}.compare_by_identity
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end
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def map(&block)
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@instances.map(&block)
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end
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def fetch(...)
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@instances.fetch(...)
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end
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def push(instance)
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id = @ids[instance] = @instances.size
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@instances << instance
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id
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end
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def lookup(instance)
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@ids[instance]
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end
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end
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end
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class_methods do
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def vary_by(value, **kwargs)
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before_action(**kwargs) do |controller|
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@ -196,11 +52,7 @@ module CacheConcern
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raw = raw.cache_ids.to_a if raw.is_a?(ActiveRecord::Relation)
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return [] if raw.empty?
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cached_keys_with_value = begin
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Rails.cache.read_multi(*raw).transform_keys(&:id).transform_values { |r| ActiveRecordCoder.load(r) }
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rescue ActiveRecordCoder::Error
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{} # The serialization format may have changed, let's pretend it's a cache miss.
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end
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cached_keys_with_value = Rails.cache.read_multi(*raw).transform_keys(&:id)
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uncached_ids = raw.map(&:id) - cached_keys_with_value.keys
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@ -208,10 +60,7 @@ module CacheConcern
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unless uncached_ids.empty?
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uncached = klass.where(id: uncached_ids).with_includes.index_by(&:id)
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uncached.each_value do |item|
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Rails.cache.write(item, ActiveRecordCoder.dump(item))
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end
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Rails.cache.write_multi(uncached.values.to_h { |i| [i, i] })
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end
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raw.filter_map { |item| cached_keys_with_value[item.id] || uncached[item.id] }
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@ -17,23 +17,8 @@
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class CustomFilter < ApplicationRecord
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self.ignored_columns += %w(whole_word irreversible)
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# NOTE: We previously used `alias_attribute` but this does not play nicely
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# with cache
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def title
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phrase
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end
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def title=(value)
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self.phrase = value
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end
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def filter_action
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action
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end
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def filter_action=(value)
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self.action = value
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end
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alias_attribute :title, :phrase
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alias_attribute :filter_action, :action
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VALID_CONTEXTS = %w(
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home
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@ -17,15 +17,7 @@ class CustomFilterKeyword < ApplicationRecord
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validates :keyword, presence: true
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# NOTE: We previously used `alias_attribute` but this does not play nicely
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# with cache
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def phrase
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keyword
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end
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def phrase=(value)
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self.keyword = value
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end
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alias_attribute :phrase, :keyword
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before_save :prepare_cache_invalidation!
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before_destroy :prepare_cache_invalidation!
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@ -63,6 +63,8 @@ module Mastodon
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# Initialize configuration defaults for originally generated Rails version.
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config.load_defaults 7.0
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config.active_record.marshalling_format_version = 7.1
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# Please, add to the `ignore` list any other `lib` subdirectories that do
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# not contain `.rb` files, or that should not be reloaded or eager loaded.
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# Common ones are `templates`, `generators`, or `middleware`, for example.
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@ -34,7 +34,7 @@ REDIS_CACHE_PARAMS = {
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driver: :hiredis,
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url: ENV['CACHE_REDIS_URL'],
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expires_in: 10.minutes,
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namespace: cache_namespace,
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namespace: "#{cache_namespace}:7.1",
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connect_timeout: 5,
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pool: {
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size: Sidekiq.server? ? Sidekiq[:concurrency] : Integer(ENV['MAX_THREADS'] || 5),
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