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Identity Cache Changelog

Unreleased

1.6.3

  • Split the with_deferred_parent_expiration and with_deferred_parent_expiration. (#578)

1.6.2

  • Support deferred expiry of associations and attributes. Add a rake task to create test database. (#577)

1.6.1

  • Fix deprecation warnings on Active Record 7.2. (#575)

1.6.0

  • Introduce .with_deferred_parent_expiration, which takes a block and avoids duplicate parent cache expiry. (#569)

1.5.6

  • Minor performance improvements on association read

1.5.5

  • Minor performance improvements on association read

1.5.4

  • Make prefetch_associations work as expected on associations that have been partially prefetched

1.5.3

  • No longer call should_use_cache? on embedded/prefetched associations when reading values

1.5.2

  • Add missing should_use_cache? to fetch_multi methods.

1.5.1

  • Fix parent cache invalidation for custom foreign key associations

1.5.0

  • Require Active Record 7+
  • Require Ruby 3+
  • Improve compatibility with Active Record 7.1.

1.4.1

Fixes

  • Fix fetch_multi_by bug for queries having a single field with distinct values. (#536)

1.4.0

Features

  • Add fetch_multi_by support for composite-key indexes. (#534)

1.3.1

Fixes

  • Remove N+1 queries from embedded associations when using fetch while should_use_cache is false. (#531)

1.3.0

Features

  • Return meaningful value from expire_cache indicating whenever it succeeded or failed in the process. (#523)

Fixes

  • Expire parents cache when when calling expire_cache. (#523)
  • Avoid creating too many shapes on Ruby 3.2+. (#526)

1.2.0

Fixes

  • Fix mem_cache_store adapter with pool_size (#489)
  • Fix dalli deprecation warning about requiring 'dalli/cas/client' (#511)
  • Make transitionary method IdentityCache.with_fetch_read_only_records thread-safe (#503)

Features

  • Add support for fill lock with lock wait to avoid thundering herd problem (#373)

1.1.0

Fixes

  • Fix double debug logging of cache hits and misses (#474)
  • Fix a Rails 6.1 deprecation warning for Rails 7.0 compatibility (#482)
  • Recursively install parent expiry hooks when expiring parent caches (#476)
  • Expire caches before other after_commit callbacks (#471)
  • Avoid unnecessary record cache expiry on save with no DB update (#464)
  • Fix an Active Record deprecation warning by not using Connection#type_cast (#459)
  • Fix broken prefetch_associations of a polymorphic cache_belongs_to (#461)
  • Fix should_use_cache? check to avoid calling it on the wrong class (#454)
  • Fix fetch has_many embedded association on record after adding to it (#449)

Features

  • Support multiple databases and transactional tests in IdentityCache.should_use_cache? (#293)
  • Add support for the default MemCacheStore from ActiveSupport (#465)

Breaking Changes

  • Drop ruby 2.4 support, since it is no longer supported upstream (#468)

1.0.1

  • Fix expiry of cache_has_one association with scope and embed: :id (#442)

1.0.0

  • Remove inverse_name option. Specify inverse_of on the Active Record association instead. (#439)
  • Bump the minimum Active Record version to 5.2 (#438)
  • Remove the default embed option value from cache_has_one (#437)
  • Lazily evaluate nested includes to fetch blobs in batches (#427)
  • Only cache embedded association IDs when present (#397)
  • Add support for ID embedded has_one cached associations (#393)
  • Add support for polymorphic belongs_to cached associations (#387)
  • Add fetch_multi_by_* support for cache_index with a single field (#368)
  • Remove support for rails 4.2 (#355)
  • Type cast values using attribute types before using in cache key (#354)
  • Set inverse cached association for cache_has_one on cache hit (#345)
  • Use ActiveSupport:Notifications to notify subscribers of hydration events (#341)
  • Remove disable_primary_cache_index (#335)
  • Remove deprecated embed: false cache_has_many option (#335)
  • Fix column name in the preload association query when using custom primary keys (#338)
  • Raise when trying to cache a belong_to association with a scope. Previously the scope was ignored on a cache hit (#323)
  • Remove deprecated never_set_inverse_association option (#319)
  • Lazy load associated classes (#306)

0.5.1

  • Fix bug in prefetch_associations for cache_has_one associations that may be nil

0.5.0

  • never_set_inverse_association and fetch_read_only_records are now true by default (#315)
  • Store the class name instead of the class itself (#311)

0.4.1

  • Deprecated embedded associations on models that don't use IDC (#305)
  • Remove a respond_to? check that hides mistakes in includes hash (#307)
  • Drop ruby 2.1 support (#301)
  • Avoid querying when no ids are passed to fetch_multi (#297)
  • Fix fetching already loaded belongs_to association (#294)
  • Move should_use_cache? calls to the model-level (#291)
  • Clone instead of dup record when readonlyifying fetched records (#292)
  • Consistently store the array for cached has many associations (#288)

0.4.0

  • Return an array from fetched association to prevent chaining. Up to now, a relation was returned by default. (#287)

0.3.2

  • Deprecate returning non read-only records when cache is used. Set IdentityCache.fetch_readonly_records to true to avoid this. (#282)
  • Use loaded association first when fetching a cache_has_many id embedded association (#280)
  • Deprecate setting the inverse active record association on cache hits. Set IdentityCache.never_set_inverse_association to true to avoid this. (#279)
  • Fetch association returns relation or array depending on the configuration. It was only returning a relation for cache_has_many fetch association methods. (#276)
  • Stop sharing the same attributes hash between the fetched record and the memoized cache, which could interfere with dirty tracking (#267)

0.3.1

  • Fix cache_index for non-id primary key

0.3.0

  • Add support for includes option on cache_index and fetch_by_id
  • Use ActiveRecord instantiate
  • Add association pre-fetching support for fetch_by_id
  • Remove support for 3.2
  • Fix N+1 from fetching embedded ids on a cache miss
  • Raise when trying to cache a through association. Previously it wouldn't be invalidated properly.
  • Raise if a class method is called on a scope. Previously the scope was ignored.
  • Raise if a class method is called on a subclass of one that included IdentityCache. This never worked properly.
  • Fix cache_belongs_to on polymorphic assocations.
  • Fetching a cache_belongs_to association no longer loads the belongs_to association

0.2.5

  • Fixed support for namespaced model classes
  • Added some deduplication for parent cache expiry
  • Fixed some deprecation warnings in rails 4.2

0.2.4

  • Refactoring, documentation and test changes

0.2.3

  • PostgreSQL support
  • Rails 4.2 compatibility
  • Fix: Don't connect to database when calling IdentityCache.should_use_cache?
  • Fix: Fix invalid parent cache invalidation if object is embedded in different parents

0.2.2

  • Change: memcached is no longer a runtime dependency
  • Use cache for read-only models.

0.2.1

  • Add a fallback backend using local memory.

0.2.0

  • Memcache CAS support

0.1.0

  • Backwards incompatible change: Stop expiring cache on after_touch callback.
  • Change: fetch_multi accepts an array of keys as argument
  • Change: :embed option value from false to :ids for cache_has_many for clarity
  • Fix: Consistently use ActiveRecord / Arel APIs to build SQL queries
  • Fix: SystemStackError when fetching more records than the max stack size
  • Fix: Bug in fetch_multi in a transaction where results weren't compacted.
  • Fix: Avoid unused preload on fetch_multi with :includes option for cache miss
  • Fix: reload will invalidate the local instance cache

0.0.7

  • Add support for non-integer primary keys
  • Fix: Not implemented error for cache_has_one with embed: false
  • Fix: cache key to change when adding a cache_has_many association with :embed => false
  • Fix: Compatibility rails 4.1 for quote_value, which needs default column.

0.0.6

  • Fix: bug where previously nil-cached attribute caches weren't expired on record creation
  • Fix: cache key to not change when adding a non-embedded association.
  • Perf: Rails 4 Only create CollectionProxy when using it

0.0.5

0.0.4

  • Fix: only marshal attributes, embedded associations and normalized association IDs
  • Add cache version number to cache keys
  • Add test case to ensure version number is updated when the marshalled format changes

0.0.3

  • Fix: memoization for multi hits actually work
  • Fix: quotes SELECT projection elements on cache misses
  • Add CPU performance benchmark
  • Fix: table names are not hardcoded anymore
  • Logger now differentiates memoized vs non memoized hits

0.0.2

  • Fix: Existent embedded entries will no longer raise when ActiveModel::MissingAttributeError when accessing a newly created attribute.
  • Fix: Do not marshal raw ActiveRecord associations