Module: IdentityCache::QueryAPI

Extended by:
ActiveSupport::Concern
Included in:
WithoutPrimaryIndex
Defined in:
lib/identity_cache/query_api.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#_run_commit_callbacks ⇒ Object

Override the method that is used to call after_commit callbacks so that we can expire the caches before other after_commit callbacks. This way we can avoid stale cache reads that happen from the ordering of callbacks. For example, if an after_commit callback enqueues a background job, then we don’t want it to be possible for the background job to run and load data from the cache before it is invalidated.



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# File 'lib/identity_cache/query_api.rb', line 168

def _run_commit_callbacks
  if destroyed? || transaction_changed_attributes.present?
    expire_cache
  end
  super
end

#expire_cache ⇒ Object

Invalidate the cache data associated with the record. Returns ‘true` on success, `false` otherwise.



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# File 'lib/identity_cache/query_api.rb', line 177

def expire_cache
  expired_parent_caches = expire_parent_caches
  expired_attribute_indexes = expire_attribute_indexes

  expired_parent_caches && expired_attribute_indexes
end

#was_new_record? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/identity_cache/query_api.rb', line 185

def was_new_record? # :nodoc:
  pk = self.class.primary_key
  !destroyed? && transaction_changed_attributes.key?(pk) && transaction_changed_attributes[pk].nil?
end