cache_key

cache_key(*timestamp_names)

Instance Public methods

Returns a cache key that can be used to identify this record.

Product.new.cache_key     # => "products/new"
Product.find(5).cache_key # => "products/5" (updated_at not available)
Person.find(5).cache_key  # => "people/5-20071224150000" (updated_at available)

You can also pass a list of named timestamps, and the newest in the list will be used to generate the key:

Person.find(5).cache_key(:updated_at, :last_reviewed_at)

Links:

https://github.com/rails/rails/blob/ee738f960439e511285bc53b7207cebacda8db36/activerecord/lib/active_record/integration.rb#L55

doc_ruby_on_rails

2015-06-20 00:00:00

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