method

decrement

v5.2.3 - Show latest stable - Class: ActiveSupport::Cache::RedisCacheStore

decrement(name, amount = 1, options = nil)

public

Decrement a cached value. This method uses the Redis decr atomic operator and can only be used on values written with the :raw option. Calling it on a value not stored with :raw will initialize that value to zero.

Failsafe: Raises errors.

# File activesupport/lib/active_support/cache/redis_cache_store.rb, line 275
      def decrement(name, amount = 1, options = nil)
        instrument :decrement, name, amount: amount do
          failsafe :decrement do
            redis.with { |c| c.decrby normalize_key(name, options), amount }
          end
        end
      end

decrement

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