method

decrement

v4.2.9 - Show latest stable - 0 notes - Class: ActiveSupport::Cache::MemCacheStore

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0 (0)
2.2.1 (0)
2.3.8 (0)
3.0.0 (32)
3.0.9 (-1)
3.1.0 (0)
3.2.1 (0)
3.2.8 (0)
3.2.13 (0)
4.0.2 (0)
4.1.8 (0)
4.2.1 (0)
4.2.7 (0)
4.2.9 (0)
5.0.0.1 (0)
5.1.7 (0)
5.2.3 (0)
6.0.0 (0)
6.1.3.1 (0)
6.1.7.7 (0)
7.0.0 (0)
7.1.3.2 (38)
7.1.3.4 (0)
What's this?

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

Decrement a cached value. This method uses the memcached 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.

Show source

# File activesupport/lib/active_support/cache/mem_cache_store.rb, line 97
      def decrement(name, amount = 1, options = nil) # :nodoc:
        options = merged_options(options)
        instrument(:decrement, name, :amount => amount) do
          @data.decr(escape_key(namespaced_key(name, options)), amount)
        end
      rescue Dalli::DalliError => e
        logger.error("DalliError (#{e}): #{e.message}") if logger
        nil
      end

decrement

Related methods