instance method `decrement`

Ruby on Rails 8.1.2

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

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

Decrement a cached integer value. Returns the updated value.

If the key is unset, it will be set to -amount.

cache.decrement("foo") # => -1

To set a specific value, call #write:

cache.write("baz", 5)
cache.decrement("baz") # => 4

Parameters

name req
amount opt = 1
options keyrest

Source

# File activesupport/lib/active_support/cache/file_store.rb, line 80
      def decrement(name, amount = 1, **options)
        options = merged_options(options)
        key = normalize_key(name, options)

        instrument(:decrement, key, amount: amount) do
          modify_value(name, -amount, options)
        end
      end

Defined in activesupport/lib/active_support/cache/file_store.rb line 80 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveSupport::Cache::FileStore

Signature

Parameters