method
decrement
v3.0.0 -
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Class: ActiveSupport::Cache::FileStore
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decrement(name, amount = 1, options = nil)
public
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# File activesupport/lib/active_support/cache/file_store.rb, line 50 def decrement(name, amount = 1, options = nil) file_name = key_file_path(namespaced_key(name, options)) lock_file(file_name) do options = merged_options(options) if num = read(name, options) num = num.to_i - amount write(name, num, options) num else nil end end end