method

normalize_key

rails latest stable - Class: ActiveSupport::Cache::Store

normalize_key(key, options = nil)

private

Expands and namespaces the cache key. Raises an exception when the key is nil or an empty string. May be overridden by cache stores to do additional normalization.

# File activesupport/lib/active_support/cache.rb, line 938
        def normalize_key(key, options = nil)
          str_key = expanded_key(key)
          raise(ArgumentError, "key cannot be blank") if !str_key || str_key.empty?

          namespace_key str_key, options
        end

normalize_key

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