54 lines
1.5 KiB
Ruby
54 lines
1.5 KiB
Ruby
module ActiveSupport #:nodoc:
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module CoreExtensions #:nodoc:
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module Hash #:nodoc:
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module Keys
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# Return a new hash with all keys converted to strings.
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def stringify_keys
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inject({}) do |options, (key, value)|
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options[key.to_s] = value
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options
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end
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end
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# Destructively convert all keys to strings.
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def stringify_keys!
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keys.each do |key|
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unless key.class.to_s == "String" # weird hack to make the tests run when string_ext_test.rb is also running
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self[key.to_s] = self[key]
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delete(key)
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end
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end
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self
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end
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# Return a new hash with all keys converted to symbols.
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def symbolize_keys
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inject({}) do |options, (key, value)|
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options[key.to_sym] = value
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options
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end
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end
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# Destructively convert all keys to symbols.
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def symbolize_keys!
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keys.each do |key|
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unless key.is_a?(Symbol)
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self[key.to_sym] = self[key]
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delete(key)
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end
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end
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self
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end
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alias_method :to_options, :symbolize_keys
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alias_method :to_options!, :symbolize_keys!
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def assert_valid_keys(*valid_keys)
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unknown_keys = keys - [valid_keys].flatten
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raise(ArgumentError, "Unknown key(s): #{unknown_keys.join(", ")}") unless unknown_keys.empty?
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end
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end
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end
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end
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end
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