Method: Hash#assert_valid_keys

Defined in:
lib/active_support/core_ext/hash/keys.rb

#assert_valid_keys(*valid_keys) ⇒ Object

Validate all keys in a hash match *valid keys, raising ArgumentError on a mismatch. Note that keys are NOT treated indifferently, meaning if you use strings for keys but assert symbols as keys, this will fail.

Examples

{ :name => "Rob", :years => "28" }.assert_valid_keys(:name, :age) # => raises "ArgumentError: Unknown key: years"
{ :name => "Rob", :age => "28" }.assert_valid_keys("name", "age") # => raises "ArgumentError: Unknown key: name"
{ :name => "Rob", :age => "28" }.assert_valid_keys(:name, :age) # => passes, raises nothing



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# File 'lib/active_support/core_ext/hash/keys.rb', line 41

def assert_valid_keys(*valid_keys)
  valid_keys.flatten!
  each_key do |k|
    raise(ArgumentError, "Unknown key: #{k}") unless valid_keys.include?(k)
  end
end