Method: Hash#symbolize_keys!

Defined in:
lib/core/facets/hash/symbolize_keys.rb

#symbolize_keys!(&select) ⇒ Object

Destructively convert all keys to symbols. This is the same as Hash#symbolize_keys, but modifies the receiver in place and returns it. With a select block, limits conversion to only selected keys.

foo = { 'name'=>'Gavin', 'wife'=>:Lisa }
foo.symbolize_keys!    #=>  { :name=>"Gavin", :wife=>:Lisa }
foo                    #=>  { :name=>"Gavin", :wife=>:Lisa }

If the key does not respond to #to_sym, then #to_s will be used first.

For a more versatile method, see #rekey instead.



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# File 'lib/core/facets/hash/symbolize_keys.rb', line 34

def symbolize_keys!(&select)
  if select
    keys.each do |key|
      if select[key]
        new_key = (key.to_sym rescue key.to_s.to_sym)
        self[new_key] = delete(key)
      end
    end       
  else
    keys.each do |key|
      new_key = (key.to_sym rescue key.to_s.to_sym)
      self[new_key] = delete(key)
    end
  end
  self
end