Class: Hash

Inherits:
Object
  • Object
show all
Defined in:
lib/magneto/core_ext.rb

Instance Method Summary collapse

Instance Method Details

#deep_merge(hash) ⇒ Object

Merges self with another hash, recursively.

This code was lovingly stolen (now adapted) from some random gem: gemjack.com/gems/tartan-0.1.1/classes/Hash.html

Thanks to whoever made it.



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# File 'lib/magneto/core_ext.rb', line 42

def deep_merge(hash)
  dup.deep_merge! hash
end

#deep_merge!(hash) ⇒ Object 



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# File 'lib/magneto/core_ext.rb', line 46

def deep_merge!(hash)
  hash.keys.each do |key|
    if hash[key].is_a? Hash and self[key].is_a? Hash
      self[key] = self[key].deep_merge(hash[key])
      next
    end

    self[key] = hash[key]
  end

  self
end

#stringify_keys ⇒ Object

Return a new hash with all keys converted to strings.



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# File 'lib/magneto/core_ext.rb', line 7

def stringify_keys
  dup.stringify_keys!
end

#stringify_keys! ⇒ Object

Destructively convert all keys to strings.



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# File 'lib/magneto/core_ext.rb', line 12

def stringify_keys!
  keys.each do |key|
    self[key.to_s] = delete(key)
  end
  self
end

#symbolize_keys ⇒ Object

Return a new hash with all keys converted to symbols, as long as they respond to to_sym.



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# File 'lib/magneto/core_ext.rb', line 21

def symbolize_keys
  dup.symbolize_keys!
end

#symbolize_keys! ⇒ Object

Destructively convert all keys to symbols, as long as they respond to to_sym.



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# File 'lib/magneto/core_ext.rb', line 27

def symbolize_keys!
  keys.each do |key|
    self[(key.to_sym rescue key) || key] = delete(key)
  end
  self
end