Class: Hash

Inherits:
Object show all
Defined in:
lib/core_ext/hash/compact.rb,
lib/core_ext/hash/deep_merge.rb,
lib/core_ext/hash/deep_symbolize_keys.rb

Constant Summary collapse

DEEP_MERGER =

deep_merge_hash! by Stefan Rusterholz, see www.ruby-forum.com/topic/142809

proc do |key, v1, v2|
  Hash === v1 && Hash === v2 ? v1.merge(v2, &DEEP_MERGER) : v2
end

Instance Method Summary collapse

Instance Method Details

#compact ⇒ Object 



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# File 'lib/core_ext/hash/compact.rb', line 2

def compact
  inject({}) do |result, (key, value)|
    result[key] = value unless value.nil?
    result
  end
end

#deep_merge(data) ⇒ Object 



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# File 'lib/core_ext/hash/deep_merge.rb', line 7

def deep_merge(data)
  merge(data, &DEEP_MERGER)
end

#deep_merge!(data) ⇒ Object 



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# File 'lib/core_ext/hash/deep_merge.rb', line 11

def deep_merge!(data)
  merge!(data, &DEEP_MERGER)
end

#deep_symbolize_keys ⇒ Object 



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# File 'lib/core_ext/hash/deep_symbolize_keys.rb', line 2

def deep_symbolize_keys
  inject({}) { |result, (key, value)|
    result[(key.to_sym rescue key) || key] = case value
    when Array
      value.map { |value| value.is_a?(Hash) ? value.deep_symbolize_keys : value }
    when Hash
      value.deep_symbolize_keys
    else
      value
    end
    result
  }
end

#deep_symbolize_keys! ⇒ Object 



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# File 'lib/core_ext/hash/deep_symbolize_keys.rb', line 16

def deep_symbolize_keys!
  replace(deep_symbolize_keys)
end