Class: Hash

Inherits:
Object
  • Object
show all
Defined in:
lib/cotcube-helpers/hash_ext.rb

Overview

Monkey patching the Ruby Core class Hash

Instance Method Summary collapse

Instance Method Details

#deep_dup ⇒ Object 



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# File 'lib/cotcube-helpers/hash_ext.rb', line 33

def deep_dup
  map do |k,v|
    case v
    when Hash, Array
      [k, v.deep_dup]
    else
      [k, v.dup]
    end
  end.to_h
end

#keys_to_sym! ⇒ Object 



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# File 'lib/cotcube-helpers/hash_ext.rb', line 5

def keys_to_sym!
  self.keys.each do |key|
    case self[key].class.to_s
    when 'Hash'
      self[key].keys_to_sym!
    when 'Array'
      self[key].map { |el| el.is_a?(Hash) ? el.keys_to_sym! : el }
    end
    self["#{key}".to_sym] = delete(key)
  end
  self
end

#reduce_group(&block) ⇒ Object

a group_hash was created from an array by running group_by to reduce a group_hash, the given block is applied to each array of the hash if its not an array value, the block will auto-yield nil

Raises:

  • (ArgumentError) 


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# File 'lib/cotcube-helpers/hash_ext.rb', line 21

def reduce_group(&block)
  raise ArgumentError, 'No block given' unless block_given?
  map do |key,value|
    case value
    when Array
      [key, (block.call(value) rescue nil) ]
    else
      [key, nil]
    end
  end.to_h
end