Class: TrelloFreestyler::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/trello_freestyler/utils/hash.rb

Class Method Summary collapse

Class Method Details

.deep_clean(hash) ⇒ Object 



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# File 'lib/trello_freestyler/utils/hash.rb', line 17

def self.deep_clean(hash)
  return hash unless hash.is_a?(Hash)

  scrubed = hash.delete_if { |_, value| value == {} }
  scrubed.transform_values do |val|
    deep_clean(val)
  end
end

.deep_copy(obj) ⇒ Object 



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# File 'lib/trello_freestyler/utils/hash.rb', line 26

def self.deep_copy(obj)
  Marshal.load(Marshal.dump(obj))
end

.deep_deep_clean(hash) ⇒ Object 



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# File 'lib/trello_freestyler/utils/hash.rb', line 5

def self.deep_deep_clean(hash)
  # Sometimes removing one layer of empty objects creates another.
  # So loop until cleaning is no longer detecting changes.
  current_state = deep_copy(hash) # Who knew that object mutation was bad
  loop do
    new_state = deep_clean(hash)
    return current_state if current_state == new_state

    current_state = new_state
  end
end