Module: EyCloudAwareness::HashExt

Defined in:
lib/ey_cloud_awareness/hash_ext.rb

Constant Summary collapse

XML_ITEM_KEYS = 
[ :item, 'item' ]

Instance Method Summary collapse

Instance Method Details

#kill_xml_item_keys! ⇒ Object

:sam => { :item => [{ :foo => :bar }] } into :sam => [=> :bar]



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# File 'lib/ey_cloud_awareness/hash_ext.rb', line 31

def kill_xml_item_keys!
  if keys.length == 1 and XML_ITEM_KEYS.include?(keys.first)
    raise ArgumentError, "You need to call kill_xml_item_keys! on { :foo => { :items => [...] } } not on { :items => [...] }"
  end
  keys.each do |key|
    if self[key].is_a?(Hash) and self[key].keys.length == 1 and XML_ITEM_KEYS.include?(self[key].keys.first)
      # self[:sam] = self[:sam]["item"] (using values.first because we don't know if it's :item or "item")
      self[key] = delete(key).values.first
    end
  end
  self
end

#recursive_kill_xml_item_keys! ⇒ Object 



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# File 'lib/ey_cloud_awareness/hash_ext.rb', line 44

def recursive_kill_xml_item_keys!
  kill_xml_item_keys!
  values.select { |v| v.is_a?(Hash) }.each do |hsh|
    hsh.recursive_kill_xml_item_keys!
  end
  # burst thru at least one level of arrays
  values.select { |v| v.is_a?(Array) }.each do |ary|
    ary.each do |v|
      v.recursive_kill_xml_item_keys! if v.is_a?(Hash)
    end
  end
  self
end

#recursive_underscore_keys! ⇒ Object

pragmatig.wordpress.com/2009/04/14/recursive-symbolize_keys/



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# File 'lib/ey_cloud_awareness/hash_ext.rb', line 12

def recursive_underscore_keys!
  underscore_keys!
  values.select { |v| v.is_a?(Hash) }.each do |hsh|
    hsh.recursive_underscore_keys!
  end
  # burst thru at least one level of arrays
  values.select { |v| v.is_a?(Array) }.each do |ary|
    ary.each do |v|
      v.recursive_underscore_keys! if v.is_a?(Hash)
    end
  end
  self
end

#underscore_keys! ⇒ Object

as.rubyonrails.org/classes/ActiveSupport/CoreExtensions/Hash/Keys.html



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# File 'lib/ey_cloud_awareness/hash_ext.rb', line 4

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