Class: YamlConvertor::Convertor

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

Instance Method Summary collapse

Instance Method Details

#build(flat_hash) ⇒ Object 



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# File 'lib/yaml_convertor.rb', line 26

def build(flat_hash)
  # create a hash where every key's value is an empty hash
  # hash[key] <- creates a key and its value will be {}
  hash = Hash.new{ |h, k| h[k] = Hash.new(&h.default_proc) }  
  flat_hash.each_pair do |key, value|
    tmp = hash
    arr_keys = key.split('.')
    arr_keys.each do |item|
      if item.eql?(arr_keys.last)
        tmp[item] = value
      else
        tmp = tmp[item] #creates key
      end
    end
  end
  hash
end

#flatten(nested_hash, keyname = '') ⇒ Object 



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# File 'lib/yaml_convertor.rb', line 14

def flatten(nested_hash, keyname = '')
  hash = {}
  nested_hash.each_pair do |key, value|
    if value.is_a?(Hash)
      name = keyname.empty? ? "#{key}" : "#{keyname}.#{key}"
      hash.merge!(flatten(value, name))
    else
      hash["#{keyname}.#{key}"] = value
    end
  end
  hash
end