Class: Google4R::Checkout::PrivateDataParser

Inherits:
Object
  • Object
show all
Defined in:
lib/google4r/checkout/notifications.rb

Overview

Class with static methods to parse the <merchant-private(-item)-data> tags.

Class Method Summary collapse

Class Method Details

.element_to_value(element) ⇒ Object

Returns a Hash with the representation of the structure in item/merchant-private-item-data.



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# File 'lib/google4r/checkout/notifications.rb', line 671

def self.element_to_value(element)
  # The return value; We will iterate over all children below. When we see a REXML::Element
  # child then we set result to a Hash if it is nil. After the result is a Hash, we will
  # ignore all REXML::Text children.
  # Otherwise, result will be set to the REXML::Text node's value if it is not whitespace
  # only.
  result = nil
  
  element.each_child do |child|
    case child
    when REXML::Element
      result ||= Hash.new
      child_value = self.element_to_value(child)

      # <foo>bar</foo>               becomes 'foo' => 'bar
      # <foo>foo</foo><foo>bar</foo> becomes 'foo' => [ 'foo', 'bar' ]
      if result[child.name].nil? then
        result[child.name] = child_value
      elsif result[child.name].kind_of?(Array) then
        result[child.name] << child_value
      else
        tmp = result[child.name]
        result[child.name] = [ tmp, child_value ]
      end
    when REXML::Text
      next if result.kind_of?(Hash) # ignore text if we already found a tag
      str = child.value.strip
      result = str if str.length > 0
    else
      # ignore
    end
  end
  
  return result
end