Module: Serialize

Defined in:
lib/simple_mapper/support/bliss_serializer.rb

Constant Summary collapse

XML_OPTIONS = 
{
  :include_key => :attribute, # Can be false, :element, or :attribute
  :report_nil => true, # Sets an attribute nil="true" on elements that are nil, so that the reader doesn't read as an empty string
  :key_name => 'id', # Default key name
}

Class Method Summary collapse

Class Method Details

.hash_from_xml(xml, options = {}) ⇒ Object 



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# File 'lib/simple_mapper/support/bliss_serializer.rb', line 43

def self.hash_from_xml(xml,options={})
  xml.formatted(:xml).to_hash
end

.object_to_xml(obj, options = {}) ⇒ Object

Default key name



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# File 'lib/simple_mapper/support/bliss_serializer.rb', line 12

def self.object_to_xml(obj, options={})
  # Automatically set the key_name for DataMapper objects
  options.merge!(:key_name => obj.class.table.key.name) if obj.class.respond_to?(:table) && obj.class.respond_to?(:persistent?) && obj.class.persistent?
  # Should do the above also for ActiveRecord...
  to_xml(obj.class.name.underscore, obj.to_hash(options), options)
end

.to_xml(root, attributes = {}, options = {}) ⇒ Object 



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# File 'lib/simple_mapper/support/bliss_serializer.rb', line 18

def self.to_xml(root, attributes={}, options={})
  options = XML_OPTIONS.merge(options)
  attributes = attributes.dup.stringify_keys!

  doc = REXML::Document.new
  root_element = doc.add_element(root)

  case options[:include_key]
  when :attribute
    root_element.add_attribute(options[:key_name], attributes.delete(options[:key_name].to_s).to_s).extended do
      def self.to_string; %Q[#@expanded_name="#{to_s().gsub(/"/, '"')}"] end
    end
  when :element
    root_element.add_element(options[:key_name]) << REXML::Text.new(attributes.delete(options[:key_name].to_s).to_s)
  end

  attributes.each do |key,value|
    node = root_element.add_element(key)
    node << REXML::Text.new(value.to_s) unless value.nil?
    node.add_attribute('nil', 'true') if value.nil? && options[:report_nil]
  end

  doc
end