Module: ActiveSupport::XmlMini

Extended by:
XmlMini
Included in:
XmlMini
Defined in:
activesupport/lib/active_support/xml_mini.rb

Overview

XmlMini

To use the much faster libxml parser:

gem 'libxml-ruby', '=0.9.7'
XmlMini.backend = 'LibXML'

Defined Under Namespace

Modules: FileLike

Constant Summary collapse

DEFAULT_ENCODINGS = 
{
  "binary" => "base64"
}
TYPE_NAMES = 
{
  "Symbol"     => "symbol",
  "Fixnum"     => "integer",
  "Bignum"     => "integer",
  "BigDecimal" => "decimal",
  "Float"      => "float",
  "TrueClass"  => "boolean",
  "FalseClass" => "boolean",
  "Date"       => "date",
  "DateTime"   => "dateTime",
  "Time"       => "dateTime",
  "Array"      => "array",
  "Hash"       => "hash"
}
FORMATTING = 
{
  "symbol"   => Proc.new { |symbol| symbol.to_s },
  "date"     => Proc.new { |date| date.to_s(:db) },
  "dateTime" => Proc.new { |time| time.xmlschema },
  "binary"   => Proc.new { |binary| ::Base64.encode64(binary) },
  "yaml"     => Proc.new { |yaml| yaml.to_yaml }
}
PARSING = 
{
  "symbol"       => Proc.new { |symbol|  symbol.to_s.to_sym },
  "date"         => Proc.new { |date|    ::Date.parse(date) },
  "datetime"     => Proc.new { |time|    Time.xmlschema(time).utc rescue ::DateTime.parse(time).utc },
  "integer"      => Proc.new { |integer| integer.to_i },
  "float"        => Proc.new { |float|   float.to_f },
  "decimal"      => Proc.new { |number|  BigDecimal(number) },
  "boolean"      => Proc.new { |boolean| %w(1 true).include?(boolean.to_s.strip) },
  "string"       => Proc.new { |string|  string.to_s },
  "yaml"         => Proc.new { |yaml|    YAML::load(yaml) rescue yaml },
  "base64Binary" => Proc.new { |bin|     ::Base64.decode64(bin) },
  "binary"       => Proc.new { |bin, entity| _parse_binary(bin, entity) },
  "file"         => Proc.new { |file, entity| _parse_file(file, entity) }
}

Instance Method Summary collapse

Instance Method Details

#backend ⇒ Object 



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# File 'activesupport/lib/active_support/xml_mini.rb', line 83

def backend
  current_thread_backend || @backend
end

#backend=(name) ⇒ Object 



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# File 'activesupport/lib/active_support/xml_mini.rb', line 87

def backend=(name)
  backend = name && cast_backend_name_to_module(name)
  self.current_thread_backend = backend if current_thread_backend
  @backend = backend
end

#rename_key(key, options = {}) ⇒ Object 



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# File 'activesupport/lib/active_support/xml_mini.rb', line 134

def rename_key(key, options = {})
  camelize  = options[:camelize]
  dasherize = !options.has_key?(:dasherize) || options[:dasherize]
  if camelize
    key = true == camelize ? key.camelize : key.camelize(camelize)
  end
  key = _dasherize(key) if dasherize
  key
end

#to_tag(key, value, options) ⇒ Object 



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# File 'activesupport/lib/active_support/xml_mini.rb', line 101

def to_tag(key, value, options)
  type_name = options.delete(:type)
  merged_options = options.merge(:root => key, :skip_instruct => true)

  if value.is_a?(::Method) || value.is_a?(::Proc)
    if value.arity == 1
      value.call(merged_options)
    else
      value.call(merged_options, key.to_s.singularize)
    end
  elsif value.respond_to?(:to_xml)
    value.to_xml(merged_options)
  else
    type_name ||= TYPE_NAMES[value.class.name]
    type_name ||= value.class.name if value && !value.respond_to?(:to_str)
    type_name   = type_name.to_s   if type_name
    type_name   = "dateTime" if type_name == "datetime"

    key = rename_key(key.to_s, options)

    attributes = options[:skip_types] || type_name.nil? ? { } : { :type => type_name }
    attributes[:nil] = true if value.nil?

    encoding = options[:encoding] || DEFAULT_ENCODINGS[type_name]
    attributes[:encoding] = encoding if encoding

    formatted_value = FORMATTING[type_name] && !value.nil? ?
      FORMATTING[type_name].call(value) : value

    options[:builder].tag!(key, formatted_value, attributes)
  end
end

#with_backend(name) ⇒ Object 



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# File 'activesupport/lib/active_support/xml_mini.rb', line 93

def with_backend(name)
  old_backend = current_thread_backend
  self.current_thread_backend = name && cast_backend_name_to_module(name)
  yield
ensure
  self.current_thread_backend = old_backend
end