Class: Array

Inherits:
Object show all
Defined in:
lib/sequel/serializer/json_serializer.rb,
lib/support/core_extensions.rb,
lib/sequel/serializer/xml_serializer.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#to_flat_file_row(options = { :delimeter => ',', :enclosed_by => '' }) ⇒ Object 



4
5
6
7
8
 
# File 'lib/support/core_extensions.rb', line 4

def to_flat_file_row options = { :delimeter => ',', :enclosed_by => '' }
  self.inject("") do |csv, item|
    csv << "#{options[:enclosed_by]}#{item}#{options[:enclosed_by]}#{options[:delimeter]}"
  end.chop
end

#to_fos_json(options = {}) ⇒ Object 



111
112
113
114
115
116
117
 
# File 'lib/sequel/serializer/json_serializer.rb', line 111

def to_fos_json(options = {})
  if first.is_a? Sequel::Model
    collect{ |model| model.fill_hash(options[:methods]) }.to_json
  else
    to_json
  end
end

#to_fos_xml(options = {}) ⇒ Object 



474
475
476
 
# File 'lib/sequel/serializer/xml_serializer.rb', line 474

def to_fos_xml(options = {})
  to_xml({:skip_instruct=>true, :skip_types=>true, :dasherize=>false, :only=>[]}.merge(options))
end

#to_xml(options = {}) ⇒ Object

Returns a string that represents this array in XML by sending to_xml to each element. Active Record collections delegate their representation in XML to this method.

All elements are expected to respond to to_xml, if any of them does not an exception is raised.

The root node reflects the class name of the first element in plural if all elements belong to the same type and that’s not Hash:

customer.projects.to_xml

<?xml version="1.0" encoding="UTF-8"?>
<projects type="array">
  <project>
    <amount type="decimal">20000.0</amount>
    <customer-id type="integer">1567</customer-id>
    <deal-date type="date">2008-04-09</deal-date>
    ...
  </project>
  <project>
    <amount type="decimal">57230.0</amount>
    <customer-id type="integer">1567</customer-id>
    <deal-date type="date">2008-04-15</deal-date>
    ...
  </project>
</projects>

Otherwise the root element is “records”:

[{:foo => 1, :bar => 2}, {:baz => 3}].to_xml

<?xml version="1.0" encoding="UTF-8"?>
<records type="array">
  <record>
    <bar type="integer">2</bar>
    <foo type="integer">1</foo>
  </record>
  <record>
    <baz type="integer">3</baz>
  </record>
</records>

If the collection is empty the root element is “nil-classes” by default:

[].to_xml

<?xml version="1.0" encoding="UTF-8"?>
<nil-classes type="array"/>

To ensure a meaningful root element use the :root option:

customer_with_no_projects.projects.to_xml(:root => "projects")

<?xml version="1.0" encoding="UTF-8"?>
<projects type="array"/>

By default root children have as node name the one of the root singularized. You can change it with the :children option.

The options hash is passed downwards:

Message.all.to_xml(:skip_types => true)

<?xml version="1.0" encoding="UTF-8"?>
<messages>
  <message>
    <created-at>2008-03-07T09:58:18+01:00</created-at>
    <id>1</id>
    <name>1</name>
    <updated-at>2008-03-07T09:58:18+01:00</updated-at>
    <user-id>1</user-id>
  </message>
</messages>



442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
 
# File 'lib/sequel/serializer/xml_serializer.rb', line 442

def to_xml(options = {})
  raise "Not all elements respond to to_xml" unless all? { |e| e.respond_to? :to_xml }
  require 'builder' unless defined?(Builder)

  options = options.dup
  options[:root]     ||= all? { |e| e.is_a?(first.class) && first.class.to_s != "Hash" } ? first.class.name.underscore.pluralize.tr('/', '_') : "records"
  options[:children] ||= options[:root].singularize
  options[:indent]   ||= 2
  options[:builder]  ||= Builder::XmlMarkup.new(:indent => options[:indent])

  root     = options.delete(:root).to_s
  children = options.delete(:children)

  if !options.has_key?(:dasherize) || options[:dasherize]
    root = root.dasherize
  end

  options[:builder].instruct! unless options.delete(:skip_instruct)

  opts = options.merge({ :root => children })

  xml = options[:builder]
  if empty?
    xml.tag!(root, options[:skip_types] ? {} : {:type => "array"})
  else
    xml.tag!(root, options[:skip_types] ? {} : {:type => "array"}) {
      yield xml if block_given?
      each { |e| e.to_xml(opts.merge({ :skip_instruct => true })) }
    }
  end
end