Class: XmlTreeBuilder

Inherits:
XmlNodeBuilder show all
Defined in:
app/services/xml_tree_builder.rb

Constant Summary

Constants inherited from XmlNodeBuilder

XmlNodeBuilder::XML_VERSION

Instance Attribute Summary collapse

Attributes inherited from XmlNodeBuilder

#document, #node

Instance Method Summary collapse

Methods inherited from XmlNodeBuilder

#build_document, #xml_document_args, #xml_version

Constructor Details

#initialize(children: [], **options) ⇒ XmlTreeBuilder

Returns a new instance of XmlTreeBuilder.

Parameters:

  • children (Array<XmlNodeBuilder>) (defaults to: []) —

    XmlNodeBuilder objects for the child nodes in the XML tree

  • options (Hash) —

    arguments for the root XmlElementBuilder



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# File 'app/services/xml_tree_builder.rb', line 70

def initialize(children: [], **options)
  @root_builder_options = options.dup
  @children = parse_child_entries(children)

  super(document: document)
end

Instance Attribute Details

#children ⇒ Object (readonly)

Returns the value of attribute children.



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# File 'app/services/xml_tree_builder.rb', line 4

def children
  @children
end

#root_builder_options ⇒ Object (readonly)

Returns the value of attribute root_builder_options.



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# File 'app/services/xml_tree_builder.rb', line 4

def root_builder_options
  @root_builder_options
end

Instance Method Details

#build ⇒ Nokogiri::XML::Element

Returns:

  • (Nokogiri::XML::Element) 


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# File 'app/services/xml_tree_builder.rb', line 21

def build
  nodes = children.map(&:build)
  nodes.each do |child|
    root_builder.add_child(child)
  end

  node
end

#null_builder ⇒ Object 



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# File 'app/services/xml_tree_builder.rb', line 6

def null_builder
  @null_builder ||= XmlNullBuilder.new(**root_builder_options)
end

#parse_child_entries(entries) ⇒ Array<Nokogiri::XML::Node>

rubocop:disable Metrics/AbcSize rubocop:disable Metrics/MethodLength

Parameters:

  • entries (Array<Hash>) —

    options for constructing each child node

Returns:

  • (Array<Nokogiri::XML::Node>) —

    an array of XML child nodes



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# File 'app/services/xml_tree_builder.rb', line 35

def parse_child_entries(entries)
  instances = [:default]
  builders = entries.map do |child_entry|
    child_entry.values.map do |child_args|
      multiple_children = child_args[:multiple] || false

      if multiple_children
        message = child_args[:object_method]

        method_args = child_args[:args] || []
        instances = root_builder.presenter.send(message, *method_args)
      end

      instances.each_with_index.map do |_instance, i|
        builder_args = child_args.dup
        builder_args[:presenter] = root_builder.presenter
        builder_args[:document] = document

        if multiple_children
          builder_args[:index] = i
          builder_args.delete(:multiple)
        end
        builder_args.delete(:object_method)
        builder_args.delete(:args)
        self.class.new(**builder_args)
      end
    end
  end
  builders.flatten
end

#root_builder ⇒ Object 



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# File 'app/services/xml_tree_builder.rb', line 10

def root_builder
  @root_builder ||= begin
                      default_builder = XmlElementBuilder.new(**root_builder_options)
                      null_builder if default_builder.blank?
                      default_builder
                    end
end