Module: XmlParsingHelper

Included in:

Rubillow::Models::Base, Rubillow::Models::DeepSearchResult

Defined in:

lib/rubillow/helpers/xml_parsing_helper.rb

Overview

Helper methods for parsing XML.

Instance Method Summary

• #xpath_if_present(path, attribute, xml, nil_value = nil) ⇒ String

  is nil or if the node is not present.

Instance Method Details

#xpath_if_present(path, attribute, xml, nil_value = nil) ⇒ String

is nil or if the node is not present.

If the node is not present, return nil or nil_value if specified.

Parameters:

• path (String) —

  Xpath query to find the node in XML.

• attribute (Symbol) —

  Attribute on the node to call and return as the value.

• xml (Nokogiri::XML) —

  A nokogiri parser object to call #xpath.

• nil_value (optional) (defaults to: nil) —

  A value to return if the attribute on the node

Returns:

• (String) —

  Value from an attribute of an xpath node, if present.

# File 'lib/rubillow/helpers/xml_parsing_helper.rb', line 11

def xpath_if_present(path, attribute, xml, nil_value = nil)
  text = xml.xpath(path).first.send(attribute) unless xml.xpath(path).empty?
  text ||= nil_value
end