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How to open, parse and process an XML file using the Ox pearl, like with a Nokogiri gem?

I want to open an external XML file, parse it and use the data to store in my database. I do this with Nokogiri quite easily:

file = '...external.xml'
xml = Nokogiri::XML(open(file))

xml.xpath('//Element').each do |element|
  # process elements and save to Database e.g.:
  @data = Model.new(:attr => element.at('foo').text)
  @data.save      
end

Now I want to try (possibly faster) Ox gem ( https://github.com/ohler55/ox ) - but I don’t understand how to open and process a file from a documentary.

Any equivalent code examples for the above code would be great! Thank!

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2 answers

You cannot use XPath to search for nodes in Ox, but Ox provides a method locate. You can use it like this:

xml = Ox.parse(%Q{
  <root>
    <Element>
      <foo>ex1</foo>
    </Element>
    <Element>
      <foo>ex2</foo>
    </Element>
  </root>
}.strip)

xml.locate('Element/foo/^Text').each do |t|
  @data = Model.new(:attr => t)
  @data.save      
end

# or if you need to do other stuff with the element first
xml.locate('Element').each do |elem|
  # do stuff
  @data = Model.new(:attr => elem.locate('foo/^Text').first)
  @data.save      
end

, . locate . element.rb.

+8

:

doc2 = Ox.parse(xml)

Ruby, xml = IO.read('filename.xml') ( ). :

doc = Ox.parse(IO.read(filename))

XML UTF-8, :

doc = Ox.parse( File.open(filename,"r:UTF-8",&:read) )
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