Possible to set xsi:schemalocation?

[netsensei]

While serializing a set of PHP objects into XML: I'm failing to set the xsi:schemalocation attribute on the root element.

I'm using YML annotations for the root level element.

I've tried configuring it like this:

myRootElement:
    xml_namespaces:
        "example": "http://www.example-schema.org"
        "xsi": "http://www.w3.org/2001/XMLSchema-instance"
        "xsi:location": "http//example.com/schema.xsd"

This will throw an error DOMException: Namespace Error in XmlSerializationVisitor.php on line 203. The addNamespaceAttributes internally always prefixes xmlns to the prefix, so you end up with something like: xmlns:xsi:location. The setAttributeNS call is not accepting that as a qualified attribute name.

Is there a way to work around this?

[netsensei]

Okay, looks like #433 provides a workaround:

The idea is that I add an extra property to my root class and add an XmlAttributeMap property which defines the xsi:location namespace instead of using xml_namespaces:

Something along these lines:

YAML:

myRootElement:
    xml_namespaces:
        "example": "http://www.example-schema.org"
        "xsi": "http://www.w3.org/2001/XMLSchema-instance"
   properties:
       xsiLocation:
          xml_attribute_map: true

PHP

class myRootElement {
   private $xsiLocation;

   public function __construct()
   {
      $this->xsiLocation = ["xsi:location" => "http//example.com/schema.xsd"];
   }
}

This feels a it counterintuitive: are there better solutions / alternatives where I can avoid hard coding the xsd location in a class?

[netsensei]

Okay. I tried the above in my own project: this works for me. Gave it some more thought: xsi:location is a property within the xsi namespace. So it's not a namespace in it's own right: It's an attribute. The only confusing thing is that it's an attribute to the same element which defines the xsi namespace.

So, putting it in xml_attribute_map instead of xml_namespaces is perfectly sound.

I'll close this.