Node and property referencesΒΆ

Nodes can be referenced by unique id (if they are mix:referenceable) or by path. getValue returns the referenced node instance. Properties can only be referenced by path because they can not have a unique id.

The test document we imported above does not contain the type information we need to show this example. Lets create a special one and load it into the repository with Session::importXML:

<sv:node
     xmlns:mix="http://www.jcp.org/jcr/mix/1.0"
     xmlns:nt="http://www.jcp.org/jcr/nt/1.0"
     xmlns:xs="http://www.w3.org/2001/XMLSchema"
     xmlns:jcr="http://www.jcp.org/jcr/1.0"
     xmlns:sv="http://www.jcp.org/jcr/sv/1.0"
     xmlns:rep="internal"

    sv:name="idExample"
>
    <sv:property sv:name="jcr:primaryType" sv:type="Name">
        <sv:value>nt:unstructured</sv:value>
    </sv:property>

    <sv:node sv:name="target">
        <sv:property sv:name="jcr:primaryType" sv:type="Name">
            <sv:value>nt:unstructured</sv:value>
        </sv:property>
        <sv:property sv:name="jcr:mixinTypes" sv:type="Name">
            <sv:value>mix:referenceable</sv:value>
        </sv:property>
        <sv:property sv:name="jcr:uuid" sv:type="String">
            <sv:value>13543fc6-1abf-4708-bfcc-e49511754b40</sv:value>
        </sv:property>
        <sv:property sv:name="someproperty" sv:type="String">
            <sv:value>Some value</sv:value>
        </sv:property>
    </sv:node>

    <sv:node sv:name="source">
        <sv:property sv:name="jcr:primaryType" sv:type="Name">
            <sv:value>nt:unstructured</sv:value>
        </sv:property>
        <sv:property sv:name="reference" sv:type="WeakReference">
            <sv:value>13543fc6-1abf-4708-bfcc-e49511754b40</sv:value>
        </sv:property>
        <sv:property sv:name="path" sv:type="Path">
            <sv:value>../target/someproperty</sv:value>
        </sv:property>
    </sv:node>

</sv:node>

Now import the contents of that file instead of the other one. With this data, you can do this:

<?php
$node = $session->getNode('/idExample/source');
// will return you a node if the property is of type REFERENCE or WEAKREFERENCE
$othernode = $node->getPropertyValue('reference');

// force a node
$property = $node->getProperty('reference');
// will additionally try to resolve a PATH or NAME property and even work
// if the property is a STRING that happens to be a valid UUID or to
// denote an existing path
$othernode = $property->getNode();

// get a referenced property
$property = $node->getProperty('path');
$otherproperty = $property->getProperty();
echo $otherproperty->getName(); // someproperty
echo $otherproperty->getValue(); // Some value