updated get_ref_relationships to accomodate new namespaces

api/fedora_item.inc

@@ -752,8 +752,26 @@ RDF;
     return $relationships;
   }
 
-  function get_rdf_relationships() {
+  /**
+   * Retrieves RELS-EXT values from item
+   *
+   * @param array $namespaces
+   * @return array
+   */
 
+  function get_rdf_relationships($namespaces = null) {
+    if ($namespaces == NULL) {
+      $namespaces = array(
+        RELS_EXT_URI,
+        FEDORA_MODEL_URI,
+        ISLANDORA_PAGE_URI,
+        ISLANDORA_RELS_EXT_URI,
+        ISLANDORA_RELS_INT_URI,
+      );
+    }
+    if (!is_array($namespaces)) {
+      $namespaces = array($namespaces);
+    }
     $relationships = array();
     try {
       $relsext = $this->get_datastream_dissemination('RELS-EXT');
@@ -767,13 +785,16 @@ RDF;
     $relsextxml->loadXML($relsext);
     $relsextxml->normalizeDocument();
     $allTags = array();
-    $allTags[] = $relsextxml->getElementsByTagNameNS(RELS_EXT_URI, '*');
+    foreach ($namespaces as $namespace) {
-    $allTags[] = $relsextxml->getElementsByTagNameNS(FEDORA_MODEL_URI, '*');
+      $allTags[] = $relsextxml->getElementsByTagNameNS($namespace, '*');
-    $allTags[] = $relsextxml->getElementsByTagNameNS(ISLANDORA_PAGE_URI, '*');
+    }
+
     foreach ($allTags as $tags) {
       foreach ($tags as $child) {
         $value = preg_replace('/info:fedora\//', '', $child->getAttributeNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'resource'));
-        
+        if (!$value) {
+          $value = $child->textContent;
+        }
         $relationships[$child->tagName][] = $value;
       }
     }