updated get_ref_relationships to accomodate new namespaces

api/fedora_item.inc

@@ -158,7 +158,7 @@ class Fedora_Item {
 
     // Fedora has some problems getting files from HTTPS connections sometimes, so if we are getting a file
     // from the local drupal, we try to pass a HTTP url instead of a HTTPS one.
-    if(stripos($datastream_url, 'https://') !== FALSE && stripos($datastream_url, $base_url) !== FALSE) {
+    if (stripos($datastream_url, 'https://') !== FALSE && stripos($datastream_url, $base_url) !== FALSE) {
       $datastream_url = str_ireplace('https://', 'http://', $datastream_url);
     }
 
@@ -348,10 +348,10 @@ RDF;
     $rels = $relsextxml->getElementsByTagNameNS($namespaceURI, $relationship);
     if (!empty($rels)) {
       // iterate backwards so if we delete something our pointer doesn't get out of sync
-      for ($i = $rels->length; $i>0; $i--) {
-        $rel = $rels->item($i-1);
+      for ($i = $rels->length; $i > 0; $i--) {
+        $rel = $rels->item($i - 1);
 //      foreach ($rels as $rel) { // moving forward like this caused iteration errors when something was deleted
-        if (  //If either no object is specified, or the object matches (in either the literal or URI case), remove this node from it's parent, and mark as changed.
+        if (//If either no object is specified, or the object matches (in either the literal or URI case), remove this node from it's parent, and mark as changed.
             empty($object) ||
             (($literal_value == RELS_TYPE_URI) && $rel->getAttributeNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'resource') == $object) ||
             (($literal_value == RELS_TYPE_PLAIN_LITERAL) && $rel->textContent == $object) ||
@@ -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, '*');
-    $allTags[] = $relsextxml->getElementsByTagNameNS(FEDORA_MODEL_URI, '*');
-    $allTags[] = $relsextxml->getElementsByTagNameNS(ISLANDORA_PAGE_URI, '*');
+    foreach ($namespaces as $namespace) {
+      $allTags[] = $relsextxml->getElementsByTagNameNS($namespace, '*');
+    }
+
     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'));
-        
+        $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;
       }
     }
@@ -980,8 +1001,8 @@ RDF;
 
     $params = array(
       'pid' => $this->pid,
-      'ownerId' => (($ownerId !== NULL)? //Default to the current owner if none is provided.
-        $ownerId:
+      'ownerId' => (($ownerId !== NULL) ? //Default to the current owner if none is provided.
+          $ownerId :
           $this->objectProfile->objOwnerId),
       'state' => $state,
       'label' => $label,
@@ -1034,7 +1055,7 @@ RDF;
       );
       $result = drupal_http_request($fixed_url);
 
-      if ((int)($result->code / 100) === 2) {
+      if ((int) ($result->code / 100) === 2) {
         $content = $result->data;
       }
       else {
@@ -1148,7 +1169,7 @@ RDF;
 
     // Fedora has some problems getting files from HTTPS connections sometimes, so if we are getting a file
     // from the local drupal, we try to pass a HTTP url instead of a HTTPS one.
-    if(stripos($external_url, 'https://') !== FALSE && stripos($external_url, $base_url) !== FALSE) {
+    if (stripos($external_url, 'https://') !== FALSE && stripos($external_url, $base_url) !== FALSE) {
       $external_url = str_ireplace('https://', 'http://', $external_url);
     }
 
@@ -1228,7 +1249,7 @@ RDF;
       self::$connection_helper = new ConnectionHelper();
     }
     $url = (
-      in_array($function, self::$SoapManagedFunctions)?
+        in_array($function, self::$SoapManagedFunctions) ?
             variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/wsdl?api=API-M') :
             variable_get('fedora_soap_url', 'http://localhost:8080/fedora/services/access?wsdl')
         );