Extract Drupal collection view assembly into separate function.

Hurray for enabling code reuse!

CollectionClass.inc

@@ -673,49 +673,32 @@ class CollectionClass {
   }
   
   /**
-   * render collection
-   * @global type $base_url
-   * @param type $content
-   * @param type $pid
-   * @param type $dsId
-   * @param type $collection
-   * @param int $pageNumber
-   * @return type 
+   * Assemble results in a somewhat more logical manner...
+   * 
+   * ...  Compared to generating a table in XSLT to contain a list (as
+   * renderCollection() used to do/does by default).
+   * 
+   * @param $sparql_results array
+   *   The array of results as yielded by ObjectHelper::parseSparqlResults()
+   *   (and those associated functions which make use of it)
+   * @return
+   *   An array to be passed to drupal_render, containing a pager, an unordered
+   *   list of items, and another pager.
    */
-  function renderCollection($content, $pid, $dsId, $collectionName, $pageNumber = NULL) {
-    $path = drupal_get_path('module', 'fedora_repository');
-    global $base_url;
-    $collection_pid = $pid; //we will be changing the pid later maybe
-    $parsedContent = NULL;
-    $contentModels = $this->collectionObject->get_content_models_list($pid);
-    $isCollection = FALSE;
-    //if this is a collection object store the $pid in the session as it will come in handy
-    //after a purge or ingest to return to the correct collection.
-
-    $fedoraItem = NULL;
-
-    if (empty($collectionName)) {
-      $collectionName = menu_get_active_title();
-    }
-    
-    $xslContent = $this->getXslContent($pid, $path);
-
-    $objectList = '';
-    if (isset($content) && $content != FALSE) {
-      if (!$xslContent) { //Didn't find an XSLT.
-        $intermediate_results = ObjectHelper::parse_sparql_results($content);
-        unset($content);
-        
+  public static function assembleCollectionView($sparql_results) {
     $per_page = 20; //XXX:  Make this configurable.
     $pager_name = 0;
-        $total = count($intermediate_results);
+    $total = count($sparql_results);
     $pager_page = self::hackPager($pager_name, $per_page, $total);
     
     $results = array();
-        foreach (array_slice($intermediate_results, $per_page * $pager_page, $per_page) as $result) {
+    foreach (array_slice($sparql_results, $per_page * $pager_page, $per_page) as $result) {
       $title = $result['title'];
       $obj_path = "fedora/repository/{$result['object']}";
-          $thumbnail = theme('image', "$obj_path/TN", $title, $title, array(), FALSE);
+      $tn_path = ($result['thumbnail'] ?
+        "fedora/repository/{$result['thumbnail']}":
+        "$obj_path/TN");
+      $thumbnail = theme('image', $tn_path, $title, $title, array(), FALSE);
       $results[] = array(
           'data' => l($thumbnail, $obj_path, array(
               'html' => TRUE,
@@ -738,13 +721,64 @@ class CollectionClass {
           '@last' => $last,
           '@total' => $total,
       ));
-          //$objectList = '<h3>' . $results_range_text . '</h3>'; 
-          $objectList .= theme('pager', array(), $per_page, $pager_name);
-          $objectList .= theme('item_list', $results, $result_range_text, 'ul', array(
+      
+      return array(
+        array(
+          '#type' => 'markup',
+          '#value' => theme('pager', array(), $per_page, $pager_name),
+        ),
+        array(
+          '#type' => 'markup',
+          '#value' => theme('item_list', $results, $result_range_text, 'ul', array(
             'class' => 'islandora-collection-results-list',
-          ));
-          $objectList .= theme('pager', array(), $per_page, $pager_name);
+          ))
+        ),
+        array(
+          '#type' => 'markup',
+          '#value' => theme('pager', array(), $per_page, $pager_name)
+        ),
+      );
+    }
+  }
+  
+  /**
+   * render collection
+   * @global type $base_url
+   * @param type $content
+   * @param type $pid
+   * @param type $dsId
+   * @param type $collection
+   * @param int $pageNumber
+   * @return type 
+   */
+  function renderCollection($content, $pid, $dsId, $collectionName, $pageNumber = NULL) {
+    $path = drupal_get_path('module', 'fedora_repository');
+    global $base_url;
+    $collection_pid = $pid; //we will be changing the pid later maybe
+    $parsedContent = NULL;
+    $contentModels = $this->collectionObject->get_content_models_list($pid);
+    $isCollection = FALSE;
+    //if this is a collection object store the $pid in the session as it will come in handy
+    //after a purge or ingest to return to the correct collection.
+
+    $fedoraItem = NULL;
+
+    if (empty($collectionName)) {
+      $collectionName = menu_get_active_title();
     }
+    
+    $xslContent = $this->getXslContent($pid, $path);
+
+    $objectList = '';
+    if (isset($content) && $content != FALSE) {
+      if (!$xslContent) { //Didn't find an XSLT.
+        return drupal_render(
+          self::assembleCollectionView(
+            $this->collectionObject->parseSparqlResults(
+              $content
+            )
+          )
+        );
       }
       else {
         if (!$pageNumber) {