Fix potential white screen problems with instantiating IslandoraTuque.

admin/islandora.admin.inc

@@ -16,11 +16,6 @@ function islandora_repository_admin($form, &$form_state) {
   module_load_include('inc', 'islandora', 'includes/utilities');
   drupal_add_css(drupal_get_path('module', 'islandora') . '/css/islandora.admin.css');
 
-  if (!IslandoraTuque::exists()) {
-    IslandoraTuque::getError();
-    return;
-  }
-
   $form = array();
   if (isset($form_state['values']['islandora_base_url'])) {
     $url = $form_state['values']['islandora_base_url'];
@@ -29,7 +24,11 @@ function islandora_repository_admin($form, &$form_state) {
     $url = variable_get('islandora_base_url', 'http://localhost:8080/fedora');
   }
 
-  $connection = new IslandoraTuque(NULL, $url);
+  $connection = islandora_get_tuque_connection();
+  if (!$connection) {
+    return;
+  }
+
   try {
     $info = $connection->api->a->describeRepository();
   }

includes/IslandoraTuque.inc

@@ -78,6 +78,7 @@ class IslandoraTuque {
     }
 
     if (self::exists()) {
+      module_load_include('inc', 'islandora', 'includes/IslandoraTuqueWrapper');
       $this->connection = new IslandoraRepositoryConnection($url, $user_string, $pass_string);
       $this->connection->reuseConnection = TRUE;
       $this->api = new IslandoraFedoraApi($this->connection);
@@ -97,28 +98,3 @@ class IslandoraTuque {
     drupal_set_message(filter_xss($message), 'error', FALSE);
   }
 }
-
-/**
- * Just a wrapper around fetchings the IslandoraTuque object, with some very
- *  basic error logging.
- *
- * @return IslandoraTuque
- *   A IslandoraTuque instance
- */
-function islandora_get_tuque_connection() {
-  $tuque = &drupal_static(__FUNCTION__);
-  if (!$tuque) {
-    if (IslandoraTuque::exists()) {
-      require_once(__DIR__ . '/IslandoraTuqueWrapper.inc');
-      try {
-        $tuque = new IslandoraTuque();
-      } catch (Exception $e) {
-        drupal_set_message(t('Unable to connect to the repository %e', array('%e' => $e)), 'error');
-      }
-    }
-    else {
-      return NULL;
-    }
-  }
-  return $tuque;
-}

includes/solution_packs.inc

@@ -203,18 +203,11 @@ function islandora_solution_pack_form_submit($form, &$form_state) {
  */
 function islandora_batch_reingest_object($object_model, &$context) {
   module_load_include('inc', 'islandora', 'includes/utilities');
-
-  global $user;
   global $base_url;
-  // new connection
-  try {
-    $connection = new IslandoraTuque($user);
-  }
-  catch (Exception $e) {
-    drupal_set_message(t('Unable to connect to the repository %e', array('%e' => $e)), 'error');
+  $connection = islandora_get_tuque_connection();
+  if (!$connection) {
     return;
   }
-
   if (!empty($object_model) && is_array($object_model)) {
     $pid = $object_model['pid'];
     if (!islandora_is_valid_pid($pid)) {
@@ -293,15 +286,7 @@ function islandora_install_solution_pack($module_name = NULL, $op = 'install') {
       return;
     }
 
-    // create new connection
-    try {
-      $connection = new IslandoraTuque($user);
-    }
-    catch (Exception $e) {
-      drupal_set_message(st('Unable to connect to the repository %e', array('%e' => $e)), 'error');
-      return;
-    }
-
+    $connection = islandora_get_tuque_connection();
     // get object models
     $enabled_solution_packs = module_invoke_all('islandora_required_objects');
     $islandora_required_objects = $module_name . '_islandora_required_objects';

includes/utilities.inc

@@ -98,14 +98,17 @@ function islandora_is_valid_dsid($dsid) {
  */
 function islandora_describe_repository($url = NULL) {
   $url = isset($url) ? $url : variable_get('islandora_base_url', 'http://localhost:8080/fedora');
-  $connection = new IslandoraTuque(NULL, $url);
-  try {
-    $info = $connection->api->a->describeRepository();
-    return $info;
-  }
-  catch (RepositoryException $e) {
-    return FALSE;
+  $connection = islandora_get_tuque_connection();
+  if ($connection) {
+    try {
+      $info = $connection->api->a->describeRepository();
+      return $info;
+    }
+    catch (RepositoryException $e) {
+      return FALSE;
+    }
   }
+  return FALSE;
 }
 
 /**
@@ -375,7 +378,6 @@ function islandora_get_datastreams_requirements_from_content_model(FedoraObject
  *   An ingestable NewFedoraObject.
  */
 function islandora_prepare_new_object($namespace = NULL, $label = NULL, $datastreams = array(), $content_models = array(), $relationships = array()) {
-  module_load_include('inc', 'islandora', 'includes/IslandoraTuque');
   global $user;
   $tuque = islandora_get_tuque_connection();
   $object = isset($namespace) ? $tuque->repository->constructObject($namespace) : new NewFedoraObject(NULL, $tuque->repository);

islandora.module

@@ -454,6 +454,31 @@ function islandora_default_islandora_view_object($object) {
   return array('Default output' => $output);
 }
 
+/**
+ * Just a wrapper around fetchings the IslandoraTuque object, with some very
+ *  basic error logging.
+ *
+ * @return IslandoraTuque
+ *   A IslandoraTuque instance
+ */
+function islandora_get_tuque_connection() {
+  module_load_include('inc', 'islandora', 'includes/IslandoraTuque');
+  $tuque = &drupal_static(__FUNCTION__);
+  if (!$tuque) {
+    if (IslandoraTuque::exists()) {
+      try {
+        $tuque = new IslandoraTuque();
+      } catch (Exception $e) {
+        drupal_set_message(t('Unable to connect to the repository %e', array('%e' => $e)), 'error');
+      }
+    }
+    else {
+      return NULL;
+    }
+  }
+  return $tuque;
+}
+
 /**
  * A helper function to get a connection and return an object for objects
  * specified in the menu path as '%islandora_object'.
@@ -471,7 +496,6 @@ function islandora_default_islandora_view_object($object) {
  *   drupal_access_denied().
  */
 function islandora_object_load($object_id) {
-  module_load_include('inc', 'islandora', 'includes/IslandoraTuque');
   $tuque = islandora_get_tuque_connection();
   if ($tuque) {
     try {
@@ -603,12 +627,21 @@ function islandora_islandora_undeletable_datastreams(array $models) {
  *
  * @return FedoraObject
  *   The ingested FedoraObject, after running the pre/post ingest hooks.
+ *   Returns FALSE if the ingest failed.
  */
 function islandora_add_object(NewFedoraObject &$object) {
   islandora_pre_add_object($object);
-  $object->repository->ingestObject($object);
-  islandora_post_add_object($object);
-  return $object;
+  try {
+    $object->repository->ingestObject($object);
+    islandora_post_add_object($object);
+    return $object;
+  } catch (Exception $e) {
+    watchdog('islandora', 'Failed to ingest object: @pid</br>code: @code<br/>message: @msg', array(
+        '@pid' => $object->id,
+        '@code' => $e->getCode(),
+        '@msg' => $e->getMessage()), WATCHDOG_ERROR);
+  }
+  return FALSE;
 }
 
 /**