commit a436135e14e5c890351b12fb6e38de109c012513
Author: Joel Pittet <joel@pittet.ca>
Date:   Mon Apr 20 08:35:03 2015 -0700

    statics

diff --git a/pathauto.module b/pathauto.module
index e8866af..2bc2fd0 100644
--- a/pathauto.module
+++ b/pathauto.module
@@ -362,6 +362,16 @@ function pathauto_field_attach_form($entity_type, $entity, &$form, &$form_state,
  * Implements hook_entity_load().
  */
 function pathauto_entity_load($entities, $type) {
+  static $path_auto_entity_types;
+  // Save the entity types used statically to avoid unnessasary queries later.
+  if (!isset($path_auto_entity_types)) {
+    $path_auto_entity_types = db_query("SELECT entity_type FROM {pathauto_state} GROUP BY entity_type")->fetchAllKeyed(0, 0);
+  }
+
+  // We aren't storing state for this type at the moment.
+  if (!isset($path_auto_entity_types[$type])) {
+    return;
+  }
   $states = pathauto_entity_state_load_multiple($type, array_keys($entities));
   foreach ($states as $id => $state) {
     if (!isset($entities[$id]->path['pathauto'])) {
@@ -453,20 +463,15 @@ function pathauto_entity_state_load($entity_type, $entity_id) {
  *   An array of entity IDs.
  */
 function pathauto_entity_state_load_multiple($entity_type, $entity_ids) {
-  try {
-       // filter out entity_ids that are not integers
-       $entity_ids = array_filter($entity_ids, 'is_numeric');
-       // if everything was filtered out, return an empty array
-       if(empty($entity_ids)) {
-               return array();
-       }
-    $pathauto_state = db_query("SELECT entity_id, pathauto FROM {pathauto_state} WHERE entity_type = :entity_type AND entity_id IN (:entity_ids)",
-      array(':entity_type' => $entity_type, ':entity_ids' => $entity_ids))->fetchAllKeyed();
-
-    return $pathauto_state;
-  } catch (Exception $ex) {
+  static $table_exists;
+
+  if (!isset($table_exists)) {
+    $table_exists = db_table_exists('pathauto_state');
+  }
+
+  if (!$table_exists) {
     if (!defined('MAINTENANCE_MODE')) {
-      $message = 'The <code>pathauto_state</code> table does not exist, so a default value was provided. Please make sure to run <code>update.php</code>';
+      $message = t('The <code>pathauto_state</code> table does not exist, so a default value was provided. Please make sure to run <code>update.php</code>');
       drupal_set_message($message, 'warning');
       watchdog('pathauto', $message, array(), WATCHDOG_WARNING);
     }
@@ -477,6 +482,17 @@ function pathauto_entity_state_load_multiple($entity_type, $entity_ids) {
 
     return $result;
   }
+
+  // Filter out entity_ids that are not integers.
+  $entity_ids = array_filter($entity_ids, 'is_numeric');
+  // if everything was filtered out, return an empty array
+  if (empty($entity_ids)) {
+    return array();
+  }
+  $sql = "SELECT entity_id, pathauto FROM {pathauto_state} WHERE entity_type = :entity_type AND entity_id IN (:entity_ids)";
+  $pathauto_state = db_query($sql, array(':entity_type' => $entity_type, ':entity_ids' => $entity_ids))->fetchAllKeyed();
+
+  return $pathauto_state;
 }
 
 /**