book_helper_mute_hook_node_update

book_helper_mute_hook_node_update.patch

diff --git a/book_helper.module b/book_helper.module
index f3ffd45..fc21bf0 100755
--- a/book_helper.module
+++ b/book_helper.module
@@ -152,6 +152,21 @@ function book_helper_node_insert($node) {
  * Implements hook_node_update().
  */
 function book_helper_node_update($node) {
+  // Stathis 06/05/2019
+  // During the implementation of a massive node update, with Marlon's drush-node-update
+  // script, in order to change the urls from `sites/all/files` to `sites/default/files`
+  // (@see task https://teamwork.ramsalt.com/index.cfm#tasks/13052304)
+  // there were some exceptions thrown on hook implementation book_helper_node_update,
+  // because of data integrity problems: `PDOException: SQLSTATE[23000]: Integrity
+  // constraint violation: 1048 Column 'link_title' cannot be null in
+  // /Users/efpapado/www/kriseportalen.no-std/web/includes/database/database.inc:2227 [error]`
+  // Because of urgency, there is no time to properly fix it, so a rough patch is
+  // implemented that will mute this hook.
+  $book_helper_mute_hook_node_update = variable_get('book_helper_mute_hook_node_update', FALSE);
+  if ($book_helper_mute_hook_node_update) {
+    return;
+  }
+
   // Get link title sync and custom from the book.module's array().
   if (isset($node->book['book_helper_link_title_sync'])) {
     $node->book_helper['link_title_sync'] = $node->book['book_helper_link_title_sync'];