Removed unused transaction in external function and added global $USE…

…R reference. Issue #25.

classes/external/search_book_content.php

@@ -94,7 +94,7 @@ public static function execute_returns() {
      * array of objects each describing one search term occurance with text snippet and location data.
      */
     public static function execute($courseid, $searchstring, $contextlength) {
-        global $CFG, $DB;
+        global $USER;
         require_once(__DIR__ . '/../../locallib.php');
 
         // Validate parameter.
@@ -107,9 +107,6 @@ public static function execute($courseid, $searchstring, $contextlength) {
             ]
         );
 
-        // If an exception is thrown in the below code, all DB queries in this code will be rollback.
-        $transaction = $DB->start_delegated_transaction();
-
         $courseid = $params['courseid'];
         $searchstring = $params['searchstring'];
         $contextlength = $params['contextlength'];

version.php

@@ -23,8 +23,8 @@
  */
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2024101204;  // The current plugin version (Date: YYYYMMDDHH).
+$plugin->version   = 2024101206;  // The current plugin version (Date: YYYYMMDDHH).
 $plugin->requires  = 2020061510;  // Requires this Moodle version.
 $plugin->component = 'block_booksearch';  // Full name of the plugin (used for diagnostics).
-$plugin->release = '3.2.1';
+$plugin->release = '3.3';
 $plugin->maturity = MATURITY_STABLE;