diff --git a/mod/workshop/classes/event/assessable_uploaded.php b/mod/workshop/classes/event/assessable_uploaded.php
new file mode 100644
index 00000000000..df889c5a959
--- /dev/null
+++ b/mod/workshop/classes/event/assessable_uploaded.php
@@ -0,0 +1,130 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * mod_workshop assessable uploaded event.
+ *
+ * @package    mod_workshop
+ * @copyright  2013 Frédéric Massart
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_workshop\event;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * mod_workshop assessable uploaded event class.
+ *
+ * @package    mod_workshop
+ * @copyright  2013 Frédéric Massart
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class assessable_uploaded extends \core\event\assessable_uploaded {
+
+    /**
+     * Legacy log data.
+     *
+     * @var array
+     */
+    protected $legacylogdata = null;
+
+    /**
+     * Returns localised description of what happened.
+     *
+     * @return \lang_string
+     */
+    public function get_description() {
+        return new \lang_string('event_assessable_uploaded_desc', 'mod_workshop', $this->get_data());
+    }
+
+    /**
+     * Legacy event data if get_legacy_eventname() is not empty.
+     *
+     * @return stdClass
+     */
+    protected function get_legacy_eventdata() {
+        $eventdata = new \stdClass();
+        $eventdata->modulename   = 'workshop';
+        $eventdata->cmid         = $this->context->instanceid;
+        $eventdata->itemid       = $this->objectid;
+        $eventdata->courseid     = $this->courseid;
+        $eventdata->userid       = $this->userid;
+        $eventdata->content      = $this->other['content'];
+        if ($this->other['pathnamehashes']) {
+            $eventdata->pathnamehashes = $this->other['pathnamehashes'];
+        }
+        return $eventdata;
+    }
+
+    /**
+     * Return the legacy event name.
+     *
+     * @return string
+     */
+    protected function get_legacy_eventname() {
+        return 'assessable_content_uploaded';
+    }
+
+    /**
+     * Return the legacy log data.
+     *
+     * @return array
+     */
+    protected function get_legacy_logdata() {
+        return $this->legacylogdata;
+    }
+
+    /**
+     * Return localised event name.
+     *
+     * @return \lang_string
+     */
+    public static function get_name() {
+        return new \lang_string('event_assessable_uploaded', 'mod_workshop');
+    }
+
+    /**
+     * Get URL related to the action.
+     *
+     * @return \moodle_url
+     */
+    public function get_url() {
+        return new \moodle_url('/mod/workshop/submission.php',
+            array('cmid' => $this->context->instanceid, 'id' => $this->objectid));
+    }
+
+    /**
+     * Init method.
+     *
+     * @return void
+     */
+    protected function init() {
+        parent::init();
+        $this->data['objecttable'] = 'workshop_submissions';
+    }
+
+    /**
+     * Set the legacy log data.
+     *
+     * @param array $legacylogdata
+     * @return void
+     */
+    public function set_legacy_logdata($legacylogdata) {
+        $this->legacylogdata = $legacylogdata;
+    }
+
+}
diff --git a/mod/workshop/lang/en/workshop.php b/mod/workshop/lang/en/workshop.php
index 73fd955c8a4..8931e40a342 100644
--- a/mod/workshop/lang/en/workshop.php
+++ b/mod/workshop/lang/en/workshop.php
@@ -106,6 +106,8 @@ $string['evaluation'] = 'Grading evaluation';
 $string['evaluationmethod'] = 'Grading evaluation method';
 $string['evaluationmethod_help'] = 'The grading evaluation method determines how the grade for assessment is calculated. You can let it re-calculate grades repeatedly with different settings unless you are happy with the result.';
 $string['evaluationsettings'] = 'Grading evaluation settings';
+$string['event_assessable_uploaded'] = 'A submission has been uploaded.';
+$string['event_assessable_uploaded_desc'] = 'User {$a->userid} has uploaded the submission {$a->objectid}.';
 $string['example'] = 'Example submission';
 $string['exampleadd'] = 'Add example submission';
 $string['exampleassess'] = 'Assess example submission';
diff --git a/mod/workshop/locallib.php b/mod/workshop/locallib.php
index c377cf0a00e..53f3b58c526 100644
--- a/mod/workshop/locallib.php
+++ b/mod/workshop/locallib.php
@@ -1510,8 +1510,10 @@ class workshop {
      * @param string $action to be logged
      * @param moodle_url $url absolute url as returned by {@see workshop::submission_url()} and friends
      * @param mixed $info additional info, usually id in a table
+     * @param bool $return true to return the arguments for add_to_log.
+     * @return void|array array of arguments for add_to_log if $return is true
      */
-    public function log($action, moodle_url $url = null, $info = null) {
+    public function log($action, moodle_url $url = null, $info = null, $return = false) {
 
         if (is_null($url)) {
             $url = $this->view_url();
@@ -1522,7 +1524,11 @@ class workshop {
         }
 
         $logurl = $this->log_convert_url($url);
-        add_to_log($this->course->id, 'workshop', $action, $logurl, $info, $this->cm->id);
+        $args = array($this->course->id, 'workshop', $action, $logurl, $info, $this->cm->id);
+        if ($return) {
+            return $args;
+        }
+        call_user_func_array('add_to_log', $args);
     }
 
     /**
diff --git a/mod/workshop/submission.php b/mod/workshop/submission.php
index 3d56078d02e..183889ce6c8 100644
--- a/mod/workshop/submission.php
+++ b/mod/workshop/submission.php
@@ -187,11 +187,12 @@ if ($edit) {
         if ($workshop->phase == workshop::PHASE_ASSESSMENT) {
             $formdata->late = $formdata->late | 0x2;
         }
+        $logdata = null;
         if (is_null($submission->id)) {
             $submission->id = $formdata->id = $DB->insert_record('workshop_submissions', $formdata);
-            $workshop->log('add submission', $workshop->submission_url($submission->id), $submission->id);
+            $logdata = $workshop->log('add submission', $workshop->submission_url($submission->id), $submission->id, true);
         } else {
-            $workshop->log('update submission', $workshop->submission_url($submission->id), $submission->id);
+            $logdata = $workshop->log('update submission', $workshop->submission_url($submission->id), $submission->id, true);
             if (empty($formdata->id) or empty($submission->id) or ($formdata->id != $submission->id)) {
                 throw new moodle_exception('err_submissionid', 'workshop');
             }
@@ -211,17 +212,18 @@ if ($edit) {
         // send submitted content for plagiarism detection
         $fs = get_file_storage();
         $files = $fs->get_area_files($workshop->context->id, 'mod_workshop', 'submission_attachment', $submission->id);
-        $eventdata = new stdClass();
-        $eventdata->modulename   = 'workshop';
-        $eventdata->cmid         = $cm->id;
-        $eventdata->itemid       = $submission->id;
-        $eventdata->courseid     = $course->id;
-        $eventdata->userid       = $USER->id;
-        $eventdata->content      = $formdata->content;
-        if ($files) {
-            $eventdata->pathnamehashes = array_keys($files);
-        }
-        events_trigger('assessable_content_uploaded', $eventdata);
+
+        $params = array(
+            'context' => $workshop->context,
+            'objectid' => $submission->id,
+            'other' => array(
+                'content' => $formdata->content,
+                'files' => array_keys($files)
+            )
+        );
+        $event = \mod_workshop\event\assessable_uploaded::create($params);
+        $event->set_legacy_logdata($logdata);
+        $event->trigger();
 
         redirect($workshop->submission_url($formdata->id));
     }