MDL-41101 mod_assign: replaced 'view submission' add_to_log call with…

… an event

mod/assign/classes/event/submission_viewed.php

@@ -0,0 +1,82 @@
+<?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/>.
+
+/**
+ * The mod_assign submission viewed event.
+ *
+ * @property-read array $other {
+ *      Extra information about the event.
+ *
+ *      - int assignid: the id of the assignment.
+ * }
+ *
+ * @package    mod_assign
+ * @since      Moodle 2.7
+ * @copyright  2014 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_assign\event;
+
+defined('MOODLE_INTERNAL') || die();
+
+class submission_viewed extends base {
+
+    /**
+     * Init method.
+     */
+    protected function init() {
+        $this->data['objecttable'] = 'assign_submission';
+        $this->data['crud'] = 'r';
+        $this->data['edulevel'] = self::LEVEL_PARTICIPATING;
+    }
+
+    /**
+     * Returns localised general event name.
+     *
+     * @return string
+     */
+    public static function get_name() {
+        return get_string('eventsubmissionviewed', 'mod_assign');
+    }
+
+    /**
+     * Returns description of what happened.
+     *
+     * @return string
+     */
+    public function get_description() {
+        return "The user with the id {$this->userid} viewed the submission for the user with the id {$this->relateduserid} for the
+            assignment with the id {$this->other['assignid']}.";
+    }
+
+    /**
+     * Custom validation.
+     *
+     * @throws \coding_exception
+     */
+    protected function validate_data() {
+        parent::validate_data();
+
+        if (!isset($this->relateduserid)) {
+            throw new \coding_exception('The \'relateduserid\' must be set.');
+        }
+
+        if (!isset($this->other['assignid'])) {
+            throw new \coding_exception('The \'assignid\' must be set in other.');
+        }
+    }
+}

mod/assign/lang/en/assign.php

@@ -153,6 +153,7 @@
 $string['eventsubmissionstatusupdated'] = 'The status of the submission has been updated.';
 $string['eventsubmissionunlocked'] = 'The submissions have been unlocked for a user.';
 $string['eventsubmissionupdated'] = 'Submission updated.';
+$string['eventsubmissionviewed'] = 'Submission viewed.';
 $string['eventworkflowstateupdated'] = 'The state of the workflow has been updated.';
 $string['extensionduedate'] = 'Extension due date';
 $string['extensionnotafterduedate'] = 'Extension date must be after the due date';

mod/assign/locallib.php

@@ -2150,8 +2150,6 @@ public function get_submission_group($userid) {
      * @return string
      */
     protected function view_plugin_content($pluginsubtype) {
-        global $USER;
-
         $o = '';
 
         $submissionid = optional_param('sid', 0, PARAM_INT);
@@ -2179,8 +2177,18 @@ protected function view_plugin_content($pluginsubtype) {
                                                               $this->get_return_action(),
                                                               $this->get_return_params()));
 
-            $logmessage = get_string('viewsubmissionforuser', 'assign', $item->userid);
-            $this->add_to_log('view submission', $logmessage);
+            // Trigger event for viewing a submission.
+            $logmessage = new lang_string('viewsubmissionforuser', 'assign', $item->userid);
+            $event = \mod_assign\event\submission_viewed::create(array(
+                'objectid' => $item->id,
+                'relateduserid' => $item->userid,
+                'context' => $this->get_context(),
+                'other' => array(
+                    'assignid' => $this->get_instance()->id
+                )
+            ));
+            $event->set_legacy_logdata('view submission', $logmessage);
+            $event->trigger();
         } else {
             $plugin = $this->get_feedback_plugin_by_type($plugintype);
             if ($gradeid <= 0) {
@@ -2207,6 +2215,7 @@ protected function view_plugin_content($pluginsubtype) {
         $o .= $this->view_return_links();
 
         $o .= $this->view_footer();
+
         return $o;
     }
 
@@ -2347,7 +2356,12 @@ protected function view_quickgrading_result($message) {
      * @return string
      */
     protected function view_footer() {
-        return $this->get_renderer()->render_footer();
+        // When viewing the footer during PHPUNIT tests a set_state error is thrown.
+        if (!PHPUNIT_TEST) {
+            return $this->get_renderer()->render_footer();
+        }
+
+        return '';
     }
 
     /**

mod/assign/tests/events_test.php

@@ -471,4 +471,46 @@ public function test_submission_graded() {
         $this->assertEventLegacyLogData($expected, $event);
         $sink->close();
     }
+
+    /**
+     * Test the submission_viewed event.
+     */
+    public function test_submission_viewed() {
+        global $PAGE;
+
+        $this->setUser($this->editingteachers[0]);
+
+        $assign = $this->create_instance();
+        $submission = $assign->get_user_submission($this->students[0]->id, true);
+
+        // We need to set the URL in order to view the submission.
+        $PAGE->set_url('/a_url');
+        // A hack - these variables are used by the view_plugin_content function to
+        // determine what we actually want to view - would usually be set in URL.
+        global $_POST;
+        $_POST['plugin'] = 'comments';
+        $_POST['sid'] = $submission->id;
+
+        // Trigger and capture the event.
+        $sink = $this->redirectEvents();
+        $assign->view('viewpluginassignsubmission');
+        $events = $sink->get_events();
+        $this->assertCount(1, $events);
+        $event = reset($events);
+
+        // Check that the event contains the expected values.
+        $this->assertInstanceOf('\mod_assign\event\submission_viewed', $event);
+        $this->assertEquals($assign->get_context(), $event->get_context());
+        $this->assertEquals($submission->id, $event->objectid);
+        $expected = array(
+            $assign->get_course()->id,
+            'assign',
+            'view submission',
+            'view.php?id=' . $assign->get_course_module()->id,
+            get_string('viewsubmissionforuser', 'assign', $this->students[0]->id),
+            $assign->get_course_module()->id
+        );
+        $this->assertEventLegacyLogData($expected, $event);
+        $this->assertEventContextNotUsed($event);
+    }
 }