MDL-40909 core_enrol: removed 'unenrol' add_to_log calls

Before each of these calls a call to unenrol_user() is made, which
triggers the event 'user_enrolment_deleted'. Nothing more is needed.

enrol/manual/manage.php

@@ -139,7 +139,6 @@ if ($canunenrol && optional_param('remove', false, PARAM_BOOL) && confirm_sesske
     if (!empty($userstounassign)) {
         foreach($userstounassign as $removeuser) {
             $enrol_manual->unenrol_user($instance, $removeuser->id);
-            add_to_log($course->id, 'course', 'unenrol', '../enrol/users.php?id='.$course->id, $course->id); //there should be userid somewhere!
         }
 
         $potentialuserselector->invalidate_selected_users();

enrol/manual/unenrolself.php

@@ -49,7 +49,7 @@ $PAGE->set_title($plugin->get_instance_name($instance));
 
 if ($confirm and confirm_sesskey()) {
     $plugin->unenrol_user($instance, $USER->id);
-    add_to_log($course->id, 'course', 'unenrol', '../enrol/users.php?id='.$course->id, $course->id); //TODO: there should be userid somewhere!
+
     redirect(new moodle_url('/index.php'));
 }
 

enrol/paypal/unenrolself.php

@@ -49,7 +49,7 @@ $PAGE->set_title($plugin->get_instance_name($instance));
 
 if ($confirm and confirm_sesskey()) {
     $plugin->unenrol_user($instance, $USER->id);
-    add_to_log($course->id, 'course', 'unenrol', '../enrol/users.php?id='.$course->id, $course->id); //there should be userid somewhere!
+
     redirect(new moodle_url('/index.php'));
 }
 

enrol/self/unenrolself.php

@@ -49,7 +49,7 @@ $PAGE->set_title($plugin->get_instance_name($instance));
 
 if ($confirm and confirm_sesskey()) {
     $plugin->unenrol_user($instance, $USER->id);
-    add_to_log($course->id, 'course', 'unenrol', '../enrol/users.php?id='.$course->id, $course->id); //TODO: there should be userid somewhere!
+
     redirect(new moodle_url('/index.php'));
 }
 

enrol/tests/enrollib_test.php

@@ -316,4 +316,45 @@ class core_enrollib_testcase extends advanced_testcase {
         $expectedlegacyeventdata->courseid = $course1->id;
         $this->assertEventLegacyData($expectedlegacyeventdata, $event);
     }
+
+    /**
+     * Test user_enrolment_deleted event.
+     */
+    public function test_user_enrolment_deleted_event() {
+        global $DB;
+
+        $this->resetAfterTest(true);
+
+        $manualplugin = enrol_get_plugin('manual');
+        $user = $this->getDataGenerator()->create_user();
+        $course = $this->getDataGenerator()->create_course();
+        $student = $DB->get_record('role', array('shortname' => 'student'));
+
+        $enrol = $DB->get_record('enrol', array('courseid' => $course->id, 'enrol' => 'manual'), '*', MUST_EXIST);
+
+        // Enrol user.
+        $manualplugin->enrol_user($enrol, $user->id, $student->id);
+
+        // Get the user enrolment information, used to validate legacy event data.
+        $dbuserenrolled = $DB->get_record('user_enrolments', array('userid' => $user->id));
+
+        // Unenrol user and capture event.
+        $sink = $this->redirectEvents();
+        $manualplugin->unenrol_user($enrol, $user->id);
+        $events = $sink->get_events();
+        $sink->close();
+        $event = array_pop($events);
+
+        // Validate the event.
+        $this->assertInstanceOf('\core\event\user_enrolment_deleted', $event);
+        $this->assertEquals(context_course::instance($course->id), $event->get_context());
+        $this->assertEquals('user_unenrolled', $event->get_legacy_eventname());
+        $expectedlegacyeventdata = $dbuserenrolled;
+        $expectedlegacyeventdata->enrol = $manualplugin->get_name();
+        $expectedlegacyeventdata->courseid = $course->id;
+        $expectedlegacyeventdata->lastenrol = true;
+        $this->assertEventLegacyData($expectedlegacyeventdata, $event);
+        $expected = array($course->id, 'course', 'unenrol', '../enrol/users.php?id=' . $course->id, $course->id);
+        $this->assertEventLegacyLogData($expected, $event);
+    }
 }

lib/classes/event/user_enrolment_deleted.php

@@ -95,6 +95,14 @@ class user_enrolment_deleted extends base {
         return (object)$this->other['userenrolment'];
     }
 
+    /**
+     * Return legacy data for add_to_log().
+     *
+     * @return array
+     */
+    protected function get_legacy_logdata() {
+        return array($this->courseid, 'course', 'unenrol', '../enrol/users.php?id=' . $this->courseid, $this->courseid);
+    }
 
     /**
      * Custom validation.