From 2eaa622161720d95ac3f627b4adec97e3a22ac7c Mon Sep 17 00:00:00 2001
From: Valentin Popov <info@valentineus.link>
Date: Wed, 27 Dec 2017 19:51:34 +0400
Subject: Added external function display a list of events

---
 externallib.php | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/externallib.php b/externallib.php
index 8acd3af..aa807a7 100644
--- a/externallib.php
+++ b/externallib.php
@@ -227,6 +227,50 @@ class local_webhooks_external extends external_api {
         );
     }
 
+    /**
+     * Returns description of method parameters.
+     *
+     * @return external_function_parameters
+     * @since  Moodle 2.9 Options available
+     * @since  Moodle 2.2
+     */
+    public static function get_list_events_parameters() {
+        return new external_function_parameters(array());
+    }
+
+    /**
+     * Get a list of all system events.
+     *
+     * @return array
+     * @since  Moodle 2.9 Options available
+     * @since  Moodle 2.2
+     */
+    public static function get_list_events() {
+        $context = context_system::instance();
+        self::validate_context($context);
+
+        $result = array();
+        if ($eventlist = local_webhooks_get_list_events()) {
+            foreach ($eventlist as $item) {
+                $result[] = $item["eventname"];
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Returns description of method result value.
+     *
+     * @return external_description
+     * @since  Moodle 2.2
+     */
+    public static function get_list_events_returns() {
+        return new external_multiple_structure(
+            new external_value(PARAM_TEXT, "Event name.")
+        );
+    }
+
     /**
      * Returns description of method parameters.
      *
-- 
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