upgrade

main/inc/lib/hook/interfaces/base/HookPluginInterface.php

@@ -0,0 +1,29 @@
+<?php
+/* For licensing terms, see /license.txt */
+/**
+ * This file contains all Hook interfaces and their relation.
+ * They are used for Hook classes.
+ *
+ * @package chamilo.library.hook
+ */
+
+/**
+ * Interface HookPluginInterface
+ * This interface should be implemented by plugins to implements Hook Observer.
+ */
+interface HookPluginInterface
+{
+    /**
+     * This method will call the Hook management insertHook to add Hook observer from this plugin.
+     *
+     * @return int
+     */
+    public function installHook();
+
+    /**
+     * This method will call the Hook management deleteHook to disable Hook observer from this plugin.
+     *
+     * @return int
+     */
+    public function uninstallHook();
+}