Calendar: Implement rescan of Categories

apps/calendar/ajax/categories/rescan.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * Copyright (c) 2012 Thomas Tanghus <thomas@tanghus.net>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+require_once('../../../../lib/base.php');
+OC_JSON::checkLoggedIn();
+OC_JSON::checkAppEnabled('calendar');
+
+foreach ($_POST as $key=>$element) {
+	debug('_POST: '.$key.'=>'.print_r($element, true));
+}
+
+function bailOut($msg) {
+	OC_JSON::error(array('data' => array('message' => $msg)));
+	OC_Log::write('calendar','ajax/categories/rescan.php: '.$msg, OC_Log::DEBUG);
+	exit();
+}
+function debug($msg) {
+	OC_Log::write('calendar','ajax/categories/rescan.php: '.$msg, OC_Log::DEBUG);
+}
+
+$calendars = OC_Calendar_Calendar::allCalendars(OC_User::getUser());
+if(count($calendars) == 0) {
+	bailOut(OC_Calendar_App::$l10n->t('No calendars found.'));
+}
+$events = array();
+foreach($calendars as $calendar) {
+	$calendar_events = OC_Calendar_Object::all($calendar['id']);
+	$events = $events + $calendar_events;
+}
+if(count($events) == 0) {
+	bailOut(OC_Calendar_App::$l10n->t('No events found.'));
+}
+
+OC_Calendar_App::scanCategories($events);
+$categories = OC_Calendar_App::getCategoryOptions();
+
+OC_JSON::success(array('data' => array('categories'=>$categories)));

apps/calendar/lib/app.php

@@ -89,6 +89,33 @@ class OC_Calendar_App{
 		return $categories;
 	}
 
+	/**
+	 * scan events for categories.
+	 * @param $events VEVENTs to scan. null to check all events for the current user.
+	 */
+	public static function scanCategories($events = null) {
+		if (is_null($events)) {
+			$calendars = OC_Calendar_Calendar::allCalendars(OC_User::getUser());
+			if(count($calendars) > 0) {
+				$events = array();
+				foreach($calendars as $calendar) {
+					$calendar_events = OC_Calendar_Object::all($calendar['id']);
+					$events = $events + $calendar_events;
+				}
+			}
+		}
+		if(is_array($events) && count($events) > 0) {
+			$vcategories = self::getVCategories();
+			$vcategories->delete($vcategories->categories());
+			foreach($events as $event) {
+				$vobject = OC_VObject::parse($event['calendardata']);
+				if(!is_null($vobject)) {
+					$vcategories->loadFromVObject($vobject->VEVENT, true);
+				}
+			}
+		}
+	}
+
 	public static function getRepeatOptions(){
 		return OC_Calendar_Object::getRepeatOptions(self::$l10n);
 	}