From 48f42176cdc1d75f2b9cd7b5c6d0cc4ee9050ced Mon Sep 17 00:00:00 2001
From: Georg Ehrke <ownclouddev@georgswebsite.de>
Date: Wed, 22 Feb 2012 10:41:16 +0100
Subject: [PATCH] add is_editing_allowed function to OC_Calendar_Share

---
 apps/calendar/lib/share.php | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/apps/calendar/lib/share.php b/apps/calendar/lib/share.php
index 621ff8ce21..a5ca0a6e73 100644
--- a/apps/calendar/lib/share.php
+++ b/apps/calendar/lib/share.php
@@ -181,4 +181,21 @@ class OC_Calendar_Share{
 		}
 		return $active_where;
 	}
+	/*
+	 * @brief: checks the permission for editing an event
+	 * @param: (string) $share - userid (if $sharetype == user) / groupid (if $sharetype == group) / token (if $sharetype == public)
+	 * @param: (string) $id - id of the calendar / event
+	 * @param: (string) $type - use const self::CALENDAR or self::EVENT
+	 * @return (bool)
+	 */
+	public static function is_editing_allowed($share, $id, $type){
+		$group_where = self::group_sql(OC_Group::getUserGroups($share));
+		$permission_where = self::permission_sql('rw');
+		$stmt = OC_DB::prepare('SELECT * FROM *PREFIX*calendar_share_' . $type . ' WHERE ((share = ? AND sharetype = "user") ' . $group_where . ') ' . $permission_where . ')');
+		$result = $stmt->execute(array($share));
+		if($result->numRows() == 1){
+			return true;
+		}
+		return false;
+	}
 }
\ No newline at end of file