Version 4.0.13.1

system/Content/ReadMarkers.php

@@ -0,0 +1,38 @@
+<?php
+/**
+ * @brief		Read/Unread Tracking Interface for Content Models
+ * @author		<a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
+ * @copyright	(c) 2001 - SVN_YYYY Invision Power Services, Inc.
+ * @license		http://www.invisionpower.com/legal/standards/
+ * @package		IPS Social Suite
+ * @since		8 Jul 2013
+ * @version		SVN_VERSION_NUMBER
+ */
+
+namespace IPS\Content;
+
+/* To prevent PHP errors (extending class does not exist) revealing path */
+if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
+{
+	header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
+	exit;
+}
+
+/**
+ * Read/Unread Tracking Interface for Content Models
+ *
+ * @note	Content classes will gain special functionality by implementing this interface
+ */
+interface ReadMarkers
+{
+	/**
+	 * The maximum number of IDs to store in core_item_markers.item_read_array
+	 *
+	 * As a JSON-encoded array of ID => Timestamp values, the storage required
+	 * is (14+l)n + 1 bytes, where l is the length in bytes of any given ID and n is the number of IDs.
+	 * We store the value in a MEDIUMTEXT field, so the maximum length is 16 megabytes. Assuming
+	 * l is always 5 (NB: but it isn't), this means this constant could be increased to a theoretic
+	 * maximum of 883,011.
+	 */
+	const STORAGE_CUTOFF = 100000;
+}