[ticket/11744] Create null log class (primarily for unit test)

PHPBB3-11744

phpBB/phpbb/log/null.php

@@ -0,0 +1,125 @@
+<?php
+/**
+*
+* @package phpbb_log
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* Null logger
+*
+* @package phpbb_log
+*/
+class phpbb_log_null implements phpbb_log_interface
+{
+	/**
+	* This function returns the state of the log system.
+	*
+	* @param	string	$type	The log type we want to check. Empty to get
+	*							global log status.
+	*
+	* @return	bool	True if log for the type is enabled
+	*/
+	public function is_enabled($type = '')
+	{
+		return false;
+	}
+
+	/**
+	* Disable log
+	*
+	* This function allows disabling the log system or parts of it, for this
+	* page call. When add_log is called and the type is disabled,
+	* the log will not be added to the database.
+	*
+	* @param	mixed	$type	The log type we want to disable. Empty to
+	*						disable all logs. Can also be an array of types.
+	*
+	* @return	null
+	*/
+	public function disable($type = '')
+	{
+	}
+
+	/**
+	* Enable log
+	*
+	* This function allows re-enabling the log system.
+	*
+	* @param	mixed	$type	The log type we want to enable. Empty to
+	*						enable all logs. Can also be an array of types.
+	*
+	* @return	null
+	*/
+	public function enable($type = '')
+	{
+	}
+
+	/**
+	* Adds a log entry to the database
+	*
+	* @param	string	$mode				The mode defines which log_type is used and from which log the entry is retrieved
+	* @param	int		$user_id			User ID of the user
+	* @param	string	$log_ip				IP address of the user
+	* @param	string	$log_operation		Name of the operation
+	* @param	int		$log_time			Timestamp when the log entry was added, if empty time() will be used
+	* @param	array	$additional_data	More arguments can be added, depending on the log_type
+	*
+	* @return	int|bool		Returns the log_id, if the entry was added to the database, false otherwise.
+	*/
+	public function add($mode, $user_id, $log_ip, $log_operation, $log_time = false, $additional_data = array())
+	{
+		return false;
+	}
+
+	/**
+	* Grab the logs from the database
+	*
+	* @param	string	$mode			The mode defines which log_type is used and ifrom which log the entry is retrieved
+	* @param	bool	$count_logs		Shall we count all matching log entries?
+	* @param	int		$limit			Limit the number of entries that are returned
+	* @param	int		$offset			Offset when fetching the log entries, f.e. when paginating
+	* @param	mixed	$forum_id		Restrict the log entries to the given forum_id (can also be an array of forum_ids)
+	* @param	int		$topic_id		Restrict the log entries to the given topic_id
+	* @param	int		$user_id		Restrict the log entries to the given user_id
+	* @param	int		$log_time		Only get log entries newer than the given timestamp
+	* @param	string	$sort_by		SQL order option, e.g. 'l.log_time DESC'
+	* @param	string	$keywords		Will only return log entries that have the keywords in log_operation or log_data
+	*
+	* @return	array			The result array with the logs
+	*/
+	public function get_logs($mode, $count_logs = true, $limit = 0, $offset = 0, $forum_id = 0, $topic_id = 0, $user_id = 0, $log_time = 0, $sort_by = 'l.log_time DESC', $keywords = '')
+	{
+		return array();
+	}
+
+	/**
+	* Get total log count
+	*
+	* @return	int			Returns the number of matching logs from the last call to get_logs()
+	*/
+	public function get_log_count()
+	{
+		return 0;
+	}
+
+	/**
+	* Get offset of the last valid page
+	*
+	* @return	int			Returns the offset of the last valid page from the last call to get_logs()
+	*/
+	public function get_valid_offset()
+	{
+		return 0;
+	}
+}