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<?php
/* vim:set tabstop=8 softtabstop=8 shiftwidth=8 noexpandtab: */
/*
* Stats Class
*
* PHP version 5
*
* LICENSE: GNU General Public License, version 2 (GPLv2)
* Copyright (c) 2001 - 2011 Ampache.org All Rights Reserved
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License v2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* @category Stats
* @package Ampache
* @author Karl Vollmer <vollmer@ampache.org>
* @copyright 2001 - 2011 Ampache.org
* @license http://opensource.org/licenses/gpl-2.0 GPLv2
* @version PHP 5.2
* @link http://www.ampache.org/
* @since File available since Release 1.0
*/
/**
* Stats Class
*
* this class handles the object_count
* Stuff, before this was done in the user class
* but that's not good, all done through here.
*
* @category Stats
* @package Ampache
* @author Karl Vollmer <vollmer@ampache.org>
* @copyright 2001 - 2011 Ampache.org
* @license http://opensource.org/licenses/gpl-2.0 GPLv2
* @version Release: 3.6
* @link http://www.ampache.org/
* @since Class available since Release 1.0
*/
class Stats {
/* Base vars */
var $id;
var $object_type;
var $object_id;
var $date;
var $user;
/**
* Constructor
* This doesn't do anything currently
*/
public function __construct() {
return true;
} // Constructor
/**
* insert
* This inserts a new record for the specified object
* with the specified information, amazing!
*/
public static function insert($type,$oid,$user) {
$type = self::validate_type($type);
$oid = Dba::escape($oid);
$user = Dba::escape($user);
$date = time();
$sql = "INSERT INTO `object_count` (`object_type`,`object_id`,`date`,`user`) " .
" VALUES ('$type','$oid','$date','$user')";
$db_results = Dba::write($sql);
if (!$db_results) {
debug_event('statistics','Unabled to insert statistics:' . $sql,'3');
}
} // insert
/**
* get_last_song
* This returns the full data for the last song that was played, including when it
* was played, this is used by, among other things, the LastFM plugin to figure out
* if we should re-submit or if this is a duplicate / if it's too soon. This takes an
* optional user_id because when streaming we don't have $GLOBALS()
*/
public static function get_last_song($user_id='') {
$user_id = $user_id ? $user_id : $GLOBALS['user']->id;
$user_id = Dba::escape($user_id);
$sql = "SELECT * FROM `object_count` WHERE `user`='$user_id' AND `object_type`='song' ORDER BY `date` DESC LIMIT 1";
$db_results = Dba::read($sql);
$results = Dba::fetch_assoc($db_results);
return $results;
} // get_last_song
/**
* get_object_history
* This returns the objects that have happened for $user_id sometime after $time
* used primarly by the democratic cooldown code
*/
public static function get_object_history($user_id='',$time) {
$user_id = $user_id ? $user_id : $GLOBALS['user']->id;
$user_id = Dba::escape($user_id);
$time = Dba::escape($time);
$sql = "SELECT * FROM `object_count` WHERE `user`='$user_id' AND `object_type`='song' AND `date`>='$time' " .
"ORDER BY `date` DESC";
$db_results = Dba::read($sql);
$results = array();
while ($row = Dba::fetch_assoc($db_results)) {
$results[] = $row['object_id'];
}
return $results;
} // get_object_history
/**
* get_top
* This returns the top X for type Y from the
* last conf('stats_threshold') days
*/
public static function get_top($type,$count='',$threshold = '') {
/* If they don't pass one, then use the preference */
if (!$threshold) {
$threshold = Config::get('stats_threshold');
}
if (!$count) {
$count = Config::get('popular_threshold');
}
$count = intval($count);
$type = self::validate_type($type);
$date = time() - (86400*$threshold);
/* Select Top objects counting by # of rows */
$sql = "SELECT object_id,COUNT(id) AS `count` FROM object_count" .
" WHERE object_type='$type' AND date >= '$date'" .
" GROUP BY object_id ORDER BY `count` DESC LIMIT $count";
$db_results = Dba::read($sql);
$results = array();
while ($row = Dba::fetch_assoc($db_results)) {
$results[] = $row['object_id'];
}
return $results;
} // get_top
/**
* get_user
* This gets all stats for atype based on user with thresholds and all
* If full is passed, doesn't limit based on date
*/
public static function get_user($count,$type,$user,$full='') {
$count = intval($count);
$type = self::validate_type($type);
$user = Dba::escape($user);
/* If full then don't limit on date */
if ($full) {
$date = '0';
}
else {
$date = time() - (86400*Config::get('stats_threshold'));
}
/* Select Objects based on user */
//FIXME:: Requires table scan, look at improving
$sql = "SELECT object_id,COUNT(id) AS `count` FROM object_count" .
" WHERE object_type='$type' AND date >= '$date' AND user = '$user'" .
" GROUP BY object_id ORDER BY `count` DESC LIMIT $count";
$db_results = Dba::read($sql);
$results = array();
while ($r = Dba::fetch_assoc($db_results)) {
$results[] = $r;
}
return $results;
} // get_user
/**
* validate_type
* This function takes a type and returns only those
* which are allowed, ensures good data gets put into the db
*/
public static function validate_type($type) {
switch ($type) {
case 'artist':
case 'album':
case 'genre':
case 'song':
case 'video':
return $type;
default:
return 'song';
break;
} // end switch
} // validate_type
/**
* get_newest
* This returns an array of the newest artists/albums/whatever
* in this ampache instance
*/
public static function get_newest($type,$limit='') {
if (!$limit) { $limit = Config::get('popular_threshold'); }
$type = self::validate_type($type);
$object_name = ucfirst($type);
$sql = "SELECT DISTINCT(`$type`), MIN(`addition_time`) AS `real_atime` FROM `song` GROUP BY `$type` ORDER BY `real_atime` DESC " .
"LIMIT $limit";
$db_results = Dba::read($sql);
$items = array();
while ($row = Dba::fetch_row($db_results)) {
$items[] = $row['0'];
} // end while results
return $items;
} // get_newest
} // Stats class
?>
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