Current File : //data/www_bck/varak.net_bck/gnufm.varak.net/data/Statistic.php
<?php
/* GNU FM -- a free network service for sharing your music listening habits
Copyright (C) 2009 Free Software Foundation, Inc
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
require_once($install_path . '/database.php');
require_once($install_path . '/data/Server.php');
class Statistic {
/*
* returns an array counting appareances of a given field and his corresponding bargraph size
* @param string $table table name to be queried
* @param string $field field name to count
* @param integer $limit limit of the query
* @param string $constraint username or artistname depending on field
* @param integer $maxwidth bargraph max width (to express visually the number of plays)
* inaccurate @param integer $sizes quantity of possible sizes
* inaccurate @param float $max_font_size maximum font size (px, em, %, etc)
* @return array playstats
*/
static function generatePlayStats($table, $field, $limit = 40, $constraint = null, $maxwidth = 100) {
global $adodb;
if (!is_string($field) || !is_string($table) || !is_integer($limit)) {
return false;
}
$query = 'SELECT ' . $field . ', count(*) AS count FROM ' . $table;
$query .= (!is_null($constraint)) ? ' WHERE ' : null;
if ($field == 'track') {
$query .= (!is_null($constraint)) ? ' artist = ' . $adodb->qstr($constraint) : null;
} else {
$query .= (!is_null($constraint)) ? ' userid = ' . ($constraint) : null;
}
$query .= ' GROUP BY ' . $field . ' ORDER BY count DESC LIMIT ' . $limit;
$adodb->SetFetchMode(ADODB_FETCH_ASSOC);
try {
$res = $adodb->GetAll($query);
} catch (Exception $e) {
echo('ERROR' . $e->getMessage());
}
if (!$res) {
return false;
} else {
$max = $res[0]['count'];
foreach ($res as &$i){
$i['pageurl'] = Server::getArtistURL($i['artist']);
$i['size'] = round($i['count'] / $max * $maxwidth);
}
return $res;
}
}
static function generatePlayByDays($table, $limit = 100, $constraint = null, $maxwidth = 100) {
global $adodb;
global $connect_string;
if (!is_string($table) || !is_integer($limit)) {
return false;
}
/*
* todo: completly remove this dirty db type check.
*/
$query = 'SELECT COUNT(*) as count, DATE(TO_TIMESTAMP(time)) as date FROM ' . $table;
if (strpos($connect_string, 'mysql') === 0) {
$query = 'SELECT COUNT(*) as count,DATE(FROM_UNIXTIME(time)) as date FROM ' . $table;
}
$query .= (!is_null($constraint)) ? ' WHERE ' : null;
$query .= (!is_null($constraint)) ? ' userid = ' . ($constraint) : null;
// Ignore timestamps older than $limit*3 days, this speeds up the query a lot
// but will not return $limit data points if the user hasnt scrobbled at least once/day
// in $limit of those $limit*3 days
$query .= ' AND time > ' . (time() - (60 * 60 * 24 * ($limit * 3)));
$query .= ' GROUP BY date ORDER BY date DESC LIMIT ' . $limit;
$adodb->SetFetchMode(ADODB_FETCH_ASSOC);
try {
$res = $adodb->GetAll($query);
} catch (Exception $e) {
echo('ERROR' . $e->getMessage());
}
if (!$res) {
return false;
} else {
$max = 0;
foreach ($res as &$i){
if ($i['count'] > $max) {
$max = $i['count'];
}
}
return $res;
}
}
}
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