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<?php
/*
Copyright 2001 - 2006 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
as published by the Free Software Foundation; either version 2
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 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.
*/
/**
* Genre Class
* This class takes care of the genre object
*/
class Genre {
/* Variables */
var $id;
var $name;
/**
* Constructor
* @package Genre
* @catagory Constructor
*/
function Genre($genre_id=0) {
if ($genre_id > 0) {
$this->id = intval($genre_id);
$info = $this->_get_info();
$this->name = $info['name'];
}
} // Genre
/**
* Private Get Info
* This simply returns the information for this genre
* @package Genre
* @catagory Class
*/
function _get_info() {
$sql = "SELECT * FROM " . tbl_name('genre') . " WHERE id='$this->id'";
$db_results = mysql_query($sql, dbh());
$results = mysql_fetch_assoc($db_results);
return $results;
} // _get_info()
/**
* format_genre
* this reformats the genre object so it's all purdy and creates a link var
* @package Genre
* @catagory Class
*/
function format_genre() {
$this->link = "<a href=\"" . conf('web_path') . "/genre.php?action=show_genre&genre_id=" . $this->id . "\">" . $this->name . "</a>";
$this->play_link = conf('web_path') . "/song.php?action=genre&genre=" . $this->id;
$this->random_link = conf('web_path') . "/song.php?action=random_genre&genre=" . $this->id;
} // format_genre
/**
* get_song_count
* This returns the number of songs in said genre
* @package Genre
* @catagory Class
*/
function get_song_count() {
$sql = "SELECT count(song.id) FROM song WHERE genre='" . $this->id . "'";
$db_results = mysql_query($sql, dbh());
$total_items = mysql_fetch_array($db_results);
return $total_items[0];
} // get_song_count
/**
* get_album_count
* Returns the number of albums that contain a song of this genre
* @package Genre
* @catagory Class
*/
function get_album_count() {
$sql = "SELECT COUNT(DISTINCT(song.album)) FROM song WHERE genre='" . $this->id . "'";
$db_results = mysql_query($sql, dbh());
$total_items = mysql_fetch_array($db_results);
return $total_items[0];
} // get_album_count
/**
* get_artist_count
* Returns the number of artists who have at least one song in this genre
* @package Genre
* @catagory Class
*/
function get_artist_count() {
$sql = "SELECT COUNT(DISTINCT(song.artist)) FROM song WHERE genre='" . $this->id . "'";
$db_results = mysql_query($sql, dbh());
$total_items = mysql_fetch_array($db_results);
return $total_items[0];
} // get_artist_count
/**
* get_songs
* This gets all of the songs in this genre and returns an array of song objects
* @package Genre
* @catagory Class
*/
function get_songs() {
$sql = "SELECT song.id FROM song WHERE genre='" . $this->id . "'";
$db_results = mysql_query($sql, dbh());
$results = array();
while ($r = mysql_fetch_assoc($db_results)) {
$results[] = $r['id'];
}
return $results;
} // get_songs
/**
* get_random_songs
* This is the same as get_songs except it returns a random assortment of songs from this
* genre
* @package Genre
* @catagory Class
*/
function get_random_songs() {
$limit = rand(1,$this->get_song_count());
$sql = "SELECT song.id FROM song WHERE genre='" . $this->id . "' ORDER BY RAND() LIMIT $limit";
$db_results = mysql_query($sql, dbh());
$results = array();
while ($r = mysql_fetch_assoc($db_results)) {
$results[] = $r['id'];
}
return $results;
} // get_random_songs
/**
* get_albums
* This gets all of the albums that have at least one song in this genre
* @package Genre
* @catagory Class
*/
function get_albums() {
$sql = "SELECT DISTINCT(song.album) FROM song WHERE genre='" . $this->id . "'";
$db_results = mysql_query($sql,dbh());
$results = array();
while ($r = mysql_fetch_assoc($db_results)) {
$album = new Album($r['album']);
$album->format_album();
$results[] = $album;
}
return $results;
} // get_albums
/**
* get_artists
* This gets all of the artists who have at least one song in this genre
* @package Genre
* @catagory Class
*/
function get_artists() {
$sql = "SELECT DISTINCT(song.artist) FROM song WHERE genre='" . $this->id . "'";
$db_results = mysql_query($sql, dbh());
$results = array();
while ($r = mysql_fetch_assoc($db_results)) {
$results[] = get_artist_info($r['artist']);
}
return $results;
} // get_artists
/**
* get_genres
* this returns an array of genres based on a sql statement that's passed
* @package Genre
* @catagory Class
*/
function get_genres($sql) {
$db_results = mysql_query($sql, dbh());
$results = array();
while ($r = mysql_fetch_assoc($db_results)) {
$results[] = new Genre($r['id']);
}
return $results;
} // get_genres
/**
* get_sql_from_match
* This is specificly for browsing it takes the match and returns the sql call that we want to use
* @package Genre
* @catagory Class
*/
function get_sql_from_match($match) {
switch ($match) {
case 'Show_All':
case 'show_all':
$sql = "SELECT id FROM genre";
break;
case 'Browse':
case 'show_genres':
$sql = "SELECT id FROM genre";
break;
default:
$sql = "SELECT id FROM genre WHERE name LIKE '" . sql_escape($match) . "%'";
break;
} // end switch on match
return $sql;
} // get_sql_from_match
/**
* show_match_list
* This shows the Alphabet list and any other 'things' that genre by need at the top of every browse
* page
* @package Genre
* @catagory Class
*/
function show_match_list($match) {
require (conf('prefix') . '/templates/show_box_top.inc.php');
show_alphabet_list('genre','browse.php',$match,'genre');
/* Detect if it's Browse, and if so don't fill it in */
if ($match == 'Browse') { $match = ''; }
show_alphabet_form($match,_('Show Genres starting with'),"browse.php?action=genre&match=$match");
require (conf('prefix') . '/templates/show_box_bottom.inc.php');
} // show_match_list
} //end of genre class
?>
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