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author | Karl 'vollmerk' Vollmer <vollmer@ampache.org> | 2007-05-13 00:32:57 +0000 |
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committer | Karl 'vollmerk' Vollmer <vollmer@ampache.org> | 2007-05-13 00:32:57 +0000 |
commit | 6eac7541290086509cf1531a48ab2734ac48081a (patch) | |
tree | a4e1350fdcf765fb8a9d85ff0c513a296fdec946 /lib/class/tmp_playlist.class.php | |
parent | 2939f419e15589ab9fb73c6fd197e577238c6677 (diff) | |
download | ampache-6eac7541290086509cf1531a48ab2734ac48081a.tar.gz ampache-6eac7541290086509cf1531a48ab2734ac48081a.tar.bz2 ampache-6eac7541290086509cf1531a48ab2734ac48081a.zip |
added in the playlist bar, and the auto-loading of a tmp playlist per session
Diffstat (limited to 'lib/class/tmp_playlist.class.php')
-rw-r--r-- | lib/class/tmp_playlist.class.php | 463 |
1 files changed, 0 insertions, 463 deletions
diff --git a/lib/class/tmp_playlist.class.php b/lib/class/tmp_playlist.class.php deleted file mode 100644 index 30b66ecc..00000000 --- a/lib/class/tmp_playlist.class.php +++ /dev/null @@ -1,463 +0,0 @@ -<?php -/* - - Copyright (c) 2001 - 2007 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. - -*/ - -/** - * TempPlaylist Class - * This class handles the temporary playlists in ampache, it handles the - * tmp_playlist and tmp_playlist_data tables, and sneaks out at night to - * visit user_vote from time to time - */ -class tmpPlaylist { - - /* Variables from the Datbase */ - public $id; - public $session; - public $type; - public $object_type; - public $base_playlist; - - /* Generated Elements */ - public $items = array(); - - /** - * Constructor - * This takes a playlist_id as an optional argument and gathers the information - * if not playlist_id is passed returns false (or if it isn't found - */ - public function __construct($playlist_id='') { - - if (!$playlist_id) { return false; } - - $this->id = intval($playlist_id); - $info = $this->_get_info(); - - foreach ($info as $key=>$value) { - $this->$key = $value; - } - - return true; - - } // __construct - - /** - * _get_info - * This is an internal (private) function that gathers the information for this object from the - * playlist_id that was passed in. - */ - private function _get_info() { - - $sql = "SELECT * FROM `tmp_playlist` WHERE `id`='" . Dba::escape($this->id) . "'"; - $db_results = Dba::query($sql); - - $results = Dba::fetch_assoc($db_results); - - return $results; - - } // _get_info - - /** - * get_items - * This returns an array of all object_ids currently in this tmpPlaylist - */ - public function get_items() { - - $order = 'ORDER BY id ASC'; - - if ($this->type == 'vote') { - $order = "GROUP BY tmp_playlist_data.id ORDER BY `count` DESC, user_vote.date ASC"; - $vote_select = ", COUNT(user_vote.user) AS `count`"; - $vote_join = "INNER JOIN user_vote ON user_vote.object_id=tmp_playlist_data.id"; - } - - /* Select all objects from this playlist */ - $sql = "SELECT tmp_playlist_data.id, tmp_playlist_data.object_id $vote_select FROM tmp_playlist_data $vote_join " . - "WHERE tmp_playlist_data.tmp_playlist='" . Dba::escape($this->id) . "' $order"; - $db_results = Dba::query($sql); - - /* Define the array */ - $items = array(); - - while ($results = Dba::fetch_assoc($db_results)) { - $key = $results['id']; - $items[$key] = $results['object_id']; - } - - return $items; - - } // get_items - - /** - * get_next_object - * This returns the next object in the tmp_playlist most of the time this - * will just be the top entry, but if there is a base_playlist and no - * items in the playlist then it returns a random entry from the base_playlist - */ - public function get_next_object() { - - $tmp_id = Dba::escape($this->id); - $order = " ORDER BY tmp_playlist_data.id DESC"; - - /* Check for an item on the playlist, account for voting */ - if ($this->type == 'vote') { - /* Add conditions for voting */ - $vote_select = ", COUNT(user_vote.user) AS `count`"; - $order = " GROUP BY tmp_playlist_data.id ORDER BY `count` DESC, user_vote.date ASC"; - $vote_join = "INNER JOIN user_vote ON user_vote.object_id=tmp_playlist_data.id"; - } - - $sql = "SELECT tmp_playlist_data.object_id $vote_select FROM tmp_playlist_data $vote_join " . - "WHERE tmp_playlist_data.tmp_playlist = '$tmp_id' $order LIMIT 1"; - $db_results = Dba::query($sql); - - $results = Dba::fetch_assoc($db_results); - - /* If nothing was found and this is a voting playlist then get from base_playlist */ - if ($this->type == 'vote' AND !$results) { - - /* Check for a playlist */ - if ($this->base_playlist != '0') { - /* We need to pull a random one from the base_playlist */ - $base_playlist = new playlist($this->base_playlist); - $data = $base_playlist->get_random_songs(1); - $results['object_id'] = $data['0']; - } - else { - $sql = "SELECT id as `object_id` FROM song WHERE enabled='1' ORDER BY RAND() LIMIT 1"; - $db_results = Dba::query($sql); - $results = Dba::fetch_assoc($db_results); - } - } - - return $results['object_id']; - - } // get_next_object - - /** - * get_vote_url - * This returns the special play URL for democratic play, only open to ADMINs - */ - public function get_vote_url() { - - $link = Config::get('web_path') . '/play/index.php?tmp_id=' . scrub_out($this->id) . - '&sid=' . scrub_out(session_id()) . '&uid=' . scrub_out($GLOBALS['user']->id); - - return $link; - - } // get_vote_url - - /** - * create - * This function initializes a new tmpPlaylist it is assoicated with the current - * session rather then a user, as you could have same user multiple locations - */ - public static function create($sessid,$type,$object_type,$base_playlist) { - - $sessid = Dba::escape($sessid); - $type = Dba::escape($type); - $object_type = Dba::escape($object_type); - $base_playlist = Dba::escape($base_playlist); - - $sql = "INSERT INTO `tmp_playlist` (`session`,`type`,`object_type`,`base_playlist`) " . - " VALUES ('$sessid','$type','$object_type','$base_playlist')"; - $db_results = Dba::query($sql); - - $id = Dba::insert_id(); - - /* Prune dead tmp_playlists */ - self::prune_playlists(); - - /* Clean any other playlists assoicated with this session */ - self::delete($sessid,$id); - - return $id; - - } // create - - /** - * update_playlist - * This updates the base_playlist on this tmp_playlist - */ - public function update_playlist($playlist_id) { - - $playlist_id = Dba::escape($playlist_id); - $tmp_id = Dba::escape($this->id); - - $sql = "UPDATE `tmp_playlist` SET tmp_playlist.base_playlist='$playlist_id' WHERE `id`='$tmp_id'"; - $db_results = Dba::query($sql); - - return true; - - } // update_playlist - - /** - * delete - * This deletes any other tmp_playlists assoicated with this - * session - */ - public static function delete($sessid,$id) { - - $sessid = Dba::escape($sessid); - $id = Dba::escape($id); - - $sql = "DELETE FROM `tmp_playlist` WHERE `session`='$sessid' AND `id` != '$id'"; - $db_results = Dba::query($sql); - - /* Remove assoicated tracks */ - self::prune_tracks(); - - return true; - - } // delete - - /** - * prune_playlists - * This deletes and playlists that don't have an assoicated session - */ - public static function prune_playlists() { - - /* Just delete if no matching session row */ - $sql = "DELETE FROM `tmp_playlist` USING `tmp_playlist` " . - "LEFT JOIN session ON session.id=tmp_playlist.session " . - "WHERE session.id IS NULL AND tmp_playlist.session != '-1'"; - $db_results = Dba::query($sql); - - return true; - - } // prune_playlists - - /** - * prune_tracks - * This prunes tracks that don't have playlists or don't have votes - */ - public static function prune_tracks() { - - $sql = "DELETE FROM tmp_playlist_data USING tmp_playlist_data " . - "LEFT JOIN tmp_playlist ON tmp_playlist_data.tmp_playlist=tmp_playlist.id " . - "WHERE tmp_playlist.id IS NULL"; - $db_results = Dba::query($sql); - - $sql = "DELETE FROM tmp_playlist_data USING tmp_playlist_data " . - "LEFT JOIN user_vote ON tmp_playlist_data.id=user_vote.object_id " . - "WHERE user_vote.object_id IS NULL"; - $db_results = Dba::query($sql); - - return true; - - } // prune_tracks - - /** - * add_object - * This adds the object of $this->object_type to this tmp playlist - */ - public function add_object($object_id) { - - $object_id = Dba::escape($object_id); - $playlist_id = Dba::escape($this->id); - - $sql = "INSERT INTO `tmp_playlist_data` (`object_id`,`tmp_playlist`) " . - " VALUES ('$object_id','$playlist_id')"; - $db_results = Dba::query($sql); - - return true; - - } // add_object - - /** - * vote - * This function is called by users to vote on a system wide playlist - * This adds the specified objects to the tmp_playlist and adds a 'vote' - * by this user, naturally it checks to make sure that the user hasn't - * already voted on any of these objects - */ - public function vote($items) { - - /* Itterate through the objects if no vote, add to playlist and vote */ - foreach ($items as $object_id) { - if (!$this->has_vote($object_id)) { - $this->add_vote($object_id,$this->id); - } - } // end foreach - - } // vote - - /** - * add_vote - * This takes a object id and user and actually inserts the row - */ - public function add_vote($object_id,$tmp_playlist) { - - $object_id = Dba::escape($object_id); - $tmp_playlist = Dba::escape($tmp_playlist); - - /* If it's on the playlist just vote */ - $sql = "SELECT id FROM tmp_playlist_data " . - "WHERE tmp_playlist_data.object_id='$object_id'"; - $db_results = Dba::query($sql); - - /* If it's not there, add it and pull ID */ - if (!$results = Dba::fetch_assoc($db_results)) { - $sql = "INSERT INTO tmp_playlist_data (`tmp_playlist`,`object_id`) " . - "VALUES ('$tmp_playlist','$object_id')"; - $db_results = Dba::query($sql); - $results['id'] = Dba::insert_id(); - } - - /* Vote! */ - $time = time(); - $sql = "INSERT INTO user_vote (`user`,`object_id`,`date`) " . - "VALUES ('" . Dba::escape($GLOBALS['user']->id) . "','" . $results['id'] . "','$time')"; - $db_results = Dba::query($sql); - - return true; - - } // add_vote - - /** - * has_vote - * This checks to see if the current user has already voted on this object - */ - public function has_vote($object_id) { - - $tmp_id = Dba::escape($this->id); - - /* Query vote table */ - $sql = "SELECT tmp_playlist_data.id FROM `user_vote` " . - "INNER JOIN tmp_playlist_data ON tmp_playlist_data.id=user_vote.object_id " . - "WHERE user_vote.user='" . Dba::escape($GLOBALS['user']->id) . "' " . - "AND tmp_playlist_data.object_id='" . Dba::escape($object_id) . "' " . - "AND tmp_playlist_data.tmp_playlist='$tmp_id'"; - $db_results = Dba::query($sql); - - /* If we find row, they've voted!! */ - if (Dba::num_rows($db_results)) { - return true; - } - - return false; - - } // has_vote - - /** - * get_vote - * This returns the current count for a specific song on this tmp_playlist - */ - public function get_vote($object_id) { - - $object_id = Dba::escape($object_id); - - $sql = "SELECT COUNT(`user`) AS `count` FROM user_vote " . - " WHERE object_id='$object_id'"; - $db_results = Dba::query($sql); - - $results = Dba::fetch_assoc($db_results); - - return $results['count']; - - } // get_vote - - /** - * vote_active - * This checks to see if this playlist is a voting playlist - * and if it is active - */ - public function vote_active() { - - /* Going to do a little more here later */ - if ($this->type == 'vote') { return true; } - - return false; - - } // vote_active - - /** - * remove_vote - * This is called to remove a vote by a user for an object, it uses the object_id - * As that's what we'll have most the time, no need to check if they've got an existing - * vote for this, just remove anything that is there - */ - public function remove_vote($object_id) { - - $object_id = Dba::escape($object_id); - $user_id = Dba::escape($GLOBALS['user']->id); - - $sql = "DELETE FROM user_vote USING user_vote INNER JOIN tmp_playlist_data ON tmp_playlist_data.id=user_vote.object_id " . - "WHERE user='$user_id' AND tmp_playlist_data.object_id='$object_id' " . - "AND tmp_playlist_data.tmp_playlist='" . Dba::escape($this->id) . "'"; - $db_results = Dba::query($sql); - - /* Clean up anything that has no votes */ - self::prune_tracks(); - - return true; - - } // remove_vote - - /** - * delete_track - * This deletes a track and any assoicated votes, we only check for - * votes if it's vote playlist, id is a object_id - */ - public function delete_track($id) { - - $id = Dba::escape($id); - $tmp_id = Dba::escape($this->id); - - /* delete the track its self */ - $sql = "DELETE FROM tmp_playlist_data " . - " WHERE tmp_playlist='$tmp_id' AND object_id='$id'"; - $db_results = Dba::query($sql); - - /* If this is a voting playlit prune votes */ - if ($this->type == 'vote') { - $sql = "DELETE FROM user_vote USING user_vote " . - "LEFT JOIN tmp_playlist_data ON user_vote.object_id = tmp_playlist_data.id " . - "WHERE tmp_playlist_data.id IS NULL"; - $db_results = Dba::query($sql); - } - - return true; - - } // delete_track - - /** - * clear_playlist - * This is really just a wrapper function, it clears the entire playlist - * including all votes etc. - */ - public function clear_playlist() { - - $tmp_id = Dba::escape($this->id); - - /* Clear all votes then prune */ - $sql = "DELETE FROM user_vote USING user_vote " . - "LEFT JOIN tmp_playlist_data ON user_vote.object_id = tmp_playlist_data.id " . - "WHERE tmp_playlist_data.tmp_playlist='$tmp_id'"; - $db_results = Dba::query($sql); - - // Prune! - self::prune_tracks(); - - return true; - - } // clear_playlist - - -} // class tmpPlaylist |