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authorKarl 'vollmerk' Vollmer <vollmer@ampache.org>2007-05-13 00:32:57 +0000
committerKarl 'vollmerk' Vollmer <vollmer@ampache.org>2007-05-13 00:32:57 +0000
commit6eac7541290086509cf1531a48ab2734ac48081a (patch)
treea4e1350fdcf765fb8a9d85ff0c513a296fdec946 /lib/class/tmp_playlist.class.php
parent2939f419e15589ab9fb73c6fd197e577238c6677 (diff)
downloadampache-6eac7541290086509cf1531a48ab2734ac48081a.tar.gz
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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.php463
1 files changed, 0 insertions, 463 deletions
diff --git a/lib/class/tmp_playlist.class.php b/lib/class/tmp_playlist.class.php
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-<?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) .
- '&amp;sid=' . scrub_out(session_id()) . '&amp;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