mirror of
https://github.com/Yetangitu/ampache
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f65076b93d
Even if we move away from php-gettext in the future, it's easy to write a quick T_() as a simple wrapper; it's not so easy to rewrite PHP to allow redeclaration of a function.
683 lines
19 KiB
PHP
683 lines
19 KiB
PHP
<?php
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/* vim:set tabstop=8 softtabstop=8 shiftwidth=8 noexpandtab: */
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/**
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* Democratic Class
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*
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*
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* LICENSE: GNU General Public License, version 2 (GPLv2)
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* Copyright (c) 2001 - 2011 Ampache.org All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License v2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* @package Ampache
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* @copyright 2001 - 2011 Ampache.org
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* @license http://opensource.org/licenses/gpl-2.0 GPLv2
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* @link http://www.ampache.org/
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*/
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/**
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* Democratic Class
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*
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* This class handles democratic play, which is a fancy
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* name for voting based playback. This extends the tmpplaylist
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*
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* @package Ampache
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* @copyright 2001 - 2011 Ampache.org
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* @license http://opensource.org/licenses/gpl-2.0 GPLv2
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* @link http://www.ampache.org/
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*/
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class Democratic extends tmpPlaylist {
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public $name;
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public $cooldown;
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public $level;
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public $user;
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public $primary;
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public $base_playlist;
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// Build local, buy local
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public $tmp_playlist;
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public $object_ids = array();
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public $vote_ids = array();
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public $user_votes = array();
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/**
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* constructor
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* We need a constructor for this class. It does it's own thing now
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*/
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public function __construct($id='') {
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if (!$id) { return false; }
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$info = $this->get_info($id);
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foreach ($info as $key=>$value) {
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$this->$key = $value;
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}
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} // constructor
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/**
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* build_vote_cache
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* This builds a vote cache of the objects we've got in the playlist
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*/
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public static function build_vote_cache($ids) {
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if (!is_array($ids) OR !count($ids)) { return false; }
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$idlist = '(' . implode(',',$ids) . ')';
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$sql = "SELECT `object_id`,COUNT(`user`) AS `count` FROM user_vote WHERE `object_id` IN $idlist GROUP BY `object_id`";
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$db_results = Dba::read($sql);
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while ($row = Dba::fetch_assoc($db_results)) {
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parent::add_to_cache('democratic_vote',$row['object_id'],$row['count']);
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}
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return true;
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} // build_vote_cache
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/**
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* is_enabled
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* This function just returns true / false if the current democraitc playlist
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* is currently enabled / configured
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*/
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public function is_enabled() {
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if ($this->tmp_playlist) { return true; }
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return false;
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} // is_enabled
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/**
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* set_parent
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* This returns the tmpPlaylist for this democratic play instance
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*/
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public function set_parent() {
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$demo_id = Dba::escape($this->id);
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$sql = "SELECT * FROM `tmp_playlist` WHERE `session`='$demo_id'";
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$db_results = Dba::read($sql);
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$row = Dba::fetch_assoc($db_results);
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$this->tmp_playlist = $row['id'];
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} // set_parent
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/**
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* set_user_preferences
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* This sets up a (or all) user(s) to use democratic play. This sets their play method
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* and playlist method (clear on send) If no user is passed it does it for everyone and
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* also locks down the ability to change to admins only
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*/
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public static function set_user_preferences($user=NULL) {
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//FIXME: Code in single user stuff
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$preference_id = Preference::id_from_name('play_type');
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Preference::update_level($preference_id,'75');
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Preference::update_all($preference_id,'democratic');
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$allow_demo = Preference::id_from_name('allow_democratic_playback');
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Preference::update_all($allow_demo,'1');
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$play_method = Preference::id_from_name('playlist_method');
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Preference::update_all($play_method,'clear');
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return true;
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} // set_user_preferences
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/**
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* format
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* This makes the objects variables all purrty so that they can be displayed
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*/
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public function format() {
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$this->f_cooldown = $this->cooldown . ' ' . T_('minutes');
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$this->f_primary = $this->primary ? T_('Primary') : '';
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switch ($this->level) {
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case '5':
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$this->f_level = T_('Guest');
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break;
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case '25':
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$this->f_level = T_('User');
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break;
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case '50':
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$this->f_level = T_('Content Manager');
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break;
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case '75':
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$this->f_level = T_('Catalog Manager');
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break;
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case '100':
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$this->f_level = T_('Admin');
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break;
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}
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} // format
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/**
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* get_playlists
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* This returns all of the current valid 'Democratic' Playlists
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* that have been created.
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*/
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public static function get_playlists() {
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$sql = "SELECT `id` FROM `democratic` ORDER BY `name`";
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$db_results = Dba::read($sql);
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$results = array();
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while ($row = Dba::fetch_assoc($db_results)) {
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$results[] = $row['id'];
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}
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return $results;
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} // get_playlists
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/**
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* get_current_playlist
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* This returns the curren users current playlist, or if specified
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* this current playlist of the user
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*/
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public static function get_current_playlist() {
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$democratic_id = Config::get('democratic_id');
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if (!$democratic_id) {
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$level = Dba::escape($GLOBALS['user']->access);
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$sql = "SELECT `id` FROM `democratic` WHERE `level` <= '$level' " .
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" ORDER BY `level` DESC,`primary` DESC";
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$db_results = Dba::read($sql);
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$row = Dba::fetch_assoc($db_results);
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$democratic_id = $row['id'];
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}
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$object = new Democratic($democratic_id);
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return $object;
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} // get_current_playlist
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/**
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* get_items
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* This returns an array of all object_ids currently in this tmpPlaylist. This
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* has gotten a little more complicated because of type, the values are an array
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* 0 being ID 1 being TYPE
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* FIXME: This is too complex, it makes my brain hurt
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* [VOTE COUNT]
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* [DATE OF NEWEST VOTE]
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* [ROW ID]
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* [OBJECT_ID]
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* [OBJECT_TYPE]
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*
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* Sorting does the following
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* sort largest VOTE COUNT to top
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* sort smallest DATE OF NEWEST VOTE]
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*/
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public function get_items() {
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$order = "ORDER BY `user_vote`.`date` ASC, `tmp_playlist_data`.`track` ASC";
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$vote_join = "INNER JOIN `user_vote` ON `user_vote`.`object_id`=`tmp_playlist_data`.`id`";
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/* Select all objects from this playlist */
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$sql = "SELECT `user_vote`.`object_id` AS `vote_id`,`user_vote`.`user`,`tmp_playlist_data`.`id`,`tmp_playlist_data`.`object_type`, `user_vote`.`date`, `tmp_playlist_data`.`object_id` " .
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"FROM `tmp_playlist_data` $vote_join " .
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"WHERE `tmp_playlist_data`.`tmp_playlist`='" . Dba::escape($this->tmp_playlist) . "' $order";
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$db_results = Dba::read($sql);
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/* Define the array */
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$items = array();
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$votes = array();
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$object_ids = array();
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// Itterate and build the sortable array
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while ($results = Dba::fetch_assoc($db_results)) {
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// Extra set of data for caching!
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$this->object_ids[] = $results['object_id'];
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$this->vote_ids[] = $results['vote_id'];
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// First build a variable that holds the number of votes for an object
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$name = 'vc_' . $results['object_id'];
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// Check if the vote is older then our current vote for this object
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if ($votes[$results['object_id']] < $results['date'] OR !isset($votes[$results['object_id']])) {
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$votes[$results['object_id']] = $results['date'];
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}
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// Append one to the vote
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${$name}++;
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$primary_key = ${$name};
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$secondary_key = $votes[$results['object_id']];
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$items[$primary_key][$secondary_key][$results['id']] = array('object_id'=>$results['object_id'],'object_type'=>$results['object_type'],'id'=>$results['id']);
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} // gather data
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// Sort highest voted stuff to the top
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krsort($items);
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$sorted_items = array();
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// re-collapse the array
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foreach ($items as $vote_count=>$date_array) {
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ksort($date_array);
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foreach ($date_array as $object_array) {
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foreach ($object_array as $key=>$sorted_array) {
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$sorted_items[$key] = $sorted_array;
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}
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}
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}
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return $sorted_items;
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} // get_items
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/**
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* play_url
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* This returns the special play URL for democratic play, only open to ADMINs
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*/
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public function play_url() {
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$link = Stream::get_base_url() . 'uid=' . scrub_out($GLOBALS['user']->id) . '&demo_id=' . scrub_out($this->id);
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return $link;
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} // play_url
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/**
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* get_next_object
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* This returns the next object in the tmp_playlist most of the time this
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* will just be the top entry, but if there is a base_playlist and no
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* items in the playlist then it returns a random entry from the base_playlist
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*/
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public function get_next_object($offset='') {
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$offset = $offset ? intval($offset) : '0';
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// We have to get all because of the pysco sorting
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$items = self::get_items();
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if (count($items) > $offset) {
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$array = array_slice($items,$offset,1);
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$item = array_shift($array);
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$results['object_id'] = $item['object_id'];
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}
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/* If nothing was found and this is a voting playlist then get from base_playlist */
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if (!$results['object_id']) {
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/* Check for a playlist */
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if ($this->base_playlist) {
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/* We need to pull a random one from the base_playlist */
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$base_playlist = new Playlist($this->base_playlist);
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$data = $base_playlist->get_random_items(1);
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$results['object_id'] = $data['0']['object_id'];
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}
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else {
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$sql = "SELECT `id` as `object_id` FROM `song` WHERE `enabled`='1' ORDER BY RAND() LIMIT 1";
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$db_results = Dba::read($sql);
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$results = Dba::fetch_assoc($db_results);
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}
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}
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return $results['object_id'];
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} // get_next_object
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/**
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* get_uid_from_object_id
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* This takes an object_id and an object type and returns the ID for the row
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*/
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public function get_uid_from_object_id($object_id,$object_type='') {
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$object_id = Dba::escape($object_id);
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$object_type = $object_type ? Dba::escape($object_type) : 'song';
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$tmp_id = Dba::escape($this->tmp_playlist);
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$sql = "SELECT `tmp_playlist_data`.`id` FROM `tmp_playlist_data` WHERE `object_type`='$object_type' AND " .
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"`tmp_playlist`='$tmp_id' AND `object_id`='$object_id'";
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$db_results = Dba::read($sql);
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$row = Dba::fetch_assoc($db_results);
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return $row['id'];
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} // get_uid_from_object_id
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/**
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* get_cool_songs
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* This returns all of the song_ids for songs that have happened within the last 'cooldown'
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* for this user.
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*/
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public function get_cool_songs() {
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// Convert cooldown time to a timestamp in the past
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$cool_time = time() - ($this->cooldown * 60);
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$song_ids = Stats::get_object_history($GLOBALS['user']->id,$cool_time);
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return $song_ids;
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} // get_cool_songs
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/**
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* vote
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* This function is called by users to vote on a system wide playlist
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* This adds the specified objects to the tmp_playlist and adds a 'vote'
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* by this user, naturally it checks to make sure that the user hasn't
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* already voted on any of these objects
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*/
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public function vote($items) {
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/* Itterate through the objects if no vote, add to playlist and vote */
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foreach ($items as $element) {
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$type = array_shift($element);
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$object_id = array_shift($element);
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if (!$this->has_vote($object_id,$type)) {
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$this->add_vote($object_id,$type);
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}
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} // end foreach
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} // vote
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/**
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* has_vote
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* This checks to see if the current user has already voted on this object
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*/
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public function has_vote($object_id,$type='') {
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$tmp_id = Dba::escape($this->tmp_playlist);
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$object_id = Dba::escape($object_id);
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$type = $type ? Dba::escape($type) : 'song';
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$user_id = Dba::escape($GLOBALS['user']->id);
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/* Query vote table */
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$sql = "SELECT tmp_playlist_data.object_id FROM `user_vote` " .
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"INNER JOIN tmp_playlist_data ON tmp_playlist_data.id=user_vote.object_id " .
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"WHERE user_vote.user='$user_id' AND tmp_playlist_data.object_type='$type' " .
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"AND tmp_playlist_data.object_id='$object_id' " .
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"AND tmp_playlist_data.tmp_playlist='$tmp_id'";
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$db_results = Dba::read($sql);
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/* If we find row, they've voted!! */
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if (Dba::num_rows($db_results)) {
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return true;
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}
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return false;
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} // has_vote
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/**
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* add_vote
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* This takes a object id and user and actually inserts the row
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*/
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public function add_vote($object_id,$object_type='') {
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$object_id = Dba::escape($object_id);
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$tmp_playlist = Dba::escape($this->tmp_playlist);
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$object_type = $object_type ? Dba::escape($object_type) : 'song';
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$media = new $object_type($object_id);
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$track = isset($media->track) ? "'" . intval($media->track) . "'" : "NULL";
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/* If it's on the playlist just vote */
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$sql = "SELECT `id` FROM `tmp_playlist_data` " .
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"WHERE `tmp_playlist_data`.`object_id`='$object_id' AND `tmp_playlist_data`.`tmp_playlist`='$tmp_playlist'";
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$db_results = Dba::write($sql);
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/* If it's not there, add it and pull ID */
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if (!$results = Dba::fetch_assoc($db_results)) {
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$sql = "INSERT INTO `tmp_playlist_data` (`tmp_playlist`,`object_id`,`object_type`,`track`) " .
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"VALUES ('$tmp_playlist','$object_id','$object_type',$track)";
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$db_results = Dba::write($sql);
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$results['id'] = Dba::insert_id();
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}
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/* Vote! */
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$time = time();
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$sql = "INSERT INTO user_vote (`user`,`object_id`,`date`) " .
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"VALUES ('" . Dba::escape($GLOBALS['user']->id) . "','" . $results['id'] . "','$time')";
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$db_results = Dba::write($sql);
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return true;
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} // add_vote
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/**
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* remove_vote
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* This is called to remove a vote by a user for an object, it uses the object_id
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* As that's what we'll have most the time, no need to check if they've got an existing
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* vote for this, just remove anything that is there
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*/
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public function remove_vote($row_id) {
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$object_id = Dba::escape($row_id);
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$user_id = Dba::escape($GLOBALS['user']->id);
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$sql = "DELETE FROM `user_vote` WHERE `object_id`='$object_id' AND `user`='$user_id'";
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$db_results = Dba::write($sql);
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/* Clean up anything that has no votes */
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self::prune_tracks();
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return true;
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} // remove_vote
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/**
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* delete_votes
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* This removes the votes for the specified object on the current playlist
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*/
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public function delete_votes($row_id) {
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$row_id = Dba::escape($row_id);
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$sql = "DELETE FROM `user_vote` WHERE `object_id`='$row_id'";
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$db_results = Dba::write($sql);
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$sql = "DELETE FROM `tmp_playlist_data` WHERE `id`='$row_id'";
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$db_results = Dba::write($sql);
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return true;
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} // delete_votes
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/**
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* delete_from_oid
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* This takes an OID and type and removes the object from the democratic playlist
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*/
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public function delete_from_oid($oid,$object_type) {
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$row_id = $this->get_uid_from_object_id($oid,$object_type);
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if ($row_id) {
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debug_event('Democratic','Removing Votes for ' . $oid . ' of type ' . $object_type,'5');
|
|
$this->delete_votes($row_id);
|
|
}
|
|
else { debug_event('Democratic','Unable to find Votes for ' . $oid . ' of type ' . $object_type,'3'); }
|
|
|
|
return true;
|
|
|
|
} // delete_from_oid
|
|
|
|
/**
|
|
* delete
|
|
* This deletes a democratic playlist
|
|
*/
|
|
public static function delete($democratic_id) {
|
|
|
|
$democratic_id = Dba::escape($democratic_id);
|
|
|
|
$sql = "DELETE FROM `democratic` WHERE `id`='$democratic_id'";
|
|
$db_results = Dba::write($sql);
|
|
|
|
$sql = "DELETE FROM `tmp_playlist` WHERE `session`='$democratic_id'";
|
|
$db_results = Dba::write($sql);
|
|
|
|
self::prune_tracks();
|
|
|
|
return true;
|
|
|
|
} // delete
|
|
|
|
/**
|
|
* update
|
|
* This updates an existing democratic playlist item. It takes a key'd array just like the create
|
|
*/
|
|
public function update($data) {
|
|
|
|
$name = Dba::escape($data['name']);
|
|
$base = Dba::escape($data['democratic']);
|
|
$cool = Dba::escape($data['cooldown']);
|
|
$id = Dba::escape($this->id);
|
|
|
|
$sql = "UPDATE `democratic` SET `name`='$name', `base_playlist`='$base',`cooldown`='$cool' WHERE `id`='$id'";
|
|
$db_results = Dba::write($sql);
|
|
|
|
return true;
|
|
|
|
} // update
|
|
|
|
/**
|
|
* create
|
|
* This is the democratic play create function it inserts this into the democratic table
|
|
*/
|
|
public static function create($data) {
|
|
|
|
// Clean up the input
|
|
$name = Dba::escape($data['name']);
|
|
$base = Dba::escape($data['democratic']);
|
|
$cool = Dba::escape($data['cooldown']);
|
|
$level = Dba::escape($data['level']);
|
|
$default = Dba::escape($data['make_default']);
|
|
$user = Dba::escape($GLOBALS['user']->id);
|
|
|
|
$sql = "INSERT INTO `democratic` (`name`,`base_playlist`,`cooldown`,`level`,`user`,`primary`) " .
|
|
"VALUES ('$name','$base','$cool','$level','$user','$default')";
|
|
$db_results = Dba::write($sql);
|
|
|
|
if ($db_results) {
|
|
$insert_id = Dba::insert_id();
|
|
parent::create(array(
|
|
'session_id' => $insert_id,
|
|
'type' => 'vote',
|
|
'object_type' => 'song'
|
|
));
|
|
}
|
|
|
|
return $db_results;
|
|
|
|
} // create
|
|
|
|
/**
|
|
* prune_tracks
|
|
* This replaces the normal prune tracks and correctly removes the votes
|
|
* as well
|
|
*/
|
|
public static function prune_tracks() {
|
|
|
|
// This deletes data without votes, if it's a voting democratic playlist
|
|
$sql = "DELETE FROM `tmp_playlist_data` USING `tmp_playlist_data` " .
|
|
"LEFT JOIN `user_vote` ON `tmp_playlist_data`.`id`=`user_vote`.`object_id` " .
|
|
"LEFT JOIN `tmp_playlist` ON `tmp_playlist`.`id`=`tmp_playlist_data`.`tmp_playlist` " .
|
|
"WHERE `user_vote`.`object_id` IS NULL AND `tmp_playlist`.`type` = 'vote'";
|
|
$db_results = Dba::write($sql);
|
|
|
|
return true;
|
|
|
|
} // prune_tracks
|
|
|
|
/**
|
|
* clear
|
|
* This is really just a wrapper function, it clears the entire playlist
|
|
* including all votes etc.
|
|
*/
|
|
public function clear() {
|
|
|
|
$tmp_id = Dba::escape($this->tmp_playlist);
|
|
|
|
/* 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'";
|
|
$db_results = Dba::write($sql);
|
|
|
|
// Prune!
|
|
self::prune_tracks();
|
|
|
|
// Clean the votes
|
|
self::clear_votes();
|
|
|
|
return true;
|
|
|
|
} // clear_playlist
|
|
|
|
/**
|
|
* clean_votes
|
|
* This removes in left over garbage in the votes table
|
|
*/
|
|
public function clear_votes() {
|
|
|
|
$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";
|
|
$db_results = Dba::write($sql);
|
|
|
|
return true;
|
|
|
|
} // clear_votes
|
|
|
|
/**
|
|
* get_vote
|
|
* This returns the current count for a specific song on this tmp_playlist
|
|
*/
|
|
public function get_vote($object_id) {
|
|
|
|
if (parent::is_cached('democratic_vote',$object_id)) {
|
|
return parent::get_from_cache('democratic_vote',$object_id);
|
|
}
|
|
|
|
$object_id = Dba::escape($object_id);
|
|
|
|
$sql = "SELECT COUNT(`user`) AS `count` FROM user_vote " .
|
|
"WHERE `object_id`='$object_id'";
|
|
$db_results = Dba::read($sql);
|
|
|
|
$results = Dba::fetch_assoc($db_results);
|
|
|
|
return $results['count'];
|
|
|
|
} // get_vote
|
|
|
|
/**
|
|
* get_voters
|
|
* This returns the users that voted for the specified object
|
|
* This is an array of user ids
|
|
*/
|
|
public function get_voters($object_id) {
|
|
|
|
return parent::get_from_cache('democratic_voters',$object_id);
|
|
|
|
} // get_voters
|
|
|
|
|
|
} // Democratic class
|
|
?>
|