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CC-84: Smart Playlists

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- static playlist is done.
This commit is contained in:
James 2012-07-16 17:18:37 -04:00
parent 1bb97c8603
commit fc09baacd7
4 changed files with 114 additions and 19 deletions
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81
airtime_mvc/application/models/Playlist.php
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@ -848,6 +848,15 @@ class Application_Model_Playlist {
CcPlaylistQuery::create()->findPKs($p_ids)->delete();
}
/**
* Delete all files from playlist
* @param int $p_playlistId
*/
public static function deleteAllFilesFromPlaylist($p_playlistId)
{
CcPlaylistcontentsQuery::create()->findByDbPlaylistId($p_playlistId)->delete();
}
// smart playlist functions start
/**
@ -963,34 +972,80 @@ class Application_Model_Playlist {
$result = self::saveSmartPlaylistCriteria($p_criteria, $p_playlistId);
if ($result['result'] != 0) {
return $result;
}else{
//$data = self::organizeSmartPlyalistCriteria($p_criteria);
$list = self::getListofFilesMeetCriteria($p_playlist_id);
return array("result"=>0);
} else {
$info = self::getListofFilesMeetCriteria($p_playlistId);
$files = $info['files'];
$limit = $info['limit'];
// construct ids of track candidates
self::deleteAllFilesFromPlaylist($p_playlistId);
$playlist = new self($p_playlistId);
$insertList = array();
$totalTime = 0;
while ($totalTime < $limit['time'] && !empty($files)) {
$key = array_rand($files);
$insertList[$key] = $files[$key];
$totalTime += $files[$key];
unset($files[$key]);
if ( !is_null($limit['items']) && $limit['items'] == count($insertList)) {
break;
}
}
$playlist->addAudioClips(array_keys($insertList));
return array("result"=>0, "ids"=>array_keys($insertList));
}
}
// this function return list of propel object
private static function getListofFilesMeetCriteria($p_playlist_id)
private static function getListofFilesMeetCriteria($p_playlistId)
{
$c = new Criteria();
$c = new Criteria();
$c->add(CcPlaylistcriteriaPeer::PLAYLIST_ID, $p_playlistId);
$out = CcPlaylistcriteriaPeer::doSelect($c);
foreach ($p_data as $criteria) {
$spCriteria = self::$criteria2PeerMap[$criteria['sp_criteria_field']];
$spCriteriaModifier = $criteria['sp_criteria_modifier'];
$spCriteriaValue = $criteria['sp_criteria_value'];
$storedCrit = array();
foreach ($out as $crit) {
$criteria = $crit->getDbCriteria();
$modifier = $crit->getDbModifier();
$value = $crit->getDbValue();
$extra = $crit->getDbExtra();
if($criteria == "limit"){
$storedCrit["limit"] = array("value"=>$value, "modifier"=>$modifier);
}else{
$storedCrit["crit"][] = array("criteria"=>$criteria, "value"=>$value, "modifier"=>$modifier, "extra"=>$extra);
}
}
$ccFileCriteria = new Criteria();
foreach ($storedCrit["crit"] as $criteria) {
$spCriteria = self::$criteria2PeerMap[$criteria['criteria']];
$spCriteriaModifier = $criteria['modifier'];
$spCriteriaValue = $criteria['value'];
if ($spCriteriaModifier == "starts with") {
$spCriteriaValue = "$spCriteriaValue%";
} else if ($spCriteriaModifier == "ends with") {
$spCriteriaValue = "%$spCriteriaValue";
} else if ($spCriteriaModifier == "is in the range") {
$spCriteriaValue = "$spCriteria > '$spCriteriaValue' AND $spCriteria < '$criteria[sp_criteria_extra]'";
$spCriteriaValue = "$spCriteria > '$spCriteriaValue' AND $spCriteria < '$criteria[extra]'";
}
$spCriteriaModifier = self::$modifier2CriteriaMap[$spCriteriaModifier];
$c->add($spCriteria, $spCriteriaValue, $spCriteriaModifier);
$ccFileCriteria->add($spCriteria, $spCriteriaValue, $spCriteriaModifier);
}
// construct limit restriction
$limits = array();
if ($storedCrit['limit']['modifier'] == "items") {
$limits['time'] = 1440 * 60;
$limits['items'] = $storedCrit['limit']['value'];
} else {
$limits['time'] = $storedCrit['limit']['modifier'] == "hours" ? intval($storedCrit['limit']['value']) * 60 * 60 : intval($storedCrit['limit']['value'] * 60);
$limits['items'] = null;
}
try{
$out = CcFilesPeer::doSelect($c);
$out = CcFilesPeer::doSelect($ccFileCriteria);
$files = array();
foreach ($out as $file) {
$files[$file->getDbId()] = Application_Common_DateHelper::calculateLengthInSeconds($file->getDbLength());
}
return array("files"=>$files, "limit"=>$limits);
}catch(Exception $e){
//Logging::log($e);
}