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SAAS-794 Schedule/get-current-playlist can take too long to respond

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Replaced GetPrevCurrentNext function with new one that is much simpler
and less taxing on the database and web server.
This commit is contained in:
drigato 2015-05-20 16:10:31 -04:00
parent 3d8cd8e927
commit 537fd2f148
1 changed files with 99 additions and 1 deletions
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100
airtime_mvc/application/models/Schedule.php
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@ -116,7 +116,8 @@ SQL;
$previousShowID = count($shows['previousShow'])>0?$shows['previousShow'][0]['instance_id']:null;
$currentShowID = count($shows['currentShow'])>0?$shows['currentShow'][0]['instance_id']:null;
$nextShowID = count($shows['nextShow'])>0?$shows['nextShow'][0]['instance_id']:null;
$results = self::GetPrevCurrentNext($previousShowID, $currentShowID, $nextShowID, $utcNow);
//$results = self::GetPrevCurrentNext($previousShowID, $currentShowID, $nextShowID, $utcNow);
$results = Application_Model_Schedule::getPVC($utcNow);
$range = array(
"env" => APPLICATION_ENV,
@ -133,6 +134,103 @@ SQL;
return $range;
}
public static function getPVC($utcNow)
{
$timeZone = new DateTimeZone("UTC"); //This function works entirely in UTC.
assert(get_class($utcNow) === "DateTime");
assert($utcNow->getTimeZone() == $timeZone);
$results['previous'] = null;
$results['current'] = null;
$results['next'] = null;
$currentMedia = CcScheduleQuery::create()
->filterByDbStarts($utcNow, Criteria::LESS_EQUAL)
->filterByDbEnds($utcNow, Criteria::GREATER_EQUAL)
->findOne();
if (!isset($currentMedia)) {
return $results;
}
$currentMediaScheduleId = $currentMedia->getDbId();
$currentMediaFileId = $currentMedia->getDbFileId();
$currentMediaStreamId = $currentMedia->getDbStreamId();
if (isset($currentMediaFileId)) {
$currentMediaType = "track";
$currentFile = CcFilesQuery::create()
->filterByDbId($currentMediaFileId)
->findOne();
$currentMediaName = $currentFile->getDbArtistName() . " - " . $currentFile->getDbTrackTitle();
} else if (isset($currentMediaStreamId)) {
$currentMediaType = "webstream";
//TODO get name
} else {
$currentMediaType = null;
}
$results["current"] = array(
"starts" => $currentMedia->getDbStarts(),
"ends" => $currentMedia->getDbEnds(),
"type" => $currentMediaType,
"name" => $currentMediaName,
"media_item_played" => $currentMedia->getDbMediaItemPlayed(),
"record" => "0"
);
$previousMedia = CcScheduleQuery::create()
->filterByDbId($currentMediaScheduleId-1)
->orderByDbStarts()
->findOne();
$previousMediaFileId = $previousMedia->getDbFileId();
$previousMediaStreamId = $previousMedia->getDbStreamId();
if (isset($previousMediaFileId)) {
$previousMediaType = "track";
$previousFile = CcFilesQuery::create()
->filterByDbId($previousMediaFileId)
->findOne();
$previousMediaName = $previousFile->getDbArtistName() . " - " . $previousFile->getDbTrackTitle();
} else if (isset($previousMediaStreamId)) {
$previousMediaType = "webstream";
//TODO get name
} else {
$previousMediaType = null;
}
$results["previous"] = array(
"starts" => $previousMedia->getDbStarts(),
"ends" => $previousMedia->getDbEnds(),
"type" => $previousMediaType,
"name" => $previousMediaName
);
$nextMedia = CcScheduleQuery::create()
->filterByDbId($currentMediaScheduleId+1)
->orderByDbStarts()
->findOne();
$nextMediaFileId = $nextMedia->getDbFileId();
$nextMediaStreamId = $previousMedia->getDbStreamId();
if (isset($nextMediaFileId)) {
$nextMediaType = "track";
$nextFile = CcFilesQuery::create()
->filterByDbId($nextMediaFileId)
->findOne();
$nextMediaName = $nextFile->getDbArtistName() . " - " . $nextFile->getDbTrackTitle();
} else if (isset($nextMediaStreamId)) {
$nextMediaType = "webstream";
//TODO get name
} else {
$nextMediaType = null;
}
$results["next"] = array(
"starts" => $nextMedia->getDbStarts(),
"ends" => $nextMedia->getDbEnds(),
"type" => $nextMediaType,
"name" => $nextMediaName
);
return $results;
}
/**
* Queries the database for the set of schedules one hour before
* and after the given time. If a show starts and ends within that