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Merge branch 'devel' of dev.sourcefabric.org:airtime into devel

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James 2012-09-13 17:05:56 -04:00
commit d2f0b10552
6 changed files with 112 additions and 24 deletions
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61
airtime_mvc/application/models/Schedule.php
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@ -61,11 +61,13 @@ SQL;
}
/**
* Queries the database for the set of schedules one hour before and after the given time.
* If a show starts and ends within that time that is considered the current show. Then the
* scheduled item before it is the previous show, and the scheduled item after it is the next
* show. This way the dashboard getCurrentPlaylist is very fast. But if any one of the three
* show types are not found through this mechanism a call is made to the old way of querying
* Queries the database for the set of schedules one hour before
* and after the given time. If a show starts and ends within that
* time that is considered the current show. Then the scheduled item
* before it is the previous show, and the scheduled item after it
* is the next show. This way the dashboard getCurrentPlaylist is
* very fast. But if any one of the three show types are not found
* through this mechanism a call is made to the old way of querying
* the database to find the track info.
**/
public static function GetPrevCurrentNext($p_previousShowID, $p_currentShowID, $p_nextShowID, $p_timeNow)
@ -83,10 +85,16 @@ SQL;
LEFT JOIN cc_show_instances si ON st.instance_id = si.id";
$streamColumns = "ws.name AS artist_name, wm.liquidsoap_data AS track_title, ";
$streamJoin = "FROM cc_schedule AS st JOIN cc_webstream ws ON st.stream_id = ws.id
LEFT JOIN cc_show_instances AS si ON st.instance_id = si.id
LEFT JOIN cc_subjs AS sub on sub.id = ws.creator_id
LEFT JOIN (SELECT * FROM cc_webstream_metadata ORDER BY start_time DESC LIMIT 1) AS wm on st.id = wm.instance_id";
$streamJoin = <<<SQL
FROM cc_schedule AS st
JOIN cc_webstream ws ON st.stream_id = ws.id
LEFT JOIN cc_show_instances AS si ON st.instance_id = si.id
LEFT JOIN cc_subjs AS sub ON sub.id = ws.creator_id
LEFT JOIN
(SELECT *
FROM cc_webstream_metadata
ORDER BY start_time DESC LIMIT 1) AS wm ON st.id = wm.instance_id
SQL;
$predicateArr = array();
$paramMap = array();
@ -118,8 +126,8 @@ SQL;
$numberOfRows = count($rows);
$results['previous'] = null;
$results['current'] = null;
$results['next'] = null;
$results['current'] = null;
$results['next'] = null;
$timeNowAsMillis = strtotime($p_timeNow);
for ($i = 0; $i < $numberOfRows; ++$i) {
@ -478,8 +486,9 @@ SQL;
}
/**
* Compute the difference between two times in the format "HH:MM:SS.mmmmmm".
* Note: currently only supports calculating millisec differences.
* Compute the difference between two times in the format .
* "HH:MM:SS.mmmmmm" Note: currently only supports calculating .
* millisec differences .
*
* @param string $p_time1
* @param string $p_time2
@ -789,6 +798,30 @@ SQL;
}
}
/**
* Purpose of this function is to iterate through the entire
* schedule array that was just built and fix the data up a bit. For
* example, if we have two consecutive webstreams, we don't need the
* first webstream to shutdown the output, when the second one will
* just switch it back on. Preventing this behaviour stops hiccups
* in output sound.
*/
private static function filterData(&$data)
{
$previous_key = null;
$previous_val = null;
foreach ($data as $k => $v) {
if ($v["type"] == "stream_buffer_start"
&& !is_null($previous_val)
&& $previous_val["type"] == "stream_output_end") {
unset($data[$previous_key]);
}
$previous_key = $k;
$previous_val = $v;
}
}
public static function getSchedule($p_fromDateTime = null, $p_toDateTime = null)
{
list($range_start, $range_end) = self::getRangeStartAndEnd($p_fromDateTime, $p_toDateTime);
@ -799,6 +832,8 @@ SQL;
self::createInputHarborKickTimes($data, $range_start, $range_end);
self::createScheduledEvents($data, $range_start, $range_end);
self::filterData($data["media"]);
return $data;
}