CC-3404: Change "Now Playing" dashboard SQL query to take advantage of the "playout_status" field in the schedule table
- Updated the logic in GetPlayOrderRange now I get the previous, current and next shows and tracks to be played. - This information is then sent back to the caller. - if the previous track is null the previous show is sent back as an example of the algorithm.
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Daniel
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@ -23,7 +23,7 @@ class Logging {
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}
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public static function debug($p_msg){
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if (APPLICATION_ENV == "development"){
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if (defined('APPLICATION_ENV') && APPLICATION_ENV == "development"){
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$logger = self::getLogger();
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$logger->debug($p_msg);
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}
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@ -45,7 +45,6 @@ class Application_Model_Schedule {
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}
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}
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/**
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* Returns data related to the scheduled items.
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*
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@ -60,24 +59,91 @@ class Application_Model_Schedule {
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return array();
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}
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global $CC_CONFIG;
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$date = new Application_Model_DateHelper;
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$timeNow = $date->getTimestamp();
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$utcTimeNow = $date->getUtcTimestamp();
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$shows = Application_Model_Show::getPrevCurrentNext($utcTimeNow);
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$currentShowID = count($shows['currentShow'])>0?$shows['currentShow'][0]['id']:null;
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$results = Application_Model_Schedule::GetPrevCurrentNext($currentShowID, $utcTimeNow);
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$range = array("env"=>APPLICATION_ENV,
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"schedulerTime"=>$timeNow,
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"previous"=>Application_Model_Dashboard::GetPreviousItem($utcTimeNow),
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"current"=>Application_Model_Dashboard::GetCurrentItem($utcTimeNow),
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"next"=>Application_Model_Dashboard::GetNextItem($utcTimeNow),
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"currentShow"=>Application_Model_Show::GetCurrentShow($utcTimeNow),
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"nextShow"=>Application_Model_Show::GetNextShows($utcTimeNow, 1),
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"previous"=>isset($results['previous'])?$results['previous']:count($shows['previousShow'])>0?$shows['previousShow'][0]:null,
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"current"=>isset($results['current'])?$results['current']:null,
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"next"=> isset($results['next'])?$results['next']:count($shows['nextShow'])>0?$shows['nextShow'][0]:null,
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"currentShow"=>$shows['currentShow'],
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"nextShow"=>$shows['nextShow'],
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"timezone"=> date("T"),
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"timezoneOffset"=> date("Z"));
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return $range;
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}
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/**
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* Queries the database for the set of schedules one hour before and after the given time.
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* If a show starts and ends within that time that is considered the current show. Then the
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* scheduled item before it is the previous show, and the scheduled item after it is the next
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* show. This way the dashboard getCurrentPlaylist is very fast. But if any one of the three
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* show types are not found through this mechanism a call is made to the old way of querying
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* the database to find the track info.
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**/
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public static function GetPrevCurrentNext($currentShowID, $p_timeNow)
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{
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global $CC_CONFIG, $CC_DBC;
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if (!isset($currentShowID)) {
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return array();
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}
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$sql = "Select ft.artist_name, ft.track_title, st.starts as starts, st.ends as ends, st.media_item_played as media_item_played
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FROM cc_schedule st LEFT JOIN cc_files ft ON st.file_id = ft.id
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WHERE st.instance_id = '$currentShowID' AND st.playout_status > 0
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ORDER BY st.starts";
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//Logging::log($sql);
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$rows = $CC_DBC->GetAll($sql);
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$numberOfRows = count($rows);
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$results;
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$results['previous'] = null;
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$results['current'] = null;
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$results['next'] = null;
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$timeNowAsMillis = strtotime($p_timeNow);
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for( $i = 0; $i < $numberOfRows; ++$i ){
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if ((strtotime($rows[$i]['starts']) <= $timeNowAsMillis) && (strtotime($rows[$i]['ends']) >= $timeNowAsMillis)){
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if ( $i - 1 >= 0){
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$results['previous'] = array("name"=>$rows[$i-1]["artist_name"]." - ".$rows[$i-1]["track_title"],
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"starts"=>$rows[$i-1]["starts"],
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"ends"=>$rows[$i-1]["ends"]);
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}
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$results['current'] = array("name"=>$rows[$i]["artist_name"]." - ".$rows[$i]["track_title"],
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"starts"=>$rows[$i]["starts"],
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"ends"=>$rows[$i]["ends"],
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"media_item_played"=>$rows[$i]["media_item_played"],
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"record"=>0);
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if ( isset($rows[$i+1])){
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$results['next'] = array("name"=>$rows[$i+1]["artist_name"]." - ".$rows[$i+1]["track_title"],
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"starts"=>$rows[$i+1]["starts"],
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"ends"=>$rows[$i+1]["ends"]);
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}
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break;
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}
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if (strtotime($rows[$i]['ends']) < $timeNowAsMillis ) {
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$results['previous'] = array("name"=>$rows[$i]["artist_name"]." - ".$rows[$i]["track_title"],
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"starts"=>$rows[$i]["starts"],
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"ends"=>$rows[$i]["ends"]);;
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}
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if (strtotime($rows[$i]['starts']) > $timeNowAsMillis) {
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$results['next'] = array("name"=>$rows[$i]["artist_name"]." - ".$rows[$i]["track_title"],
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"starts"=>$rows[$i]["starts"],
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"ends"=>$rows[$i]["ends"]);
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break;
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}
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}
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return $results;
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}
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public static function GetLastScheduleItem($p_timeNow){
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global $CC_CONFIG, $CC_DBC;
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@ -1680,6 +1680,71 @@ class Application_Model_Show {
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return $rows;
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}
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/**
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* Gets the current show, previous and next with an 2day window from the given timeNow, so timeNow-2days and timeNow+2days.
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*/
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public static function getPrevCurrentNext($timeNow)
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{
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global $CC_CONFIG, $CC_DBC;
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//TODO, returning starts + ends twice (once with an alias). Unify this after the 2.0 release. --Martin
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$sql = "SELECT si.starts as start_timestamp, si.ends as end_timestamp, s.name, s.id, si.id as instance_id, si.record, s.url, starts, ends"
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." FROM $CC_CONFIG[showInstances] si, $CC_CONFIG[showTable] s"
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." WHERE si.show_id = s.id"
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." AND si.starts > TIMESTAMP '$timeNow' - INTERVAL '2 days'"
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." AND si.ends < TIMESTAMP '$timeNow' + INTERVAL '2 days'"
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." AND modified_instance != TRUE";
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//Logging::log($sql);
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// Convert back to local timezone
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$rows = $CC_DBC->GetAll($sql);
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$numberOfRows = count($rows);
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$results;
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$results['previousShow'] = array();
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$results['currentShow'] = array();
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$results['nextShow'] = array();
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$timeNowAsMillis = strtotime($timeNow);
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for( $i = 0; $i < $numberOfRows; ++$i ){
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if ((strtotime($rows[$i]['starts']) <= $timeNowAsMillis) && (strtotime($rows[$i]['ends']) >= $timeNowAsMillis)){
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if ( $i - 1 >= 0){
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$results['previousShow'][0] = array("name"=>$rows[$i-1]['name'],
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"start_timestamp"=>$rows[$i-1]['start_timestamp'],
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"end_timestamp"=>$rows[$i-1]['end_timestamp'],
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"starts"=>$rows[$i-1]['starts'],
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"ends"=>$rows[$i-1]['ends']);
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}
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$results['currentShow'][0] = $rows[$i];
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if ( isset($rows[$i+1])){
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$results['nextShow'][0] = array("name"=>$rows[$i+1]['name'],
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"start_timestamp"=>$rows[$i+1]['start_timestamp'],
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"end_timestamp"=>$rows[$i+1]['end_timestamp'],
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"starts"=>$rows[$i+1]['starts'],
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"ends"=>$rows[$i+1]['ends']);
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}
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break;
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}
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if (strtotime($rows[$i]['ends']) < $timeNowAsMillis ) {
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$results['previousShow'][0] = array("name"=>$rows[$i]['name'],
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"start_timestamp"=>$rows[$i]['start_timestamp'],
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"end_timestamp"=>$rows[$i]['end_timestamp'],
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"starts"=>$rows[$i]['starts'],
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"ends"=>$rows[$i]['ends']);
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}
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if (strtotime($rows[$i]['starts']) > $timeNowAsMillis) {
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$results['nextShow'][0] = array("name"=>$rows[$i]['name'],
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"start_timestamp"=>$rows[$i]['start_timestamp'],
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"end_timestamp"=>$rows[$i]['end_timestamp'],
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"starts"=>$rows[$i]['starts'],
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"ends"=>$rows[$i]['ends']);
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break;
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}
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}
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return $results;
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}
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/**
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* Given a start time $timeStart and end time $timeEnd, returns the next $limit
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* number of shows within the time interval;
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