scheduled_task.inc

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<?php
class ScheduledTask extends DataItem
{
     var $table = "scheduled_task";
     var $primary_key = "task_id";
     
     var $fields = array("task_id"           =>   Number,
                              "component"              =>   String,
                              "task_name"              =>   String,
                              "run_every_hour"    =>   Boolean,
                              "schedule"               =>   TaskSchedule,
                              "active"            =>   Boolean);
     
     var $relations = array("LogEntries"     =>   ScheduledTaskLogEntry,
                                 "LastRun"   =>   ScheduledTaskLogEntry);
     
     function LogEntries($constraint = "")
     {
          return $this->getRelatedList(ScheduledTaskLogEntry, "", $constraint);
     }
     
     static function getInstance($component, $task_name)
     {
          return Query::create(ScheduledTask, "WHERE component=:c AND task_name=:t")
                        ->bind(":c", $component, ":t", $task_name)
                        ->executeSingle();
     }
     
     function LastRun()
     {
          if ($this->_lastRun) return $this->_lastRun;
          $lastRun = $this->LogEntries("ORDER BY log_date DESC limit 1");
          $this->_lastRun = $lastRun;
          return $lastRun;
     }
     
     function run()
     {
          $mgr = new ScheduledTaskManager();
          $mgr->executeTask($this->component, $this->task_name);
     }
}    
 
 
class ScheduledTaskLogEntry extends DataItem
{
     var $table = "scheduled_task_log_entry";
     var $primary_key = "log_entry_id";
     
     
     var $fields = array("log_entry_id" =>   Number,
                              "task_id"      =>   Number,
                              "log_date"          =>   DateTime,
                              "log"               =>   Text,
                              "status"       =>   String);
     
     var $relations = array("Task" =>   ScheduledTask);
     
     function Task()
     {
          return $this->getRelated(ScheduledTask);
     }
}
?>