PHP CDate::calcDuration方法代码示例

 /**	Import tasks from another project
  *
  *	@param	int		Project ID of the tasks come from.
  *	@return	bool
  **/
 function importTasks($from_project_id, $scale_project = false)
 {
     // Load the original
     $origProject = new CProject();
     $origProject->load($from_project_id);
     $q = new DBQuery();
     $q->addTable('tasks');
     $q->addQuery('task_id');
     $q->addWhere('task_project =' . $from_project_id);
     $sql = $q->prepare();
     $q->clear();
     $tasks = array_flip(db_loadColumn($sql));
     //Pristine Start and End Dates of Source and Destination Projects
     $origStartDate = new CDate($origProject->project_start_date);
     $origEndDate = new CDate($origProject->project_end_date);
     $destStartDate = new CDate($this->project_start_date);
     $destEndDate = new CDate($this->project_end_date);
     $dateOffset = $destStartDate->dateDiff($origStartDate);
     //Check that we have enough information to scale properly
     //(i.e. no information is missing or "zero")
     if (empty($origProject->project_start_date) || empty($origProject->project_end_date) || empty($this->project_start_date) || empty($this->project_end_date) || $origProject->project_start_date == '0000-00-00 00:00:00' || $origProject->project_end_date == '0000-00-00 00:00:00' || $this->project_start_date == '0000-00-00 00:00:00' || $this->project_end_date == '0000-00-00 00:00:00') {
         $scale_project = false;
     }
     if ($scale_project) {
         //get ratio for scaling, protect from division by 0
         $ratio = (abs($destEndDate->dateDiff($destStartDate)) + 1) / (abs($origEndDate->dateDiff($origStartDate)) + 1);
     }
     // Old dependencies array from imported tasks
     $deps = array();
     // New dependencies array for new copies of imported tasks
     $newDeps = array();
     // Old2New task ID array
     $taskXref = array();
     // New task ID to old parent array
     $nid2op = array();
     // Copy each task into this project and get their deps
     foreach ($tasks as $orig => $void) {
         $objTask = new CTask();
         $objTask->load($orig);
         // Grab the old parent id
         $oldParent = (int) $objTask->task_parent;
         $deps[$orig] = $objTask->getDependencies();
         $destTask = $objTask->copy($this->project_id, 0);
         $nid2op[$destTask->task_id] = $oldParent;
         $tasks[$orig] = $destTask;
         $taskXref[$orig] = (int) $destTask->task_id;
     }
     // Build new dependencies array
     foreach ($deps as $odkey => $od) {
         $ndt = '';
         $ndkey = $taskXref[$odkey];
         $odep = explode(',', $od);
         foreach ($odep as $odt) {
             $ndt = $ndt . $taskXref[$odt] . ',';
         }
         $ndt = rtrim($ndt, ',');
         $newDeps[$ndkey] = $ndt;
     }
     $q->addTable('tasks');
     $q->addQuery('task_id');
     $q->addWhere('task_project =' . $this->project_id);
     $tasks = $q->loadColumn();
     // Update dates based on new project's start date.
     $origDate = new CDate($origProject->project_start_date);
     $origStartHour = new CDate($this->project_start_date);
     $destDate = new CDate($this->project_start_date);
     foreach ($tasks as $task_id) {
         $newTask = new CTask();
         $newTask->load($task_id);
         if (in_array($task_id, $taskXref)) {
             $task_date_vars = array('task_start_date', 'task_end_date');
             //Adjust task dates based on calculated offsets
             foreach ($task_date_vars as $my_date) {
                 if (!empty($newTask->{$my_date}) && $newTask->{$my_date} != '0000-00-00 00:00:00') {
                     $origDate->setDate($newTask->{$my_date});
                     $origStartHour->setDate($newTask->{$my_date});
                     $origStartHour->setTime(intval(dPgetConfig('cal_day_start')));
                     $destDate->setDate($newTask->{$my_date});
                     $destDate->addDays($dateOffset);
                     if ($scale_project) {
                         $offsetAdd = round($origDate->dateDiff($origStartDate) * $ratio) - $origDate->dateDiff($origStartDate);
                         $destDate->addDays($offsetAdd);
                         $hours_in = $origStartHour->calcDuration($origDate);
                         $offsetAddHours = round($hours_in * $ratio) - $hours_in;
                         if ($offsetAddHours % dPgetConfig('daily_working_hours')) {
                             $destDate->addDuration($offsetAddHours);
                         }
                     }
                     $destDate = $destDate->next_working_day();
                     $newTask->{$my_date} = $destDate->format(FMT_DATETIME_MYSQL);
                 }
             }
             //Adjust durration to scale
             if ($scale_project) {
                 $newTask->task_duration = round($newTask->task_duration * $ratio, 2);
//.........这里部分代码省略.........

 function update_dep_dates($task_id)
 {
     global $tracking_dynamics;
     $q = new DBQuery();
     $newTask = new CTask();
     $newTask->load($task_id);
     // Do not update tasks that are not tracking dependencies
     if (!in_array($newTask->task_dynamic, $tracking_dynamics)) {
         return;
     }
     // load original task dates and calculate task time span
     $tsd = new CDate($newTask->task_start_date);
     $ted = new CDate($newTask->task_end_date);
     $duration = $tsd->calcDuration($ted);
     // reset start date
     $nsd = new CDate($newTask->get_deps_max_end_date($newTask));
     // prefer Wed 8:00 over Tue 16:00 as start date
     $nsd = $nsd->next_working_day();
     $new_start_date = $nsd->format(FMT_DATETIME_MYSQL);
     // Add task time span to End Date again
     $ned = new CDate();
     $ned->copy($nsd);
     $ned->addDuration($duration, '1');
     // make sure one didn't land on a non-working day
     $ned = $ned->next_working_day(true);
     // prefer tue 16:00 over wed 8:00 as an end date
     $ned = $ned->prev_working_day();
     $new_end_date = $ned->format(FMT_DATETIME_MYSQL);
     // update the db
     $q->addTable('tasks');
     $q->addUpdate('task_start_date', $new_start_date);
     $q->addUpdate('task_end_date', $new_end_date);
     $q->addWhere('task_dynamic <> 1 AND task_id = ' . $task_id);
     $q->exec();
     $q->clear();
     if ($newTask->task_parent != $newTask->task_id) {
         $newTask->updateDynamics();
     }
     return;
 }

 // load already stored task data for this task
 $tempTask = new CTask();
 $tempTask->load($obj->task_id);
 // shift new start date to the last dependency end date
 $nsd = new CDate($tempTask->get_deps_max_end_date($tempTask));
 // prefer Wed 8:00 over Tue 16:00 as start date
 $nsd = $nsd->next_working_day();
 // prepare the creation of the end date
 $ned = new CDate();
 $ned->copy($nsd);
 if (empty($obj->task_start_date)) {
     // appropriately calculated end date via start+duration
     $ned->addDuration($obj->task_duration, $obj->task_duration_type);
 } else {
     // calc task time span start - end
     $d = $tsd->calcDuration($ted);
     // Re-add (keep) task time span for end date.
     // This is independent from $obj->task_duration.
     // The value returned by Date::Duration() is always in hours ('1')
     $ned->addDuration($d, '1');
 }
 // prefer tue 16:00 over wed 8:00 as an end date
 $ned = $ned->prev_working_day();
 $obj->task_start_date = $nsd->format(FMT_DATETIME_MYSQL);
 $obj->task_end_date = $ned->format(FMT_DATETIME_MYSQL);
 $q = new DBQuery();
 $q->addTable('tasks', 't');
 $q->addUpdate('task_start_date', $obj->task_start_date);
 $q->addUpdate('task_end_date', $obj->task_end_date);
 $q->addWhere('task_id = ' . (int) $obj->task_id);
 $q->addWhere('task_dynamic <> 1');