/** 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);
}
$newTask->task_parent = $taskXref[$nid2op[$newTask->task_id]];
$newTask->store();
$newTask->updateDependencies($newDeps[$task_id]);
}
// end check if imported task
$newTask->store();
}
// end Fix record integrity
}
function update_dep_dates($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) {
$newTask->updateDynamics();
}
return;
}
// we will reset the task's start date based upon dependencies
// and shift the end date appropriately
if ($adjustStartDate && !is_null($hdependencies)) {
// 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);
