/**
* Update size of task. Old task sizes are kept as a linked list
* inside the database, so no information is lost when updating.
*
* Returns task object or NULL on failure.
*/
public static function update_task_size($task_id, $task_size)
{
if ($task_size < 0.0) {
return NULL;
}
$task = Sql::get_task_from_id($task_id);
if ($task && Sql::project_owner_for_id_is_logged_in($task->get_project_id())) {
$old_size_id = $task->get_size_id();
$old_size = Sql::get_size($old_size_id);
$size_id = Sql::create_size_authed($task_size, $old_size_id);
if ($size_id > 0) {
$query = new SqlQuery("UPDATE Tasks SET task_sizeid='%s' WHERE task_id='%s' LIMIT 1", $size_id, $task_id);
if ($query->was_successful()) {
$size_change = $task_size - $old_size;
Sql::update_todays_remaining_work_authed($task->get_project_id(), $size_change);
$task->set_size($task_size);
}
}
}
return $task;
}