/**
* a function that is passed to PHP's usort function in order to determine
* the correct order of an array of milestone objects
*
* @param Codebase_Model_Milestone $a
* @param Codebase_Model_Milestone $b
* @return type
* @static
*/
public static function sort(Codebase_Model_Milestone $a, Codebase_Model_Milestone $b)
{
$return_value = 0;
$a_deadline = strtotime($a->get_deadline());
$b_deadline = strtotime($b->get_deadline());
if ($a_deadline != $b_deadline) {
$return_value = $a_deadline < $b_deadline ? -1 : 1;
}
return $return_value;
}
/**
* Returns all milestones belonging to the project
*
* @return array A collection Codebase_Model_Milestone objects
*/
public function get_milestones()
{
if ($this->milestones === NULL) {
$this->milestones = Codebase_Model_Milestone::get_milestones_for_project($this->get_request(), $this->get_permalink());
}
// add a reference back to self
foreach ($this->milestones as $milestone) {
$milestone->set_project($this);
}
return $this->milestones;
}
