public function savestudy()
{
try {
# check login
if (!Check::digits($rid = $_SESSION['user']['researcher_id'])) {
throw new Exception('invalid researcher id!');
}
# check input values
foreach ($_POST as $pfield => $pvalue) {
$_POST[$pfield] = trim($pvalue);
}
if (empty($_POST['study_title'])) {
throw new Exception('need a study title!');
}
if (!Check::isdate($_POST['startdate'], false)) {
throw new Exception('bad startdate format should be YYYY-MM-DD');
}
if (!Check::isdate($_POST['enddate'], false)) {
throw new Exception('bad enddate format should be YYYY-MM-DD');
}
list($_POST['startdate'], $_POST['enddate']) = Check::order($_POST['startdate'], $_POST['enddate']);
# first create or save the study
$s = new Study();
if (Check::digits($_POST['study_id'], $empty = false)) {
$study_id = $_POST['study_id'];
unset($_POST['study_id']);
if ($s->upd($study_id, $_POST) === false) {
throw new Exception($s->err());
}
} else {
if ($s->ins($_POST) === false) {
throw new Exception($s->err());
}
$study_id = $s->getid();
}
# associate the study with the researcher
$r = new Research();
if ($r->ins(array('study_id' => $study_id, 'researcher_id' => $rid)) === false) {
throw new Exception($r->err());
}
View::assign('study_id', $study_id);
return 'study.tpl';
} catch (Exception $e) {
$this->err($e);
View::assign('error', $this->error);
return 'error.tpl';
}
}
