public function validate()
{
$r = new Researcher();
if (is_array($_SESSION['user'])) {
$this->data = $_SESSION['user'];
} else {
if (empty($_POST['email']) or empty($_POST['password'])) {
return;
}
$this->data = $r->validate($_POST['email'], $_POST['password']);
$_SESSION['user'] = $this->data;
}
if (!$r->validstudy()) {
die("you do not have access to this study!");
}
}
