array_push($ids['ungrouped'], $id);
    }
}
for ($i = 0; $i < sizeof($equations['grouped']); $i++) {
    foreach ($equations['groups'] as $group) {
        $id = "e" . $i . "g" . $group;
        array_push($ids['grouped'], $id);
    }
}
foreach ($ids['grouped'] as $grouped) {
    $assign = $_POST[$grouped] == true ? true : false;
    $equation_index = explode('e', explode('g', $grouped)[0])[1];
    $group = explode('g', $grouped)[1];
    if ($assign) {
        $equationController->assignEquation($equations['grouped'][$equation_index][0]->getEquation(), $group);
    } else {
        $equationController->unassignEquation($equations['grouped'][$equation_index][0]->getEquation(), $group);
    }
}
foreach ($ids['ungrouped'] as $ungrouped) {
    $assign = $_POST[$ungrouped] == true ? true : false;
    $equation_index = explode('ue', explode('g', $ungrouped)[0])[1];
    $group = explode('g', $ungrouped)[1];
    if ($assign) {
        $equationController->assignEquation($equations['ungrouped'][$equation_index]->getEquation(), $group);
    } else {
        $equationController->unassignEquation($equations['ungrouped'][$equation_index]->getEquation(), $group);
    }
}
echo '<script type="text/javascript">alert("Asignacion realizada"); document.location.href="../view/assignEquations.php";</script>';
//header('location: ../view/assignEquations.php');