Laravel - Undefined variable: request in multiple submit button - laravel

Question

In my Laravel-5.8 application, I have two submit buttons for different purposes:
Controller
public function store(StoreLeaveRequestRequest $request)
{
DB::beginTransaction();
try {
//check which submit was clicked on
if ($request->has('apply')) {
$leaverequest = new HrLeaveRequest;
$leaverequest->authorized_days = $request->authorized_days;
$leaverequest->available_days = $request->available_days;
$leaverequest->no_of_days = $days;
if($employeelinemanagerid == $employeehodid )
{
$leaverequest->line_manager_notified = 1;
$leaverequest->hod_notified = 1;
}else{
$leaverequest->line_manager_notified = 1;
}
$leaverequest->save();
$this->getLineManagerUserId();
} elseif($request->has('draft')) {
$leaverequest = new HrLeaveRequest;
$leaverequest->authorized_days = $request->authorized_days;
$leaverequest->available_days = $request->available_days;
$leaverequest->no_of_days = $days;
$leaverequest->save();
}
DB::commit();
Session::flash('success', 'Leave Request is created successfully');
return redirect()->route('service.leave_requests.index');
}
catch (Exception $exception)
{
dd($exception->getMessage());
DB::rollback();
Session::flash('error', 'Action failed!');
return redirect()->route('service.leave_requests.index');
}
}
view
<form action="{{route('service.leave_requests.store')}}" method="post" class="form-horizontal" enctype="multipart/form-data">
{{csrf_field()}}
<div class="card-body">
<div class="form-body">
<div class="row">
</div>
</div>
</div>
<!-- /.card-body -->
<div class="card-footer">
<button type="submit" name="apply" class="btn btn-primary">Submit</button>
<button type="submit" name="draft" class="btn btn-warning">Save as Draft</button>
</div>
</form>
I used name="apply" for
($request->has('apply'))
and name="draft" for
($request->has('draft'))
When I click on any of the submit buttons, I got this error:
"Undefined variable: request"
I tried to check, I don't know where the error is coming from
Where did I get it wrong?
Kindly assist.
Thanks