public function getIndex()
{
$expenseAll = Expense::orderBy('id', 'DESC')->paginate(15);
$expense = new Expense();
$allInvoices = $expense->getExpenseInvoiceDropDown();
$invoice = Input::get('invoice_id');
$expenseInvoice = Expense::where('invoice_id', $invoice)->get();
return view('Expenses.list', compact('expenseAll'))->with('allInvoices', $allInvoices)->with('expenseInvoice', $expenseInvoice);
}