generating dynamic pdf with DOMPDF in laravel - php

Question

I am trying to generate an invoice pdf with dynamic data (mostly taken from a form). This is the code:
class PDFController extends Controller
{
public function invoice() {
$institution = $this->institution();
$user = $this->user();
$invoice = $this->invoice_form();
return view('pdf-generation.invoice')->with(['institution' => $institution, 'user' => $user]);
}
public function institution() {
$institution = Institution::where('id', 1)->get()->first();
return $institution;
}
public function user() {
$user = Auth::user();
return $user;
}
public function invoice_form(Request $request) {
$this->validate($request, array(
'furnizor-select' => 'required',
'document-number' => 'required',
'document-date' => 'required',
'due-date' => 'required',
'discount-procent' => 'required',
'discount-value' => 'required',
'total-value' => 'required',
'nir-number' => 'nullable'
));
$invoice = new \App\Models\Invoice();
$invoice->provider_id = $request->input('furnizor-select');
$invoice->number = $request->input('document-number');
$invoice->document_date = $request->input('document-date');
$invoice->due_date = $request->input('due-date');
$invoice->discount_procent = $request->input('discount-procent');
$invoice->discount_value = $request->input('discount-value');
$invoice->total = $request->input('total-value');
$invoice->save();
$invoices = Invoice::all();
$invoice_id = $invoices->last()->id;
$old_date = $request->input('document-date');
$new_date = date("d-m-Y", strtotime($old_date));
$provider_id = $request->input('furnizor-select');
$provider = Provider::where('id', $provider_id)->get();
$invoice_number = $request->input('document-number');
$old_due_date = $request->input('due-date');
$new_due_date = date("d-m-Y", strtotime($old_due_date));
$filename = 'pdfs/nir'.$invoice_id.'.pdf';
}
}
However, I am getting this error:
Too few arguments to function App\Http\Controllers\PDFController::invoice_form(), 0 passed in /Users/cristimamota/NEWSAJ BACKUP PRE FINAL/app/Http/Controllers/PDFController.php on line 17 and exactly 1 expected
And this is because in the invoice() function, I am calling the invoice_form() function and is getting no parameter.. I think this is not the correct way to do it. How should I approach it?

Answer 1

Since your invoice_form(Request $request) requires a Request model as parameter you can change your invoice() method to take $request as parameter and pass that $request to your invoice_form() method. Change
public function invoice() {
$institution = $this->institution();
$user = $this->user();
$invoice = $this->invoice_form();
return view('pdf-generation.invoice')->with(['institution' => $institution, 'user' => $user]);
}
to
public function invoice(Request $request) {
$institution = $this->institution();
$user = $this->user();
$invoice = $this->invoice_form($request);
return view('pdf-generation.invoice')->with([
'institution' => $institution,
'user' => $user
]);
}