How to define variable in controller in laravel - laravel

Question

I have a URL used in blade template as:
href="{{ route('download', ['year' => $year, 'month' => $month, 'file' => $file_path]) }}"
when I am running my code then it is giving me an error as:
Undefined variable: year (View: C:\wamp64\www\Blog\employee-portal\resources\views\finance\invoice\edit.blade.php)
How can i define this $year variable in my controller?
In my controller the function is written as:
public function download($year, $month, $file, $inline = true)
{
$headers = [
'content-type' => 'application/pdf',
];
$file_path = FileHelper::getFilePath($year, $month, $file);
if (!$file_path) {
return false;
}
if ($inline) {
return Response::make(Storage::get($file_path), 200, $headers);
}
return Storage::download($file_path);
}
}
Edit function is written as:
public function edit(Invoice $invoice)
{
$projectStageBillings = $invoice->projectStageBillings;
$projectStageBilling = $projectStageBillings->first();
$client = $projectStageBilling->projectStage->project->client;
$client->load('projects', 'projects.stages', 'projects.stages.billings');
$billings = [];
foreach ($projectStageBillings as $key => $billing) {
$billing->load('projectStage', 'projectStage.project');
$billings[] = $billing;
}
return view('finance.invoice.edit')->with([
'invoice' => $invoice,
'clients' => Client::select('id', 'name')->get(),
'invoice_client' => $client,
'invoice_billings' => $billings,
]);
}

Answer 1

This error states that the view finance\invoice\edit.blade.php is missing the variable $year. And it is true, take a look at the return of your edit function:
return view('finance.invoice.edit')->with([
'invoice' => $invoice,
'clients' => Client::select('id', 'name')->get(),
'invoice_client' => $client,
'invoice_billings' => $billings,
]);
You are not sending any $year variable to the view here (the variables sent to the view are invoice,clients,invoice_client and invoice_billings.
To solve your problem, just send a $year variable to the view and you'll be ok :)