How to create a validation when importing CSV in Laravel using Maatwebsite? - laravel

Question

How to create a validation when importing CSV. I'm using the "maatwebsite/excel": "^3.1" if the imported csv column header name is not exact with the database column it should display some validation. This is my reference LaravelDaily
/
Laravel-8-Import-CSV
Importing CSV
public function parseImport(CsvImportRequest $request)
{
if ($request->has('header')) {
$headings = (new HeadingRowImport)->toArray($request->file('csv_file'));
$data = Excel::toArray(new AwardeesImport, $request->file('csv_file'))[0];
} else {
$data = array_map('str_getcsv', file($request->file('csv_file')->getRealPath()));
}
if (count($data) > 0) {
$csv_data = array_slice($data, 0, 6);
$csv_data_file = CsvData::create([
'csv_filename' => $request->file('csv_file')->getClientOriginalName(),
'csv_header' => $request->has('header'),
'csv_data' => json_encode($data)
]);
} else {
return redirect()->back();
}
return view('admin.import-csv.import-fields', [
'headings' => $headings ?? null,
'csv_data' => $csv_data,
'csv_data_file' => $csv_data_file
])->with('success', 'The CSV file imported successfully');;
}
When parsing CSV
public function processImport(Request $request)
{
$data = CsvData::find($request->csv_data_file_id);
$csv_data = json_decode($data->csv_data, true);
foreach ($csv_data as $row) {
$awardees = new SIS();
foreach (config('app.db_fields') as $index => $field) {
if ($data->csv_header) {
$awardees->$field = $row[$request->fields[$field]];
} else {
$awardees->$field = $row[$request->fields[$index]];
}
}
$awardees->save();
}
return redirect()->action([ImportController::class, 'index'])->with('success', 'Import finished.');
}
CsvImportRequest
public function rules()
{
return [
'csv_file' => 'required|mimes:csv,txt'
];
}
config/app.php
'db_fields' => [
'email_address',
'surname',
'first_name',
'middle_name',
'course',
'year_level',
'contact_number',
'gwa_1st',
'gwa_2nd',
'applying_for',
'remarks',
'comments'
]
if one of those field is missing it should show the validation error