I have a store Method for my TransactionController, at the moment it does validate that the required information is received (standard Laravel validation), nonetheless, it can’t check if the value received exists on a third table (since it’s a foreign key).
Store method of TransactionController.php
public function store(Request $request)
{
$request -> validate([
'folio' => 'required',
'codigo_referido_id' => 'required',
'descuento_activo_id' => 'required',
'lead_id' => 'required'
]);
}
[...]
I want to add further validation to ensure that the information received is ready for get stored in the database and if it is not, inform the user with a custom message.
This is done with:
TransactionController.php store Method
[...]
if($request['codigo_referido_id']){
if( Empleado::find($request['codigo_referido_id']) ){
// Continue to the next validation
}else{
// return to view with the error message [I want to use the default $errors variable to store the error return].
}
}
How can I return back to the view sending my custom error message in the else clause?
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Answer
You can add custom validation for this instead of if else
$request -> validate([
'folio' => 'required',
'codigo_referido_id' => ['required', function ($attribute, $value, $fail) {
if (!Empleado::find($value)) {
$fail('The '.$attribute.' is invalid.');
}
}],
'descuento_activo_id' => 'required',
'lead_id' => 'required'
]);
Ref:https://laravel.com/docs/8.x/validation#custom-validation-rules