Laravel - validate input arrays and return values in case of error

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Laravel - validate input arrays and return values in case of error

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#1 by (2 votes)

3

I am creating form using the following code:

In the create.blade.php file

{!! Form::open(['route'=>'orcamentos.store']) !!}
{!! Form::text('descricao', null, ['class'=>'form-control', 'autofocus']) !!}
{!! Form::text('produto[]', null, ['class'=>'form-control']) !!}
{!! Form::text('produto[]', null, ['class'=>'form-control']) !!}
// Esse campo produto pode se repetir inúmeras vezes em tela
{!! Form::submit('Salvar', ['class'=>'btn btn-primary']) !!}

Notice that I can have 'N' input 'product'.

In my controller I have this:

public function store(OrcamentoRequest $request){...}

And in the OrcamentoRequest class I want to validate the mandatory fields, does anyone know how I can do this?

Within function rules I have already made some attempts based on the searches made on the internet, but I did not succeed.

Below are some unsuccessful attempts:

TRY 1:

$rules = [
     'descricao' => 'required',
     'produto.*' => 'required',
 ];

TRY 2:

foreach($this->request->get('produto') as $key => $val){
  $rules['produto.'.$key] = 'required';
}

I also found something in the documentation itself. link here but nothing worked.

The error you are giving is this:

ErrorException in helpers.php line 531:
htmlentities() expects parameter 1 to be string, array given

Has anyone gone through this before? Or do you know the answer?

laravel laravel-5 laravel-blade

asked by anonymous 01.06.2016 / 04:09

1 answer

Delegating events to dynamically generated elements Why do I get QNAN Error when I calculate this?

score 2 · Accepted Answer

I've been testing and for what it seems to me to be doing it this way is because it's using Laravel 5.2, since the previous ones had no built-in validation for array inputs so I did:

LARAVEL 5.2:

HTML:

@foreach ($errors->all() as $error)
    {{$error}}<br>  <!-- imprimir os erros de validação caso haja algum, serão enviados pelo Validator -->
@endforeach

<form action="/product/store" method="POST">
    {!! csrf_field() !!}
    <input type="text" name="descricao" value="{{old('descricao')}}"></input>
    <input type="text" name="products[]" value="{{old('products.0')}}"></input>
    <input type="text" name="products[]" value="{{old('products.1')}}"></input>
    <input type="text" name="products[]" value="{{old('products.2')}}"></input>
    <input type="text" name="products[]" value="{{old('products.3')}}"></input>
    <input type="submit">
</form>

Routa:

Route::post('/product/store', 'TestsController@product_store');

Controller:

use Validator;
...

public function product_store(Request $request) {

    $inputs = $request->except('_token'); // valores de todos os inputs excepto o do csfr token
    // $inputs = Array ( [descricao] => mobilidade [products] => Array ( [0] => carro [1] => mota [2] => camiao [3] => barco) )

    $rules = array(
        'descricao' => 'required', // mesmo nome dos nossos inputs, name="descricao"
        'products.*' => 'required' // mesmo nome dos nossos inputs, name="products"
    );

    $validator = Validator::make($inputs, $rules);
    if($validator->fails()) {
        return redirect()->back()->withInput()->withErrors($validator); // voltar para trás e enviar os erros, regras ($rules), que não foram respeitadas
    }
    // Esta tudo bem, fazer outras coisas
}

And it worked.

LARAVEL 5.1:

Here I had to take a slightly different approach since it does not seem to have validation for arrays by default:

The only thing I changed was in the controller, so:

public function product_store(Request $request) {

    $inputs = $request->except('_token');
    // $inputs = Array ( [descricao] => mobilidade [products] => Array ( [0] => carro [1] => mota [2] => camiao [3] => barco) )

    $products = array(
        'descricao' => $inputs['descricao'], // valor da descricao introduzido
    );

    $rules = array(
        'descricao' => 'required', // mesma key que demos nos $products
    );

    foreach ($inputs['products'] as $key => $value) {
        $products['product_' .$key] = $value;
        $rules['product_' .$key] = 'required';
    }

    $validator = Validator::make($products, $rules);
    if($validator->fails()) {
        return redirect()->back()->withInput()->withErrors($validator); // voltar para trás e enviar os erros, regras ($rules), que não foram respeitadas
    }
    // Esta tudo bem, fazer outras coisas
}

Always remember that the keys of the rules, our $rules , must be the same keys of the array that we will validate, in the latter case of $products