data registration via ajax

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I’m trying to register data by ajax and the data is not going to the BD. I did a test, direct, between html and php and it worked, but html, ajax and php won’t. HTML:

<form method="post">

MONTHLY AVERAGE SALE Sale S/Margin

Follows the code JQ with ajax:

$(document).ready( function(){

    $("#salvar").click( function(){

        var dataString = $("form").serialize();

        $.ajax({
            url: 'php/salvarCustos.php',
            type: 'POST',
            dataType: 'json',
            data: dataString,

            success: function(data){
                alert(JSON.stringify(data));
                if(data.status == 1){
                    $("#msg").val(data.status);
                    $("#msg").show();
                }
                if(data.status == 2){
                    $("#msg").val(data.status);
                    $("#msg").show();
                }
            },

            error: function(data){
                alert(data);
            }
        });
    });
})

PHP:

@$vendaMediaMensal = $_POST['vendaMediaMensal'];
@$vendaSemMargemPercentual = $_POST['vendaSemMargemPercentual'];
$vendaMediaMensal = floatval(str_replace(',', '.', str_replace('.', '', $vendaMediaMensal)));
$vendaSemMargemPercentual = floatval(str_replace(',', '.', str_replace('.', '', $vendaSemMargemPercentual)));
$qryConsulta = mysql_query("SELECT * FROM custos");
$qryNum = mysql_num_rows($qryConsulta);

if($qryNum == 0){
    $qryInsere = "INSERT INTO custos VALUES('$vendaMediaMensal','$vendaSemMargemPercentual')";
    $insere = mysql_query($qryInsere);
    echo json_encode( array('status' => 1, 'msg' => 'Cadastro efeutado com sucesso!'));
}else{
    $qryAtualiza = "UPDATE custos SET vendaMediaMensal='$vendaMediaMensal'";
    $atualiza = mysql_query($qryAtualiza);
    echo json_encode( array('status' => 2, 'msg' => 'Atualização efeutada com sucesso!'));
}
php jquery ajax

  • Can you put HTML in too? There is an error in the console?

2 answers

1

I see a problem in the query. Missing are the fields where these values will be inserted.

Must be:

"INSERT INTO custos (`campo1`,`campo2`) VALUES ('$vendaMediaMensal','$vendaSemMargemPercentual')";

  • @Sergio, no use, do not put the table fields and always worked. Use this same SQL command line always and works. I think the problem is in JQ, because I tested HTML with PHP and the registration worked.

  • @Gustavosevero the answer is Lelo Legend and not mine. You can put the HTML as I asked in the comment in the question?

0

This should be pq vc is setting up your ajax to send json, only with the code below:

var dataString = $("form").serialize();

... vc is sending "application/x-www-form-urlencoded" (in terms of formatting is the same that we find in the querystring of a url).

You should pass an object (or JSON) in the "date attribute":

data: { atributo: "Valor" }

And in PHP you could take the data like this:

$body = json_decode(file_get_contents('php://input'));
echo $body->atributo;

Or... You can simply leave everything as it is and remove the attribute "dataType". In this case it will work like Submit without ajax.

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