I am developing a sales system, and in the ticket window I have the search button that allows me to go to another page with the list of articles. This consists of two buttons. One is adding that adds the product in question to an array of details of the ticket object (work with MVC and POO), and the other one that returns to the previous window
Class ticket and detail.
<?php
require_once ("includes/claseConexion.php");
require_once ("claseProducto.php");
class detalleTicket{
private $idp;
private $precio;
private $cantidad;
private $nombre;
private $subtotal;
public function __construct($id,$pu,$cant,$nom){
$this->idp=$id;
$this->precio=$pu;
$this->cantidad=$cant;
$this->nombre=$nom;
$this->subtotal= ($this->cantidad * $this->precio);
}
public function setSubtoal($sub){
$this->subtotal=$sub;
}
public function actualizaCantidad($nueva){
$this->cantidad=$this->cantidad + $nueva;
$sub= $this->cantidad * $this->precio;
$this->setSubtoal($sub);
}
}
class Ticket{
private $id;
private $detalle = array();
private $fecha;
private $hora;
private $total;
private $stm;
private $vuelto;
public function __construct($f,$h){
$this->fecha=$f;
$this->hora=$h;
}
public function agregaDetalle($d){
$this->detalle[] = $d;
}
public function setTotal($val){
$this->total=$val;
}
public function listarArt(){
return $this->detalle();
}
public function registrar(){
//me conecto a la bd
$conexion = Conexion::singleton_conexion();
try{
$conexion->beginTransaction();
$queryid="select comprobante from identificadores;";
$array=$conexion->query($queryid);
foreach($array as $a){
$id = $a['comprobante'];
}
$qnuevoid="UPDATE identificadores SET comprobante=".++$id.";";
$conexion->query($qnuevoid);
$queryticket="insert into despensa.ticket (idticket, fecha, total,vuelto) values (".$id.",'".$this->fecha."',56,88);";
$conexion->query($queryticket);
$conexion->commit();
}catch(Exception $e){
$conexion->rollBack();
echo "Fallo: " . $e->getMessage();
}
}
}
?>The problem I have is that I want to list the items added to the cart when I return to the page and it gives me a JSON parsing error: REQUESTED JSON PARSE FAILED.
For the same thing I have an intermediate jquery code and a file of poroceso:
$(document).ready(function() {
listarDetalle();
});
function listarDetalle(){
var accion="listar";
$.ajax({
type: "POST",
url: "../gestionweb/includes/php/procesoDetalle.php",
data: { "accion":accion},
dataType: "json",
error: function(){
alert("error petición ajax");
},
success: function(data){
content=data;
for (var i = 0; i < data.length; i++) {
var newRow =
"<tr>" +
"<td>" + data[i].idproducto + "</td>" +
"<td>" + data[i].nombre + "</td>" +
"<td>" + data[i].marca + "</td>" +
"<td>" + data[i].categoria + "</td>" +
"<td>" + data[i].precio + "</td>" +
"<td><input type='radio' id='"+data[i].idproducto+"' name='seleccion'/></td>"+
"</tr>";
$(newRow).appendTo("#resultado tbody");
}
}
}).fail( function( jqXHR, textStatus, errorThrown ) {
if (jqXHR.status === 0) {
alert('Not connect: Verify Network.');
} else if (jqXHR.status == 404) {
alert('Requested page not found [404]');
} else if (jqXHR.status == 500) {
alert('Internal Server Error [500].');
} else if (textStatus === 'parsererror') {
alert('Requested JSON parse failed.');
} else if (textStatus === 'timeout') {
alert('Time out error.');
} else if (textStatus === 'abort') {
alert('Ajax request aborted.');
} else {
alert('Uncaught Error: ' + jqXHR.responseText);
}
});;
};<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>Bone in the ready of the document ready the articles but it gives me error:
<?php
include ("claseTicket.php");
$ticket = new Ticket($fecha,$hora);
function listarProductos(){
$arrayarticulos=$ticket->listarArt();
echo json_encode($arrayarticulos);
}
if (isset($_POST['accion'])){
if ($_POST['accion']="listar"){
$arrayarticulos=$ticket->listarArt();
echo json_encode($arrayarticulos);
}else if ($_POST['accion']="agregar"){
$id = $_POST['id'];
$precio = $_POST['precio'];
$cant=$_POST['cantidad'];
$nom=$_POST['nombre'];
$registro = new detalleTicket($id,$precio,$cant,$nom);
$ticket->agregaDetalle($registro);
}
}
?>I really do not know what it can be ... the error is: Error in the request ajax..Requested JSON parse failed.