<?php

$query = "SELECT * FROM articulos WHERE codigo = " . $_REQUEST['codigo'];
$result = mysql_query($query);
if (mysql_num_rows($result) > 0) {
    $action_message = "El código ya ha sido utilizado";
    return;
}
include_once "include/image_handler.php";
$image = new ImageHandler("images/articulos/");
$ImagenSubida = $image->load();
$query = "\n        INSERT INTO articulos (\n            codigo,\n            descripcion,\n            categoria,\n            proveedor,\n            marca,\n            costo,\n            precio,\n            alicuota,";
if ($ImagenSubida) {
    $query .= "imagen,";
}
$query .= " resumen, existencia) VALUES (\n            '" . $_REQUEST['codigo'] . "',\n            '" . htmlspecialchars(addslashes($_REQUEST['descripcion'])) . "',\n            " . $_REQUEST['categoria'] . ",\n            " . $_REQUEST['proveedor'] . ",\n            " . $_REQUEST['marca'] . ",\n            " . $_REQUEST['costo'] . ",\n            " . $_REQUEST['precio'] . ",\n            " . $_REQUEST['alicuota'] . ",";
if ($ImagenSubida) {
    $query .= "'" . $ImagenSubida . "',";
}
$query .= "'" . htmlspecialchars(addslashes($_REQUEST['resumen'])) . "', 0)";
if (!mysql_query($query)) {
    $action_message = mysql_error();
    return;
}
$action_message = "Se ha agregado el artículo";