I have created a database with 7 tables, including all of them related.
In this web interface I need to modify all the records of the table including the field of the primary key, but I am never able to edit it and when I approach it it tells me that it is duplicated.
I have attached a mega link with my sql and my php where I have everything to modify it or I do not know what you want it to happen to you.
This is the code:
Index.php
<?php
require_once 'alumno.entidad.php';
require_once 'alumno.model.php';
// Logica
$alm = new Categoria();
$model = new CategoriaModel();
if(isset($_REQUEST['action']))
{
switch($_REQUEST['action'])
{
case 'actualizar':
// Recupero el acronimo del campo hidden
$alm->__SET('acronimo', $_REQUEST['acronimo']);
$alm->__SET('categoria', $_REQUEST['categoria']);
$update_results = $model->Actualizar($alm);
header('Location: index.php');
break;
case 'registrar':
$alm->__SET('acronimo', $_REQUEST['acronimo']);
$alm->__SET('categoria', $_REQUEST['categoria']);
$model->Registrar($alm);
header('Location: index.php');
break;
case 'eliminar':
$model->Eliminar($_REQUEST['acronimo']);
header('Location: index.php');
break;
case 'editar':
// Recupero los datos por el acronimo
// $obj_categoria es un objeto del tipo Categoria
$obj_categoria = $model->Obtener($_REQUEST['acronimo']);
break;
default:
// MENSAJE 404 PARA CUANDO LA ACCION NO ES VALIDA
header('HTTP/1.0: 404 Not Found');
die('<h1>404 Page Not Found</h1>');
}
}
?>
<!DOCTYPE html>
<html lang="es">
<head>
<title>Anexsoft</title>
<link rel="stylesheet" href="css/bootstrap.min.css">
<meta name="viewport" content="width=device-width, user-scalable=no">
</head>
<body style="padding:15px;">
<div class="table table-striped">
<div class="pure-u-1-12">
<form action="?action=<?php echo isset($obj_categoria) ? 'actualizar' : 'registrar'; ?>" method="POST" class="pure-form pure-form-stacked" style="margin-bottom:30px;">
<input type="hidden" name="acronimo" value="<?php echo isset($obj_categoria) ? $obj_categoria->__GET('acronimo') : ''; ?>" />
<table style="width:500px;">
<tr>
<th style="text-align:left;">Acronimo</th>
<td><input type="text" name="acronimo" value="<?php echo isset($obj_categoria) ? $obj_categoria->__GET('acronimo') : ''; ?>" style="width:100%;" required /></td>
</tr>
<tr>
<th style="text-align:left;">Categoria</th>
<td><input type="text" name="categoria" value="<?php echo isset($obj_categoria) ? $obj_categoria->__GET('categoria') : ''; ?>" style="width:100%;" required/></td>
<td colspan="2">
<button type="submit" class="btn btn-primary">Guardar</button>
</td>
</tr>
</table>
</form>
<table class="pure-table pure-table-horizontal">
<thead>
<tr>
<th style="text-align:left;">Acronimo</th>
<th style="text-align:left;">Categoria</th>
</tr>
</thead>
<?php foreach($model->Listar() as $r): ?>
<tr>
<td><?php echo $r->__GET('acronimo'); ?></td>
<td><?php echo $r->__GET('categoria'); ?></td>
<td>
<a href="?action=editar&acronimo=<?php echo $r->acronimo; ?>">Editar</a>
</td>
<td>
<a href="?action=eliminar&acronimo=<?php echo $r->acronimo; ?>">Eliminar</a>
</td>
</tr>
<?php endforeach; ?>
</table>
</div>
</div>
<script>js/jquery.js</script>
<script>js/bootstrap.min.js</script>
</body>
</html>
student.entity.php
<?php
class Categoria
{
private $acronimo;
private $categoria;
public function __GET($k){ return $this->$k; }
public function __SET($k, $v){ return $this->$k = $v; }
}
alumno.model.php
<?php
class CategoriaModel
{
private $pdo;
public function __CONSTRUCT()
{
try
{
$this->pdo = new PDO('mysql:host=localhost;dbname=deimos1', 'root', '');
$this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
catch(Exception $e)
{
die($e->getMessage());
}
}
public function Listar()
{
try
{
$result = array();
$stm = $this->pdo->prepare("SELECT * FROM categoria");
$stm->execute();
foreach($stm->fetchAll(PDO::FETCH_OBJ) as $r)
{
$alm = new Categoria();
$alm->__SET('acronimo', $r->acronimo);
$alm->__SET('categoria', $r->categoria);
$result[] = $alm;
}
return $result;
}
catch(Exception $e)
{
die($e->getMessage());
}
}
public function Obtener($acronimo)
{
try
{
$stm = $this->pdo->prepare("SELECT * FROM categoria WHERE acronimo = ?");
$stm->execute(array($acronimo));
$r = $stm->fetch(PDO::FETCH_OBJ);
$alm = new Categoria();
$alm->__SET('acronimo', $r->acronimo);
$alm->__SET('categoria', $r->categoria);
return $alm;
} catch (Exception $e)
{
die($e->getMessage());
}
}
public function Eliminar($acronimo)
{
try
{
$stm = $this->pdo
->prepare("DELETE FROM categoria WHERE acronimo = ?");
$stm->execute(array($acronimo));
} catch (Exception $e)
{
die($e->getMessage());
}
}
// ##############################################################################################
// CAMBIOS REALIZADOS
// - USO DE PARAMETROS NOMBRADOS EN EN METODO .execute()
// ##############################################################################################
public function Actualizar(Categoria $data)
{
try
{
$sql = "UPDATE categoria SET acronimo =:acronimo, categoria =:categoria WHERE acronimo=acronimo";
return $this->pdo->prepare($sql)
->execute(
array(
':acronimo' => $data->__GET('acronimo'),
':categoria' => $data->__GET('categoria')
)
);
} catch (Exception $e)
{
die($e->getMessage());
}
}
// ##############################################################################################
public function Registrar(Categoria $data)
{
try
{
$sql = "INSERT INTO categoria (acronimo,categoria)
VALUES (?, ?)";
$this->pdo->prepare($sql)
->execute(
array(
$data->__GET('acronimo'),
$data->__GET('categoria')
)
);
} catch (Exception $e)
{
die($e->getMessage());
}
}
}