1-33

Symfony2 – Franz Jordán 2011
a new property with mapping metadata to Product and run this task again, it will generate the
"alter table" statement needed to add that new column to the existing products table.
An even better way to take advantage of this functionality is via migrations, which allow you to
generate these SQL statements and store them in migration classes that can be run
systematically on your production server in order to track and migrate your database schema
safely and reliably.
Your database now has a fully-functional product table with columns that match the metadata
you've specified.
Persisting Objects to the Database
Now that you have a mapped Product entity and corresponding product table, you're ready to
persist data to the database. From inside a controller, this is pretty easy. Add the following
method to the DefaultController of the bundle:
1
2
3
4
// src/Acme/StoreBundle/Controller/DefaultController.php
use Acme\StoreBundle\Entity\Product;
use Symfony\Component\HttpFoundation\Response;
// ...
5
6
7
8
9
10
11
public function createAction()
{
$product = new Product();
$product->setName('A Foo Bar');
$product->setPrice('19.99');
$product->setDescription('Lorem ipsum dolor');
12
13
14
15
$em = $this->getDoctrine()->getEntityManager();
$em->persist($product);
$em->flush();
16
87