Recently I have been looking into Symfony framework and I am working on a task where I need to upload a file using a form. Once the form has been submitted I need to insert the user input along with image name and path in database using Symfony framework strictly (not standard PHP), the upload process also need to consider if the image already exist, and if yes, then rename it so it does not get over-written. Although, the following code works, but I wanted to ask here if this is the right way to do it. (DefaultController.php)This is my controller in this the function createBlogAction() handles the form submission, if the form is valid this functions calls another function which resides in Entity/Post.php to upload the filenamespace ClickTeck\BlogBundle\Controller;use Symfony\Bundle\FrameworkBundle\Controller\Controller;use ClickTeck\BlogBundle\Entity\Post;use ClickTeck\BlogBundle\Form\PostCreate;use Symfony\Component\HttpFoundation\Request;use Symfony\Component\HttpFoundation\Response;use Symfony\Component\HttpFoundation\File\UploadedFile;class DefaultController extends Controller{    public function createBlogAction(Request $request)    {        $post = new Post();        $form = $this->createForm(new PostCreate(), $post);        $form->handleRequest($request);        if ($form->isValid()) {            $em = $this->getDoctrine()->getManager();            $post->upload();            $post->setDate(date_create(date('Y-m-d H:i:s')));            $post->setAuthor('ClickTeck');            $em->persist($post);            $em->flush();            $this->get('session')->getFlashBag()->add(                'notice',                'Thank you!'            );        }        return $this->render('BlogBundle:Default:blog-create.html.twig', array(                'form' => $form->createView()            )        );}(Post.php)In this file the function upload() uploads the file, it is this function I need confirmation on if this is the right way/best practice to upload image using Symfony 2.5namespace ClickTeck\BlogBundle\Entity;use Doctrine\ORM\Mapping as ORM;use Symfony\Component\HttpFoundation\File\UploadedFile;/** * Post */class Post{    /**     * @var integer     */    private $id;    /**     * @var string     */    private $title;    /**     * @var string     */    private $description;    /**     * @var \DateTime     */    private $date;    /**     * @var string     */    private $category;    /**     * @var \DateTime     */    private $updated;    /**     * @var string     */    private $author;    /**     * @var string     */    private $image;    /**     * @var string     */    private $comments;    /**     * @var string     */    private $path;    /**     * Get id     *     * @return integer     */    public function getId()    {        return $this->id;    }    /**     * Set title     *     * @param string $title     * @return Post     */    public function setTitle($title)    {        $this->title = $title;        return $this;    }    /**     * Get title     *     * @return string     */    public function getTitle()    {        return $this->title;    }    /**     * Set description     *     * @param string $description     * @return Post     */    public function setDescription($description)    {        $this->description = $description;        return $this;    }    /**     * Get description     *     * @return string     */    public function getDescription()    {        return $this->description;    }    /**     * Set date     *     * @param \DateTime $date     * @return Post     */    public function setDate($date)    {        $this->date = $date;        return $this;    }    /**     * Get date     *     * @return \DateTime     */    public function getDate()    {        return $this->date;    }    /**     * Set category     *     * @param string $category     * @return Post     */    public function setCategory($category)    {        $this->category = $category;        return $this;    }    /**     * Get category     *     * @return string     */    public function getCategory()    {        return $this->category;    }    /**     * Set updated     *     * @param \DateTime $updated     * @return Post     */    public function setUpdated($updated)    {        $this->updated = $updated;        return $this;    }    /**     * Get updated     *     * @return \DateTime     */    public function getUpdated()    {        return $this->updated;    }    /**     * Set author     *     * @param string $author     * @return Post     */    public function setAuthor($author)    {        $this->author = $author;        return $this;    }    /**     * Get author     *     * @return string     */    public function getAuthor()    {        return $this->author;    }    /**     * Set image     *     * @param string $image     * @return Post     */    public function setImage(UploadedFile $image = null)    {        $this->image = $image;        return $this;    }    /**     * Get image     *     * @return string     */    public function getImage()    {        return $this->image;    }    /**     * Set comments     *     * @param string $comments     * @return Post     */    public function setComments($comments)    {        $this->comments = $comments;        return $this;    }    /**     * Get comments     *     * @return string     */    public function getComments()    {        return $this->comments;    }    public function getAbsolutePath()    {        return null === $this->path            ? null            : $this->getUploadRootDir() . '/' . $this->path;    }    public function getWebPath()    {        return null === $this->path            ? null            : $this->getUploadDir() . '/' . $this->path;    }    protected function getUploadRootDir()    {        // the absolute directory path where uploaded        // documents should be saved        return __DIR__ . '/../../../../web/' . $this->getUploadDir();    }    protected function getUploadDir()    {        // get rid of the __DIR__ so it doesn't screw up        // when displaying uploaded doc/image in the view.        return 'uploads/blogImages';    }    public function upload()    {        // the file property can be empty if the field is not required        if (null === $this->getImage()) {            return;        }        $dirpath = $this->getUploadRootDir();        $image = $this->getImage()->getClientOriginalName();        $ext = $this->getImage()->guessExtension();        $name = substr($image, 0, - strlen($ext));        $i = 1;        while(file_exists($dirpath . '/' .  $image)) {            $image = $name . '-' . $i .'.'. $ext;            $i++;        }        $this->getImage()->move($dirpath,$image);        $this->image = $image;        $this->path = $this->getUploadDir();        $this->file = null;    }}
Uploading a file using Symfony 2.5 strictly
php;symfony2