Symfony2: how to show valuables from different tables? - php

Question

I'm trying to create an website in Symfony in which I have a database with Movies. This how it looks like:
/**
* Game entity.
*/
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Class Movie.
*
* #ORM\Table(name="movies")
* #ORM\Entity(repositoryClass="AppBundle\Repository\Movie")
*/
class Movie
{
/**
* Id.
*
* #ORM\Id
* #ORM\Column(
* type="integer",
* nullable=false,
* options={
* "unsigned" = true
* }
* )
* #ORM\GeneratedValue(strategy="IDENTITY")
*
* #var integer $id
*/
private $id;
/**
* Title.
*
* #ORM\Column(
* name="title",
* type="string",
* length=255,
* nullable=false
* )
*
* #var string $title
*/
private $title;
/**
* Notes.
*
* #ORM\Column(
* name="notes",
* type="text",
* nullable=true
* )
*
* #var string $notes
*/
private $notes;
/**
* Genres array
*
* #ORM\ManyToOne(targetEntity="Genre")
* #ORM\JoinColumn(name="genre_id", referencedColumnName="id")
* )
*
* #var \Doctrine\Common\Collections\ArrayCollection $genres
*/
protected $genres;
/**
* Constructor.
*/
public function __construct()
{
$this->tags = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Get id.
*
* #return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set id.
*
* #param integer $id
*/
public function setId($id)
{
$this->id = $id;
}
/**
* Set title.
*
* #param string $title
*/
public function setTitle($title)
{
$this->title = $title;
}
/**
* Get title.
*
* #return string
*/
public function getTitle()
{
return $this->title;
}
/**
* Set notes.
*
* #param string $notes
*/
public function setNotes($notes)
{
$this->notes = $notes;
}
/**
* Get notes.
*
* #return string
*/
public function getNotes()
{
return $this->notes;
}
/**
* Add genres
*
* #param \AppBundle\Entity\Genre $genres
* #return Movie
*/
public function addGenre(\AppBundle\Entity\Genre $genres)
{
$this->genres[] = $genres;
return $this;
}
/**
* Set genres
*
* #param \AppBundle\Entity\Genre $genres
* #return Movie
*/
public function setGenres(\AppBundle\Entity\Genre $genres = null)
{
$this->genres = $genres;
return $this;
}
/**
* Get genres
*
* #return \AppBundle\Entity\Genre
*/
public function getGenres()
{
return $this->genres;
}
}
And each Movie has a Genre:
/**
* Genere entity.
*
*/
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Class Genere.
*
* #ORM\Table(name="genere")
* #ORM\Entity(repositoryClass="AppBundle\Repository\Genere")
*/
class Genere
{
/**
* Id.
*
* #ORM\Id
* #ORM\Column(
* type="integer",
* nullable=false,
* options={
* "unsigned" = true
* }
* )
* #ORM\GeneratedValue(strategy="IDENTITY")
*
* #var integer $id
*/
private $id;
/**
* Name.
*
* #ORM\Column(
* name="name",
* type="string",
* length=128,
* nullable=false
* )
*
* #var string $name
*/
private $name;
/**
* Get Id.
*
* #return integer Result
*/
public function getId()
{
return $this->id;
}
public function setId($id)
{
$this->id = $id;
}
/**
* Set name.
*
* #param string $name Name
*/
public function setName($name)
{
$this->name = $name;
}
/**
* Get name.
*
* #return string Name
*/
public function getName()
{
return $this->name;
}
Now, my question is: how can I show a genre in movies list? I know how to make a list of movies, but no idea what to use to show genres.
My MovieController currently looks like this:
/**
* List action.
*
* #Route("/movie-list", name="movies-list")
* #Route("/movies-list/")
*
* #throws NotFoundHttpException
* #return Response A Response instance
*/
public function listAction()
{
$movies = $this->findByStatId(2);
if (!$movies) {
throw new NotFoundHttpException('Movies not found!');
}
return $this->templating->renderResponse(
'AppBundle:Movie:index.html.twig',
array('movies' => $movies)
);
}
What should I add to be able to show genres? Where? Any advises would be welcome.

Answer 1

You already have genres along with $movies variable. You just have to call access genres like this:
{% for genre in movies.genres %}
{# Access each genre variable here #}
{% endfor %}
movies is a object passed to twig file and it has property genres to access related genres in it.
To access genres on controller:
<?php
$genres=$movies->getGenres();
// loop through $genres.
?>
getGenres() will return collection of genres.

Answer 2

You have a mistake in your Genre class. At least in your example, you call it Genere instead of Genre. Second, if a movie should have more than one genre then you should make a many-to-many association, as multiple movies can have the same genre. If a movie can only have one genre, then you have to switch the owning side with Genre (Movie should have Genre (singular), Genre should have Movies (plural))