How annotation #groups for the sluggable column - php

Question

I'm working in symfony 3.3:
I need to add the #Groups annotation to the slug field (created using ORMBehaviors\Sluggable\Sluggable) so I can pass this field through other entities that I will specify in the Groups.
How can I do this?
this is the entity 'foo':
/**
* #var int
*
* #ORM\Id
* #ORM\GeneratedValue
* #ORM\Column(type="integer")
*
* #Groups({"advertisingSpace"})
*/
private $id;
/**
* #var string
*
* #ORM\Column(type="string", length=4)
*
* #Groups({"advertisingSpace"})
*/
private $code;
/**
* #var string
*
* #ORM\Column(type="string", length=255)
*
* #Groups({"advertisingSpace"})
*/
private $description;
/**
* #Vich\UploadableField(mapping="advertisingspacecategory_icon", fileNameProperty="icon")
*
* #var File
*/
private $iconFile;
/**
* #var string
*
* #ORM\Column(type="string", length=255)
*
* #Groups({"advertisingSpace"})
*/
private $icon;
/**
* #var array
*
* #ORM\OneToMany(
* targetEntity="AppBundle\Entity\AdvertisingSpace",
* mappedBy="category"
* )
*/
private $advertisingSpaces;
/**
* #return int
*/
public function getId()
{
return $this->id;
}
/**
* #return string
*/
public function getIcon()
{
return $this->icon;
}
/**
* #param string $icon
*
* #return AdvertisingSpaceCategory
*/
public function setIcon($icon)
{
$this->icon = $icon;
return $this;
}
/**
* #param File|\Symfony\Component\HttpFoundation\File\UploadedFile $iconFile
*
* #return AdvertisingSpaceCategory
*/
public function setIconFile(File $iconFile = null)
{
$this->iconFile = $iconFile;
if ($iconFile) {
$this->updatedAt = new \DateTimeImmutable();
}
return $this;
}
/**
* #return File|null
*/
public function getIconFile()
{
return $this->iconFile;
}
/**
* #param int $id
*
* #return AdvertisingSpaceCategory
*/
public function setId($id)
{
$this->id = $id;
return $this;
}
/**
* #return string
*/
public function getCode()
{
return $this->code;
}
/**
* #param string $code
*
* #return AdvertisingSpaceCategory
*/
public function setCode($code)
{
$this->code = $code;
return $this;
}
/**
* #return array
*/
public function getAdvertisingSpaces()
{
return $this->advertisingSpaces;
}
/**
* #param array $advertisingSpaces
*
* #return AdvertisingSpaceCategory
*/
public function setAdvertisingSpaces($advertisingSpaces)
{
$this->advertisingSpaces = $advertisingSpaces;
return $this;
}
/**
* #return string
*/
public function getDescription()
{
return $this->description;
}
/**
* #param string $description
*
* #return $this
*/
public function setDescription($description)
{
$this->description = $description;
return $this;
}
/**
* #return array
*/
public function getSluggableFields()
{
return [ 'slug' ];
}
/**
* #param string $values
*
* #return string
*/
public function generateSlugValue($values)
{
return implode('-', $values);
}
not having the private slug declaration as I can attribute the #groups annotation to?

Answer 1

You should install the JMS Serializer Bundle and use the #VirtualProperty annotation on your own getSlug() method like the following
/**
* #VirtualProperty
* #Groups({"advertisingSpace"})
*/
public function getSlug()
{
return parent::getSlug();
}

Answer 2

I solved it anyway by creating a new string variable (Eg "SlugName"):
/**
* #var string
*
* #Groups({"advertisingSpace"})
*/
private $slugName;
where I inserted the Groups annotation and which returns the original 'slug' field from its getter:
/**
* # return string
*/
public function getSlugName(): string
{
return $this->slug;
}