Failed to set up a ManyToMany - php

Question

I want to be able to select a school (that has its own entity) while creating a mission (also has its entity)
Since a school can have several missions, and you can select several schools at the mission's creation, I used a ManyToMany.
The problem is that after creating this "ManyToMany", generating the entities and updating my schema, Symfony created a table, but left it totally empty, without the two columns that I asked for. I'm not really used to Symfony nor to the ManyToMany system, so I might have done some mistake without noticing it, still I find this weird.
Here's the interesting part of my ecole (school) entity:
class Ecole{
// ...
/**
* #ORM\ManyToMany(targetEntity="MissionBundle\Entity\Mission", mappedBy="ecolesDispo")
*/
protected $missionsDispos;
// ...
/**
* Add missionsDispo
*
* #param \MissionBundle\Entity\Mission $missionsDispo
*
* #return Ecole
*/
public function addMissionsDispo(\MissionBundle\Entity\Mission $missionsDispo)
{
$this->missionsDispos[] = $missionsDispo;
return $this;
}
/**
* Remove missionsDispo
*
* #param \MissionBundle\Entity\Mission $missionsDispo
*/
public function removeMissionsDispo(\MissionBundle\Entity\Mission $missionsDispo)
{
$this->missionsDispos->removeElement($missionsDispo);
}
/**
* Get missionsDispos
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getMissionsDispos()
{
return $this->missionsDispos;
}
And here is the interesting part of my mission entity:
/**
* #ORM\ManyToMany(targetEntity="EcoleBundle\Entity\Ecole", inversedBy="missionsDispo")
* #ORM\JoinTable(name="Mission2Ecole",
* joinColumns={#ORM\JoinColumn(name="em_id", referencedColumnName="id")},
* inverseJoinColumns={#ORM\JoinColumn(name="me_id", referencedColumnName="id")}
* )
*/
protected $ecolesDispo;
// ...
/**
* Constructor
*/
public function __construct()
{
$this->ecolesDispo = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Add ecolesDispo
*
* #param \EcoleBundle\Entity\Ecole $ecolesDispo
*
* #return Mission
*/
public function addEcolesDispo(\EcoleBundle\Entity\Ecole $ecolesDispo)
{
$this->ecolesDispo[] = $ecolesDispo;
return $this;
}
/**
* Remove ecolesDispo
*
* #param \EcoleBundle\Entity\Ecole $ecolesDispo
*/
public function removeEcolesDispo(\EcoleBundle\Entity\Ecole $ecolesDispo)
{
$this->ecolesDispo->removeElement($ecolesDispo);
}
/**
* Get ecolesDispo
*
* #return \Doctrine\Common\Collections\Collection
*/
public function getEcolesDispo()
{
return $this->ecolesDispo;
}
After all this was created, I was supposed to get a multi selector with the list of all the schools saved in the database (I already added it to the missionType file), but I get absolutely nothing.
I don't really know if I inverted the annotations, or if the "joinTable" part is correct, but I'm completely lost here.
Does anyone have an idea?
Thank you in advance

Answer 1

Just wrong typo "s"? inversedBy="missionsDispo" >>> inversedBy="missionsDispos"
PS. Official doc here
http://doctrine-orm.readthedocs.io/projects/doctrine-orm/en/latest/reference/association-mapping.html#many-to-many-bidirectional