Add new methods to RegroupmentRepository and fix association

Regroupment/Center

src/Bundle/ChillMainBundle/Entity/Regroupment.php

@@ -22,11 +22,12 @@ use Doctrine\ORM\Mapping as ORM;
 class Regroupment
 {
     /**
-     * @var Center
      * @ORM\ManyToMany(
-     *     targetEntity=Center::class
+     *     targetEntity=Center::class,
+     *     inversedBy="regroupments"
      * )
      * @ORM\Id
+     * @var Collection<Center>
      */
     private Collection $centers;
 
@@ -52,6 +53,26 @@ class Regroupment
         $this->centers = new ArrayCollection();
     }
 
+    public function addCenter(Center $center): self
+    {
+        if (!$this->centers->contains($center)) {
+            $this->centers->add($center);
+            $center->getRegroupments()->add($this);
+        }
+
+        return $this;
+    }
+
+    public function removeCenter(Center $center): self
+    {
+        if ($this->centers->contains($center)) {
+            $this->centers->removeElement($center);
+            $center->getRegroupments()->removeElement($this);
+        }
+
+        return $this;
+    }
+
     public function getCenters(): Collection
     {
         return $this->centers;