Start on property keeping track of git db content

src/Entity/Snip.php

@@ -27,6 +27,9 @@ class Snip
     #[ORM\OneToMany(mappedBy: 'snip', targetEntity: SnipContent::class, orphanRemoval: true)]
     private Collection $snipContents;
 
+    #[ORM\Column(length: 255, nullable: true)]
+    private ?string $activeCommit = null;
+
     public function __construct()
     {
         $this->snipContents = new ArrayCollection();
@@ -95,4 +98,16 @@ class Snip
 
         return $this;
     }
+
+    public function getActiveCommit(): ?string
+    {
+        return $this->activeCommit;
+    }
+
+    public function setActiveCommit(?string $activeCommit): static
+    {
+        $this->activeCommit = $activeCommit;
+
+        return $this;
+    }
 }

src/Entity/SnipContent.php

@@ -7,6 +7,7 @@ use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\DBAL\Types\Types;
 use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Uid\Ulid;
 
 #[ORM\Entity(repositoryClass: SnipContentRepository::class)]
 class SnipContent
@@ -14,27 +15,27 @@ class SnipContent
     #[ORM\Id]
     #[ORM\GeneratedValue]
     #[ORM\Column]
-    private ?int $id = null;
+    private ?Ulid $id = null;
 
     #[ORM\ManyToOne(inversedBy: 'snipContents')]
     #[ORM\JoinColumn(nullable: false)]
     private ?Snip $snip = null;
 
-    #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'child')]
+    #[ORM\ManyToOne(targetEntity: self::class, inversedBy: 'children')]
     private ?self $parent = null;
 
     #[ORM\OneToMany(mappedBy: 'parent', targetEntity: self::class)]
-    private Collection $child;
+    private Collection $children;
 
     #[ORM\Column(type: Types::TEXT, nullable: true)]
     private ?string $text = null;
 
     public function __construct()
     {
-        $this->child = new ArrayCollection();
+        $this->children = new ArrayCollection();
     }
 
-    public function getId(): ?int
+    public function getId(): ?Ulid
     {
         return $this->id;
     }
@@ -66,15 +67,15 @@ class SnipContent
     /**
      * @return Collection<int, self>
      */
-    public function getChild(): Collection
+    public function getChildren(): Collection
     {
-        return $this->child;
+        return $this->children;
     }
 
     public function addChild(self $child): self
     {
-        if (!$this->child->contains($child)) {
-            $this->child->add($child);
+        if (!$this->children->contains($child)) {
+            $this->children->add($child);
             $child->setParent($this);
         }
 
@@ -83,7 +84,7 @@ class SnipContent
 
     public function removeChild(self $child): self
     {
-        if ($this->child->removeElement($child)) {
+        if ($this->children->removeElement($child)) {
             // set the owning side to null (unless already changed)
             if ($child->getParent() === $this) {
                 $child->setParent(null);

src/Service/SnipContent/SnipContentDB.php

@@ -5,17 +5,15 @@ namespace App\Service\SnipContent;
 use App\Entity\Snip;
 use App\Entity\SnipContent;
 use App\Entity\User;
-use App\Repository\SnipContentRepository;
+use Doctrine\ORM\EntityManagerInterface;
 
-class SnipContentDB implements SnipContentInterface
+readonly class SnipContentDB implements SnipContentInterface
 {
     public function __construct(
-        private readonly Snip                  $snip,
-        private readonly User                  $user,
-        private readonly SnipContentRepository $repo,
-    )
-    {
-    }
+        private Snip                   $snip,
+        private User                   $user,
+        private EntityManagerInterface $em,
+    ) {}
 
     public function update(string $snipContents): void
     {
@@ -27,7 +25,12 @@ class SnipContentDB implements SnipContentInterface
             $content->setParent($this->snip->getSnipContents()->last());
         }
 
-        $this->repo->save($content);
+        $this->em->persist($content);
+        $this->em->flush();
+        
+        $this->snip->setActiveCommit($content->getId());
+        $this->em->persist($this->snip);
+        $this->em->flush();
     }
 
     public function get(): string
@@ -44,14 +47,14 @@ class SnipContentDB implements SnipContentInterface
 
     public function setCommit(string $commit): void
     {
-        // return to previous history commit
-        // maybe store the current commit in the snip content
+        $this->snip->setActiveCommit($commit);
+        $this->em->persist($this->snip);
+        $this->em->flush();
     }
 
     public function getCommit(): string
     {
-        // return the current commit
-        return '';
+        return $this->snip->getActiveCommit();
     }
 
     public function delete(): void