migrations and models adjusted

app/Models/Room.php

@@ -6,6 +6,7 @@ use Illuminate\Database\Eloquent\Attributes\Fillable;
 use Illuminate\Database\Eloquent\Concerns\HasUuids;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\HasMany;
+use Override;
 
 class Room extends Model
 {
@@ -29,10 +30,38 @@ class Room extends Model
         ];
     }
 
+    protected static function booted()
+    {
+        static::creating(function (Room $room) {
+            $room->join_code ??= static::generateJoinCode();
+        });
+    }
+
+    private static function generateJoinCode(): string 
+    {
+        $alphabet = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789';
+
+        do {
+            $code = '';
+
+            for($i = 0; $i < 6; $i++) {
+                $code .= $alphabet[random_int(0,strlen($alphabet)-1)];
+            }
+        } while (static::where('join_code', $code)->exists());
+
+        return $code;
+
+    }
+
 
     public function players(): HasMany
     {
         return $this->hasMany(Player::class);
 
     }
+
+    public function vote(): HasMany
+    {
+        return $this->hasMany(Vote::class);
+    }
 }