added function for trigger 2

app/Models/User.php

@@ -9,6 +9,7 @@ use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 use Laravel\Sanctum\HasApiTokens;
 use Illuminate\Support\Facades\Hash;
+use Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException;
 use Tymon\JWTAuth\Contracts\JWTSubject;
 
 
@@ -80,4 +81,16 @@ class User extends Authenticatable implements JWTSubject
     public function setPasswordAttribute($value){
         $this->attributes['password'] = Hash::make($value);
     }
+
+    public static function isMobileTaken(?string $mobile, ?int $exceptId = null): bool
+    {
+        return Customer::isMobileTakenOnTable(self::class, $mobile, $exceptId);
+    }
+
+    public static function assertMobileUnique(?string $mobile, ?int $exceptId = null): void
+    {
+        if (self::isMobileTaken($mobile, $exceptId)) {
+            throw new UnprocessableEntityHttpException('این شماره موبایل قبلاً ثبت شده است');
+        }
+    }
 }