feat: referral_code

app/Models/User.php

@@ -3,6 +3,7 @@
 namespace App\Models;
 
 use App\Traits\HasUuid;
+use App\Traits\HasReferralCode;
 use DateTimeInterface;
 use EloquentFilter\Filterable;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
@@ -13,7 +14,7 @@
 use Illuminate\Support\Str;
 class User extends Authenticatable
 {
-    use HasApiTokens, HasFactory, Notifiable, HasUuid, Filterable;
+    use HasApiTokens, HasFactory, Notifiable, HasUuid, HasReferralCode, Filterable;
 
     const GENDERS = [
         'male' => 1,
@@ -61,6 +62,16 @@ public function otpTokens()
         return $this->hasMany(OtpTokens::class);
     }
 
+    public function referrer()
+    {
+        return $this->belongsTo(User::class, 'referred_by');
+    }
+
+    public function referrals()
+    {
+        return $this->hasMany(User::class, 'referred_by');
+    }
+
     public function transactions()
     {
         return $this->hasMany(Transaction::class);