fix payement link and gallery image

apps/payments/access.py

@@ -1,10 +1,10 @@
 """A payment link never authenticates a user or grants access to their whole account."""
 import hashlib
-import secrets
 import uuid
 from datetime import timedelta
 
 from django.conf import settings
+from django.db import IntegrityError, transaction
 from django.db.models import Q
 from django.contrib.auth.views import redirect_to_login
 from django.core.exceptions import PermissionDenied
@@ -13,6 +13,7 @@ from django.shortcuts import get_object_or_404, render
 from django.urls import reverse
 from django.utils import timezone
 from apps.core.session_access import grant_scoped_session_access
+from apps.accounts.models import TicketMagicLink
 
 from . import policies
 from .models import PaymentAccessLink, PaymentNotice
@@ -30,11 +31,17 @@ def issue_payment_link(*, notice=None, receipt=None):
         raise ValueError('Payment link requires a notice or receipt')
     if receipt is not None:
         notice = receipt.notice
-    token = secrets.token_urlsafe(32)
-    link = PaymentAccessLink.objects.create(customer=target.customer, notice=notice, receipt=receipt,
-        token_hash=token_digest(token),
-        expires_at=timezone.now() + timedelta(days=settings.PAYMENT_LINK_TTL_DAYS))
-    return link, settings.PUBLIC_BASE_URL + reverse('payments:open_link', args=[token])
+    for attempt in range(5):
+        token = TicketMagicLink.generate_secure_token(10)
+        try:
+            with transaction.atomic():
+                link = PaymentAccessLink.objects.create(customer=target.customer, notice=notice, receipt=receipt,
+                    token_hash=token_digest(token),
+                    expires_at=timezone.now() + timedelta(days=settings.PAYMENT_LINK_TTL_DAYS))
+            return link, settings.PUBLIC_BASE_URL.rstrip('/') + reverse('payment_short_link', args=[token])
+        except IntegrityError:
+            if attempt == 4:
+                raise RuntimeError('عدم موفقیت در تولید لینک یکتای پرداخت.')
 
 
 def active_links():