Upload photo authorizations

apps/registration/models.py

@@ -2,6 +2,7 @@ from corres2math.tokens import email_validation_token
 from django.contrib.sites.models import Site
 from django.db import models
 from django.template import loader
+from django.utils.crypto import get_random_string
 from django.utils.encoding import force_bytes
 from django.utils.http import urlsafe_base64_encode
 from django.utils.translation import gettext_lazy as _
@@ -66,6 +67,10 @@ class Registration(PolymorphicModel):
         verbose_name_plural = _("registrations")
 
 
+def get_random_filename(instance, filename):
+    return get_random_string(64)
+
+
 class StudentRegistration(Registration):
     team = models.ForeignKey(
         "participation.Team",
@@ -90,6 +95,14 @@ class StudentRegistration(Registration):
         verbose_name=_("school"),
     )
 
+    # FIXME Fix permission access, mime type
+    photo_authorization = models.FileField(
+        verbose_name=_("photo authorization"),
+        upload_to=get_random_filename,
+        blank=True,
+        default="",
+    )
+
     @property
     def type(self):
         return _("student")