feat: add certificate field

backend/backend_api/admin.py

@@ -44,10 +44,10 @@ class UserAdmin(admin.ModelAdmin):
     def send_record_links(self, request, obj):
         for user in obj:
             presentation_participation = PresentationParticipation.objects.filter(user=user,
-                                                                     status=PresentationParticipation.
-                                                                     StatusChoices.PURCHASED)
+                                                                                  status=PresentationParticipation.
+                                                                                  StatusChoices.PURCHASED)
             workshop_participation = WorkshopRegistration.objects.filter(user=user,
-                                                            status=WorkshopRegistration.StatusChoices.PURCHASED)
+                                                                         status=WorkshopRegistration.StatusChoices.PURCHASED)
             if len(presentation_participation) == 0 and len(workshop_participation) == 0:
                 continue
 
@@ -70,7 +70,6 @@ def send_record_links(self, request, obj):
                                           })).start()
 
 
-
 class DiscountAdmin(admin.ModelAdmin):
     list_display = ('__str__', 'is_active', 'discount_percent', 'capacity', 'remaining_capacity', 'expiration_date')
     readonly_fields = ('participants',)

backend/backend_api/migrations/0060_presentationparticipation_certificate_and_more.py

@@ -0,0 +1,50 @@
+# Generated by Django 4.2.4 on 2024-01-11 13:39
+
+from django.db import migrations, models
+import utils.image_uploader
+import uuid
+
+
+def set_default_uuid(apps, schema_editor):
+    workshop_participation = apps.get_model('backend_api', 'workshopregistration')
+    presentation_participation = apps.get_model('backend_api', 'presentationparticipation')
+    for instance in presentation_participation.objects.filter(certificate_uuid__isnull=True):
+        instance.certificate_uuid = uuid.uuid4()
+        instance.save()
+    for instance in workshop_participation.objects.filter(certificate_uuid__isnull=True):
+        instance.certificate_uuid = uuid.uuid4()
+        instance.save()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('backend_api', '0059_alter_discount_code_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='presentationparticipation',
+            name='certificate',
+            field=models.FileField(default=None, null=True, upload_to=utils.image_uploader.update_certificate_filename),
+        ),
+        migrations.AddField(
+            model_name='presentationparticipation',
+            name='certificate_uuid',
+            field=models.UUIDField(default=None, editable=False, unique=False, null=True),
+        ),
+        migrations.AddField(
+            model_name='workshopregistration',
+            name='certificate',
+            field=models.FileField(default=None, null=True, upload_to=utils.image_uploader.update_certificate_filename),
+        ),
+        migrations.AddField(
+            model_name='workshopregistration',
+            name='certificate_uuid',
+            field=models.UUIDField(default=None, editable=False, unique=False, null=True),
+        ),
+        migrations.RunPython(set_default_uuid),
+        migrations.AlterField('presentationparticipation', 'certificate_uuid',
+                              models.UUIDField(default=uuid.uuid4, editable=False, unique=True, null=False)),
+        migrations.AlterField('workshopregistration', 'certificate_uuid',
+                              models.UUIDField(default=uuid.uuid4, editable=False, unique=True, null=False)),
+    ]

backend/backend_api/models.py

@@ -20,6 +20,7 @@
 from aaiss_backend.settings import BASE_URL
 from backend_api import validators
 from backend_api.email import MailerThread
+from utils.image_uploader import update_certificate_filename
 from utils.random import create_random_string, random_password, random_discount_code
 from utils.renderers import new_detailed_response
 
@@ -292,6 +293,8 @@ class StatusChoices(models.IntegerChoices):
     user = models.ForeignKey(User, on_delete=models.CASCADE)
     status = models.IntegerField(choices=StatusChoices.choices, default=StatusChoices.AWAITING_PAYMENT)
     password = models.CharField(max_length=SMALL_MAX_LENGTH, default=random_password)
+    certificate_uuid = models.UUIDField(default=uuid.uuid4, editable=False, unique=True)
+    certificate = models.FileField(upload_to=update_certificate_filename, null=True, default=None)
 
     class Meta:
         unique_together = ('workshop', 'user',)
@@ -310,6 +313,8 @@ class StatusChoices(models.IntegerChoices):
     user = models.ForeignKey(User, on_delete=models.CASCADE)
     status = models.IntegerField(choices=StatusChoices.choices, default=StatusChoices.AWAITING_PAYMENT)
     password = models.CharField(max_length=SMALL_MAX_LENGTH, default=random_password)
+    certificate_uuid = models.UUIDField(default=uuid.uuid4, editable=False, unique=True)
+    certificate = models.FileField(upload_to=update_certificate_filename, null=True, default=None)
 
     class Meta:
         unique_together = ('presentation', 'user',)

backend/utils/image_uploader.py

@@ -0,0 +1,12 @@
+import os
+
+
+def update_certificate_filename(instance, filename):
+    path = "certificates/"
+    if hasattr(instance, "presentation"):
+        path += "presentation/"
+    else:
+        path += "workshop/"
+    format = instance.certificate_uuid
+    _, file_extension = os.path.splitext(filename)
+    return os.path.join(path, str(format) + file_extension)