Refactor registers to flat membership model and move apps to root

src/apps/backups/services.py

@@ -28,7 +28,7 @@ from apps.parsers.models import (
     ManufacturerRecord,
     ProcurementRecord,
 )
-from apps.registers.models import (
+from registers.models import (
     Organization,
     Register,
     RegisterUpload,
@@ -37,7 +37,7 @@ from apps.registers.models import (
 from cryptography.hazmat.primitives.ciphers.aead import AESGCM
 from django.conf import settings
 from django.db import IntegrityError, transaction
-from django.db.models import Model, Q
+from django.db.models import Model
 from django.utils import timezone
 
 
@@ -127,8 +127,7 @@ class BackupExportService:
     @classmethod
     def _get_active_organization_ids(cls, actual_date: date) -> list[int]:
         return list(
-            RegistryMembershipPeriod.objects.filter(started_at__lte=actual_date)
-            .filter(Q(ended_at__isnull=True) | Q(ended_at__gt=actual_date))
+            RegistryMembershipPeriod.objects.all()
             .values_list("organization_id", flat=True)
             .distinct()
         )
@@ -140,16 +139,17 @@ class BackupExportService:
         actual_date: date,
         active_org_ids: list[int],
     ) -> dict:
-        active_periods = RegistryMembershipPeriod.objects.filter(
+        active_memberships = RegistryMembershipPeriod.objects.filter(
             organization_id__in=active_org_ids,
-            started_at__lte=actual_date,
-        ).filter(Q(ended_at__isnull=True) | Q(ended_at__gt=actual_date))
+        )
 
         register_ids = list(
-            active_periods.values_list("registry_id", flat=True).distinct()
+            active_memberships.values_list("registry_id", flat=True).distinct()
         )
         upload_ids = list(
-            active_periods.values_list("started_by_upload_id", flat=True).distinct()
+            RegisterUpload.objects.filter(registry_id__in=register_ids)
+            .values_list("id", flat=True)
+            .distinct()
         )
 
         reports_qs = FinancialReport.objects.filter(
@@ -165,10 +165,9 @@ class BackupExportService:
             RegisterUpload: RegisterUpload.objects.filter(id__in=upload_ids).order_by(
                 "id"
             ),
-            RegistryMembershipPeriod: active_periods.order_by(
+            RegistryMembershipPeriod: active_memberships.order_by(
                 "registry_id",
                 "organization_id",
-                "started_at",
             ),
             IndustrialCertificateRecord: IndustrialCertificateRecord.objects.filter(
                 registry_organization_id__in=active_org_ids