Refactor model imports and update admin classes to use pghistory for historical tracking; replace HistoricalModel with TrackedModel in relevant models

parks/models.py

@@ -5,17 +5,18 @@ from django.contrib.contenttypes.fields import GenericRelation
 from django.core.exceptions import ValidationError
 from decimal import Decimal, ROUND_DOWN, InvalidOperation
 from typing import Tuple, Optional, Any, TYPE_CHECKING
+import pghistory
 
 from companies.models import Company
 from media.models import Photo
-from history_tracking.models import HistoricalModel
+from history_tracking.models import TrackedModel
 from location.models import Location
 
 if TYPE_CHECKING:
     from rides.models import Ride
 
-
-class Park(HistoricalModel):
+@pghistory.track()
+class Park(TrackedModel):
     id: int  # Type hint for Django's automatic id field
     STATUS_CHOICES = [
         ("OPERATING", "Operating"),
@@ -101,17 +102,21 @@ class Park(HistoricalModel):
         try:
             return cls.objects.get(slug=slug), False
         except cls.DoesNotExist:
-            # Check historical slugs
-            history = cls.history.filter(slug=slug).order_by("-history_date").first()  # type: ignore[attr-defined]
+            # Check historical slugs using pghistory
+            history_model = cls.get_history_model()
+            history = history_model.objects.filter(
+                slug=slug
+            ).order_by('-pgh_created_at').first()
+            
             if history:
                 try:
-                    return cls.objects.get(pk=history.instance.pk), True
+                    return cls.objects.get(pk=history.pgh_obj_id), True
                 except cls.DoesNotExist as e:
                     raise cls.DoesNotExist("No park found with this slug") from e
             raise cls.DoesNotExist("No park found with this slug")
 
-
-class ParkArea(HistoricalModel):
+@pghistory.track()
+class ParkArea(TrackedModel):
     id: int  # Type hint for Django's automatic id field
     park = models.ForeignKey(Park, on_delete=models.CASCADE, related_name="areas")
     name = models.CharField(max_length=255)
@@ -148,11 +153,15 @@ class ParkArea(HistoricalModel):
         try:
             return cls.objects.get(slug=slug), False
         except cls.DoesNotExist:
-            # Check historical slugs
-            history = cls.history.filter(slug=slug).order_by("-history_date").first()  # type: ignore[attr-defined]
+            # Check historical slugs using pghistory
+            history_model = cls.get_history_model()
+            history = history_model.objects.filter(
+                slug=slug
+            ).order_by('-pgh_created_at').first()
+            
             if history:
                 try:
-                    return cls.objects.get(pk=history.instance.pk), True
+                    return cls.objects.get(pk=history.pgh_obj_id), True
                 except cls.DoesNotExist as e:
                     raise cls.DoesNotExist("No park area found with this slug") from e
             raise cls.DoesNotExist("No park area found with this slug")