Add operators and property owners functionality

- Implemented OperatorListView and OperatorDetailView for managing operators.
- Created corresponding templates for operator listing and detail views.
- Added PropertyOwnerListView and PropertyOwnerDetailView for managing property owners.
- Developed templates for property owner listing and detail views.
- Established relationships between parks and operators, and parks and property owners in the models.
- Created migrations to reflect the new relationships and fields in the database.
- Added admin interfaces for PropertyOwner management.
- Implemented tests for operators and property owners.

parks/migrations/0004_remove_park_insert_insert_remove_park_update_update_and_more.py

@@ -0,0 +1,111 @@
+# Generated by Django 5.1.4 on 2025-07-04 15:26
+
+import django.db.models.deletion
+import pgtrigger.compiler
+import pgtrigger.migrations
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("operators", "0001_initial"),
+        ("parks", "0003_alter_park_id_alter_parkarea_id_and_more"),
+        ("property_owners", "0001_initial"),
+    ]
+
+    operations = [
+        pgtrigger.migrations.RemoveTrigger(
+            model_name="park",
+            name="insert_insert",
+        ),
+        pgtrigger.migrations.RemoveTrigger(
+            model_name="park",
+            name="update_update",
+        ),
+        migrations.RemoveField(
+            model_name="park",
+            name="owner",
+        ),
+        migrations.RemoveField(
+            model_name="parkevent",
+            name="owner",
+        ),
+        migrations.AddField(
+            model_name="park",
+            name="operator",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                related_name="parks",
+                to="operators.operator",
+            ),
+        ),
+        migrations.AddField(
+            model_name="park",
+            name="property_owner",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                related_name="owned_parks",
+                to="property_owners.propertyowner",
+            ),
+        ),
+        migrations.AddField(
+            model_name="parkevent",
+            name="operator",
+            field=models.ForeignKey(
+                blank=True,
+                db_constraint=False,
+                null=True,
+                on_delete=django.db.models.deletion.DO_NOTHING,
+                related_name="+",
+                related_query_name="+",
+                to="operators.operator",
+            ),
+        ),
+        migrations.AddField(
+            model_name="parkevent",
+            name="property_owner",
+            field=models.ForeignKey(
+                blank=True,
+                db_constraint=False,
+                null=True,
+                on_delete=django.db.models.deletion.DO_NOTHING,
+                related_name="+",
+                related_query_name="+",
+                to="property_owners.propertyowner",
+            ),
+        ),
+        pgtrigger.migrations.AddTrigger(
+            model_name="park",
+            trigger=pgtrigger.compiler.Trigger(
+                name="insert_insert",
+                sql=pgtrigger.compiler.UpsertTriggerSql(
+                    func='INSERT INTO "parks_parkevent" ("average_rating", "closing_date", "coaster_count", "created_at", "description", "id", "name", "opening_date", "operating_season", "operator_id", "pgh_context_id", "pgh_created_at", "pgh_label", "pgh_obj_id", "property_owner_id", "ride_count", "size_acres", "slug", "status", "updated_at", "website") VALUES (NEW."average_rating", NEW."closing_date", NEW."coaster_count", NEW."created_at", NEW."description", NEW."id", NEW."name", NEW."opening_date", NEW."operating_season", NEW."operator_id", _pgh_attach_context(), NOW(), \'insert\', NEW."id", NEW."property_owner_id", NEW."ride_count", NEW."size_acres", NEW."slug", NEW."status", NEW."updated_at", NEW."website"); RETURN NULL;',
+                    hash="[AWS-SECRET-REMOVED]",
+                    operation="INSERT",
+                    pgid="pgtrigger_insert_insert_66883",
+                    table="parks_park",
+                    when="AFTER",
+                ),
+            ),
+        ),
+        pgtrigger.migrations.AddTrigger(
+            model_name="park",
+            trigger=pgtrigger.compiler.Trigger(
+                name="update_update",
+                sql=pgtrigger.compiler.UpsertTriggerSql(
+                    condition="WHEN (OLD.* IS DISTINCT FROM NEW.*)",
+                    func='INSERT INTO "parks_parkevent" ("average_rating", "closing_date", "coaster_count", "created_at", "description", "id", "name", "opening_date", "operating_season", "operator_id", "pgh_context_id", "pgh_created_at", "pgh_label", "pgh_obj_id", "property_owner_id", "ride_count", "size_acres", "slug", "status", "updated_at", "website") VALUES (NEW."average_rating", NEW."closing_date", NEW."coaster_count", NEW."created_at", NEW."description", NEW."id", NEW."name", NEW."opening_date", NEW."operating_season", NEW."operator_id", _pgh_attach_context(), NOW(), \'update\', NEW."id", NEW."property_owner_id", NEW."ride_count", NEW."size_acres", NEW."slug", NEW."status", NEW."updated_at", NEW."website"); RETURN NULL;',
+                    hash="[AWS-SECRET-REMOVED]",
+                    operation="UPDATE",
+                    pgid="pgtrigger_update_update_19f56",
+                    table="parks_park",
+                    when="AFTER",
+                ),
+            ),
+        ),
+    ]