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.

property_owners/migrations/0001_initial.py

@@ -0,0 +1,111 @@
+# Generated by Django 5.1.4 on 2025-07-04 14:50
+
+import django.db.models.deletion
+import pgtrigger.compiler
+import pgtrigger.migrations
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ("pghistory", "0006_delete_aggregateevent"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="PropertyOwner",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+                ("updated_at", models.DateTimeField(auto_now=True)),
+                ("name", models.CharField(max_length=255)),
+                ("slug", models.SlugField(max_length=255, unique=True)),
+                ("description", models.TextField(blank=True)),
+                ("website", models.URLField(blank=True)),
+            ],
+            options={
+                "verbose_name": "Property Owner",
+                "verbose_name_plural": "Property Owners",
+                "ordering": ["name"],
+            },
+        ),
+        migrations.CreateModel(
+            name="PropertyOwnerEvent",
+            fields=[
+                ("pgh_id", models.AutoField(primary_key=True, serialize=False)),
+                ("pgh_created_at", models.DateTimeField(auto_now_add=True)),
+                ("pgh_label", models.TextField(help_text="The event label.")),
+                ("id", models.BigIntegerField()),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+                ("updated_at", models.DateTimeField(auto_now=True)),
+                ("name", models.CharField(max_length=255)),
+                ("slug", models.SlugField(db_index=False, max_length=255)),
+                ("description", models.TextField(blank=True)),
+                ("website", models.URLField(blank=True)),
+            ],
+            options={
+                "abstract": False,
+            },
+        ),
+        pgtrigger.migrations.AddTrigger(
+            model_name="propertyowner",
+            trigger=pgtrigger.compiler.Trigger(
+                name="insert_insert",
+                sql=pgtrigger.compiler.UpsertTriggerSql(
+                    func='INSERT INTO "property_owners_propertyownerevent" ("created_at", "description", "id", "name", "pgh_context_id", "pgh_created_at", "pgh_label", "pgh_obj_id", "slug", "updated_at", "website") VALUES (NEW."created_at", NEW."description", NEW."id", NEW."name", _pgh_attach_context(), NOW(), \'insert\', NEW."id", NEW."slug", NEW."updated_at", NEW."website"); RETURN NULL;',
+                    hash="[AWS-SECRET-REMOVED]",
+                    operation="INSERT",
+                    pgid="pgtrigger_insert_insert_a87b7",
+                    table="property_owners_propertyowner",
+                    when="AFTER",
+                ),
+            ),
+        ),
+        pgtrigger.migrations.AddTrigger(
+            model_name="propertyowner",
+            trigger=pgtrigger.compiler.Trigger(
+                name="update_update",
+                sql=pgtrigger.compiler.UpsertTriggerSql(
+                    condition="WHEN (OLD.* IS DISTINCT FROM NEW.*)",
+                    func='INSERT INTO "property_owners_propertyownerevent" ("created_at", "description", "id", "name", "pgh_context_id", "pgh_created_at", "pgh_label", "pgh_obj_id", "slug", "updated_at", "website") VALUES (NEW."created_at", NEW."description", NEW."id", NEW."name", _pgh_attach_context(), NOW(), \'update\', NEW."id", NEW."slug", NEW."updated_at", NEW."website"); RETURN NULL;',
+                    hash="[AWS-SECRET-REMOVED]",
+                    operation="UPDATE",
+                    pgid="pgtrigger_update_update_9dfca",
+                    table="property_owners_propertyowner",
+                    when="AFTER",
+                ),
+            ),
+        ),
+        migrations.AddField(
+            model_name="propertyownerevent",
+            name="pgh_context",
+            field=models.ForeignKey(
+                db_constraint=False,
+                null=True,
+                on_delete=django.db.models.deletion.DO_NOTHING,
+                related_name="+",
+                to="pghistory.context",
+            ),
+        ),
+        migrations.AddField(
+            model_name="propertyownerevent",
+            name="pgh_obj",
+            field=models.ForeignKey(
+                db_constraint=False,
+                on_delete=django.db.models.deletion.DO_NOTHING,
+                related_name="events",
+                to="property_owners.propertyowner",
+            ),
+        ),
+    ]