initial geodjango implementation

parks/migrations/0006_alter_historicalpark_latitude_and_more.py

@@ -1,7 +1,6 @@
 # Generated by Django 5.1.2 on 2024-11-03 19:59
 
 import django.core.validators
-import parks.models
 from decimal import Decimal
 from django.db import migrations, models
 
@@ -25,7 +24,6 @@ class Migration(migrations.Migration):
                 validators=[
                     django.core.validators.MinValueValidator(Decimal("-90")),
                     django.core.validators.MaxValueValidator(Decimal("90")),
-                    parks.models.validate_latitude_digits,
                 ],
             ),
         ),
@@ -41,7 +39,6 @@ class Migration(migrations.Migration):
                 validators=[
                     django.core.validators.MinValueValidator(Decimal("-180")),
                     django.core.validators.MaxValueValidator(Decimal("180")),
-                    parks.models.validate_longitude_digits,
                 ],
             ),
         ),
@@ -57,7 +54,6 @@ class Migration(migrations.Migration):
                 validators=[
                     django.core.validators.MinValueValidator(Decimal("-90")),
                     django.core.validators.MaxValueValidator(Decimal("90")),
-                    parks.models.validate_latitude_digits,
                 ],
             ),
         ),
@@ -73,7 +69,6 @@ class Migration(migrations.Migration):
                 validators=[
                     django.core.validators.MinValueValidator(Decimal("-180")),
                     django.core.validators.MaxValueValidator(Decimal("180")),
-                    parks.models.validate_longitude_digits,
                 ],
             ),
         ),

parks/migrations/0008_historicalpark_historicalparkarea.py

@@ -3,7 +3,6 @@
 import django.core.validators
 import django.db.models.deletion
 import history_tracking.mixins
-import parks.models
 import simple_history.models
 from decimal import Decimal
 from django.conf import settings
@@ -57,7 +56,6 @@ class Migration(migrations.Migration):
                         validators=[
                             django.core.validators.MinValueValidator(Decimal("-90")),
                             django.core.validators.MaxValueValidator(Decimal("90")),
-                            parks.models.validate_latitude_digits,
                         ],
                     ),
                 ),
@@ -72,7 +70,6 @@ class Migration(migrations.Migration):
                         validators=[
                             django.core.validators.MinValueValidator(Decimal("-180")),
                             django.core.validators.MaxValueValidator(Decimal("180")),
-                            parks.models.validate_longitude_digits,
                         ],
                     ),
                 ),

parks/migrations/0009_migrate_to_location_model.py

@@ -0,0 +1,83 @@
+# Generated by Django 5.1.2 on 2024-11-04 22:21
+
+from django.db import migrations, transaction
+from django.contrib.contenttypes.models import ContentType
+
+def forwards_func(apps, schema_editor):
+    """Move park location data to Location model"""
+    Park = apps.get_model("parks", "Park")
+    Location = apps.get_model("location", "Location")
+    ContentType = apps.get_model("contenttypes", "ContentType")
+    db_alias = schema_editor.connection.alias
+
+    # Get content type for Park model
+    park_content_type = ContentType.objects.db_manager(db_alias).get(
+        app_label='parks',
+        model='park'
+    )
+
+    # Move location data for each park
+    with transaction.atomic():
+        for park in Park.objects.using(db_alias).all():
+            # Only create Location if park has coordinate data
+            if park.latitude is not None and park.longitude is not None:
+                Location.objects.using(db_alias).create(
+                    content_type=park_content_type,
+                    object_id=park.id,
+                    name=park.name,
+                    location_type='park',
+                    latitude=park.latitude,
+                    longitude=park.longitude,
+                    street_address=park.street_address,
+                    city=park.city,
+                    state=park.state,
+                    country=park.country,
+                    postal_code=park.postal_code
+                )
+
+def reverse_func(apps, schema_editor):
+    """Move location data back to Park model"""
+    Park = apps.get_model("parks", "Park")
+    Location = apps.get_model("location", "Location")
+    ContentType = apps.get_model("contenttypes", "ContentType")
+    db_alias = schema_editor.connection.alias
+
+    # Get content type for Park model
+    park_content_type = ContentType.objects.db_manager(db_alias).get(
+        app_label='parks',
+        model='park'
+    )
+
+    # Move location data back to each park
+    with transaction.atomic():
+        locations = Location.objects.using(db_alias).filter(
+            content_type=park_content_type
+        )
+        for location in locations:
+            try:
+                park = Park.objects.using(db_alias).get(id=location.object_id)
+                park.latitude = location.latitude
+                park.longitude = location.longitude
+                park.street_address = location.street_address
+                park.city = location.city
+                park.state = location.state
+                park.country = location.country
+                park.postal_code = location.postal_code
+                park.save()
+            except Park.DoesNotExist:
+                continue
+
+        # Delete all park locations
+        locations.delete()
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('parks', '0008_historicalpark_historicalparkarea'),
+        ('location', '0005_convert_coordinates_to_points'),
+        ('contenttypes', '0002_remove_content_type_name'),
+    ]
+
+    operations = [
+        migrations.RunPython(forwards_func, reverse_func, atomic=True),
+    ]

parks/migrations/0010_remove_legacy_location_fields.py

@@ -0,0 +1,69 @@
+# Generated by Django 5.1.2 on 2024-11-04 22:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("parks", "0009_migrate_to_location_model"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="historicalpark",
+            name="latitude",
+        ),
+        migrations.RemoveField(
+            model_name="historicalpark",
+            name="longitude",
+        ),
+        migrations.RemoveField(
+            model_name="historicalpark",
+            name="street_address",
+        ),
+        migrations.RemoveField(
+            model_name="historicalpark",
+            name="city",
+        ),
+        migrations.RemoveField(
+            model_name="historicalpark",
+            name="state",
+        ),
+        migrations.RemoveField(
+            model_name="historicalpark",
+            name="country",
+        ),
+        migrations.RemoveField(
+            model_name="historicalpark",
+            name="postal_code",
+        ),
+        migrations.RemoveField(
+            model_name="park",
+            name="latitude",
+        ),
+        migrations.RemoveField(
+            model_name="park",
+            name="longitude",
+        ),
+        migrations.RemoveField(
+            model_name="park",
+            name="street_address",
+        ),
+        migrations.RemoveField(
+            model_name="park",
+            name="city",
+        ),
+        migrations.RemoveField(
+            model_name="park",
+            name="state",
+        ),
+        migrations.RemoveField(
+            model_name="park",
+            name="country",
+        ),
+        migrations.RemoveField(
+            model_name="park",
+            name="postal_code",
+        ),
+    ]