feat: add PlantCardPhoto model

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plants/migrations/0007_plantcardphoto.py

@@ -0,0 +1,26 @@
+# Generated by Django 5.2.1 on 2026-05-28 19:37
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('plants', '0006_species_vpc_raw'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PlantCardPhoto',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('image', models.ImageField(upload_to='plants/cards/')),
+                ('uploaded_at', models.DateTimeField(auto_now_add=True)),
+                ('plant', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='card_photos', to='plants.plant')),
+            ],
+            options={
+                'ordering': ['uploaded_at'],
+            },
+        ),
+    ]

plants/models.py

@@ -82,6 +82,15 @@ class PlantPhoto(models.Model):
         ordering = ['uploaded_at']
 
 
+class PlantCardPhoto(models.Model):
+    plant = models.ForeignKey(Plant, on_delete=models.CASCADE, related_name='card_photos')
+    image = models.ImageField(upload_to='plants/cards/')
+    uploaded_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        ordering = ['uploaded_at']
+
+
 class PruningLog(models.Model):
     plant = models.ForeignKey(
         Plant, on_delete=models.CASCADE, related_name='pruning_logs',

plants/tests/test_models.py

@@ -53,3 +53,31 @@ def test_delete_species_nulls_plant_species():
     s.delete()
     p.refresh_from_db()
     assert p.species is None
+
+
+@pytest.mark.django_db
+def test_card_photo_belongs_to_plant():
+    from plants.models import PlantCardPhoto
+    plant = Plant.objects.create(name='Test')
+    photo = PlantCardPhoto.objects.create(plant=plant, image='plants/cards/test.jpg')
+    assert photo.plant == plant
+
+
+@pytest.mark.django_db
+def test_card_photos_ordered_by_uploaded_at():
+    from plants.models import PlantCardPhoto
+    plant = Plant.objects.create(name='Test')
+    p1 = PlantCardPhoto.objects.create(plant=plant, image='plants/cards/a.jpg')
+    p2 = PlantCardPhoto.objects.create(plant=plant, image='plants/cards/b.jpg')
+    qs = list(PlantCardPhoto.objects.filter(plant=plant))
+    assert qs[0] == p1
+    assert qs[1] == p2
+
+
+@pytest.mark.django_db
+def test_card_photos_deleted_with_plant():
+    from plants.models import PlantCardPhoto
+    plant = Plant.objects.create(name='Test')
+    PlantCardPhoto.objects.create(plant=plant, image='plants/cards/test.jpg')
+    plant.delete()
+    assert PlantCardPhoto.objects.count() == 0