first conversions working

cookbook/migrations/0187_unitconversion.py

@@ -0,0 +1,34 @@
+# Generated by Django 4.1.4 on 2023-01-09 16:41
+
+import cookbook.models
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import django_prometheus.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('cookbook', '0186_automation_order_alter_automation_type'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='UnitConversion',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('base_amount', models.DecimalField(decimal_places=16, default=0, max_digits=32)),
+                ('converted_amount', models.DecimalField(decimal_places=16, default=0, max_digits=32)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('updated_at', models.DateTimeField(auto_now=True)),
+                ('base_unit', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='base_unit', to='cookbook.unit')),
+                ('converted_unit', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='converted_unit', to='cookbook.unit')),
+                ('created_by', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, to=settings.AUTH_USER_MODEL)),
+                ('food', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='cookbook.food')),
+                ('space', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='cookbook.space')),
+            ],
+            bases=(django_prometheus.models.ExportModelOperationsMixin('unit_conversion'), models.Model, cookbook.models.PermissionModelMixin),
+        ),
+    ]