add food substitutions

cookbook/migrations/0170_alter_ingredient_unit.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.2.11 on 2022-02-02 19:36
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cookbook', '0169_auto_20220121_1427'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='ingredient',
+            name='unit',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='cookbook.unit'),
+        ),
+    ]

cookbook/migrations/0171_auto_20220202_1340.py

@@ -0,0 +1,34 @@
+# Generated by Django 3.2.11 on 2022-02-02 19:40
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cookbook', '0170_alter_ingredient_unit'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='food',
+            name='substitute',
+            field=models.ManyToManyField(blank=True, related_name='_cookbook_food_substitute_+', to='cookbook.Food'),
+        ),
+        migrations.AddField(
+            model_name='food',
+            name='substitute_children',
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name='food',
+            name='substitute_siblings',
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AlterField(
+            model_name='ingredient',
+            name='unit',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='cookbook.unit'),
+        ),
+    ]