working proof of concept

cookbook/migrations/0119_auto_20210407_1828.py

@@ -0,0 +1,37 @@
+# Generated by Django 3.1.7 on 2021-04-07 20:00
+
+from django.contrib.postgres.indexes import GinIndex
+from django.contrib.postgres.search import SearchVectorField, SearchVector
+from django.db import migrations
+from django_scopes import scopes_disabled
+from cookbook.models import Recipe
+
+
+def set_default_search_vector(apps, schema_editor):
+    with scopes_disabled():
+        search_vector = (
+            SearchVector('name', weight='A')
+            + SearchVector('description', weight='B'))
+        Recipe.objects.all().update(search_vector=search_vector)
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cookbook', '0118_auto_20210406_1805'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='recipe',
+            name='search_vector',
+            field=SearchVectorField(null=True),
+        ),
+        migrations.AddIndex(
+            model_name='recipe',
+            index=GinIndex(fields=['search_vector'], name='cookbook_re_search__404e46_gin'),
+        ),
+        migrations.RunPython(
+            set_default_search_vector
+        ),
+    ]