Adds saved lists many to many field

bookwyrm/migrations/0085_user_saved_lists.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.4 on 2021-08-23 18:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookwyrm", "0084_auto_20210817_1916"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="user",
+            name="saved_lists",
+            field=models.ManyToManyField(
+                related_name="saved_lists", to="bookwyrm.List"
+            ),
+        ),
+    ]

bookwyrm/models/user.py

@@ -104,6 +104,9 @@ class User(OrderedCollectionPageMixin, AbstractUser):
         through_fields=("user_subject", "user_object"),
         related_name="blocked_by",
     )
+    saved_lists = models.ManyToManyField(
+        "List", symmetrical=False, related_name="saved_lists"
+    )
     favorites = models.ManyToManyField(
         "Status",
         symmetrical=False,