Calculate Author search vector with name and aliases

bookwyrm/migrations/0197_author_search_vector.py

@@ -0,0 +1,41 @@
+# Generated by Django 3.2.25 on 2024-03-20 15:15
+
+import django.contrib.postgres.indexes
+from django.db import migrations
+import pgtrigger.compiler
+import pgtrigger.migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookwyrm", "0196_merge_pr3134_into_main"),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name="author",
+            index=django.contrib.postgres.indexes.GinIndex(
+                fields=["search_vector"], name="bookwyrm_au_search__b050a8_gin"
+            ),
+        ),
+        pgtrigger.migrations.AddTrigger(
+            model_name="author",
+            trigger=pgtrigger.compiler.Trigger(
+                name="update_search_vector_on_author_edit",
+                sql=pgtrigger.compiler.UpsertTriggerSql(
+                    func="new.search_vector := setweight(to_tsvector('simple', new.name), 'A') || setweight(to_tsvector('simple', coalesce(array_to_string(new.aliases, ' '), '')), 'B');RETURN NEW;",
+                    hash="b97919016236d74d0ade51a0769a173ea269da64",
+                    operation='INSERT OR UPDATE OF "name", "aliases", "search_vector"',
+                    pgid="pgtrigger_update_search_vector_on_author_edit_c61cb",
+                    table="bookwyrm_author",
+                    when="BEFORE",
+                ),
+            ),
+        ),
+        migrations.RunSQL(
+            # Calculate search vector for all Authors.
+            sql="UPDATE bookwyrm_author SET search_vector = NULL;",
+            reverse_sql="UPDATE bookwyrm_author SET search_vector = NULL;",
+        ),
+    ]

bookwyrm/models/author.py

@@ -3,6 +3,7 @@ import re
 from typing import Tuple, Any
 
 from django.db import models
+from django.contrib.postgres.indexes import GinIndex
 import pgtrigger
 
 from bookwyrm import activitypub
@@ -71,7 +72,25 @@ class Author(BookDataModel):
     class Meta:
         """sets up indexes and triggers"""
 
+        # pylint: disable=line-too-long
+
+        indexes = (GinIndex(fields=["search_vector"]),)
         triggers = [
+            pgtrigger.Trigger(
+                name="update_search_vector_on_author_edit",
+                when=pgtrigger.Before,
+                operation=pgtrigger.Insert
+                | pgtrigger.UpdateOf("name", "aliases", "search_vector"),
+                func=format_trigger(
+                    """new.search_vector :=
+                    -- author name, with priority A
+                    setweight(to_tsvector('simple', new.name), 'A') ||
+                    -- author aliases, with priority B
+                    setweight(to_tsvector('simple', coalesce(array_to_string(new.aliases, ' '), '')), 'B');
+                    RETURN new;
+                """
+                ),
+            ),
             pgtrigger.Trigger(
                 name="reset_search_vector_on_author_edit",
                 when=pgtrigger.After,
@@ -89,7 +108,7 @@ class Author(BookDataModel):
                     RETURN new;
                 """
                 ),
-            )
+            ),
         ]
 
     activity_serializer = activitypub.Author