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Include Author aliases in Book search vector

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Bart Schuurmans 2024-03-20 16:18:55 +01:00
parent 2de35f3fc7
commit 0795b4d171
3 changed files with 87 additions and 20 deletions
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57
bookwyrm/migrations/0198_book_search_vector_author_aliases.py Normal file
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@ -0,0 +1,57 @@
# Generated by Django 3.2.25 on 2024-03-20 15:52
from django.db import migrations
import pgtrigger.compiler
import pgtrigger.migrations
class Migration(migrations.Migration):
dependencies = [
("bookwyrm", "0197_author_search_vector"),
]
operations = [
pgtrigger.migrations.RemoveTrigger(
model_name="author",
name="reset_search_vector_on_author_edit",
),
pgtrigger.migrations.RemoveTrigger(
model_name="book",
name="update_search_vector_on_book_edit",
),
pgtrigger.migrations.AddTrigger(
model_name="author",
trigger=pgtrigger.compiler.Trigger(
name="reset_book_search_vector_on_author_edit",
sql=pgtrigger.compiler.UpsertTriggerSql(
func="WITH updated_books AS (SELECT book_id FROM bookwyrm_book_authors WHERE author_id = new.id ) UPDATE bookwyrm_book SET search_vector = '' FROM updated_books WHERE id = updated_books.book_id;RETURN NEW;",
hash="68422c0f29879c5802b82159dde45297eff53e73",
operation='UPDATE OF "name", "aliases"',
pgid="pgtrigger_reset_book_search_vector_on_author_edit_a50c7",
table="bookwyrm_author",
when="AFTER",
),
),
),
pgtrigger.migrations.AddTrigger(
model_name="book",
trigger=pgtrigger.compiler.Trigger(
name="update_search_vector_on_book_edit",
sql=pgtrigger.compiler.UpsertTriggerSql(
func="WITH author_names AS (SELECT array_to_string(bookwyrm_author.name || bookwyrm_author.aliases, ' ') AS name_and_aliases FROM bookwyrm_author LEFT JOIN bookwyrm_book_authors ON bookwyrm_author.id = bookwyrm_book_authors.author_id WHERE bookwyrm_book_authors.book_id = new.id ) SELECT setweight(coalesce(nullif(to_tsvector('english', new.title), ''), to_tsvector('simple', new.title)), 'A') || setweight(to_tsvector('english', coalesce(new.subtitle, '')), 'B') || (SELECT setweight(to_tsvector('simple', coalesce(array_to_string(array_agg(name_and_aliases), ' '), '')), 'C') FROM author_names) || setweight(to_tsvector('english', coalesce(new.series, '')), 'D') INTO new.search_vector;RETURN NEW;",
hash="9324f5ca76a6f5e63931881d62d11da11f595b2c",
operation='INSERT OR UPDATE OF "title", "subtitle", "series", "search_vector"',
pgid="pgtrigger_update_search_vector_on_book_edit_bec58",
table="bookwyrm_book",
when="BEFORE",
),
),
),
migrations.RunSQL(
# Recalculate search vector for all Books because it now includes
# Author aliases.
sql="UPDATE bookwyrm_book SET search_vector = NULL;",
reverse_sql="UPDATE bookwyrm_book SET search_vector = NULL;",
),
]

4
bookwyrm/models/author.py
View file

@ -92,9 +92,9 @@ class Author(BookDataModel):
),
),
pgtrigger.Trigger(
name="reset_search_vector_on_author_edit",
name="reset_book_search_vector_on_author_edit",
when=pgtrigger.After,
operation=pgtrigger.UpdateOf("name"),
operation=pgtrigger.UpdateOf("name", "aliases"),
func=format_trigger(
"""WITH updated_books AS (
SELECT book_id

46
bookwyrm/models/book.py
View file

@ -246,24 +246,34 @@ class Book(BookDataModel):
operation=pgtrigger.Insert
| pgtrigger.UpdateOf("title", "subtitle", "series", "search_vector"),
func=format_trigger(
"""new.search_vector :=
-- title, with priority A (parse in English, default to simple if empty)
setweight(COALESCE(nullif(
to_tsvector('english', new.title), ''),
to_tsvector('simple', new.title)), 'A') ||
-- subtitle, with priority B (always in English?)
setweight(to_tsvector('english', COALESCE(new.subtitle, '')), 'B') ||
-- list of authors, with priority C (TODO: add aliases?, bookwyrm-social#3063)
(SELECT setweight(to_tsvector('simple', COALESCE(array_to_string(ARRAY_AGG(bookwyrm_author.name), ' '), '')), 'C')
FROM bookwyrm_author
LEFT JOIN bookwyrm_book_authors
ON bookwyrm_author.id = bookwyrm_book_authors.author_id
WHERE bookwyrm_book_authors.book_id = new.id
) ||
--- last: series name, with lowest priority
setweight(to_tsvector('english', COALESCE(new.series, '')), 'D');
RETURN new;
"""
"""
WITH author_names AS (
SELECT array_to_string(bookwyrm_author.name || bookwyrm_author.aliases, ' ') AS name_and_aliases
FROM bookwyrm_author
LEFT JOIN bookwyrm_book_authors
ON bookwyrm_author.id = bookwyrm_book_authors.author_id
WHERE bookwyrm_book_authors.book_id = new.id
)
SELECT
-- title, with priority A (parse in English, default to simple if empty)
setweight(COALESCE(nullif(
to_tsvector('english', new.title), ''),
to_tsvector('simple', new.title)), 'A') ||
-- subtitle, with priority B (always in English?)
setweight(to_tsvector('english', COALESCE(new.subtitle, '')), 'B') ||
-- list of authors names and aliases (with priority C)
(SELECT setweight(to_tsvector('simple', COALESCE(array_to_string(ARRAY_AGG(name_and_aliases), ' '), '')), 'C')
FROM author_names
) ||
--- last: series name, with lowest priority
setweight(to_tsvector('english', COALESCE(new.series, '')), 'D')
INTO new.search_vector;
RETURN new;
"""
),
)
]