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Trigger search vector update when author is edited
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parent
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commit
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3 changed files with 121 additions and 1 deletions
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@ -70,4 +70,57 @@ class Migration(migrations.Migration):
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DROP FUNCTION IF EXISTS book_trigger;
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""",
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),
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# when an author is edited
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migrations.RunSQL(
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sql="""
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CREATE FUNCTION author_trigger() RETURNS trigger AS $$
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begin
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WITH book AS (
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SELECT bookwyrm_book.id as row_id
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FROM bookwyrm_author
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LEFT OUTER JOIN bookwyrm_book_authors
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ON bookwyrm_book_authors.id = new.id
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LEFT OUTER JOIN bookwyrm_book
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ON bookwyrm_book.id = bookwyrm_book_authors.book_id
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)
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UPDATE bookwyrm_book SET search_vector = ''
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FROM book
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WHERE id = book.row_id;
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return new;
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end
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER author_search_vector_trigger
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AFTER UPDATE OF name
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ON bookwyrm_author
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FOR EACH ROW EXECUTE FUNCTION author_trigger();
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""",
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reverse_sql="""
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DROP TRIGGER IF EXISTS author_search_vector_trigger
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ON bookwyrm_author;
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DROP FUNCTION IF EXISTS author_trigger;
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""",
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),
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# when an author is added to or removed from a book
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migrations.RunSQL(
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sql="""
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CREATE FUNCTION book_authors_trigger() RETURNS trigger AS $$
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begin
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UPDATE bookwyrm_book SET search_vector = ''
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WHERE id = coalesce(new.book_id, old.book_id);
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return new;
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end
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER book_authors_search_vector_trigger
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AFTER INSERT OR DELETE
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ON bookwyrm_book_authors
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FOR EACH ROW EXECUTE FUNCTION book_authors_trigger();
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""",
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reverse_sql="""
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DROP TRIGGER IF EXISTS book_authors_search_vector_trigger
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ON bookwyrm_book_authors;
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DROP FUNCTION IF EXISTS book_authors_trigger;
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""",
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),
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]
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@ -1,8 +1,9 @@
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""" testing models """
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from unittest.mock import patch
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from dateutil.parser import parse
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from django.test import TestCase
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from django.utils import timezone
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from unittest.mock import patch
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from bookwyrm import models, settings
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from bookwyrm.models.book import isbn_10_to_13, isbn_13_to_10
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66
bookwyrm/tests/test_postgres.py
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66
bookwyrm/tests/test_postgres.py
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@ -0,0 +1,66 @@
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""" django configuration of postgres """
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from django.test import TestCase
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from bookwyrm import models
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class PostgresTriggers(TestCase):
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"""special migrations, fancy stuff ya know"""
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def test_search_vector_on_create(self):
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"""make sure that search_vector is being set correctly on create"""
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book = models.Edition.objects.create(title="The Long Goodbye")
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book.refresh_from_db()
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self.assertEqual(book.search_vector, "'goodby':3A 'long':2A")
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def test_search_vector_on_update(self):
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"""make sure that search_vector is being set correctly on edit"""
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book = models.Edition.objects.create(title="The Long Goodbye")
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book.title = "The Even Longer Goodbye"
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book.save(broadcast=False)
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book.refresh_from_db()
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self.assertEqual(book.search_vector, "'even':2A 'goodby':4A 'longer':3A")
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def test_search_vector_fields(self):
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"""use multiple fields to create search vector"""
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author = models.Author.objects.create(name="The Rays")
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book = models.Edition.objects.create(
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title="The Long Goodbye",
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subtitle="wow cool",
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series="series name",
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languages=["irrelevent"],
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)
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book.authors.add(author)
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book.refresh_from_db()
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self.assertEqual(
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book.search_vector,
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"'cool':5B 'goodby':3A 'long':2A 'name':9 'rays':7B 'seri':8 'the':6B 'wow':4B",
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)
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def test_seach_vector_on_author_update(self):
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"""update search when an author name changes"""
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author = models.Author.objects.create(name="The Rays")
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book = models.Edition.objects.create(
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title="The Long Goodbye",
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)
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book.authors.add(author)
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author.name = "Jeremy"
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author.save(broadcast=False)
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book.refresh_from_db()
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self.assertEqual(book.search_vector, "'goodby':3A 'jeremy':4B 'long':2A")
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def test_seach_vector_on_author_delete(self):
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"""update search when an author name changes"""
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author = models.Author.objects.create(name="Jeremy")
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book = models.Edition.objects.create(
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title="The Long Goodbye",
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)
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book.authors.add(author)
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book.refresh_from_db()
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self.assertEqual(book.search_vector, "'goodby':3A 'jeremy':4B 'long':2A")
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book.authors.remove(author)
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book.refresh_from_db()
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self.assertEqual(book.search_vector, "'goodby':3A 'long':2A")
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