Fixed #31340 -- Allowed query expressions in SearchQuery.value and __search lookup.

tests/postgres_tests/migrations/0002_create_test_models.py

@@ -185,6 +185,17 @@ class Migration(migrations.Migration):
             },
             bases=None,
         ),
+        migrations.CreateModel(
+            name='LineSavedSearch',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('line', models.ForeignKey('postgres_tests.Line', on_delete=models.CASCADE)),
+                ('query', models.CharField(max_length=100)),
+            ],
+            options={
+                'required_db_vendor': 'postgresql',
+            },
+        ),
         migrations.CreateModel(
             name='AggregateTestModel',
             fields=[

tests/postgres_tests/models.py

@@ -139,6 +139,11 @@ class Line(PostgreSQLModel):
         return self.dialogue or ''
 
 
+class LineSavedSearch(PostgreSQLModel):
+    line = models.ForeignKey('Line', models.CASCADE)
+    query = models.CharField(max_length=100)
+
+
 class RangesModel(PostgreSQLModel):
     ints = IntegerRangeField(blank=True, null=True)
     bigints = BigIntegerRangeField(blank=True, null=True)

tests/postgres_tests/test_search.py

@@ -10,7 +10,7 @@ from django.db.models import F
 from django.test import modify_settings, skipUnlessDBFeature
 
 from . import PostgreSQLSimpleTestCase, PostgreSQLTestCase
-from .models import Character, Line, Scene
+from .models import Character, Line, LineSavedSearch, Scene
 
 try:
     from django.contrib.postgres.search import (
@@ -110,6 +110,18 @@ class SimpleSearchTest(GrailTestData, PostgreSQLTestCase):
         )
         self.assertSequenceEqual(searched, [self.verse2])
 
+    def test_search_with_F_expression(self):
+        # Non-matching query.
+        LineSavedSearch.objects.create(line=self.verse1, query='hearts')
+        # Matching query.
+        match = LineSavedSearch.objects.create(line=self.verse1, query='elbows')
+        for query_expression in [F('query'), SearchQuery(F('query'))]:
+            with self.subTest(query_expression):
+                searched = LineSavedSearch.objects.filter(
+                    line__dialogue__search=query_expression,
+                )
+                self.assertSequenceEqual(searched, [match])
+
 
 @modify_settings(INSTALLED_APPS={'append': 'django.contrib.postgres'})
 class SearchVectorFieldTest(GrailTestData, PostgreSQLTestCase):