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from django.db import connection
from . import PostgreSQLTestCase
from .models import CharFieldModel, TextFieldModel
class UnaccentTest(PostgreSQLTestCase):
Model = CharFieldModel
@classmethod
def setUpTestData(cls):
cls.Model.objects.bulk_create(
[
cls.Model(field="àéÖ"),
cls.Model(field="aeO"),
cls.Model(field="aeo"),
]
)
def test_unaccent(self):
self.assertQuerySetEqual(
self.Model.objects.filter(field__unaccent="aeO"),
["àéÖ", "aeO"],
transform=lambda instance: instance.field,
ordered=False,
)
def test_unaccent_chained(self):
"""
Unaccent can be used chained with a lookup (which should be the case
since unaccent implements the Transform API)
"""
self.assertQuerySetEqual(
self.Model.objects.filter(field__unaccent__iexact="aeO"),
["àéÖ", "aeO", "aeo"],
transform=lambda instance: instance.field,
ordered=False,
)
self.assertQuerySetEqual(
self.Model.objects.filter(field__unaccent__endswith="éÖ"),
["àéÖ", "aeO"],
transform=lambda instance: instance.field,
ordered=False,
)
def test_unaccent_with_conforming_strings_off(self):
"""SQL is valid when standard_conforming_strings is off."""
with connection.cursor() as cursor:
cursor.execute("SHOW standard_conforming_strings")
disable_conforming_strings = cursor.fetchall()[0][0] == "on"
if disable_conforming_strings:
cursor.execute("SET standard_conforming_strings TO off")
try:
self.assertQuerySetEqual(
self.Model.objects.filter(field__unaccent__endswith="éÖ"),
["àéÖ", "aeO"],
transform=lambda instance: instance.field,
ordered=False,
)
finally:
if disable_conforming_strings:
cursor.execute("SET standard_conforming_strings TO on")
def test_unaccent_accentuated_needle(self):
self.assertQuerySetEqual(
self.Model.objects.filter(field__unaccent="aéÖ"),
["àéÖ", "aeO"],
transform=lambda instance: instance.field,
ordered=False,
)
class UnaccentTextFieldTest(UnaccentTest):
"""
TextField should have the exact same behavior as CharField
regarding unaccent lookups.
"""
Model = TextFieldModel
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