mirror of https://github.com/django/django.git
73 lines
2.4 KiB
Python
73 lines
2.4 KiB
Python
from django.db.models import CharField, Value as V
|
|
from django.db.models.functions import Coalesce, Length, Upper
|
|
from django.test import TestCase
|
|
from django.test.utils import register_lookup
|
|
|
|
from .models import Author
|
|
|
|
|
|
class UpperBilateral(Upper):
|
|
bilateral = True
|
|
|
|
|
|
class FunctionTests(TestCase):
|
|
|
|
def test_nested_function_ordering(self):
|
|
Author.objects.create(name='John Smith')
|
|
Author.objects.create(name='Rhonda Simpson', alias='ronny')
|
|
|
|
authors = Author.objects.order_by(Length(Coalesce('alias', 'name')))
|
|
self.assertQuerysetEqual(
|
|
authors, [
|
|
'Rhonda Simpson',
|
|
'John Smith',
|
|
],
|
|
lambda a: a.name
|
|
)
|
|
|
|
authors = Author.objects.order_by(Length(Coalesce('alias', 'name')).desc())
|
|
self.assertQuerysetEqual(
|
|
authors, [
|
|
'John Smith',
|
|
'Rhonda Simpson',
|
|
],
|
|
lambda a: a.name
|
|
)
|
|
|
|
def test_func_transform_bilateral(self):
|
|
with register_lookup(CharField, UpperBilateral):
|
|
Author.objects.create(name='John Smith', alias='smithj')
|
|
Author.objects.create(name='Rhonda')
|
|
authors = Author.objects.filter(name__upper__exact='john smith')
|
|
self.assertQuerysetEqual(
|
|
authors.order_by('name'), [
|
|
'John Smith',
|
|
],
|
|
lambda a: a.name
|
|
)
|
|
|
|
def test_func_transform_bilateral_multivalue(self):
|
|
with register_lookup(CharField, UpperBilateral):
|
|
Author.objects.create(name='John Smith', alias='smithj')
|
|
Author.objects.create(name='Rhonda')
|
|
authors = Author.objects.filter(name__upper__in=['john smith', 'rhonda'])
|
|
self.assertQuerysetEqual(
|
|
authors.order_by('name'), [
|
|
'John Smith',
|
|
'Rhonda',
|
|
],
|
|
lambda a: a.name
|
|
)
|
|
|
|
def test_function_as_filter(self):
|
|
Author.objects.create(name='John Smith', alias='SMITHJ')
|
|
Author.objects.create(name='Rhonda')
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(alias=Upper(V('smithj'))),
|
|
['John Smith'], lambda x: x.name
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.exclude(alias=Upper(V('smithj'))),
|
|
['Rhonda'], lambda x: x.name
|
|
)
|