mirror of https://github.com/django/django.git
562 lines
22 KiB
Python
562 lines
22 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import time
|
|
import unittest
|
|
from datetime import date, datetime
|
|
|
|
from django.core.exceptions import FieldError
|
|
from django.db import connection, models
|
|
from django.test import TestCase, override_settings
|
|
from django.utils import timezone
|
|
|
|
from .models import Author, MySQLUnixTimestamp
|
|
|
|
|
|
class Div3Lookup(models.Lookup):
|
|
lookup_name = 'div3'
|
|
|
|
def as_sql(self, compiler, connection):
|
|
lhs, params = self.process_lhs(compiler, connection)
|
|
rhs, rhs_params = self.process_rhs(compiler, connection)
|
|
params.extend(rhs_params)
|
|
return '(%s) %%%% 3 = %s' % (lhs, rhs), params
|
|
|
|
def as_oracle(self, compiler, connection):
|
|
lhs, params = self.process_lhs(compiler, connection)
|
|
rhs, rhs_params = self.process_rhs(compiler, connection)
|
|
params.extend(rhs_params)
|
|
return 'mod(%s, 3) = %s' % (lhs, rhs), params
|
|
|
|
|
|
class Div3Transform(models.Transform):
|
|
lookup_name = 'div3'
|
|
|
|
def as_sql(self, compiler, connection):
|
|
lhs, lhs_params = compiler.compile(self.lhs)
|
|
return '(%s) %%%% 3' % lhs, lhs_params
|
|
|
|
def as_oracle(self, compiler, connection):
|
|
lhs, lhs_params = compiler.compile(self.lhs)
|
|
return 'mod(%s, 3)' % lhs, lhs_params
|
|
|
|
|
|
class Div3BilateralTransform(Div3Transform):
|
|
bilateral = True
|
|
|
|
|
|
class Mult3BilateralTransform(models.Transform):
|
|
bilateral = True
|
|
lookup_name = 'mult3'
|
|
|
|
def as_sql(self, compiler, connection):
|
|
lhs, lhs_params = compiler.compile(self.lhs)
|
|
return '3 * (%s)' % lhs, lhs_params
|
|
|
|
|
|
class UpperBilateralTransform(models.Transform):
|
|
bilateral = True
|
|
lookup_name = 'upper'
|
|
|
|
def as_sql(self, compiler, connection):
|
|
lhs, lhs_params = compiler.compile(self.lhs)
|
|
return 'UPPER(%s)' % lhs, lhs_params
|
|
|
|
|
|
class YearTransform(models.Transform):
|
|
# Use a name that avoids collision with the built-in year lookup.
|
|
lookup_name = 'testyear'
|
|
|
|
def as_sql(self, compiler, connection):
|
|
lhs_sql, params = compiler.compile(self.lhs)
|
|
return connection.ops.date_extract_sql('year', lhs_sql), params
|
|
|
|
@property
|
|
def output_field(self):
|
|
return models.IntegerField()
|
|
|
|
|
|
@YearTransform.register_lookup
|
|
class YearExact(models.lookups.Lookup):
|
|
lookup_name = 'exact'
|
|
|
|
def as_sql(self, compiler, connection):
|
|
# We will need to skip the extract part, and instead go
|
|
# directly with the originating field, that is self.lhs.lhs
|
|
lhs_sql, lhs_params = self.process_lhs(compiler, connection, self.lhs.lhs)
|
|
rhs_sql, rhs_params = self.process_rhs(compiler, connection)
|
|
# Note that we must be careful so that we have params in the
|
|
# same order as we have the parts in the SQL.
|
|
params = lhs_params + rhs_params + lhs_params + rhs_params
|
|
# We use PostgreSQL specific SQL here. Note that we must do the
|
|
# conversions in SQL instead of in Python to support F() references.
|
|
return ("%(lhs)s >= (%(rhs)s || '-01-01')::date "
|
|
"AND %(lhs)s <= (%(rhs)s || '-12-31')::date" %
|
|
{'lhs': lhs_sql, 'rhs': rhs_sql}, params)
|
|
|
|
|
|
@YearTransform.register_lookup
|
|
class YearLte(models.lookups.LessThanOrEqual):
|
|
"""
|
|
The purpose of this lookup is to efficiently compare the year of the field.
|
|
"""
|
|
|
|
def as_sql(self, compiler, connection):
|
|
# Skip the YearTransform above us (no possibility for efficient
|
|
# lookup otherwise).
|
|
real_lhs = self.lhs.lhs
|
|
lhs_sql, params = self.process_lhs(compiler, connection, real_lhs)
|
|
rhs_sql, rhs_params = self.process_rhs(compiler, connection)
|
|
params.extend(rhs_params)
|
|
# Build SQL where the integer year is concatenated with last month
|
|
# and day, then convert that to date. (We try to have SQL like:
|
|
# WHERE somecol <= '2013-12-31')
|
|
# but also make it work if the rhs_sql is field reference.
|
|
return "%s <= (%s || '-12-31')::date" % (lhs_sql, rhs_sql), params
|
|
|
|
|
|
class SQLFunc(models.Lookup):
|
|
def __init__(self, name, *args, **kwargs):
|
|
super(SQLFunc, self).__init__(*args, **kwargs)
|
|
self.name = name
|
|
|
|
def as_sql(self, compiler, connection):
|
|
return '%s()', [self.name]
|
|
|
|
@property
|
|
def output_field(self):
|
|
return CustomField()
|
|
|
|
|
|
class SQLFuncFactory(object):
|
|
|
|
def __init__(self, name):
|
|
self.name = name
|
|
|
|
def __call__(self, *args, **kwargs):
|
|
return SQLFunc(self.name, *args, **kwargs)
|
|
|
|
|
|
class CustomField(models.TextField):
|
|
|
|
def get_lookup(self, lookup_name):
|
|
if lookup_name.startswith('lookupfunc_'):
|
|
key, name = lookup_name.split('_', 1)
|
|
return SQLFuncFactory(name)
|
|
return super(CustomField, self).get_lookup(lookup_name)
|
|
|
|
def get_transform(self, lookup_name):
|
|
if lookup_name.startswith('transformfunc_'):
|
|
key, name = lookup_name.split('_', 1)
|
|
return SQLFuncFactory(name)
|
|
return super(CustomField, self).get_transform(lookup_name)
|
|
|
|
|
|
class CustomModel(models.Model):
|
|
field = CustomField()
|
|
|
|
|
|
# We will register this class temporarily in the test method.
|
|
|
|
|
|
class InMonth(models.lookups.Lookup):
|
|
"""
|
|
InMonth matches if the column's month is the same as value's month.
|
|
"""
|
|
lookup_name = 'inmonth'
|
|
|
|
def as_sql(self, compiler, connection):
|
|
lhs, lhs_params = self.process_lhs(compiler, connection)
|
|
rhs, rhs_params = self.process_rhs(compiler, connection)
|
|
# We need to be careful so that we get the params in right
|
|
# places.
|
|
params = lhs_params + rhs_params + lhs_params + rhs_params
|
|
return ("%s >= date_trunc('month', %s) and "
|
|
"%s < date_trunc('month', %s) + interval '1 months'" %
|
|
(lhs, rhs, lhs, rhs), params)
|
|
|
|
|
|
class DateTimeTransform(models.Transform):
|
|
lookup_name = 'as_datetime'
|
|
|
|
@property
|
|
def output_field(self):
|
|
return models.DateTimeField()
|
|
|
|
def as_sql(self, compiler, connection):
|
|
lhs, params = compiler.compile(self.lhs)
|
|
return 'from_unixtime({})'.format(lhs), params
|
|
|
|
|
|
class LookupTests(TestCase):
|
|
def test_basic_lookup(self):
|
|
a1 = Author.objects.create(name='a1', age=1)
|
|
a2 = Author.objects.create(name='a2', age=2)
|
|
a3 = Author.objects.create(name='a3', age=3)
|
|
a4 = Author.objects.create(name='a4', age=4)
|
|
models.IntegerField.register_lookup(Div3Lookup)
|
|
try:
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(age__div3=0),
|
|
[a3], lambda x: x
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(age__div3=1).order_by('age'),
|
|
[a1, a4], lambda x: x
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(age__div3=2),
|
|
[a2], lambda x: x
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(age__div3=3),
|
|
[], lambda x: x
|
|
)
|
|
finally:
|
|
models.IntegerField._unregister_lookup(Div3Lookup)
|
|
|
|
@unittest.skipUnless(connection.vendor == 'postgresql', "PostgreSQL specific SQL used")
|
|
def test_birthdate_month(self):
|
|
a1 = Author.objects.create(name='a1', birthdate=date(1981, 2, 16))
|
|
a2 = Author.objects.create(name='a2', birthdate=date(2012, 2, 29))
|
|
a3 = Author.objects.create(name='a3', birthdate=date(2012, 1, 31))
|
|
a4 = Author.objects.create(name='a4', birthdate=date(2012, 3, 1))
|
|
models.DateField.register_lookup(InMonth)
|
|
try:
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(birthdate__inmonth=date(2012, 1, 15)),
|
|
[a3], lambda x: x
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(birthdate__inmonth=date(2012, 2, 1)),
|
|
[a2], lambda x: x
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(birthdate__inmonth=date(1981, 2, 28)),
|
|
[a1], lambda x: x
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(birthdate__inmonth=date(2012, 3, 12)),
|
|
[a4], lambda x: x
|
|
)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(birthdate__inmonth=date(2012, 4, 1)),
|
|
[], lambda x: x
|
|
)
|
|
finally:
|
|
models.DateField._unregister_lookup(InMonth)
|
|
|
|
def test_div3_extract(self):
|
|
models.IntegerField.register_lookup(Div3Transform)
|
|
try:
|
|
a1 = Author.objects.create(name='a1', age=1)
|
|
a2 = Author.objects.create(name='a2', age=2)
|
|
a3 = Author.objects.create(name='a3', age=3)
|
|
a4 = Author.objects.create(name='a4', age=4)
|
|
baseqs = Author.objects.order_by('name')
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3=2),
|
|
[a2], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__lte=3),
|
|
[a1, a2, a3, a4], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__in=[0, 2]),
|
|
[a2, a3], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__in=[2, 4]),
|
|
[a2], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__gte=3),
|
|
[], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__range=(1, 2)),
|
|
[a1, a2, a4], lambda x: x)
|
|
finally:
|
|
models.IntegerField._unregister_lookup(Div3Transform)
|
|
|
|
|
|
class BilateralTransformTests(TestCase):
|
|
|
|
def test_bilateral_upper(self):
|
|
models.CharField.register_lookup(UpperBilateralTransform)
|
|
try:
|
|
Author.objects.bulk_create([
|
|
Author(name='Doe'),
|
|
Author(name='doe'),
|
|
Author(name='Foo'),
|
|
])
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(name__upper='doe'),
|
|
["<Author: Doe>", "<Author: doe>"], ordered=False)
|
|
self.assertQuerysetEqual(
|
|
Author.objects.filter(name__upper__contains='f'),
|
|
["<Author: Foo>"], ordered=False)
|
|
finally:
|
|
models.CharField._unregister_lookup(UpperBilateralTransform)
|
|
|
|
def test_bilateral_inner_qs(self):
|
|
models.CharField.register_lookup(UpperBilateralTransform)
|
|
try:
|
|
with self.assertRaises(NotImplementedError):
|
|
Author.objects.filter(name__upper__in=Author.objects.values_list('name'))
|
|
finally:
|
|
models.CharField._unregister_lookup(UpperBilateralTransform)
|
|
|
|
def test_div3_bilateral_extract(self):
|
|
models.IntegerField.register_lookup(Div3BilateralTransform)
|
|
try:
|
|
a1 = Author.objects.create(name='a1', age=1)
|
|
a2 = Author.objects.create(name='a2', age=2)
|
|
a3 = Author.objects.create(name='a3', age=3)
|
|
a4 = Author.objects.create(name='a4', age=4)
|
|
baseqs = Author.objects.order_by('name')
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3=2),
|
|
[a2], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__lte=3),
|
|
[a3], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__in=[0, 2]),
|
|
[a2, a3], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__in=[2, 4]),
|
|
[a1, a2, a4], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__gte=3),
|
|
[a1, a2, a3, a4], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__range=(1, 2)),
|
|
[a1, a2, a4], lambda x: x)
|
|
finally:
|
|
models.IntegerField._unregister_lookup(Div3BilateralTransform)
|
|
|
|
def test_bilateral_order(self):
|
|
models.IntegerField.register_lookup(Mult3BilateralTransform)
|
|
models.IntegerField.register_lookup(Div3BilateralTransform)
|
|
try:
|
|
a1 = Author.objects.create(name='a1', age=1)
|
|
a2 = Author.objects.create(name='a2', age=2)
|
|
a3 = Author.objects.create(name='a3', age=3)
|
|
a4 = Author.objects.create(name='a4', age=4)
|
|
baseqs = Author.objects.order_by('name')
|
|
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__mult3__div3=42),
|
|
# mult3__div3 always leads to 0
|
|
[a1, a2, a3, a4], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__div3__mult3=42),
|
|
[a3], lambda x: x)
|
|
finally:
|
|
models.IntegerField._unregister_lookup(Mult3BilateralTransform)
|
|
models.IntegerField._unregister_lookup(Div3BilateralTransform)
|
|
|
|
def test_bilateral_fexpr(self):
|
|
models.IntegerField.register_lookup(Mult3BilateralTransform)
|
|
try:
|
|
a1 = Author.objects.create(name='a1', age=1, average_rating=3.2)
|
|
a2 = Author.objects.create(name='a2', age=2, average_rating=0.5)
|
|
a3 = Author.objects.create(name='a3', age=3, average_rating=1.5)
|
|
a4 = Author.objects.create(name='a4', age=4)
|
|
baseqs = Author.objects.order_by('name')
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(age__mult3=models.F('age')),
|
|
[a1, a2, a3, a4], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
# Same as age >= average_rating
|
|
baseqs.filter(age__mult3__gte=models.F('average_rating')),
|
|
[a2, a3], lambda x: x)
|
|
finally:
|
|
models.IntegerField._unregister_lookup(Mult3BilateralTransform)
|
|
|
|
|
|
@override_settings(USE_TZ=True)
|
|
class DateTimeLookupTests(TestCase):
|
|
@unittest.skipUnless(connection.vendor == 'mysql', "MySQL specific SQL used")
|
|
def test_datetime_output_field(self):
|
|
models.PositiveIntegerField.register_lookup(DateTimeTransform)
|
|
try:
|
|
ut = MySQLUnixTimestamp.objects.create(timestamp=time.time())
|
|
y2k = timezone.make_aware(datetime(2000, 1, 1))
|
|
self.assertQuerysetEqual(
|
|
MySQLUnixTimestamp.objects.filter(timestamp__as_datetime__gt=y2k),
|
|
[ut], lambda x: x)
|
|
finally:
|
|
models.PositiveIntegerField._unregister_lookup(DateTimeTransform)
|
|
|
|
|
|
class YearLteTests(TestCase):
|
|
def setUp(self):
|
|
models.DateField.register_lookup(YearTransform)
|
|
self.a1 = Author.objects.create(name='a1', birthdate=date(1981, 2, 16))
|
|
self.a2 = Author.objects.create(name='a2', birthdate=date(2012, 2, 29))
|
|
self.a3 = Author.objects.create(name='a3', birthdate=date(2012, 1, 31))
|
|
self.a4 = Author.objects.create(name='a4', birthdate=date(2012, 3, 1))
|
|
|
|
def tearDown(self):
|
|
models.DateField._unregister_lookup(YearTransform)
|
|
|
|
@unittest.skipUnless(connection.vendor == 'postgresql', "PostgreSQL specific SQL used")
|
|
def test_year_lte(self):
|
|
baseqs = Author.objects.order_by('name')
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(birthdate__testyear__lte=2012),
|
|
[self.a1, self.a2, self.a3, self.a4], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(birthdate__testyear=2012),
|
|
[self.a2, self.a3, self.a4], lambda x: x)
|
|
|
|
self.assertNotIn('BETWEEN', str(baseqs.filter(birthdate__testyear=2012).query))
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(birthdate__testyear__lte=2011),
|
|
[self.a1], lambda x: x)
|
|
# The non-optimized version works, too.
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(birthdate__testyear__lt=2012),
|
|
[self.a1], lambda x: x)
|
|
|
|
@unittest.skipUnless(connection.vendor == 'postgresql', "PostgreSQL specific SQL used")
|
|
def test_year_lte_fexpr(self):
|
|
self.a2.age = 2011
|
|
self.a2.save()
|
|
self.a3.age = 2012
|
|
self.a3.save()
|
|
self.a4.age = 2013
|
|
self.a4.save()
|
|
baseqs = Author.objects.order_by('name')
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(birthdate__testyear__lte=models.F('age')),
|
|
[self.a3, self.a4], lambda x: x)
|
|
self.assertQuerysetEqual(
|
|
baseqs.filter(birthdate__testyear__lt=models.F('age')),
|
|
[self.a4], lambda x: x)
|
|
|
|
def test_year_lte_sql(self):
|
|
# This test will just check the generated SQL for __lte. This
|
|
# doesn't require running on PostgreSQL and spots the most likely
|
|
# error - not running YearLte SQL at all.
|
|
baseqs = Author.objects.order_by('name')
|
|
self.assertIn(
|
|
'<= (2011 || ', str(baseqs.filter(birthdate__testyear__lte=2011).query))
|
|
self.assertIn(
|
|
'-12-31', str(baseqs.filter(birthdate__testyear__lte=2011).query))
|
|
|
|
def test_postgres_year_exact(self):
|
|
baseqs = Author.objects.order_by('name')
|
|
self.assertIn(
|
|
'= (2011 || ', str(baseqs.filter(birthdate__testyear=2011).query))
|
|
self.assertIn(
|
|
'-12-31', str(baseqs.filter(birthdate__testyear=2011).query))
|
|
|
|
def test_custom_implementation_year_exact(self):
|
|
try:
|
|
# Two ways to add a customized implementation for different backends:
|
|
# First is MonkeyPatch of the class.
|
|
def as_custom_sql(self, compiler, connection):
|
|
lhs_sql, lhs_params = self.process_lhs(compiler, connection, self.lhs.lhs)
|
|
rhs_sql, rhs_params = self.process_rhs(compiler, connection)
|
|
params = lhs_params + rhs_params + lhs_params + rhs_params
|
|
return ("%(lhs)s >= str_to_date(concat(%(rhs)s, '-01-01'), '%%%%Y-%%%%m-%%%%d') "
|
|
"AND %(lhs)s <= str_to_date(concat(%(rhs)s, '-12-31'), '%%%%Y-%%%%m-%%%%d')" %
|
|
{'lhs': lhs_sql, 'rhs': rhs_sql}, params)
|
|
setattr(YearExact, 'as_' + connection.vendor, as_custom_sql)
|
|
self.assertIn(
|
|
'concat(',
|
|
str(Author.objects.filter(birthdate__testyear=2012).query))
|
|
finally:
|
|
delattr(YearExact, 'as_' + connection.vendor)
|
|
try:
|
|
# The other way is to subclass the original lookup and register the subclassed
|
|
# lookup instead of the original.
|
|
class CustomYearExact(YearExact):
|
|
# This method should be named "as_mysql" for MySQL, "as_postgresql" for postgres
|
|
# and so on, but as we don't know which DB we are running on, we need to use
|
|
# setattr.
|
|
def as_custom_sql(self, compiler, connection):
|
|
lhs_sql, lhs_params = self.process_lhs(compiler, connection, self.lhs.lhs)
|
|
rhs_sql, rhs_params = self.process_rhs(compiler, connection)
|
|
params = lhs_params + rhs_params + lhs_params + rhs_params
|
|
return ("%(lhs)s >= str_to_date(CONCAT(%(rhs)s, '-01-01'), '%%%%Y-%%%%m-%%%%d') "
|
|
"AND %(lhs)s <= str_to_date(CONCAT(%(rhs)s, '-12-31'), '%%%%Y-%%%%m-%%%%d')" %
|
|
{'lhs': lhs_sql, 'rhs': rhs_sql}, params)
|
|
setattr(CustomYearExact, 'as_' + connection.vendor, CustomYearExact.as_custom_sql)
|
|
YearTransform.register_lookup(CustomYearExact)
|
|
self.assertIn(
|
|
'CONCAT(',
|
|
str(Author.objects.filter(birthdate__testyear=2012).query))
|
|
finally:
|
|
YearTransform._unregister_lookup(CustomYearExact)
|
|
YearTransform.register_lookup(YearExact)
|
|
|
|
|
|
class TrackCallsYearTransform(YearTransform):
|
|
# Use a name that avoids collision with the built-in year lookup.
|
|
lookup_name = 'testyear'
|
|
call_order = []
|
|
|
|
def as_sql(self, compiler, connection):
|
|
lhs_sql, params = compiler.compile(self.lhs)
|
|
return connection.ops.date_extract_sql('year', lhs_sql), params
|
|
|
|
@property
|
|
def output_field(self):
|
|
return models.IntegerField()
|
|
|
|
def get_lookup(self, lookup_name):
|
|
self.call_order.append('lookup')
|
|
return super(TrackCallsYearTransform, self).get_lookup(lookup_name)
|
|
|
|
def get_transform(self, lookup_name):
|
|
self.call_order.append('transform')
|
|
return super(TrackCallsYearTransform, self).get_transform(lookup_name)
|
|
|
|
|
|
class LookupTransformCallOrderTests(TestCase):
|
|
def test_call_order(self):
|
|
models.DateField.register_lookup(TrackCallsYearTransform)
|
|
try:
|
|
# junk lookup - tries lookup, then transform, then fails
|
|
with self.assertRaises(FieldError):
|
|
Author.objects.filter(birthdate__testyear__junk=2012)
|
|
self.assertEqual(TrackCallsYearTransform.call_order,
|
|
['lookup', 'transform'])
|
|
TrackCallsYearTransform.call_order = []
|
|
# junk transform - tries transform only, then fails
|
|
with self.assertRaises(FieldError):
|
|
Author.objects.filter(birthdate__testyear__junk__more_junk=2012)
|
|
self.assertEqual(TrackCallsYearTransform.call_order,
|
|
['transform'])
|
|
TrackCallsYearTransform.call_order = []
|
|
# Just getting the year (implied __exact) - lookup only
|
|
Author.objects.filter(birthdate__testyear=2012)
|
|
self.assertEqual(TrackCallsYearTransform.call_order,
|
|
['lookup'])
|
|
TrackCallsYearTransform.call_order = []
|
|
# Just getting the year (explicit __exact) - lookup only
|
|
Author.objects.filter(birthdate__testyear__exact=2012)
|
|
self.assertEqual(TrackCallsYearTransform.call_order,
|
|
['lookup'])
|
|
|
|
finally:
|
|
models.DateField._unregister_lookup(TrackCallsYearTransform)
|
|
|
|
|
|
class CustomisedMethodsTests(TestCase):
|
|
|
|
def test_overridden_get_lookup(self):
|
|
q = CustomModel.objects.filter(field__lookupfunc_monkeys=3)
|
|
self.assertIn('monkeys()', str(q.query))
|
|
|
|
def test_overridden_get_transform(self):
|
|
q = CustomModel.objects.filter(field__transformfunc_banana=3)
|
|
self.assertIn('banana()', str(q.query))
|
|
|
|
def test_overridden_get_lookup_chain(self):
|
|
q = CustomModel.objects.filter(field__transformfunc_banana__lookupfunc_elephants=3)
|
|
self.assertIn('elephants()', str(q.query))
|
|
|
|
def test_overridden_get_transform_chain(self):
|
|
q = CustomModel.objects.filter(field__transformfunc_banana__transformfunc_pear=3)
|
|
self.assertIn('pear()', str(q.query))
|