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695 lines
35 KiB
Python
695 lines
35 KiB
Python
from __future__ import unicode_literals
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from datetime import datetime
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from unittest import skipIf
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from django.conf import settings
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from django.db import connection
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from django.db.models import DateField, DateTimeField, IntegerField
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from django.db.models.functions import (
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Extract, ExtractDay, ExtractHour, ExtractMinute, ExtractMonth,
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ExtractSecond, ExtractWeekDay, ExtractYear, Trunc, TruncDate, TruncDay,
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TruncHour, TruncMinute, TruncMonth, TruncSecond, TruncYear,
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)
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from django.test import TestCase, override_settings
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from django.utils import timezone
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from .models import DTModel
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try:
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import pytz
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except ImportError:
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pytz = None
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def microsecond_support(value):
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return value if connection.features.supports_microsecond_precision else value.replace(microsecond=0)
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def truncate_to(value, kind, tzinfo=None):
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# Convert to target timezone before truncation
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if tzinfo is not None:
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value = value.astimezone(tzinfo)
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def truncate(value, kind):
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if kind == 'second':
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return value.replace(microsecond=0)
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if kind == 'minute':
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return value.replace(second=0, microsecond=0)
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if kind == 'hour':
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return value.replace(minute=0, second=0, microsecond=0)
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if kind == 'day':
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if isinstance(value, datetime):
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return value.replace(hour=0, minute=0, second=0, microsecond=0)
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return value
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if kind == 'month':
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if isinstance(value, datetime):
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return value.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
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return value.replace(day=1)
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# otherwise, truncate to year
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if isinstance(value, datetime):
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return value.replace(month=1, day=1, hour=0, minute=0, second=0, microsecond=0)
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return value.replace(month=1, day=1)
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value = truncate(value, kind)
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if tzinfo is not None:
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# If there was a daylight saving transition, then reset the timezone.
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value = timezone.make_aware(value.replace(tzinfo=None), tzinfo)
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return value
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@override_settings(USE_TZ=False)
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class DateFunctionTests(TestCase):
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def create_model(self, start_datetime, end_datetime):
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return DTModel.objects.create(
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name=start_datetime.isoformat(),
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start_datetime=start_datetime, end_datetime=end_datetime,
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start_date=start_datetime.date(), end_date=end_datetime.date(),
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start_time=start_datetime.time(), end_time=end_datetime.time(),
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duration=(end_datetime - start_datetime),
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)
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def test_extract_year_exact_lookup(self):
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"""
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Extract year uses a BETWEEN filter to compare the year to allow indexes
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to be used.
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"""
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start_datetime = datetime(2015, 6, 15, 14, 10)
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end_datetime = datetime(2016, 6, 15, 14, 10)
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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qs = DTModel.objects.filter(start_datetime__year__exact=2015)
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self.assertEqual(qs.count(), 1)
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query_string = str(qs.query).lower()
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self.assertEqual(query_string.count(' between '), 1)
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self.assertEqual(query_string.count('extract'), 0)
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# exact is implied and should be the same
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qs = DTModel.objects.filter(start_datetime__year=2015)
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self.assertEqual(qs.count(), 1)
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query_string = str(qs.query).lower()
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self.assertEqual(query_string.count(' between '), 1)
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self.assertEqual(query_string.count('extract'), 0)
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# date and datetime fields should behave the same
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qs = DTModel.objects.filter(start_date__year=2015)
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self.assertEqual(qs.count(), 1)
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query_string = str(qs.query).lower()
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self.assertEqual(query_string.count(' between '), 1)
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self.assertEqual(query_string.count('extract'), 0)
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def test_extract_year_greaterthan_lookup(self):
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start_datetime = datetime(2015, 6, 15, 14, 10)
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end_datetime = datetime(2016, 6, 15, 14, 10)
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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qs = DTModel.objects.filter(start_datetime__year__gt=2015)
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self.assertEqual(qs.count(), 1)
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self.assertEqual(str(qs.query).lower().count('extract'), 0)
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qs = DTModel.objects.filter(start_datetime__year__gte=2015)
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self.assertEqual(qs.count(), 2)
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self.assertEqual(str(qs.query).lower().count('extract'), 0)
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def test_extract_year_lessthan_lookup(self):
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start_datetime = datetime(2015, 6, 15, 14, 10)
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end_datetime = datetime(2016, 6, 15, 14, 10)
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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qs = DTModel.objects.filter(start_datetime__year__lt=2016)
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self.assertEqual(qs.count(), 1)
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self.assertEqual(str(qs.query).count('extract'), 0)
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qs = DTModel.objects.filter(start_datetime__year__lte=2016)
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self.assertEqual(qs.count(), 2)
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self.assertEqual(str(qs.query).count('extract'), 0)
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def test_extract_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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with self.assertRaisesMessage(ValueError, 'lookup_name must be provided'):
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Extract('start_datetime')
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msg = 'Extract input expression must be DateField, DateTimeField, or TimeField.'
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with self.assertRaisesMessage(ValueError, msg):
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list(DTModel.objects.annotate(extracted=Extract('name', 'hour')))
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with self.assertRaisesMessage(
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ValueError, "Cannot extract time component 'second' from DateField 'start_date'."):
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list(DTModel.objects.annotate(extracted=Extract('start_date', 'second')))
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=Extract('start_datetime', 'year')).order_by('start_datetime'),
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[(start_datetime, start_datetime.year), (end_datetime, end_datetime.year)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=Extract('start_datetime', 'month')).order_by('start_datetime'),
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[(start_datetime, start_datetime.month), (end_datetime, end_datetime.month)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=Extract('start_datetime', 'day')).order_by('start_datetime'),
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[(start_datetime, start_datetime.day), (end_datetime, end_datetime.day)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=Extract('start_datetime', 'week_day')).order_by('start_datetime'),
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[
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(start_datetime, (start_datetime.isoweekday() % 7) + 1),
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(end_datetime, (end_datetime.isoweekday() % 7) + 1)
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],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=Extract('start_datetime', 'hour')).order_by('start_datetime'),
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[(start_datetime, start_datetime.hour), (end_datetime, end_datetime.hour)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=Extract('start_datetime', 'minute')).order_by('start_datetime'),
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[(start_datetime, start_datetime.minute), (end_datetime, end_datetime.minute)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=Extract('start_datetime', 'second')).order_by('start_datetime'),
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[(start_datetime, start_datetime.second), (end_datetime, end_datetime.second)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertEqual(DTModel.objects.filter(start_datetime__year=Extract('start_datetime', 'year')).count(), 2)
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self.assertEqual(DTModel.objects.filter(start_datetime__hour=Extract('start_datetime', 'hour')).count(), 2)
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self.assertEqual(DTModel.objects.filter(start_date__month=Extract('start_date', 'month')).count(), 2)
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self.assertEqual(DTModel.objects.filter(start_time__hour=Extract('start_time', 'hour')).count(), 2)
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def test_extract_year_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractYear('start_datetime')).order_by('start_datetime'),
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[(start_datetime, start_datetime.year), (end_datetime, end_datetime.year)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractYear('start_date')).order_by('start_datetime'),
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[(start_datetime, start_datetime.year), (end_datetime, end_datetime.year)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertEqual(DTModel.objects.filter(start_datetime__year=ExtractYear('start_datetime')).count(), 2)
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def test_extract_month_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractMonth('start_datetime')).order_by('start_datetime'),
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[(start_datetime, start_datetime.month), (end_datetime, end_datetime.month)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractMonth('start_date')).order_by('start_datetime'),
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[(start_datetime, start_datetime.month), (end_datetime, end_datetime.month)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertEqual(DTModel.objects.filter(start_datetime__month=ExtractMonth('start_datetime')).count(), 2)
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def test_extract_day_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractDay('start_datetime')).order_by('start_datetime'),
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[(start_datetime, start_datetime.day), (end_datetime, end_datetime.day)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractDay('start_date')).order_by('start_datetime'),
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[(start_datetime, start_datetime.day), (end_datetime, end_datetime.day)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertEqual(DTModel.objects.filter(start_datetime__day=ExtractDay('start_datetime')).count(), 2)
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def test_extract_weekday_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractWeekDay('start_datetime')).order_by('start_datetime'),
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[
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(start_datetime, (start_datetime.isoweekday() % 7) + 1),
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(end_datetime, (end_datetime.isoweekday() % 7) + 1),
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],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractWeekDay('start_date')).order_by('start_datetime'),
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[
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(start_datetime, (start_datetime.isoweekday() % 7) + 1),
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(end_datetime, (end_datetime.isoweekday() % 7) + 1),
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],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertEqual(DTModel.objects.filter(start_datetime__week_day=ExtractWeekDay('start_datetime')).count(), 2)
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def test_extract_hour_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractHour('start_datetime')).order_by('start_datetime'),
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[(start_datetime, start_datetime.hour), (end_datetime, end_datetime.hour)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractHour('start_time')).order_by('start_datetime'),
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[(start_datetime, start_datetime.hour), (end_datetime, end_datetime.hour)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertEqual(DTModel.objects.filter(start_datetime__hour=ExtractHour('start_datetime')).count(), 2)
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def test_extract_minute_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractMinute('start_datetime')).order_by('start_datetime'),
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[(start_datetime, start_datetime.minute), (end_datetime, end_datetime.minute)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractMinute('start_time')).order_by('start_datetime'),
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[(start_datetime, start_datetime.minute), (end_datetime, end_datetime.minute)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertEqual(DTModel.objects.filter(start_datetime__minute=ExtractMinute('start_datetime')).count(), 2)
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def test_extract_second_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractSecond('start_datetime')).order_by('start_datetime'),
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[(start_datetime, start_datetime.second), (end_datetime, end_datetime.second)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertQuerysetEqual(
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DTModel.objects.annotate(extracted=ExtractSecond('start_time')).order_by('start_datetime'),
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[(start_datetime, start_datetime.second), (end_datetime, end_datetime.second)],
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lambda m: (m.start_datetime, m.extracted)
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)
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self.assertEqual(DTModel.objects.filter(start_datetime__second=ExtractSecond('start_datetime')).count(), 2)
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def test_trunc_func(self):
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start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
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end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
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if settings.USE_TZ:
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start_datetime = timezone.make_aware(start_datetime, is_dst=False)
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end_datetime = timezone.make_aware(end_datetime, is_dst=False)
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self.create_model(start_datetime, end_datetime)
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self.create_model(end_datetime, start_datetime)
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with self.assertRaisesMessage(ValueError, 'output_field must be either DateField or DateTimeField'):
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list(DTModel.objects.annotate(truncated=Trunc('start_datetime', 'year', output_field=IntegerField())))
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with self.assertRaisesMessage(AssertionError, "'name' isn't a DateField or DateTimeField."):
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list(DTModel.objects.annotate(truncated=Trunc('name', 'year', output_field=DateTimeField())))
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with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
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list(DTModel.objects.annotate(truncated=Trunc('start_date', 'second')))
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with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
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list(DTModel.objects.annotate(truncated=Trunc('start_date', 'month', output_field=DateTimeField())))
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def test_datetime_kind(kind):
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self.assertQuerysetEqual(
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DTModel.objects.annotate(
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truncated=Trunc('start_datetime', kind, output_field=DateTimeField())
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).order_by('start_datetime'),
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[
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(start_datetime, truncate_to(start_datetime, kind)),
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(end_datetime, truncate_to(end_datetime, kind))
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],
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lambda m: (m.start_datetime, m.truncated)
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)
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def test_date_kind(kind):
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self.assertQuerysetEqual(
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DTModel.objects.annotate(
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truncated=Trunc('start_date', kind, output_field=DateField())
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|
).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime.date(), kind)),
|
|
(end_datetime, truncate_to(end_datetime.date(), kind))
|
|
],
|
|
lambda m: (m.start_datetime, m.truncated)
|
|
)
|
|
|
|
test_date_kind('year')
|
|
test_date_kind('month')
|
|
test_date_kind('day')
|
|
test_datetime_kind('year')
|
|
test_datetime_kind('month')
|
|
test_datetime_kind('day')
|
|
test_datetime_kind('hour')
|
|
test_datetime_kind('minute')
|
|
test_datetime_kind('second')
|
|
|
|
qs = DTModel.objects.filter(start_datetime__date=Trunc('start_datetime', 'day', output_field=DateField()))
|
|
self.assertEqual(qs.count(), 2)
|
|
|
|
def test_trunc_year_func(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
|
|
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'year')
|
|
if settings.USE_TZ:
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
self.create_model(end_datetime, start_datetime)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncYear('start_datetime')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime, 'year')),
|
|
(end_datetime, truncate_to(end_datetime, 'year')),
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncYear('start_date')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime.date(), 'year')),
|
|
(end_datetime, truncate_to(end_datetime.date(), 'year')),
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
self.assertEqual(DTModel.objects.filter(start_datetime=TruncYear('start_datetime')).count(), 1)
|
|
|
|
def test_trunc_month_func(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
|
|
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'month')
|
|
if settings.USE_TZ:
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
self.create_model(end_datetime, start_datetime)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncMonth('start_datetime')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime, 'month')),
|
|
(end_datetime, truncate_to(end_datetime, 'month')),
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncMonth('start_date')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime.date(), 'month')),
|
|
(end_datetime, truncate_to(end_datetime.date(), 'month')),
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
self.assertEqual(DTModel.objects.filter(start_datetime=TruncMonth('start_datetime')).count(), 1)
|
|
|
|
def test_trunc_date_func(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
|
|
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
|
|
if settings.USE_TZ:
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
self.create_model(end_datetime, start_datetime)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncDate('start_datetime')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, start_datetime.date()),
|
|
(end_datetime, end_datetime.date()),
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
self.assertEqual(DTModel.objects.filter(start_datetime__date=TruncDate('start_datetime')).count(), 2)
|
|
|
|
def test_trunc_day_func(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
|
|
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'day')
|
|
if settings.USE_TZ:
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
self.create_model(end_datetime, start_datetime)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncDay('start_datetime')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime, 'day')),
|
|
(end_datetime, truncate_to(end_datetime, 'day')),
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
self.assertEqual(DTModel.objects.filter(start_datetime=TruncDay('start_datetime')).count(), 1)
|
|
|
|
def test_trunc_hour_func(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
|
|
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'hour')
|
|
if settings.USE_TZ:
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
self.create_model(end_datetime, start_datetime)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncHour('start_datetime')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime, 'hour')),
|
|
(end_datetime, truncate_to(end_datetime, 'hour')),
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
self.assertEqual(DTModel.objects.filter(start_datetime=TruncHour('start_datetime')).count(), 1)
|
|
|
|
with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
|
|
list(DTModel.objects.annotate(truncated=TruncHour('start_date')))
|
|
|
|
with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
|
|
list(DTModel.objects.annotate(truncated=TruncHour('start_date', output_field=DateField())))
|
|
|
|
def test_trunc_minute_func(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
|
|
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'minute')
|
|
if settings.USE_TZ:
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
self.create_model(end_datetime, start_datetime)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncMinute('start_datetime')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime, 'minute')),
|
|
(end_datetime, truncate_to(end_datetime, 'minute')),
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
self.assertEqual(DTModel.objects.filter(start_datetime=TruncMinute('start_datetime')).count(), 1)
|
|
|
|
with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
|
|
list(DTModel.objects.annotate(truncated=TruncMinute('start_date')))
|
|
|
|
with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
|
|
list(DTModel.objects.annotate(truncated=TruncMinute('start_date', output_field=DateField())))
|
|
|
|
def test_trunc_second_func(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
|
|
end_datetime = truncate_to(microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123)), 'second')
|
|
if settings.USE_TZ:
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
self.create_model(end_datetime, start_datetime)
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(extracted=TruncSecond('start_datetime')).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime, 'second')),
|
|
(end_datetime, truncate_to(end_datetime, 'second'))
|
|
],
|
|
lambda m: (m.start_datetime, m.extracted)
|
|
)
|
|
|
|
result = 1 if connection.features.supports_microsecond_precision else 2
|
|
self.assertEqual(DTModel.objects.filter(start_datetime=TruncSecond('start_datetime')).count(), result)
|
|
|
|
with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
|
|
list(DTModel.objects.annotate(truncated=TruncSecond('start_date')))
|
|
|
|
with self.assertRaisesMessage(ValueError, "Cannot truncate DateField 'start_date' to DateTimeField"):
|
|
list(DTModel.objects.annotate(truncated=TruncSecond('start_date', output_field=DateField())))
|
|
|
|
|
|
@skipIf(pytz is None, "this test requires pytz")
|
|
@override_settings(USE_TZ=True, TIME_ZONE='UTC')
|
|
class DateFunctionWithTimeZoneTests(DateFunctionTests):
|
|
|
|
def test_extract_func_with_timezone(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 23, 30, 1, 321))
|
|
end_datetime = microsecond_support(datetime(2015, 6, 16, 13, 11, 27, 123))
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
melb = pytz.timezone('Australia/Melbourne')
|
|
|
|
qs = DTModel.objects.annotate(
|
|
day=Extract('start_datetime', 'day'),
|
|
day_melb=Extract('start_datetime', 'day', tzinfo=melb),
|
|
weekday=ExtractWeekDay('start_datetime'),
|
|
weekday_melb=ExtractWeekDay('start_datetime', tzinfo=melb),
|
|
hour=ExtractHour('start_datetime'),
|
|
hour_melb=ExtractHour('start_datetime', tzinfo=melb),
|
|
).order_by('start_datetime')
|
|
|
|
utc_model = qs.get()
|
|
self.assertEqual(utc_model.day, 15)
|
|
self.assertEqual(utc_model.day_melb, 16)
|
|
self.assertEqual(utc_model.weekday, 2)
|
|
self.assertEqual(utc_model.weekday_melb, 3)
|
|
self.assertEqual(utc_model.hour, 23)
|
|
self.assertEqual(utc_model.hour_melb, 9)
|
|
|
|
with timezone.override(melb):
|
|
melb_model = qs.get()
|
|
|
|
self.assertEqual(melb_model.day, 16)
|
|
self.assertEqual(melb_model.day_melb, 16)
|
|
self.assertEqual(melb_model.weekday, 3)
|
|
self.assertEqual(melb_model.weekday_melb, 3)
|
|
self.assertEqual(melb_model.hour, 9)
|
|
self.assertEqual(melb_model.hour_melb, 9)
|
|
|
|
def test_extract_func_explicit_timezone_priority(self):
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 23, 30, 1, 321))
|
|
end_datetime = microsecond_support(datetime(2015, 6, 16, 13, 11, 27, 123))
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
melb = pytz.timezone('Australia/Melbourne')
|
|
|
|
with timezone.override(melb):
|
|
model = DTModel.objects.annotate(
|
|
day_melb=Extract('start_datetime', 'day'),
|
|
day_utc=Extract('start_datetime', 'day', tzinfo=timezone.utc),
|
|
).order_by('start_datetime').get()
|
|
self.assertEqual(model.day_melb, 16)
|
|
self.assertEqual(model.day_utc, 15)
|
|
|
|
def test_trunc_timezone_applied_before_truncation(self):
|
|
start_datetime = microsecond_support(datetime(2016, 1, 1, 1, 30, 50, 321))
|
|
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
|
|
melb = pytz.timezone('Australia/Melbourne')
|
|
pacific = pytz.timezone('US/Pacific')
|
|
|
|
model = DTModel.objects.annotate(
|
|
melb_year=TruncYear('start_datetime', tzinfo=melb),
|
|
pacific_year=TruncYear('start_datetime', tzinfo=pacific),
|
|
).order_by('start_datetime').get()
|
|
|
|
self.assertEqual(model.start_datetime, start_datetime)
|
|
self.assertEqual(model.melb_year, truncate_to(start_datetime, 'year', melb))
|
|
self.assertEqual(model.pacific_year, truncate_to(start_datetime, 'year', pacific))
|
|
self.assertEqual(model.start_datetime.year, 2016)
|
|
self.assertEqual(model.melb_year.year, 2016)
|
|
self.assertEqual(model.pacific_year.year, 2015)
|
|
|
|
def test_trunc_func_with_timezone(self):
|
|
"""
|
|
If the truncated datetime transitions to a different offset (daylight
|
|
saving) then the returned value will have that new timezone/offset.
|
|
"""
|
|
start_datetime = microsecond_support(datetime(2015, 6, 15, 14, 30, 50, 321))
|
|
end_datetime = microsecond_support(datetime(2016, 6, 15, 14, 10, 50, 123))
|
|
start_datetime = timezone.make_aware(start_datetime, is_dst=False)
|
|
end_datetime = timezone.make_aware(end_datetime, is_dst=False)
|
|
self.create_model(start_datetime, end_datetime)
|
|
self.create_model(end_datetime, start_datetime)
|
|
|
|
melb = pytz.timezone('Australia/Melbourne')
|
|
|
|
def test_datetime_kind(kind, tzinfo=melb):
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(
|
|
truncated=Trunc('start_datetime', kind, output_field=DateTimeField(), tzinfo=melb)
|
|
).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime.astimezone(melb), kind, melb)),
|
|
(end_datetime, truncate_to(end_datetime.astimezone(melb), kind, melb))
|
|
],
|
|
lambda m: (m.start_datetime, m.truncated)
|
|
)
|
|
|
|
def test_date_kind(kind, tzinfo=melb):
|
|
self.assertQuerysetEqual(
|
|
DTModel.objects.annotate(
|
|
truncated=Trunc('start_date', kind, output_field=DateField(), tzinfo=melb)
|
|
).order_by('start_datetime'),
|
|
[
|
|
(start_datetime, truncate_to(start_datetime.date(), kind)),
|
|
(end_datetime, truncate_to(end_datetime.date(), kind))
|
|
],
|
|
lambda m: (m.start_datetime, m.truncated)
|
|
)
|
|
|
|
test_date_kind('year')
|
|
test_date_kind('month')
|
|
test_date_kind('day')
|
|
test_datetime_kind('year')
|
|
test_datetime_kind('month')
|
|
test_datetime_kind('day')
|
|
test_datetime_kind('hour')
|
|
test_datetime_kind('minute')
|
|
test_datetime_kind('second')
|
|
|
|
qs = DTModel.objects.filter(start_datetime__date=Trunc('start_datetime', 'day', output_field=DateField()))
|
|
self.assertEqual(qs.count(), 2)
|