688 lines
31 KiB
Python
688 lines
31 KiB
Python
from __future__ import absolute_import, unicode_literals
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from datetime import datetime
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from operator import attrgetter
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from django.core.exceptions import FieldError
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from django.test import TestCase, skipUnlessDBFeature
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from django.utils import six
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from shared_models.models import Author, Book
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from .models import Tag, Game, Season, Player
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class LookupTests(TestCase):
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def setUp(self):
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# Create a few Authors.
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self.au1 = Author(name='Author 1')
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self.au1.save()
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self.au2 = Author(name='Author 2')
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self.au2.save()
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# Create a couple of Books.
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self.b1 = Book(title='Book 1', pubdate=datetime(2005, 7, 26), author=self.au1)
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self.b1.save()
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self.b2 = Book(title='Book 2', pubdate=datetime(2005, 7, 27), author=self.au1)
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self.b2.save()
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self.b3 = Book(title='Book 3', pubdate=datetime(2005, 7, 27), author=self.au1)
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self.b3.save()
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self.b4 = Book(title='Book 4', pubdate=datetime(2005, 7, 28), author=self.au1)
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self.b4.save()
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self.b5 = Book(title='Book 5', pubdate=datetime(2005, 8, 1, 9, 0), author=self.au2)
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self.b5.save()
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self.b6 = Book(title='Book 6', pubdate=datetime(2005, 8, 1, 8, 0), author=self.au2)
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self.b6.save()
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self.b7 = Book(title='Book 7', pubdate=datetime(2005, 7, 27), author=self.au2)
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self.b7.save()
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# Create a few Tags.
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self.t1 = Tag(name='Tag 1')
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self.t1.save()
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self.t1.articles.add(self.b1, self.b2, self.b3)
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self.t2 = Tag(name='Tag 2')
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self.t2.save()
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self.t2.articles.add(self.b3, self.b4, self.b5)
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self.t3 = Tag(name='Tag 3')
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self.t3.save()
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self.t3.articles.add(self.b5, self.b6, self.b7)
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def test_exists(self):
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# We can use .exists() to check that there are some
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self.assertTrue(Book.objects.exists())
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for a in Book.objects.all():
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a.delete()
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# There should be none now!
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self.assertFalse(Book.objects.exists())
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def test_lookup_int_as_str(self):
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# Integer value can be queried using string
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self.assertQuerysetEqual(Book.objects.filter(id__iexact=str(self.b1.id)),
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['<Book: Book 1>'])
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@skipUnlessDBFeature('supports_date_lookup_using_string')
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def test_lookup_date_as_str(self):
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# A date lookup can be performed using a string search
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self.assertQuerysetEqual(Book.objects.filter(pubdate__startswith='2005'),
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[
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'<Book: Book 5>',
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'<Book: Book 6>',
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'<Book: Book 4>',
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'<Book: Book 2>',
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'<Book: Book 3>',
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'<Book: Book 7>',
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'<Book: Book 1>',
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])
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def test_iterator(self):
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# Each QuerySet gets iterator(), which is a generator that "lazily"
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# returns results using database-level iteration.
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self.assertQuerysetEqual(Book.objects.iterator(),
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[
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'Book 5',
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'Book 6',
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'Book 4',
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'Book 2',
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'Book 3',
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'Book 7',
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'Book 1',
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],
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transform=attrgetter('title'))
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# iterator() can be used on any QuerySet.
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self.assertQuerysetEqual(
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Book.objects.filter(title__endswith='4').iterator(),
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['Book 4'],
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transform=attrgetter('title'))
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def test_count(self):
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# count() returns the number of objects matching search criteria.
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self.assertEqual(Book.objects.count(), 7)
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self.assertEqual(Book.objects.filter(pubdate__exact=datetime(2005, 7, 27)).count(), 3)
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self.assertEqual(Book.objects.filter(title__startswith='Blah blah').count(), 0)
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# count() should respect sliced query sets.
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articles = Book.objects.all()
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self.assertEqual(articles.count(), 7)
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self.assertEqual(articles[:4].count(), 4)
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self.assertEqual(articles[1:100].count(), 6)
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self.assertEqual(articles[10:100].count(), 0)
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# Date and date/time lookups can also be done with strings.
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self.assertEqual(Book.objects.filter(pubdate__exact='2005-07-27').count(), 3)
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def test_in_bulk(self):
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# in_bulk() takes a list of IDs and returns a dictionary mapping IDs to objects.
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arts = Book.objects.in_bulk([self.b1.id, self.b2.id])
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self.assertEqual(arts[self.b1.id], self.b1)
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self.assertEqual(arts[self.b2.id], self.b2)
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self.assertEqual(Book.objects.in_bulk([self.b3.id]), {self.b3.id: self.b3})
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self.assertEqual(Book.objects.in_bulk(set([self.b3.id])), {self.b3.id: self.b3})
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self.assertEqual(Book.objects.in_bulk(frozenset([self.b3.id])), {self.b3.id: self.b3})
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self.assertEqual(Book.objects.in_bulk((self.b3.id,)), {self.b3.id: self.b3})
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self.assertEqual(Book.objects.in_bulk([1000]), {})
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self.assertEqual(Book.objects.in_bulk([]), {})
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self.assertEqual(Book.objects.in_bulk(iter([self.b1.id])), {self.b1.id: self.b1})
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self.assertEqual(Book.objects.in_bulk(iter([])), {})
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self.assertRaises(TypeError, Book.objects.in_bulk)
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self.assertRaises(TypeError, Book.objects.in_bulk, name__startswith='Blah')
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def test_values(self):
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# values() returns a list of dictionaries instead of object instances --
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# and you can specify which fields you want to retrieve.
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identity = lambda x:x
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self.assertQuerysetEqual(Book.objects.values('title'),
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[
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{'title': 'Book 5'},
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{'title': 'Book 6'},
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{'title': 'Book 4'},
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{'title': 'Book 2'},
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{'title': 'Book 3'},
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{'title': 'Book 7'},
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{'title': 'Book 1'},
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],
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transform=identity)
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self.assertQuerysetEqual(
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Book.objects.filter(pubdate__exact=datetime(2005, 7, 27)).values('id'),
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[{'id': self.b2.id}, {'id': self.b3.id}, {'id': self.b7.id}],
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transform=identity)
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self.assertQuerysetEqual(Book.objects.values('id', 'title'),
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[
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{'id': self.b5.id, 'title': 'Book 5'},
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{'id': self.b6.id, 'title': 'Book 6'},
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{'id': self.b4.id, 'title': 'Book 4'},
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{'id': self.b2.id, 'title': 'Book 2'},
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{'id': self.b3.id, 'title': 'Book 3'},
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{'id': self.b7.id, 'title': 'Book 7'},
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{'id': self.b1.id, 'title': 'Book 1'},
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],
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transform=identity)
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# You can use values() with iterator() for memory savings,
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# because iterator() uses database-level iteration.
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self.assertQuerysetEqual(Book.objects.values('id', 'title').iterator(),
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[
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{'title': 'Book 5', 'id': self.b5.id},
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{'title': 'Book 6', 'id': self.b6.id},
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{'title': 'Book 4', 'id': self.b4.id},
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{'title': 'Book 2', 'id': self.b2.id},
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{'title': 'Book 3', 'id': self.b3.id},
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{'title': 'Book 7', 'id': self.b7.id},
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{'title': 'Book 1', 'id': self.b1.id},
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],
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transform=identity)
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# The values() method works with "extra" fields specified in extra(select).
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self.assertQuerysetEqual(
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Book.objects.extra(select={'id_plus_one': 'id + 1'}).values('id', 'id_plus_one'),
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[
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{'id': self.b5.id, 'id_plus_one': self.b5.id + 1},
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{'id': self.b6.id, 'id_plus_one': self.b6.id + 1},
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{'id': self.b4.id, 'id_plus_one': self.b4.id + 1},
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{'id': self.b2.id, 'id_plus_one': self.b2.id + 1},
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{'id': self.b3.id, 'id_plus_one': self.b3.id + 1},
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{'id': self.b7.id, 'id_plus_one': self.b7.id + 1},
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{'id': self.b1.id, 'id_plus_one': self.b1.id + 1},
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],
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transform=identity)
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data = {
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'id_plus_one': 'id+1',
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'id_plus_two': 'id+2',
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'id_plus_three': 'id+3',
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'id_plus_four': 'id+4',
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'id_plus_five': 'id+5',
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'id_plus_six': 'id+6',
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'id_plus_seven': 'id+7',
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'id_plus_eight': 'id+8',
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}
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self.assertQuerysetEqual(
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Book.objects.filter(id=self.b1.id).extra(select=data).values(*data.keys()),
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[{
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'id_plus_one': self.b1.id + 1,
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'id_plus_two': self.b1.id + 2,
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'id_plus_three': self.b1.id + 3,
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'id_plus_four': self.b1.id + 4,
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'id_plus_five': self.b1.id + 5,
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'id_plus_six': self.b1.id + 6,
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'id_plus_seven': self.b1.id + 7,
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'id_plus_eight': self.b1.id + 8,
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}], transform=identity)
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# You can specify fields from forward and reverse relations, just like filter().
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self.assertQuerysetEqual(
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Book.objects.values('title', 'author__name'),
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[
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{'title': self.b5.title, 'author__name': self.au2.name},
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{'title': self.b6.title, 'author__name': self.au2.name},
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{'title': self.b4.title, 'author__name': self.au1.name},
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{'title': self.b2.title, 'author__name': self.au1.name},
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{'title': self.b3.title, 'author__name': self.au1.name},
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{'title': self.b7.title, 'author__name': self.au2.name},
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{'title': self.b1.title, 'author__name': self.au1.name},
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], transform=identity)
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self.assertQuerysetEqual(
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Author.objects.values('name', 'book__title').order_by('name', 'book__title'),
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[
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{'name': self.au1.name, 'book__title': self.b1.title},
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{'name': self.au1.name, 'book__title': self.b2.title},
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{'name': self.au1.name, 'book__title': self.b3.title},
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{'name': self.au1.name, 'book__title': self.b4.title},
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{'name': self.au2.name, 'book__title': self.b5.title},
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{'name': self.au2.name, 'book__title': self.b6.title},
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{'name': self.au2.name, 'book__title': self.b7.title},
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], transform=identity)
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self.assertQuerysetEqual(
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Author.objects.values('name', 'book__title', 'book__tag__name').order_by('name', 'book__title', 'book__tag__name'),
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[
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{'name': self.au1.name, 'book__title': self.b1.title, 'book__tag__name': self.t1.name},
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{'name': self.au1.name, 'book__title': self.b2.title, 'book__tag__name': self.t1.name},
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{'name': self.au1.name, 'book__title': self.b3.title, 'book__tag__name': self.t1.name},
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{'name': self.au1.name, 'book__title': self.b3.title, 'book__tag__name': self.t2.name},
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{'name': self.au1.name, 'book__title': self.b4.title, 'book__tag__name': self.t2.name},
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{'name': self.au2.name, 'book__title': self.b5.title, 'book__tag__name': self.t2.name},
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{'name': self.au2.name, 'book__title': self.b5.title, 'book__tag__name': self.t3.name},
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{'name': self.au2.name, 'book__title': self.b6.title, 'book__tag__name': self.t3.name},
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{'name': self.au2.name, 'book__title': self.b7.title, 'book__tag__name': self.t3.name},
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], transform=identity)
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# However, an exception FieldDoesNotExist will be thrown if you specify
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# a non-existent field name in values() (a field that is neither in the
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# model nor in extra(select)).
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self.assertRaises(FieldError,
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Book.objects.extra(select={'id_plus_one': 'id + 1'}).values,
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'id', 'id_plus_two')
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# If you don't specify field names to values(), all are returned.
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self.assertQuerysetEqual(Book.objects.filter(id=self.b5.id).values(),
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[{
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'id': self.b5.id,
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'author_id': self.au2.id,
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'title': 'Book 5',
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'pages': 0,
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'pubdate': datetime(2005, 8, 1, 9, 0)
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}], transform=identity)
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def test_values_list(self):
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# values_list() is similar to values(), except that the results are
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# returned as a list of tuples, rather than a list of dictionaries.
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# Within each tuple, the order of the elements is the same as the order
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# of fields in the values_list() call.
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identity = lambda x:x
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self.assertQuerysetEqual(Book.objects.values_list('title'),
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[
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('Book 5',),
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('Book 6',),
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('Book 4',),
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('Book 2',),
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('Book 3',),
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('Book 7',),
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('Book 1',),
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], transform=identity)
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self.assertQuerysetEqual(Book.objects.values_list('id').order_by('id'),
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[(self.b1.id,), (self.b2.id,), (self.b3.id,), (self.b4.id,), (self.b5.id,), (self.b6.id,), (self.b7.id,)],
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transform=identity)
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self.assertQuerysetEqual(
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Book.objects.values_list('id', flat=True).order_by('id'),
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[self.b1.id, self.b2.id, self.b3.id, self.b4.id, self.b5.id, self.b6.id, self.b7.id],
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transform=identity)
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self.assertQuerysetEqual(
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Book.objects.extra(select={'id_plus_one': 'id+1'})
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.order_by('id').values_list('id'),
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[(self.b1.id,), (self.b2.id,), (self.b3.id,), (self.b4.id,), (self.b5.id,), (self.b6.id,), (self.b7.id,)],
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transform=identity)
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self.assertQuerysetEqual(
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Book.objects.extra(select={'id_plus_one': 'id+1'})
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.order_by('id').values_list('id_plus_one', 'id'),
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[
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(self.b1.id+1, self.b1.id),
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(self.b2.id+1, self.b2.id),
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(self.b3.id+1, self.b3.id),
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(self.b4.id+1, self.b4.id),
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(self.b5.id+1, self.b5.id),
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(self.b6.id+1, self.b6.id),
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(self.b7.id+1, self.b7.id)
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],
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transform=identity)
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self.assertQuerysetEqual(
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Book.objects.extra(select={'id_plus_one': 'id+1'})
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.order_by('id').values_list('id', 'id_plus_one'),
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[
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(self.b1.id, self.b1.id+1),
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(self.b2.id, self.b2.id+1),
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(self.b3.id, self.b3.id+1),
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(self.b4.id, self.b4.id+1),
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(self.b5.id, self.b5.id+1),
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(self.b6.id, self.b6.id+1),
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(self.b7.id, self.b7.id+1)
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],
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transform=identity)
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self.assertQuerysetEqual(
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Author.objects.values_list('name', 'book__title', 'book__tag__name').order_by('name', 'book__title', 'book__tag__name'),
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[
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(self.au1.name, self.b1.title, self.t1.name),
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(self.au1.name, self.b2.title, self.t1.name),
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(self.au1.name, self.b3.title, self.t1.name),
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(self.au1.name, self.b3.title, self.t2.name),
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(self.au1.name, self.b4.title, self.t2.name),
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(self.au2.name, self.b5.title, self.t2.name),
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(self.au2.name, self.b5.title, self.t3.name),
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(self.au2.name, self.b6.title, self.t3.name),
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(self.au2.name, self.b7.title, self.t3.name),
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], transform=identity)
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self.assertRaises(TypeError, Book.objects.values_list, 'id', 'title', flat=True)
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def test_get_next_previous_by(self):
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# Every DateField and DateTimeField creates get_next_by_FOO() and
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# get_previous_by_FOO() methods. In the case of identical date values,
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# these methods will use the ID as a fallback check. This guarantees
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# that no records are skipped or duplicated.
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self.assertEqual(repr(self.b1.get_next_by_pubdate()),
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'<Book: Book 2>')
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self.assertEqual(repr(self.b2.get_next_by_pubdate()),
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'<Book: Book 3>')
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self.assertEqual(repr(self.b2.get_next_by_pubdate(title__endswith='6')),
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'<Book: Book 6>')
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self.assertEqual(repr(self.b3.get_next_by_pubdate()),
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'<Book: Book 7>')
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self.assertEqual(repr(self.b4.get_next_by_pubdate()),
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'<Book: Book 6>')
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self.assertRaises(Book.DoesNotExist, self.b5.get_next_by_pubdate)
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self.assertEqual(repr(self.b6.get_next_by_pubdate()),
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'<Book: Book 5>')
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self.assertEqual(repr(self.b7.get_next_by_pubdate()),
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'<Book: Book 4>')
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self.assertEqual(repr(self.b7.get_previous_by_pubdate()),
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'<Book: Book 3>')
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self.assertEqual(repr(self.b6.get_previous_by_pubdate()),
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'<Book: Book 4>')
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self.assertEqual(repr(self.b5.get_previous_by_pubdate()),
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'<Book: Book 6>')
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self.assertEqual(repr(self.b4.get_previous_by_pubdate()),
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'<Book: Book 7>')
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self.assertEqual(repr(self.b3.get_previous_by_pubdate()),
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'<Book: Book 2>')
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self.assertEqual(repr(self.b2.get_previous_by_pubdate()),
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'<Book: Book 1>')
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def test_escaping(self):
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# Underscores, percent signs and backslashes have special meaning in the
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# underlying SQL code, but Django handles the quoting of them automatically.
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b8 = Book(title='Book_ with underscore', pubdate=datetime(2005, 11, 20))
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b8.save()
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self.assertQuerysetEqual(Book.objects.filter(title__startswith='Book'),
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[
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'<Book: Book_ with underscore>',
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'<Book: Book 5>',
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'<Book: Book 6>',
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'<Book: Book 4>',
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'<Book: Book 2>',
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'<Book: Book 3>',
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'<Book: Book 7>',
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'<Book: Book 1>',
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])
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self.assertQuerysetEqual(Book.objects.filter(title__startswith='Book_'),
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['<Book: Book_ with underscore>'])
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b9 = Book(title='Book% with percent sign', pubdate=datetime(2005, 11, 21))
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b9.save()
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|
self.assertQuerysetEqual(Book.objects.filter(title__startswith='Book'),
|
|
[
|
|
'<Book: Book% with percent sign>',
|
|
'<Book: Book_ with underscore>',
|
|
'<Book: Book 5>',
|
|
'<Book: Book 6>',
|
|
'<Book: Book 4>',
|
|
'<Book: Book 2>',
|
|
'<Book: Book 3>',
|
|
'<Book: Book 7>',
|
|
'<Book: Book 1>',
|
|
])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__startswith='Book%'),
|
|
['<Book: Book% with percent sign>'])
|
|
b10 = Book(title='Book with \\ backslash', pubdate=datetime(2005, 11, 22))
|
|
b10.save()
|
|
self.assertQuerysetEqual(Book.objects.filter(title__contains='\\'),
|
|
['<Book: Book with \ backslash>'])
|
|
|
|
def test_exclude(self):
|
|
b8 = Book.objects.create(title='Book_ with underscore', pubdate=datetime(2005, 11, 20))
|
|
b9 = Book.objects.create(title='Book% with percent sign', pubdate=datetime(2005, 11, 21))
|
|
b10 = Book.objects.create(title='Book with \\ backslash', pubdate=datetime(2005, 11, 22))
|
|
|
|
# exclude() is the opposite of filter() when doing lookups:
|
|
self.assertQuerysetEqual(
|
|
Book.objects.filter(title__contains='Book').exclude(title__contains='with'),
|
|
[
|
|
'<Book: Book 5>',
|
|
'<Book: Book 6>',
|
|
'<Book: Book 4>',
|
|
'<Book: Book 2>',
|
|
'<Book: Book 3>',
|
|
'<Book: Book 7>',
|
|
'<Book: Book 1>',
|
|
])
|
|
self.assertQuerysetEqual(Book.objects.exclude(title__startswith="Book_"),
|
|
[
|
|
'<Book: Book with \\ backslash>',
|
|
'<Book: Book% with percent sign>',
|
|
'<Book: Book 5>',
|
|
'<Book: Book 6>',
|
|
'<Book: Book 4>',
|
|
'<Book: Book 2>',
|
|
'<Book: Book 3>',
|
|
'<Book: Book 7>',
|
|
'<Book: Book 1>',
|
|
])
|
|
self.assertQuerysetEqual(Book.objects.exclude(title="Book 7"),
|
|
[
|
|
'<Book: Book with \\ backslash>',
|
|
'<Book: Book% with percent sign>',
|
|
'<Book: Book_ with underscore>',
|
|
'<Book: Book 5>',
|
|
'<Book: Book 6>',
|
|
'<Book: Book 4>',
|
|
'<Book: Book 2>',
|
|
'<Book: Book 3>',
|
|
'<Book: Book 1>',
|
|
])
|
|
|
|
def test_none(self):
|
|
# none() returns a QuerySet that behaves like any other QuerySet object
|
|
self.assertQuerysetEqual(Book.objects.none(), [])
|
|
self.assertQuerysetEqual(
|
|
Book.objects.none().filter(title__startswith='Book'), [])
|
|
self.assertQuerysetEqual(
|
|
Book.objects.filter(title__startswith='Book').none(), [])
|
|
self.assertEqual(Book.objects.none().count(), 0)
|
|
self.assertEqual(
|
|
Book.objects.none().update(title="This should not take effect"), 0)
|
|
self.assertQuerysetEqual(
|
|
[article for article in Book.objects.none().iterator()],
|
|
[])
|
|
|
|
def test_in(self):
|
|
# using __in with an empty list should return an empty query set
|
|
self.assertQuerysetEqual(Book.objects.filter(id__in=[]), [])
|
|
self.assertQuerysetEqual(Book.objects.exclude(id__in=[]),
|
|
[
|
|
'<Book: Book 5>',
|
|
'<Book: Book 6>',
|
|
'<Book: Book 4>',
|
|
'<Book: Book 2>',
|
|
'<Book: Book 3>',
|
|
'<Book: Book 7>',
|
|
'<Book: Book 1>',
|
|
])
|
|
|
|
def test_error_messages(self):
|
|
# Programming errors are pointed out with nice error messages
|
|
with six.assertRaisesRegex(self, FieldError, "Cannot resolve keyword 'pubdate_year' "
|
|
"into field. Choices are: .+"):
|
|
Book.objects.filter(pubdate_year='2005').count()
|
|
|
|
with self.assertRaises(FieldError, msg="Join on field 'title' not permitted. "
|
|
"Did you misspell 'starts' for the lookup type?"):
|
|
Book.objects.filter(title__starts='Book')
|
|
|
|
def test_regex(self):
|
|
# Create some articles with a bit more interesting names for testing field lookups:
|
|
for a in Book.objects.all():
|
|
a.delete()
|
|
now = datetime.now()
|
|
b1 = Book(pubdate=now, title='f')
|
|
b1.save()
|
|
b2 = Book(pubdate=now, title='fo')
|
|
b2.save()
|
|
b3 = Book(pubdate=now, title='foo')
|
|
b3.save()
|
|
b4 = Book(pubdate=now, title='fooo')
|
|
b4.save()
|
|
b5 = Book(pubdate=now, title='hey-Foo')
|
|
b5.save()
|
|
b6 = Book(pubdate=now, title='bar')
|
|
b6.save()
|
|
b7 = Book(pubdate=now, title='AbBa')
|
|
b7.save()
|
|
b8 = Book(pubdate=now, title='baz')
|
|
b8.save()
|
|
b9 = Book(pubdate=now, title='baxZ')
|
|
b9.save()
|
|
# zero-or-more
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'fo*'),
|
|
['<Book: f>', '<Book: fo>', '<Book: foo>', '<Book: fooo>'])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__iregex=r'fo*'),
|
|
[
|
|
'<Book: f>',
|
|
'<Book: fo>',
|
|
'<Book: foo>',
|
|
'<Book: fooo>',
|
|
'<Book: hey-Foo>',
|
|
])
|
|
# one-or-more
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'fo+'),
|
|
['<Book: fo>', '<Book: foo>', '<Book: fooo>'])
|
|
# wildcard
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'fooo?'),
|
|
['<Book: foo>', '<Book: fooo>'])
|
|
# leading anchor
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'^b'),
|
|
['<Book: bar>', '<Book: baxZ>', '<Book: baz>'])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__iregex=r'^a'),
|
|
['<Book: AbBa>'])
|
|
# trailing anchor
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'z$'),
|
|
['<Book: baz>'])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__iregex=r'z$'),
|
|
['<Book: baxZ>', '<Book: baz>'])
|
|
# character sets
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'ba[rz]'),
|
|
['<Book: bar>', '<Book: baz>'])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'ba.[RxZ]'),
|
|
['<Book: baxZ>'])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__iregex=r'ba[RxZ]'),
|
|
['<Book: bar>', '<Book: baxZ>', '<Book: baz>'])
|
|
|
|
# and more articles:
|
|
b10 = Book(pubdate=now, title='foobar')
|
|
b10.save()
|
|
b11 = Book(pubdate=now, title='foobaz')
|
|
b11.save()
|
|
b12 = Book(pubdate=now, title='ooF')
|
|
b12.save()
|
|
b13 = Book(pubdate=now, title='foobarbaz')
|
|
b13.save()
|
|
b14 = Book(pubdate=now, title='zoocarfaz')
|
|
b14.save()
|
|
b15 = Book(pubdate=now, title='barfoobaz')
|
|
b15.save()
|
|
b16 = Book(pubdate=now, title='bazbaRFOO')
|
|
b16.save()
|
|
|
|
# alternation
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'oo(f|b)'),
|
|
[
|
|
'<Book: barfoobaz>',
|
|
'<Book: foobar>',
|
|
'<Book: foobarbaz>',
|
|
'<Book: foobaz>',
|
|
])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__iregex=r'oo(f|b)'),
|
|
[
|
|
'<Book: barfoobaz>',
|
|
'<Book: foobar>',
|
|
'<Book: foobarbaz>',
|
|
'<Book: foobaz>',
|
|
'<Book: ooF>',
|
|
])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'^foo(f|b)'),
|
|
['<Book: foobar>', '<Book: foobarbaz>', '<Book: foobaz>'])
|
|
|
|
# greedy matching
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'b.*az'),
|
|
[
|
|
'<Book: barfoobaz>',
|
|
'<Book: baz>',
|
|
'<Book: bazbaRFOO>',
|
|
'<Book: foobarbaz>',
|
|
'<Book: foobaz>',
|
|
])
|
|
self.assertQuerysetEqual(Book.objects.filter(title__iregex=r'b.*ar'),
|
|
[
|
|
'<Book: bar>',
|
|
'<Book: barfoobaz>',
|
|
'<Book: bazbaRFOO>',
|
|
'<Book: foobar>',
|
|
'<Book: foobarbaz>',
|
|
])
|
|
|
|
@skipUnlessDBFeature('supports_regex_backreferencing')
|
|
def test_regex_backreferencing(self):
|
|
# grouping and backreferences
|
|
now = datetime.now()
|
|
b10 = Book(pubdate=now, title='foobar')
|
|
b10.save()
|
|
b11 = Book(pubdate=now, title='foobaz')
|
|
b11.save()
|
|
b12 = Book(pubdate=now, title='ooF')
|
|
b12.save()
|
|
b13 = Book(pubdate=now, title='foobarbaz')
|
|
b13.save()
|
|
b14 = Book(pubdate=now, title='zoocarfaz')
|
|
b14.save()
|
|
b15 = Book(pubdate=now, title='barfoobaz')
|
|
b15.save()
|
|
b16 = Book(pubdate=now, title='bazbaRFOO')
|
|
b16.save()
|
|
self.assertQuerysetEqual(Book.objects.filter(title__regex=r'b(.).*b\1'),
|
|
['<Book: barfoobaz>', '<Book: bazbaRFOO>', '<Book: foobarbaz>'])
|
|
|
|
def test_nonfield_lookups(self):
|
|
"""
|
|
Ensure that a lookup query containing non-fields raises the proper
|
|
exception.
|
|
"""
|
|
with self.assertRaises(FieldError):
|
|
Book.objects.filter(name__blahblah=99)
|
|
with self.assertRaises(FieldError):
|
|
Book.objects.filter(name__blahblah__exact=99)
|
|
with self.assertRaises(FieldError):
|
|
Book.objects.filter(blahblah=99)
|
|
|
|
def test_lookup_collision(self):
|
|
"""
|
|
Ensure that genuine field names don't collide with built-in lookup
|
|
types ('year', 'gt', 'range', 'in' etc.).
|
|
Refs #11670.
|
|
"""
|
|
|
|
# Here we're using 'gt' as a code number for the year, e.g. 111=>2009.
|
|
season_2009 = Season.objects.create(year=2009, gt=111)
|
|
season_2009.games.create(home="Houston Astros", away="St. Louis Cardinals")
|
|
season_2010 = Season.objects.create(year=2010, gt=222)
|
|
season_2010.games.create(home="Houston Astros", away="Chicago Cubs")
|
|
season_2010.games.create(home="Houston Astros", away="Milwaukee Brewers")
|
|
season_2010.games.create(home="Houston Astros", away="St. Louis Cardinals")
|
|
season_2011 = Season.objects.create(year=2011, gt=333)
|
|
season_2011.games.create(home="Houston Astros", away="St. Louis Cardinals")
|
|
season_2011.games.create(home="Houston Astros", away="Milwaukee Brewers")
|
|
hunter_pence = Player.objects.create(name="Hunter Pence")
|
|
hunter_pence.games = Game.objects.filter(season__year__in=[2009, 2010])
|
|
pudge = Player.objects.create(name="Ivan Rodriquez")
|
|
pudge.games = Game.objects.filter(season__year=2009)
|
|
pedro_feliz = Player.objects.create(name="Pedro Feliz")
|
|
pedro_feliz.games = Game.objects.filter(season__year__in=[2011])
|
|
johnson = Player.objects.create(name="Johnson")
|
|
johnson.games = Game.objects.filter(season__year__in=[2011])
|
|
|
|
# Games in 2010
|
|
self.assertEqual(Game.objects.filter(season__year=2010).count(), 3)
|
|
self.assertEqual(Game.objects.filter(season__year__exact=2010).count(), 3)
|
|
self.assertEqual(Game.objects.filter(season__gt=222).count(), 3)
|
|
self.assertEqual(Game.objects.filter(season__gt__exact=222).count(), 3)
|
|
|
|
# Games in 2011
|
|
self.assertEqual(Game.objects.filter(season__year=2011).count(), 2)
|
|
self.assertEqual(Game.objects.filter(season__year__exact=2011).count(), 2)
|
|
self.assertEqual(Game.objects.filter(season__gt=333).count(), 2)
|
|
self.assertEqual(Game.objects.filter(season__gt__exact=333).count(), 2)
|
|
self.assertEqual(Game.objects.filter(season__year__gt=2010).count(), 2)
|
|
self.assertEqual(Game.objects.filter(season__gt__gt=222).count(), 2)
|
|
|
|
# Games played in 2010 and 2011
|
|
self.assertEqual(Game.objects.filter(season__year__in=[2010, 2011]).count(), 5)
|
|
self.assertEqual(Game.objects.filter(season__year__gt=2009).count(), 5)
|
|
self.assertEqual(Game.objects.filter(season__gt__in=[222, 333]).count(), 5)
|
|
self.assertEqual(Game.objects.filter(season__gt__gt=111).count(), 5)
|
|
|
|
# Players who played in 2009
|
|
self.assertEqual(Player.objects.filter(games__season__year=2009).distinct().count(), 2)
|
|
self.assertEqual(Player.objects.filter(games__season__year__exact=2009).distinct().count(), 2)
|
|
self.assertEqual(Player.objects.filter(games__season__gt=111).distinct().count(), 2)
|
|
self.assertEqual(Player.objects.filter(games__season__gt__exact=111).distinct().count(), 2)
|
|
|
|
# Players who played in 2010
|
|
self.assertEqual(Player.objects.filter(games__season__year=2010).distinct().count(), 1)
|
|
self.assertEqual(Player.objects.filter(games__season__year__exact=2010).distinct().count(), 1)
|
|
self.assertEqual(Player.objects.filter(games__season__gt=222).distinct().count(), 1)
|
|
self.assertEqual(Player.objects.filter(games__season__gt__exact=222).distinct().count(), 1)
|
|
|
|
# Players who played in 2011
|
|
self.assertEqual(Player.objects.filter(games__season__year=2011).distinct().count(), 2)
|
|
self.assertEqual(Player.objects.filter(games__season__year__exact=2011).distinct().count(), 2)
|
|
self.assertEqual(Player.objects.filter(games__season__gt=333).distinct().count(), 2)
|
|
self.assertEqual(Player.objects.filter(games__season__year__gt=2010).distinct().count(), 2)
|
|
self.assertEqual(Player.objects.filter(games__season__gt__gt=222).distinct().count(), 2)
|