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cbb5cdd155
The .dates() queries were implemented by using custom Query, QuerySet, and Compiler classes. Instead implement them by using expressions and database converters APIs.
123 lines
3.6 KiB
Python
123 lines
3.6 KiB
Python
from __future__ import unicode_literals
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import datetime
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from django.core.exceptions import FieldError
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from django.test import TestCase
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from django.utils import six
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from .models import Article, Comment, Category
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class DatesTests(TestCase):
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def test_related_model_traverse(self):
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a1 = Article.objects.create(
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title="First one",
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pub_date=datetime.date(2005, 7, 28),
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)
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a2 = Article.objects.create(
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title="Another one",
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pub_date=datetime.date(2010, 7, 28),
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)
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a3 = Article.objects.create(
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title="Third one, in the first day",
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pub_date=datetime.date(2005, 7, 28),
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)
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a1.comments.create(
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text="Im the HULK!",
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pub_date=datetime.date(2005, 7, 28),
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)
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a1.comments.create(
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text="HULK SMASH!",
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pub_date=datetime.date(2005, 7, 29),
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)
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a2.comments.create(
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text="LMAO",
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pub_date=datetime.date(2010, 7, 28),
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)
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a3.comments.create(
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text="+1",
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pub_date=datetime.date(2005, 8, 29),
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)
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c = Category.objects.create(name="serious-news")
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c.articles.add(a1, a3)
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self.assertQuerysetEqual(
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Comment.objects.dates("article__pub_date", "year"), [
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datetime.date(2005, 1, 1),
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datetime.date(2010, 1, 1),
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],
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lambda d: d,
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)
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self.assertQuerysetEqual(
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Comment.objects.dates("article__pub_date", "month"), [
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datetime.date(2005, 7, 1),
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datetime.date(2010, 7, 1),
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],
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lambda d: d
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)
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self.assertQuerysetEqual(
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Comment.objects.dates("article__pub_date", "day"), [
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datetime.date(2005, 7, 28),
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datetime.date(2010, 7, 28),
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],
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lambda d: d
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)
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self.assertQuerysetEqual(
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Article.objects.dates("comments__pub_date", "day"), [
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datetime.date(2005, 7, 28),
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datetime.date(2005, 7, 29),
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datetime.date(2005, 8, 29),
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datetime.date(2010, 7, 28),
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],
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lambda d: d
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)
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self.assertQuerysetEqual(
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Article.objects.dates("comments__approval_date", "day"), []
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)
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self.assertQuerysetEqual(
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Category.objects.dates("articles__pub_date", "day"), [
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datetime.date(2005, 7, 28),
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],
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lambda d: d,
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)
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def test_dates_fails_when_no_arguments_are_provided(self):
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self.assertRaises(
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TypeError,
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Article.objects.dates,
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)
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def test_dates_fails_when_given_invalid_field_argument(self):
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six.assertRaisesRegex(
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self,
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FieldError,
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"Cannot resolve keyword u?'invalid_field' into field. Choices are: "
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"categories, comments, id, pub_date, title",
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Article.objects.dates,
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"invalid_field",
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"year",
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)
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def test_dates_fails_when_given_invalid_kind_argument(self):
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six.assertRaisesRegex(
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self,
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AssertionError,
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"'kind' must be one of 'year', 'month' or 'day'.",
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Article.objects.dates,
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"pub_date",
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"bad_kind",
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)
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def test_dates_fails_when_given_invalid_order_argument(self):
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six.assertRaisesRegex(
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self,
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AssertionError,
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"'order' must be either 'ASC' or 'DESC'.",
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Article.objects.dates,
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"pub_date",
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"year",
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order="bad order",
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)
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