Python functions.Upper方法代码示例

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_order_by_nulls_last(self):
        self.skipTest("TODO fix django.db.utils.ProgrammingError: Incorrect syntax near 'NULLS'.")
        Article.objects.filter(headline="Article 3").update(author=self.author_1)
        Article.objects.filter(headline="Article 4").update(author=self.author_2)
        # asc and desc are chainable with nulls_last.
        self.assertSequenceEqual(
            Article.objects.order_by(F("author").desc(nulls_last=True)),
            [self.a4, self.a3, self.a1, self.a2],
        )
        self.assertSequenceEqual(
            Article.objects.order_by(F("author").asc(nulls_last=True)),
            [self.a3, self.a4, self.a1, self.a2],
        )
        self.assertSequenceEqual(
            Article.objects.order_by(Upper("author__name").desc(nulls_last=True)),
            [self.a4, self.a3, self.a1, self.a2],
        )
        self.assertSequenceEqual(
            Article.objects.order_by(Upper("author__name").asc(nulls_last=True)),
            [self.a3, self.a4, self.a1, self.a2],
        ) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_order_by_nulls_first(self):
        self.skipTest("TODO fix django.db.utils.ProgrammingError: Incorrect syntax near 'NULLS'.")
        Article.objects.filter(headline="Article 3").update(author=self.author_1)
        Article.objects.filter(headline="Article 4").update(author=self.author_2)
        # asc and desc are chainable with nulls_first.
        self.assertSequenceEqual(
            Article.objects.order_by(F("author").asc(nulls_first=True)),
            [self.a1, self.a2, self.a3, self.a4],
        )
        self.assertSequenceEqual(
            Article.objects.order_by(F("author").desc(nulls_first=True)),
            [self.a1, self.a2, self.a4, self.a3],
        )
        self.assertSequenceEqual(
            Article.objects.order_by(Upper("author__name").asc(nulls_first=True)),
            [self.a1, self.a2, self.a3, self.a4],
        )
        self.assertSequenceEqual(
            Article.objects.order_by(Upper("author__name").desc(nulls_first=True)),
            [self.a1, self.a2, self.a4, self.a3],
        ) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_order_by_nulls_last(self):
        Article.objects.filter(headline="Article 3").update(author=self.author_1)
        Article.objects.filter(headline="Article 4").update(author=self.author_2)
        # asc and desc are chainable with nulls_last.
        self.assertQuerysetEqualReversible(
            Article.objects.order_by(F("author").desc(nulls_last=True), 'headline'),
            [self.a4, self.a3, self.a1, self.a2],
        )
        self.assertQuerysetEqualReversible(
            Article.objects.order_by(F("author").asc(nulls_last=True), 'headline'),
            [self.a3, self.a4, self.a1, self.a2],
        )
        self.assertQuerysetEqualReversible(
            Article.objects.order_by(Upper("author__name").desc(nulls_last=True), 'headline'),
            [self.a4, self.a3, self.a1, self.a2],
        )
        self.assertQuerysetEqualReversible(
            Article.objects.order_by(Upper("author__name").asc(nulls_last=True), 'headline'),
            [self.a3, self.a4, self.a1, self.a2],
        ) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_order_by_nulls_first(self):
        Article.objects.filter(headline="Article 3").update(author=self.author_1)
        Article.objects.filter(headline="Article 4").update(author=self.author_2)
        # asc and desc are chainable with nulls_first.
        self.assertQuerysetEqualReversible(
            Article.objects.order_by(F("author").asc(nulls_first=True), 'headline'),
            [self.a1, self.a2, self.a3, self.a4],
        )
        self.assertQuerysetEqualReversible(
            Article.objects.order_by(F("author").desc(nulls_first=True), 'headline'),
            [self.a1, self.a2, self.a4, self.a3],
        )
        self.assertQuerysetEqualReversible(
            Article.objects.order_by(Upper("author__name").asc(nulls_first=True), 'headline'),
            [self.a1, self.a2, self.a3, self.a4],
        )
        self.assertQuerysetEqualReversible(
            Article.objects.order_by(Upper("author__name").desc(nulls_first=True), 'headline'),
            [self.a1, self.a2, self.a4, self.a3],
        ) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_basic(self):
        Author.objects.create(name='John Smith', alias='smithj')
        Author.objects.create(name='Rhonda')
        authors = Author.objects.annotate(upper_name=Upper('name'))
        self.assertQuerysetEqual(
            authors.order_by('name'), [
                'JOHN SMITH',
                'RHONDA',
            ],
            lambda a: a.upper_name
        )
        Author.objects.update(name=Upper('name'))
        self.assertQuerysetEqual(
            authors.order_by('name'), [
                ('JOHN SMITH', 'JOHN SMITH'),
                ('RHONDA', 'RHONDA'),
            ],
            lambda a: (a.upper_name, a.name)
        ) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_if_with_string_values(self):
        Alphabet.objects.create(a=1, d="Lentils")
        Alphabet.objects.create(a=2, d="Cabbage")
        Alphabet.objects.create(a=3, d="Rice")

        result = list(
            Alphabet.objects.annotate(conditional=If(Q(a=2), Upper("d"), Lower("d")))
            .order_by("id")
            .values_list("conditional", flat=True)
        )
        assert result == ["lentils", "CABBAGE", "rice"] 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_if_field_lookups_work(self):
        Alphabet.objects.create(a=1, d="Lentils")
        Alphabet.objects.create(a=2, d="Cabbage")
        Alphabet.objects.create(a=3, d="Rice")

        result = list(
            Alphabet.objects.annotate(
                conditional=If(Q(a__gte=2), Upper("d"), Value(""))
            )
            .filter(conditional__startswith="C")
            .order_by("id")
            .values_list("conditional", flat=True)
        )
        assert result == ["CABBAGE"] 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def change_name_case(self, operation, modifier=None):
        available_operations = {'lowercase': lowercase,
                                'uppercase': uppercase}

        edit = available_operations.get(operation, None)

        if edit and modifier:
            modification = edit(modifier)
            self.update(name=REPLACE('name', Value(modifier), Value(modification)))

        elif operation == 'lowercase':
            self.update(name=Lower('name'))

        elif operation == 'uppercase':
            self.update(name=Upper('name')) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_non_deterministic_QuerySet_annotate(self):
        with record():
            list(Author.objects.annotate(x=Upper("name"), y=Upper("name"))) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_valid_expression(self):
        class TestModelAdmin(ModelAdmin):
            ordering = (Upper('name'), Upper('band__name').desc())

        self.assertIsValid(TestModelAdmin, ValidationTestModel) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_specified_ordering_by_f_expression(self):
        class OrderedByFBandAdmin(admin.ModelAdmin):
            list_display = ['name', 'genres', 'nr_of_members']
            ordering = (
                F('nr_of_members').desc(nulls_last=True),
                Upper(F('name')).asc(),
                F('genres').asc(),
            )

        m = OrderedByFBandAdmin(Band, custom_site)
        request = self.factory.get('/band/')
        request.user = self.superuser
        cl = m.get_changelist_instance(request)
        self.assertEqual(cl.get_ordering_field_columns(), {3: 'desc', 2: 'asc'}) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_specified_ordering_by_f_expression_without_asc_desc(self):
        class OrderedByFBandAdmin(admin.ModelAdmin):
            list_display = ['name', 'genres', 'nr_of_members']
            ordering = (F('nr_of_members'), Upper('name'), F('genres'))

        m = OrderedByFBandAdmin(Band, custom_site)
        request = self.factory.get('/band/')
        request.user = self.superuser
        cl = m.get_changelist_instance(request)
        self.assertEqual(cl.get_ordering_field_columns(), {3: 'asc', 2: 'asc'}) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_function_as_filter(self):
        Author.objects.create(name='John Smith', alias='SMITHJ')
        Author.objects.create(name='Rhonda')
        self.assertQuerysetEqual(
            Author.objects.filter(alias=Upper(V('smithj'))),
            ['John Smith'], lambda x: x.name
        )
        self.assertQuerysetEqual(
            Author.objects.exclude(alias=Upper(V('smithj'))),
            ['Rhonda'], lambda x: x.name
        ) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_transform(self):
        with register_lookup(CharField, Upper):
            Author.objects.create(name='John Smith', alias='smithj')
            Author.objects.create(name='Rhonda')
            authors = Author.objects.filter(name__upper__exact='JOHN SMITH')
            self.assertQuerysetEqual(
                authors.order_by('name'), [
                    'John Smith',
                ],
                lambda a: a.name
            ) 

# 需要导入模块: from django.db.models import functions [as 别名]
# 或者: from django.db.models.functions import Upper [as 别名]
def test_expressions(self):
        Author.objects.create(name='John Smith', alias='smithj')
        Author.objects.create(name='Rhonda')
        substr = Substr(Upper('name'), StrIndex('name', V('h')), 5, output_field=CharField())
        authors = Author.objects.annotate(name_part=substr)
        self.assertQuerysetEqual(
            authors.order_by('name'), ['HN SM', 'HONDA'],
            lambda a: a.name_part
        )