Python form.Field类代码示例

def test_field_from_model_supports_all_types():
    from django.db.models import fields
    not_supported = []
    blacklist = {
        'AutoField',
        'Field',
        'BigAutoField',
        'BinaryField',
        'FilePathField',
        'GenericIPAddressField',
        'IPAddressField',
        'NullBooleanField',
        'SlugField',
        'DurationField',
        'UUIDField'
    }
    field_type_names = [x for x in dir(fields) if x.endswith('Field') and x not in blacklist]

    for name in field_type_names:
        field_type = getattr(fields, name)
        try:
            Field.from_model(model=Foo, model_field=field_type())
        except AssertionError:  # pragma: no cover
            not_supported.append(name)

    assert not_supported == []

def test_field_from_model_blank_handling():
    from django.db.models import CharField

    subject = Field.from_model(model=Foo, model_field=CharField(blank=False))
    assert True is subject.parse_empty_string_as_none

    subject = Field.from_model(model=Foo, model_field=CharField(blank=True))
    assert False is subject.parse_empty_string_as_none

def test_field_from_model_many_to_many():
    Foo.objects.create(foo=2)
    Foo.objects.create(foo=3)
    Foo.objects.create(foo=5)
    choices = Field.from_model(FieldFromModelManyToManyTest, 'foo_many_to_many').choices
    assert isinstance(choices, QuerySet)
    assert set(choices) == set(Foo.objects.all())

def test_comma_separated_errors_on_validation():
    assert Form(
        data=dict(foo='5, 7'),
        fields=[Field.comma_separated(Field(name='foo', is_valid=lambda parsed_data, **_: (False, 'foo %s!' % parsed_data)))]).fields[0].errors == {
            u'Invalid value "5": foo 5!',
            u'Invalid value "7": foo 7!',
    }

def test_field_from_model_foreign_key():
    Foo.objects.create(foo=2)
    Foo.objects.create(foo=3)
    Foo.objects.create(foo=5)
    choices = Field.from_model(FieldFromModelForeignKeyTest, 'foo_fk').choices
    assert isinstance(choices, QuerySet)
    assert set(choices) == set(Foo.objects.all())

def test_render_datetime_iso():
    table = Form(fields=[
        Field.datetime(
            name='foo',
            initial=datetime(2001, 2, 3, 12, 13, 14, 7777))
    ]).table()
    assert '2001-02-03 12:13:14' in table
    assert '7777' not in table

def test_radio():
    choices = [
        'a',
        'b',
        'c',
    ]
    soup = BeautifulSoup(Form(data=Data(foo='a'), fields=[Field.radio(name='foo', choices=choices)]).validate().table())
    assert len(soup.find_all('input')) == len(choices) + 1  # +1 for AVOID_EMPTY_FORM
    assert [x.attrs['value'] for x in soup.find_all('input') if 'checked' in x.attrs] == ['a']

def test_comma_separated_errors_on_parse():
    def raise_always_value_error(string_value, **_):
        raise ValueError('foo %s!' % string_value)

    def raise_always_validation_error(string_value, **_):
        raise ValidationError(['foo %s!' % string_value, 'bar %s!' % string_value])

    assert Form(
        data=Data(foo='5, 7'),
        fields=[Field.comma_separated(Field(name='foo', parse=raise_always_value_error))]).validate().fields[0].errors == {
            u'Invalid value "5": foo 5!',
            u'Invalid value "7": foo 7!'}

    assert Form(
        data=Data(foo='5, 7'),
        fields=[Field.comma_separated(Field(name='foo', parse=raise_always_validation_error))]).validate().fields[0].errors == {
            u'Invalid value "5": foo 5!',
            u'Invalid value "5": bar 5!',
            u'Invalid value "7": foo 7!',
            u'Invalid value "7": bar 7!'}

def test_boolean_initial_true():
    fields = [Field.boolean(name='foo', initial=True), Field(name='bar', required=False)]

    form = Form(data=Data(), fields=fields).validate()
    assert form.fields_by_name['foo'].value is True

    # If there are arguments, but not for key foo it means checkbox for foo has been unchecked.
    # Field foo should therefore be false.
    form = Form(data=Data(bar='baz'), fields=fields).validate()
    assert form.fields_by_name['foo'].value is False

    form = Form(data=Data(foo='on', bar='baz'), fields=fields).validate()
    assert form.fields_by_name['foo'].value is True

def test_choices_from_query_set():
    user = User.objects.create(username='foo')
    assert [x.pk for x in Form(fields=[Field.multi_choice_queryset(name='foo', model=User, choices=User.objects.all())]).validate().fields[0].choices] == [user.pk]

def test_help_text_from_model():
    assert Form(data=Data(foo='1'), fields=[Field.from_model(model=Foo, field_name='foo')], model=Foo).validate().fields[0].help_text == 'foo_help_text'

def test_multi_choice():
    soup = BeautifulSoup(Form(data=Data(foo=['0']), fields=[Field.multi_choice(name='foo', choices=['a'])]).validate().table())
    assert [x.attrs['multiple'] for x in soup.find_all('select')] == ['']

def test_password():
    assert ' type="password" ' in Form(data=Data(foo='1'), fields=[Field.password(name='foo')]).validate().table()

def test_hidden():
    soup = BeautifulSoup(Form(data=Data(foo='1'), fields=[Field.hidden(name='foo')]).validate().table())
    assert [(x.attrs['type'], x.attrs['value']) for x in soup.find_all('input')] == [('hidden', '1'), ('hidden', '-')]

def test_json_parsing():
    # NOTE: Parsing json input requires that any numbers that come in must avoid the string strip
    f = Form(data={'foo': 1}, fields=[Field.integer(name='foo', strip_input=False)])
    assert f.is_valid()
    assert f.fields_by_name['foo'].value == 1