Python django.forms.widgets.Input() Examples

def render_layout(self, form, context, template_pack=TEMPLATE_PACK):
        """
        Copy any field label to the ``placeholder`` attribute.
        Note, this method is called when :attr:`layout` is defined.
        """
        # Writing the label values into the field placeholders.
        # This is done at rendering time, so the Form.__init__() could update any labels before.
        # Django 1.11 no longer lets EmailInput or URLInput inherit from TextInput,
        # so checking for `Input` instead while excluding `HiddenInput`.
        for field in form.fields.values():
            if field.label and \
                    isinstance(field.widget, (Input, forms.Textarea)) and \
                    not isinstance(field.widget, forms.HiddenInput):
                field.widget.attrs['placeholder'] = u"{0}:".format(field.label)

        return super(CompactLabelsCommentFormHelper, self).render_layout(form, context, template_pack=template_pack) 

def __init__(self, *args, **kwargs):
        super(BootsrapForm, self).__init__(*args, **kwargs)
        for field in self.fields.values():
            # Only tweak the field if it will be displayed
            if not isinstance(field.widget, widgets.HiddenInput):
                attrs = {}
                if (
                    isinstance(field.widget, (widgets.Input, widgets.Select, widgets.Textarea)) and
                    not isinstance(field.widget, (widgets.CheckboxInput,))
                ):
                    attrs['class'] = "form-control"
                if isinstance(field.widget, (widgets.Input, widgets.Textarea)) and field.label:
                    attrs["placeholder"] = field.label
                if field.required:
                    attrs["required"] = "required"
                field.widget.attrs.update(attrs) 

def test_no_trailing_newline_in_attrs(self):
        self.check_html(Input(), 'name', 'value', strict=True, html='<input type="None" name="name" value="value">') 

def test_attr_false_not_rendered(self):
        html = '<input type="None" name="name" value="value">'
        self.check_html(Input(), 'name', 'value', html=html, attrs={'readonly': False}) 

def test_attrs_with_type(self):
        attrs = {'type': 'date'}
        widget = Input(attrs)
        self.check_html(widget, 'name', 'value', '<input type="date" name="name" value="value">')
        # reuse the same attrs for another widget
        self.check_html(Input(attrs), 'name', 'value', '<input type="date" name="name" value="value">')
        attrs['type'] = 'number'  # shouldn't change the widget type
        self.check_html(widget, 'name', 'value', '<input type="date" name="name" value="value">') 

def test_custom_widget_kwarg(self):
        """The widget can be overridden with a kwarg."""
        field = forms.JSONField(widget=widgets.Input)
        self.assertIsInstance(field.widget, widgets.Input) 

def test_custom_widget_attribute(self):
        """The widget can be overridden with an attribute."""
        class CustomJSONField(forms.JSONField):
            widget = widgets.Input

        field = CustomJSONField()
        self.assertIsInstance(field.widget, widgets.Input) 

def test_attr_false_not_rendered(self):
        html = '<input type="None" name="name" value="value">'
        self.check_html(Input(), 'name', 'value', html=html, attrs={'readonly': False}) 

def test_attrs_with_type(self):
        attrs = {'type': 'date'}
        widget = Input(attrs)
        self.check_html(widget, 'name', 'value', '<input type="date" name="name" value="value">')
        # reuse the same attrs for another widget
        self.check_html(Input(attrs), 'name', 'value', '<input type="date" name="name" value="value">')
        attrs['type'] = 'number'  # shouldn't change the widget type
        self.check_html(widget, 'name', 'value', '<input type="date" name="name" value="value">') 

def test_custom_widget_kwarg(self):
        """The widget can be overridden with a kwarg."""
        field = forms.JSONField(widget=widgets.Input)
        self.assertIsInstance(field.widget, widgets.Input) 

def test_custom_widget_attribute(self):
        """The widget can be overridden with an attribute."""
        class CustomJSONField(forms.JSONField):
            widget = widgets.Input

        field = CustomJSONField()
        self.assertIsInstance(field.widget, widgets.Input)