NullBooleanSelect

A Select Widget intended to be used with NullBooleanField.

Constructor

def NullBooleanSelect(
    attrs: dict = None
) - > null

Name	Type	Description
attrs	`dict` = None	Optional dictionary of HTML attributes to be set on the rendered widget.

def NullBooleanSelect(
    attrs: dict = None
) - > null

Name	Type	Description
attrs	`dict` = None	A dictionary containing HTML attributes to be rendered on the select element.

@classmethod
def format_value(
    value: any
) - > string

Converts the internal Python value into a string representation suitable for the HTML option tags.

Name	Type	Description
value	`any`	The Python boolean, string, or legacy integer-string value to be mapped to a widget choice.

Type	Description
`string`	A string value of 'true', 'false', or 'unknown' used to set the selected state in the HTML template.

@classmethod
def value_from_datadict(
    data: dict,
    files: dict,
    name: string
) - > boolean | null

Extracts and normalizes the value from the submitted form data into a Pythonic boolean or None.

Name	Type	Description
data	`dict`	The dictionary of submitted form data, typically request.POST or request.GET.
files	`dict`	The dictionary of uploaded file data.
name	`string`	The name of the form field used as the key to look up the value in the data dictionary.

Type	Description
`boolean	null`