# Source code for django_tables2.columns.booleancolumn

    from django.db import models
    from django.utils.html import escape, format_html

    from ..utils import AttributeDict
    from .base import Column, library

    @library.register
    class BooleanColumn(Column):
        """
        A column suitable for rendering boolean data.

        Arguments:
            null (bool): is `None` different from `False`?
            yesno (str): comma separated values string or 2-tuple to display for
                         True/False values.

        Rendered values are wrapped in a ``<span>`` to allow customization by using
        CSS. By default the span is given the class ``true``, ``false``.

        In addition to *attrs* keys supported by `~.Column`, the following are
        available:

         - ``span`` -- adds attributes to the ``<span>`` tag
        """

        def __init__(self, null=False, yesno="✔,✘", **kwargs):
            self.yesno = yesno.split(",") if isinstance(yesno, str) else tuple(yesno)
            if not null:
                kwargs["empty_values"] = ()
            super().__init__(**kwargs)

        def _get_bool_value(self, record, value, bound_column):
            # If record is a model, we need to check if it has choices defined.
            if hasattr(record, "_meta"):
                field = bound_column.accessor.get_field(record)

                # If that's the case, we need to inverse lookup the value to convert
                # to a boolean we can use.
                if hasattr(field, "choices") and field.choices is not None and len(field.choices) > 0:
                    value = next(val for val, name in field.choices if name == value)

            value = bool(value)
            return value

        def render(self, value, record, bound_column):
            value = self._get_bool_value(record, value, bound_column)
            text = self.yesno[int(not value)]
            attrs = {"class": str(value).lower()}
            attrs.update(self.attrs.get("span", {}))

            return format_html("<span {}>{}</span>", AttributeDict(attrs).as_html(), escape(text))

        def value(self, record, value, bound_column):
            """Return the content for a specific cell similarly to `.render` however without any html content."""
            value = self._get_bool_value(record, value, bound_column)
            return str(value)

        @classmethod
        def from_field(cls, field, **kwargs):
            if isinstance(field, models.BooleanField):
                return cls(null=getattr(field, "null", False), **kwargs)