AntDesign Table x Django-Filters -- Ascend/Descend parameters support

antd_ordering_filter.py

class AntCompatibleOrderingFilter(filters.OrderingFilter):
    def __init__(self, *args, **kwargs):
        super(AntCompatibleOrderingFilter, self).__init__(*args, **kwargs)

    def build_choices(self, fields, labels):
        """
        Adds support for {field}-ascend and {field}-descend choices
        """
        ascending = [
            (f"{param}-ascend", labels.get(field, _(pretty_name(param))))
            for field, param in fields.items()
        ]
        descending = [
            (f"{param}-descend", labels.get(f"{param}-descend", self.descending_fmt % param))
            for field, param in fields.items()
        ]

        # interleave the ascending and descending choices
        return [val for pair in zip(ascending, descending) for val in pair]

    def get_ordering_value(self, param):
        """
        Converts {field}-ascend and {field}-descend URL params
        to Django ORM compatible sorters
        """
        descending = param.endswith('-descend')
        param_split = param.split('-')

        if len(param_split) != 2:
            return param
        else:
            field_name = self.param_map.get(param_split[0], param)
            return "-%s" % field_name if descending else field_name