base.py 文件源码

def get_link_url(self, datum):
        """Returns the final value for the column's ``link`` property.

        If ``allowed_data_types`` of this column  is not empty and the datum
        has an assigned type, check if the datum's type is in the
        ``allowed_data_types`` list. If not, the datum won't be displayed
        as a link.

        If ``link`` is a callable, it will be passed the current data object
        and should return a URL. Otherwise ``get_link_url`` will attempt to
        call ``reverse`` on ``link`` with the object's id as a parameter.
        Failing that, it will simply return the value of ``link``.
        """
        if self.allowed_data_types:
            data_type_name = self.table._meta.data_type_name
            data_type = getattr(datum, data_type_name, None)
            if data_type and (data_type not in self.allowed_data_types):
                return None
        obj_id = self.table.get_object_id(datum)
        if callable(self.link):
            return self.link(datum)
        try:
            return urlresolvers.reverse(self.link, args=(obj_id,))
        except urlresolvers.NoReverseMatch:
            return self.link