filters.py 文件源码

def __init__(self, field, request, params, model, admin_view, field_path):
        self.field = field
        self.field_path = field_path
        self.title = getattr(field, 'verbose_name', field_path)
        self.context_params = {}

        super(FieldFilter, self).__init__(request, params, model, admin_view)

        for name, format in self.lookup_formats.items():
            p = format % field_path
            self.context_params["%s_name" % name] = FILTER_PREFIX + p
            if p in params:
                value = prepare_lookup_value(p, params.pop(p))
                self.used_params[p] = value
                self.context_params["%s_val" % name] = value
            else:
                self.context_params["%s_val" % name] = ''

        arr = map(
                lambda kv: setattr(self, 'lookup_' + kv[0], kv[1]),
                self.context_params.items()
                )
        if six.PY3:
            list(arr)