reports.py 文件源码

def _items(self, record):
        for field_name, _ in self.get_fields():
            # Does the field_name refer to an aggregation column or is
            # it an attribute of this instance?
            try:
                attr_field = getattr(self, field_name)
            except AttributeError:
                # The field is a record element
                ret = record.get(field_name)
                formatting_func = self.get_formatting().get(field_name)
                if formatting_func is not None:
                    try:
                        ret = formatting_func(ret)
                    except (TypeError, ValueError):
                        pass
            else:
                # The view class has an attribute with this field_name
                if callable(attr_field):
                    ret = attr_field(record)
                    if getattr(attr_field, 'allow_tags', False):
                        ret = mark_safe(ret)
            yield ret