models.py 文件源码

def changes_str(self, colon=': ', arrow=smart_text(' \u2192 '), separator='; '):
        """
        Return the changes recorded in this log entry as a string. The formatting of the string can be customized by
        setting alternate values for colon, arrow and separator. If the formatting is still not satisfying, please use
        :py:func:`LogAction.changes_dict` and format the string yourself.
        :param colon: The string to place between the field name and the values.
        :param arrow: The string to place between each old and new value.
        :param separator: The string to place between each field.
        :return: A readable string of the changes in this log entry.
        """
        substrings = []

        for field, values in iteritems(self.changes_dict):
            substring = smart_text('{field_name:s}{colon:s}{old:s}{arrow:s}{new:s}').format(
                field_name=field,
                colon=colon,
                old=values[0],
                arrow=arrow,
                new=values[1],
            )
            substrings.append(substring)

        return separator.join(substrings)