def unknown_column_message(table, column, haystack=None):
if haystack is None:
haystack = map(lambda c: c.name, table.columns())
logger.debug('haystack: %s', haystack)
matches = get_close_matches(column, haystack)
if not matches:
return COLUMN_NOT_FOUND.format(
column,
table.name if table else '?',
NO_CLOSE_MATCHES.format(u', '.join(haystack)))
return COLUMN_NOT_FOUND.format(
column,
table.name if table else '?',
CLOSE_MATCHES.format(u', '.join(matches)))
