Check every filter and return them in canonical form: parliament keys and
parties trimmed and lower-cased, dates trimmed. Throws OpenKaValidationError
for a filter that cannot match — an unknown parliament, a blank party, an
unknown review status, a year or period out of range or not an integer, a date
that is not YYYY-MM-DD on the calendar. search(), searchLike() and
reviewQueue() call it first; the result is idempotent.
Check every filter and return them in canonical form: parliament keys and parties trimmed and lower-cased, dates trimmed. Throws
OpenKaValidationErrorfor a filter that cannot match — an unknown parliament, a blank party, an unknown review status, a year or period out of range or not an integer, a date that is notYYYY-MM-DDon the calendar.search(),searchLike()andreviewQueue()call it first; the result is idempotent.