def _validate_operator(self, rows: np.recarray) -> None:
# check if query return more then one row
if len(rows) > 1:
raise AlertQueryMultipleRowsError(
message=_(
"Alert query returned more then one row. %s rows returned"
% len(rows),
)
)
# check if query returned more then one column
if len(rows[0]) > 2:
raise AlertQueryMultipleColumnsError(
_(
"Alert query returned more then one column. %s columns returned"
% len(rows[0])
)
)
if rows[0][1] is None:
return
try:
# Check if it's float or if we can convert it
self._result = float(rows[0][1])
return
except (AssertionError, TypeError, ValueError):
raise AlertQueryInvalidTypeError()
def _validate_result(rows: np.recarray) -> None:
# check if query return more then one row
if len(rows) > 1:
raise AlertQueryMultipleRowsError(message=_(
"Alert query returned more then one row. %s rows returned" %
len(rows), ))
# check if query returned more then one column
if len(rows[0]) > 2:
raise AlertQueryMultipleColumnsError(
# len is subtracted by 1 to discard pandas index column
_("Alert query returned more then one column. %s columns returned"
% (len(rows[0]) - 1)))