def delete_dataset(self, dataset_ref, retry=None, delete_contents=False):
# type: (DatasetReference, Optional[Retry], bool) -> None
"""Deletes a dataset.
Args:
dataset_ref: The dataset reference to delete.
retry: If provided, what retry strategy to use (unused in this implementation).
delete_contents: If true, delete the contents of the dataset first. If false and the
dataset is nonempty, raise an error.
"""
del retry # Unused in this implementation.
if self._safe_lookup(dataset_ref.project,
dataset_ref.dataset_id) and not delete_contents:
raise BadRequest(
"Can't delete dataset {}; dataset is not empty".format(
dataset_ref))
del self._datasets[dataset_ref.project][dataset_ref.dataset_id]
def check_definitions(self, measure_defs, start_date, end_date, verbose):
"""Checks SQL definitions for measures.
"""
# We don't validate JSON here, as this is already done as a
# side-effect of parsing the command options.
errors = []
for measure_def in measure_defs:
measure_id = measure_def["id"]
try:
measure = create_or_update_measure(measure_def, end_date)
calculation = MeasureCalculation(
measure, start_date=start_date, end_date=end_date, verbose=verbose
)
calculation.check_definition()
except BadRequest as e:
errors.append("* SQL error in `{}`: {}".format(measure_id, e.args[0]))
except TypeError as e:
errors.append("* JSON error in `{}`: {}".format(measure_id, e.args[0]))
if errors:
raise BadRequest("\n".join(errors))
def bad_request_occurred(self):
raise BadRequest('Syntax error')