def update_dates_loan(
record,
start_date=None,
end_date=None,
request_start_date=None,
request_expire_date=None,
):
"""Updates the dates of a loan."""
state = record["state"]
is_active_or_completed = (
state in CIRCULATION_STATES_LOAN_ACTIVE
or state in CIRCULATION_STATES_LOAN_COMPLETED
)
data = copy(record)
if is_active_or_completed:
today = date.today().strftime("%Y-%m-%d")
if request_start_date or request_expire_date:
raise IlsException(
description="Cannot modify request dates of "
"an active or completed loan."
)
if start_date:
if start_date > today:
raise InvalidParameterError(
description="Start date cannot be in "
"the future for active loans."
)
data["start_date"] = start_date
if end_date:
data["end_date"] = end_date
if data["end_date"] < data["start_date"]:
raise InvalidParameterError(description="Negative date range.")
else: # Pending or cancelled
if start_date or end_date:
raise IlsException(
description="Cannot modify dates of "
"a pending or cancelled loan."
)
if request_start_date:
data["request_start_date"] = request_start_date
if request_expire_date:
data["request_expire_date"] = request_expire_date
if data["request_expire_date"] < data["request_start_date"]:
raise InvalidParameterError(description="Negative date range.")
record.update(data)
record.commit()
db.session.commit()
current_circulation.loan_indexer().index(record)
return record
def _validate_bucket_size(self):
"""Validate bucket size parameter."""
size_param = request.args.get("size", self.default_bucket_size)
try:
value = int(size_param)
except ValueError:
msg = "Parameter `size` is not a number: {}".format(size_param)
raise InvalidParameterError(description=msg)
if value > self.max_result_window:
msg = "Parameter `size` should be lower than {}".format(
self.max_result_window)
raise InvalidParameterError(description=msg)
return value
def validate_date(param, date):
"""Validate a date."""
try:
return datetime.strptime(date, "%Y-%m-%d")
except ValueError:
msg = "Parameter '{}' is invalid: {}".format(param, date)
raise InvalidParameterError(description=msg)
def _validate_start_date_range(self):
"""Validate start date range parameters."""
def validate_date(param, date):
"""Validate a date."""
try:
return datetime.strptime(date, "%Y-%m-%d")
except ValueError:
msg = "Parameter '{}' is invalid: {}".format(param, date)
raise InvalidParameterError(description=msg)
from_date = request.args.get("from_date", None)
from_date_obj = None
to_date = request.args.get("to_date", None)
to_date_obj = None
if from_date:
from_date_obj = validate_date("from_date", from_date)
if to_date:
to_date_obj = validate_date("to_date", to_date)
if from_date_obj and to_date_obj and to_date_obj < from_date_obj:
msg = "Parameter 'to_date' cannot be before 'from_date'."
raise InvalidParameterError(description=msg)
return from_date, to_date