def create_loan(params, should_force_checkout):
"""Create a loan on behalf of a user."""
if "patron_pid" not in params:
raise MissingRequiredParameterError(
description="'patron_pid' is required when creating a loan")
if "item_pid" not in params:
raise MissingRequiredParameterError(
description="'item_pid' is required when creating a loan")
if patron_has_active_loan_on_item(patron_pid=params["patron_pid"],
item_pid=params["item_pid"]):
raise PatronHasLoanOnItemError(params["patron_pid"],
params["item_pid"])
if "document_pid" not in params:
document_pid = Item.get_document_pid(params["item_pid"])
if document_pid:
params["document_pid"] = document_pid
if should_force_checkout:
_ensure_item_can_circulate(params['item_pid'])
# create a new loan
record_uuid = uuid.uuid4()
new_loan = {"item_pid": params["item_pid"]}
pid = loan_pid_minter(record_uuid, data=new_loan)
loan = Loan.create(data=new_loan, id_=record_uuid)
# trigger the first transition
loan = current_circulation.circulation.trigger(
loan, **dict(params, trigger="checkout"))
return pid, loan
def request_loan(params):
"""Create a loan and trigger the first transition to create a request."""
if "patron_pid" not in params:
raise MissingRequiredParameterError(
description="'patron_pid' is required on loan request")
if "document_pid" not in params:
raise MissingRequiredParameterError(
description="'document_pid' is required on loan request")
if patron_has_active_loan_on_item(patron_pid=params["patron_pid"],
document_pid=params["document_pid"]):
raise PatronHasLoanOnDocumentError(params["patron_pid"],
params["document_pid"])
# create a new loan
record_uuid = uuid.uuid4()
new_loan = {
"document_pid": params["document_pid"],
"patron_pid": params["patron_pid"],
}
pid = loan_pid_minter(record_uuid, data=new_loan)
loan = Loan.create(data=new_loan, id_=record_uuid)
# trigger the first transition
loan = current_circulation.circulation.trigger(
loan, **dict(params, trigger="request"))
return pid, loan
def search_by_internal_location_pid(
self,
internal_location_pid=None,
filter_states=None,
exclude_states=None
):
"""Retrieve items based on the given internal location pid."""
search = self
if internal_location_pid:
search = search.filter(
"term",
internal_location_pid=internal_location_pid
)
else:
raise MissingRequiredParameterError(
description="internal_location_pid is required"
)
if filter_states:
search = search.filter("terms", status=filter_states)
elif exclude_states:
search = search.exclude("terms", status=exclude_states)
return search
def _validate_delivery(delivery):
"""Validate `delivery` param."""
methods = list(
current_app.config.get("ILS_CIRCULATION_DELIVERY_METHODS", {}).keys())
if methods:
if not delivery or delivery["method"] not in methods:
raise MissingRequiredParameterError(
description="A valid 'delivery' is required on loan request")
def search_by_provider_pid(self, provider_pid=None):
"""Search by provider pid."""
search = self
if provider_pid:
search = search.filter("term", provider_pid=provider_pid)
else:
raise MissingRequiredParameterError(
description="provider_pid is required")
return search
def get_ongoing_orders_by_patron_pid(self, patron_pid=None):
"""Get pending and ordered orders by patron pid."""
active_states = ["PENDING", "ORDERED"]
if patron_pid:
search = self.search_by_patron_pid(patron_pid).filter(
"terms", status=active_states)
else:
raise MissingRequiredParameterError(
description="patron_pid is required")
return search
def search_by_patron_pid(self, patron_pid=None):
"""Search by patron pid."""
search = self
if patron_pid:
search = search.filter("term", order_lines__patron_pid=patron_pid)
else:
raise MissingRequiredParameterError(
description="patron_pid is required")
return search
def search_by_document_pid(self, document_pid=None):
"""Search by document pid."""
search = self
if document_pid:
search = search.filter("term", document_pid=document_pid)
else:
raise MissingRequiredParameterError(
description="document_pid is required")
return search
def search_by_library_pid(self, library_pid=None):
"""Retrieve BorrowingRequests with the given library_pid."""
search = self
if library_pid:
search = search.filter("term", library_pid=library_pid)
else:
raise MissingRequiredParameterError(
description="library_pid is required")
return search
def search_by_vendor_pid(self, vendor_pid=None):
"""Search by vendor pid."""
search = self
if vendor_pid:
search = search.filter("term", vendor_pid=vendor_pid)
else:
raise MissingRequiredParameterError(
description="vendor_pid is required"
)
return search
def search_by_document_request_pid(self, document_request_pid=None):
"""Retrieve document requests with the given document_request_pid."""
search = self
if document_request_pid:
search = search.filter("term", request__pid=document_request_pid)
else:
raise MissingRequiredParameterError(
description="document_request_pid is required"
)
return search
def search_by_series_pid(self, series_pid=None):
"""Retrieve documents with the given series_pid."""
search = self
if series_pid:
search = search.filter("term", series__pid=series_pid)
else:
raise MissingRequiredParameterError(
description="series_pid is required"
)
return search
def filter_by_tag_pid(cls, search, tag_pid, filter_states=None,
exclude_states=None):
"""Filter a search by tag PID."""
if tag_pid:
search = search.filter("term", tag_pids=tag_pid)
else:
raise MissingRequiredParameterError(
description="tag_pid is required"
)
if filter_states:
search = search.filter("terms", state=filter_states)
elif exclude_states:
search = search.exclude("terms", state=exclude_states)
return search
def search_by_document_pid(self, document_pid=None, filter_states=None,
exclude_states=None):
"""Retrieve items based on the given document pid."""
search = self
if document_pid:
search = search.filter("term", document_pid=document_pid)
else:
raise MissingRequiredParameterError(
description="document_pid is required"
)
if filter_states:
search = search.filter("terms", status=filter_states)
elif exclude_states:
search = search.exclude("terms", status=exclude_states)
return search
def send_email_after_loan_change(_, prev_loan, loan, trigger):
"""Send email notification when the loan changes."""
_datastore = current_app.extensions["security"].datastore
patron_pid = loan["patron_pid"]
patron = _datastore.get_user(patron_pid)
if not patron:
raise PatronNotFoundError(patron_pid)
if not patron.email:
msg = "Patron with PID {} has no email address".format(patron_pid)
raise MissingRequiredParameterError(description=msg)
send_ils_mail(loan_message_factory(),
prev_loan,
loan,
trigger,
recipients=[patron.email])
def search_by_bucket_id(self, bucket_id=None):
"""Search EItems by bucket id."""
search = self
if bucket_id:
search = search.filter("term", bucket_id=bucket_id)
else:
raise MissingRequiredParameterError(
description="bucket_id is required")
results = search.execute()
if len(results) != 1:
# There should always be one bucket associated with an eitem when
# downloading a file.
msg = "found 0 or multiple records with bucket {0}".format(
bucket_id)
current_app.logger.warning(msg)
return results
