def item_exists(item_pid):
"""Return True if the Item exists given a PID."""
try:
resolve_item_from_loan(item_pid)
except PersistentIdentifierError:
return False
return True
def item_resolver(loan_pid):
"""Resolve an Item given a Loan PID."""
Loan = current_circulation.loan_record_cls
loan = Loan.get_record_by_pid(loan_pid)
if not loan.get("item_pid"):
return {}
try:
# can resolve to an Item or BorrowingRequest
item = resolve_item_from_loan(loan["item_pid"])
except PIDDeletedError:
item = {}
else:
# if it the item is a BorrowingRequest, then some of these
# fields might not be there
item = pick(
item,
"barcode",
"description",
"document_pid",
"medium",
"pid",
)
return item
def index_referenced_records(loan):
"""Index referenced records."""
indexer = ReferencedRecordsIndexer()
indexed = dict(pid_type=CIRCULATION_LOAN_PID_TYPE, record=loan)
referenced = []
# fetch and index the document
document_cls = current_app_ils.document_record_cls
document = document_cls.get_record_by_pid(loan["document_pid"])
referenced.append(dict(pid_type=DOCUMENT_PID_TYPE, record=document))
# fetch and index the item
if loan.get("item_pid"):
item = resolve_item_from_loan(loan["item_pid"])
referenced.append(dict(pid_type=loan["item_pid"]["type"], record=item))
# index the loan itself: this is needed because of the extra field
# `available_items_for_loan_count` added when indexing.
# To calculate the value of this field, a search on the `loans`
# indexed is performed and this loan has to be already indexed
# with its latest data.
# At the first indexing, `available_items_for_loan_count` value might
# be wrong and corrected at the second re-indexing.
loan_class = current_circulation.loan_record_cls
loan_record = loan_class.get_record_by_pid(loan["pid"])
referenced.append(
dict(pid_type=CIRCULATION_LOAN_PID_TYPE, record=loan_record))
# index the loan and referenced records
indexer.index(indexed, referenced)
def index_after_loan_replace_item(_, old_item_pid, new_item_pid):
"""Register Circulation signal to index item."""
if old_item_pid:
rec = resolve_item_from_loan(old_item_pid)
indexer = None
if old_item_pid["type"] == ITEM_PID_TYPE:
indexer = current_app_ils.item_indexer
elif old_item_pid["type"] == BORROWING_REQUEST_PID_TYPE:
indexer = current_ils_ill.borrowing_request_indexer_cls()
indexer.index(rec)
if new_item_pid:
rec = resolve_item_from_loan(new_item_pid)
indexer = None
if new_item_pid["type"] == ITEM_PID_TYPE:
indexer = current_app_ils.item_indexer
elif new_item_pid["type"] == BORROWING_REQUEST_PID_TYPE:
indexer = current_ils_ill.borrowing_request_indexer_cls()
indexer.index(rec)
def index_after_loan_replace_item(_, old_item_pid, new_item_pid):
"""Register Circulation signal to index item."""
loan_index = current_circulation.loan_search_cls.Meta.index
# When indexing items, the `circulation` field will perform a search on
# loans index. Wait for the loan index to be refreshed.
wait_es_refresh(loan_index)
if old_item_pid:
rec = resolve_item_from_loan(old_item_pid)
indexer = None
if old_item_pid["type"] == ITEM_PID_TYPE:
indexer = current_app_ils.item_indexer
elif old_item_pid["type"] == BORROWING_REQUEST_PID_TYPE:
indexer = current_ils_ill.borrowing_request_indexer_cls()
indexer.index(rec)
if new_item_pid:
rec = resolve_item_from_loan(new_item_pid)
indexer = None
if new_item_pid["type"] == ITEM_PID_TYPE:
indexer = current_app_ils.item_indexer
elif new_item_pid["type"] == BORROWING_REQUEST_PID_TYPE:
indexer = current_ils_ill.borrowing_request_indexer_cls()
indexer.index(rec)
def index_referenced_records(loan):
"""Index referenced records."""
indexer = ReferencedRecordsIndexer()
indexed = dict(pid_type=CIRCULATION_LOAN_PID_TYPE, record=loan)
referenced = []
# fetch and index the document
document_cls = current_app_ils.document_record_cls
document = document_cls.get_record_by_pid(loan["document_pid"])
referenced.append(dict(pid_type=DOCUMENT_PID_TYPE, record=document))
# fetch and index the item
if loan.get("item_pid"):
item = resolve_item_from_loan(loan["item_pid"])
referenced.append(dict(pid_type=loan["item_pid"]["type"], record=item))
# index the document
indexer.index(indexed, referenced)
def get_document_pid_by_item_pid(item_pid):
"""Retrieve the Document PID of the given Item PID."""
rec = resolve_item_from_loan(item_pid)
return rec.get("document_pid")