accrual: Add Prepaid Expenses to aging report.

conservancy_beancount/reports/accrual.py

@@ -140,6 +140,7 @@ class AccrualAccount(enum.Enum):
     # See AgingODS.start_spreadsheet().
     RECEIVABLE = Account('Assets:Receivable', [365, 120, 90, 60])
     PAYABLE = Account('Liabilities:Payable', [365, 90, 60, 30])
+    PREPAID = Account('Assets:Prepaid', [365, 120, 90, 60])
 
     @classmethod
     def account_names(cls) -> Iterator[str]:
@@ -175,11 +176,15 @@ class AccrualPostings(core.RelatedPostings):
         accruals: Dict[Tuple[str, ...], List[data.Posting]] = collections.defaultdict(list)
         payments: Dict[Tuple[str, ...], Deque[data.Posting]] = collections.defaultdict(Deque)
         key: Tuple[str, ...]
+        prepaid_account = AccrualAccount.PREPAID.value.name
         for post in postings:
             norm_func = core.normalize_amount_func(post.account)
+            entity = str(post.meta.get('entity', 'BlankEntity'))
+            if post.account.is_under(prepaid_account):
+                invoice = entity
+            else:
                 invoice = str(post.meta.get('invoice', 'BlankInvoice'))
             if norm_func(post.units.number) >= 0:
-                entity = str(post.meta.get('entity', 'BlankEntity'))
                 key = (post.meta.date.isoformat(), entity, invoice, post.account)
                 accruals[key].append(post)
             else:

setup.py

@@ -5,7 +5,7 @@ from setuptools import setup
 setup(
     name='conservancy_beancount',
     description="Plugin, library, and reports for reading Conservancy's books",
-    version='1.12.3',
+    version='1.12.4',
     author='Software Freedom Conservancy',
     author_email='info@sfconservancy.org',
     license='GNU AGPLv3+',

tests/test_reports_accrual.py

@@ -218,7 +218,7 @@ def check_aging_ods(ods_file, date, recv_rows=AGING_AR, pay_rows=AGING_AP):
     ods_file.seek(0)
     ods = odf.opendocument.load(ods_file)
     sheets = ods.spreadsheet.getElementsByType(odf.table.Table)
-    assert len(sheets) == 2
+    assert len(sheets) >= 2
     check_aging_sheet(sheets[0], recv_rows, date)
     check_aging_sheet(sheets[1], pay_rows, date)