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Merged the "accounting.utils.unapplied" module into the "accounting.utils.offset_matcher" module as the "__get_unapplied" method of the OffsetMatcher class. It is only used in the offset matcher.

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This commit is contained in:
依瑪貓 2023-04-16 22:46:05 +08:00
parent 260e3cbe82
commit 84ad065782
2 changed files with 47 additions and 75 deletions
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50
src/accounting/utils/offset_matcher.py
View File

@ -17,11 +17,15 @@
"""The forms for the unmatched offset management.
"""
from decimal import Decimal
import sqlalchemy as sa
from sqlalchemy.orm import selectinload
from accounting import db
from accounting.models import Account, JournalEntry, JournalEntryLineItem
from accounting.utils.unapplied import get_unapplied_original_line_items
from accounting.utils.cast import be
from accounting.utils.offset_alias import offset_alias
class OffsetPair:
@ -67,8 +71,7 @@ class OffsetMatcher:
:return: None.
"""
self.unapplied: list[JournalEntryLineItem] \
= get_unapplied_original_line_items(self.account)
self.unapplied: list[JournalEntryLineItem] = self.__get_unapplied()
self.total = len(self.unapplied)
if self.total == 0:
self.is_having_matches = False
@ -95,6 +98,47 @@ class OffsetMatcher:
remains.remove(offset_candidates[0])
self.is_having_matches = len(self.matched_pairs) > 0
def __get_unapplied(self) -> list[JournalEntryLineItem]:
"""Returns the unapplied original line items of the account.
:return: The unapplied original line items of the account.
"""
offset: sa.Alias = offset_alias()
net_balance: sa.Label \
= (JournalEntryLineItem.amount
+ sa.func.sum(sa.case(
(be(offset.c.is_debit == JournalEntryLineItem.is_debit),
offset.c.amount),
else_=-offset.c.amount))).label("net_balance")
select_net_balances: sa.Select \
= sa.select(JournalEntryLineItem.id, net_balance) \
.join(Account) \
.join(offset, be(JournalEntryLineItem.id
== offset.c.original_line_item_id),
isouter=True) \
.filter(be(Account.id == self.account.id),
sa.or_(sa.and_(Account.base_code.startswith("2"),
sa.not_(JournalEntryLineItem.is_debit)),
sa.and_(Account.base_code.startswith("1"),
JournalEntryLineItem.is_debit))) \
.group_by(JournalEntryLineItem.id) \
.having(sa.or_(sa.func.count(offset.c.id) == 0, net_balance != 0))
net_balances: dict[int, Decimal] \
= {x.id: x.net_balance
for x in db.session.execute(select_net_balances).all()}
line_items: list[JournalEntryLineItem] = JournalEntryLineItem.query \
.filter(JournalEntryLineItem.id.in_({x for x in net_balances})) \
.join(JournalEntry) \
.order_by(JournalEntry.date, JournalEntry.no,
JournalEntryLineItem.is_debit, JournalEntryLineItem.no) \
.options(selectinload(JournalEntryLineItem.currency),
selectinload(JournalEntryLineItem.journal_entry)).all()
for line_item in line_items:
line_item.net_balance = line_item.amount \
if net_balances[line_item.id] is None \
else net_balances[line_item.id]
return line_items
def __get_unmatched_offsets(self) -> list[JournalEntryLineItem]:
"""Returns the unmatched offsets of an account.

72
src/accounting/utils/unapplied.py
View File

@ -1,72 +0,0 @@
# The Mia! Accounting Project.
# Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/8
# Copyright (c) 2023 imacat.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""The unapplied original line item utilities.
"""
from decimal import Decimal
import sqlalchemy as sa
from sqlalchemy.orm import selectinload
from accounting import db
from accounting.models import Account, JournalEntry, JournalEntryLineItem
from accounting.utils.cast import be
from accounting.utils.offset_alias import offset_alias
def get_unapplied_original_line_items(account: Account) \
-> list[JournalEntryLineItem]:
"""Queries and returns the unapplied original line items in an account.
:param account: The account.
:return: The unapplied original line items in the account.
"""
offset: sa.Alias = offset_alias()
net_balance: sa.Label \
= (JournalEntryLineItem.amount
+ sa.func.sum(sa.case(
(be(offset.c.is_debit == JournalEntryLineItem.is_debit),
offset.c.amount),
else_=-offset.c.amount))).label("net_balance")
select_net_balances: sa.Select \
= sa.select(JournalEntryLineItem.id, net_balance) \
.join(Account) \
.join(offset, be(JournalEntryLineItem.id
== offset.c.original_line_item_id),
isouter=True) \
.filter(be(Account.id == account.id),
sa.or_(sa.and_(Account.base_code.startswith("2"),
sa.not_(JournalEntryLineItem.is_debit)),
sa.and_(Account.base_code.startswith("1"),
JournalEntryLineItem.is_debit))) \
.group_by(JournalEntryLineItem.id) \
.having(sa.or_(sa.func.count(offset.c.id) == 0, net_balance != 0))
net_balances: dict[int, Decimal] \
= {x.id: x.net_balance
for x in db.session.execute(select_net_balances).all()}
line_items: list[JournalEntryLineItem] = JournalEntryLineItem.query \
.filter(JournalEntryLineItem.id.in_({x for x in net_balances})) \
.join(JournalEntry) \
.order_by(JournalEntry.date, JournalEntry.no,
JournalEntryLineItem.is_debit, JournalEntryLineItem.no) \
.options(selectinload(JournalEntryLineItem.currency),
selectinload(JournalEntryLineItem.journal_entry)).all()
for line_item in line_items:
line_item.net_balance = line_item.amount \
if net_balances[line_item.id] is None \
else net_balances[line_item.id]
return line_items