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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@ -17,11 +17,15 @@
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"""The forms for the unmatched offset management.
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"""
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from decimal import Decimal
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import sqlalchemy as sa
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from sqlalchemy.orm import selectinload
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from accounting import db
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from accounting.models import Account, JournalEntry, JournalEntryLineItem
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from accounting.utils.unapplied import get_unapplied_original_line_items
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from accounting.utils.cast import be
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from accounting.utils.offset_alias import offset_alias
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class OffsetPair:
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@ -67,8 +71,7 @@ class OffsetMatcher:
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:return: None.
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"""
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self.unapplied: list[JournalEntryLineItem] \
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= get_unapplied_original_line_items(self.account)
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self.unapplied: list[JournalEntryLineItem] = self.__get_unapplied()
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self.total = len(self.unapplied)
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if self.total == 0:
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self.is_having_matches = False
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@ -95,6 +98,47 @@ class OffsetMatcher:
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remains.remove(offset_candidates[0])
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self.is_having_matches = len(self.matched_pairs) > 0
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def __get_unapplied(self) -> list[JournalEntryLineItem]:
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"""Returns the unapplied original line items of the account.
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:return: The unapplied original line items of the account.
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"""
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offset: sa.Alias = offset_alias()
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net_balance: sa.Label \
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= (JournalEntryLineItem.amount
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+ sa.func.sum(sa.case(
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(be(offset.c.is_debit == JournalEntryLineItem.is_debit),
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offset.c.amount),
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else_=-offset.c.amount))).label("net_balance")
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select_net_balances: sa.Select \
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= sa.select(JournalEntryLineItem.id, net_balance) \
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.join(Account) \
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.join(offset, be(JournalEntryLineItem.id
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== offset.c.original_line_item_id),
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isouter=True) \
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.filter(be(Account.id == self.account.id),
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sa.or_(sa.and_(Account.base_code.startswith("2"),
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sa.not_(JournalEntryLineItem.is_debit)),
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sa.and_(Account.base_code.startswith("1"),
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JournalEntryLineItem.is_debit))) \
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.group_by(JournalEntryLineItem.id) \
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.having(sa.or_(sa.func.count(offset.c.id) == 0, net_balance != 0))
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net_balances: dict[int, Decimal] \
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= {x.id: x.net_balance
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for x in db.session.execute(select_net_balances).all()}
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line_items: list[JournalEntryLineItem] = JournalEntryLineItem.query \
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.filter(JournalEntryLineItem.id.in_({x for x in net_balances})) \
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.join(JournalEntry) \
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.order_by(JournalEntry.date, JournalEntry.no,
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JournalEntryLineItem.is_debit, JournalEntryLineItem.no) \
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.options(selectinload(JournalEntryLineItem.currency),
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selectinload(JournalEntryLineItem.journal_entry)).all()
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for line_item in line_items:
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line_item.net_balance = line_item.amount \
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if net_balances[line_item.id] is None \
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else net_balances[line_item.id]
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return line_items
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def __get_unmatched_offsets(self) -> list[JournalEntryLineItem]:
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"""Returns the unmatched offsets of an account.
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@ -1,72 +0,0 @@
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# The Mia! Accounting Project.
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# Author: imacat@mail.imacat.idv.tw (imacat), 2023/4/8
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# Copyright (c) 2023 imacat.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""The unapplied original line item utilities.
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"""
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from decimal import Decimal
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import sqlalchemy as sa
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from sqlalchemy.orm import selectinload
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from accounting import db
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from accounting.models import Account, JournalEntry, JournalEntryLineItem
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from accounting.utils.cast import be
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from accounting.utils.offset_alias import offset_alias
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def get_unapplied_original_line_items(account: Account) \
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-> list[JournalEntryLineItem]:
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"""Queries and returns the unapplied original line items in an account.
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:param account: The account.
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:return: The unapplied original line items in the account.
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"""
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offset: sa.Alias = offset_alias()
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net_balance: sa.Label \
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= (JournalEntryLineItem.amount
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+ sa.func.sum(sa.case(
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(be(offset.c.is_debit == JournalEntryLineItem.is_debit),
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offset.c.amount),
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else_=-offset.c.amount))).label("net_balance")
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select_net_balances: sa.Select \
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= sa.select(JournalEntryLineItem.id, net_balance) \
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.join(Account) \
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.join(offset, be(JournalEntryLineItem.id
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== offset.c.original_line_item_id),
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isouter=True) \
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.filter(be(Account.id == account.id),
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sa.or_(sa.and_(Account.base_code.startswith("2"),
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sa.not_(JournalEntryLineItem.is_debit)),
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sa.and_(Account.base_code.startswith("1"),
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JournalEntryLineItem.is_debit))) \
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.group_by(JournalEntryLineItem.id) \
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.having(sa.or_(sa.func.count(offset.c.id) == 0, net_balance != 0))
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net_balances: dict[int, Decimal] \
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= {x.id: x.net_balance
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for x in db.session.execute(select_net_balances).all()}
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line_items: list[JournalEntryLineItem] = JournalEntryLineItem.query \
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.filter(JournalEntryLineItem.id.in_({x for x in net_balances})) \
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.join(JournalEntry) \
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.order_by(JournalEntry.date, JournalEntry.no,
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JournalEntryLineItem.is_debit, JournalEntryLineItem.no) \
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.options(selectinload(JournalEntryLineItem.currency),
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selectinload(JournalEntryLineItem.journal_entry)).all()
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for line_item in line_items:
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line_item.net_balance = line_item.amount \
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if net_balances[line_item.id] is None \
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else net_balances[line_item.id]
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return line_items
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