DrCr/drcr/statements/views.py

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# DrCr: Web-based double-entry bookkeeping framework
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# Copyright (C) 2022–2023 Lee Yingtong Li (RunasSudo)
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#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from flask import abort, redirect, render_template, request, url_for
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from .. import AMOUNT_DPS
from ..database import db
from ..models import Amount, Posting, Transaction
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from ..webapp import app
from .models import StatementLine, StatementLineReconciliation
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from datetime import datetime
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@app.route('/statement-lines')
def statement_lines():
# JOIN all associated postings (called in is_complex/charge_account)
statement_lines = db.select(StatementLine).options(
db.joinedload(StatementLine.reconciliation).joinedload(StatementLineReconciliation.posting).joinedload(Posting.transaction).joinedload(Transaction.postings)
).order_by(StatementLine.dt)
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if 'account' in request.args:
statement_lines = statement_lines.where(StatementLine.source_account == request.args['account'])
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if request.args.get('unclassified', '0') == '1':
statement_lines = statement_lines.where(StatementLine.reconciliation == None)
page = db.paginate(statement_lines, per_page=int(request.args.get('per_page', 1000)))
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return render_template('statements/statement_lines.html', page=page)
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@app.route('/statement-lines/charge', methods=['POST'])
def statement_line_charge():
statement_line = db.session.get(StatementLine, request.form['line-id'])
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if not statement_line:
abort(404)
if statement_line.reconciliation:
raise Exception('NYI')
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# Create transaction
posting_source = Posting(account=statement_line.source_account, quantity=statement_line.quantity, commodity=statement_line.commodity)
posting_charge = Posting(account=request.form['charge-account'], quantity=-statement_line.quantity, commodity=statement_line.commodity)
transaction = Transaction(
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dt=statement_line.dt,
description=statement_line.description,
postings=[posting_source, posting_charge]
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)
db.session.add(transaction)
# Reconcile statement line
reconciliation = StatementLineReconciliation(
statement_line=statement_line,
posting=posting_source
)
db.session.add(reconciliation)
db.session.commit()
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return 'OK'
@app.route('/statement-lines/charge-complex', methods=['GET', 'POST'])
def statement_line_charge_complex():
statement_line = db.session.get(StatementLine, request.args['line-id'])
if not statement_line:
abort(404)
if statement_line.reconciliation:
raise Exception('Cannot reconcile an already reconciled statement line')
if request.method == 'GET':
# Create template transaction
posting_source = Posting(account=statement_line.source_account, quantity=statement_line.quantity, commodity=statement_line.commodity)
posting_charge = Posting(account='', quantity=-statement_line.quantity, commodity=statement_line.commodity)
transaction = Transaction(
dt=statement_line.dt,
description=statement_line.description,
postings=[posting_source, posting_charge]
)
return render_template('journal/journal_edit_transaction.html', transaction=transaction)
# New transaction
transaction = Transaction(
dt=datetime.strptime(request.form['dt'], '%Y-%m-%d'),
description=request.form['description'],
postings=[]
)
for account, sign, amount_str in zip(request.form.getlist('account'), request.form.getlist('sign'), request.form.getlist('amount')):
amount = Amount.parse(amount_str)
if sign == 'cr':
amount = -amount
posting = Posting(
account=account,
quantity=amount.quantity,
commodity=amount.commodity
)
transaction.postings.append(posting)
transaction.assert_valid()
db.session.add(transaction)
# Reconcile statement line
posting_source = next((p for p in transaction.postings if p.account == statement_line.source_account and p.quantity == statement_line.quantity and p.commodity == statement_line.commodity), None)
if not posting_source:
raise Exception('Transaction must have posting corresponding to statement line')
reconciliation = StatementLineReconciliation(
statement_line=statement_line,
posting=posting_source
)
db.session.add(reconciliation)
db.session.commit()
return redirect(url_for('statement_lines'))
@app.route('/statement-lines/reconcile-transfer', methods=['POST'])
def statement_line_reconcile_transfer():
line_ids = request.form.getlist('sel-line-id')
if len(line_ids) != 2:
raise Exception('Must select exactly 2 statement lines')
line1 = db.session.get(StatementLine, line_ids[0])
line2 = db.session.get(StatementLine, line_ids[1])
# Check same amount
if line1.quantity != -line2.quantity or line1.commodity != line2.commodity:
raise Exception('Selected statement line debits/credits must equal')
if line1.reconciliation or line2.reconciliation:
raise Exception('NYI')
# Create transaction
posting1 = Posting(account=line1.source_account, quantity=line1.quantity, commodity=line1.commodity)
posting2 = Posting(account=line2.source_account, quantity=line2.quantity, commodity=line2.commodity)
transaction = Transaction(
dt=line1.dt,
description=line1.description,
postings=[posting1, posting2]
)
db.session.add(transaction)
# Reconcile statement lines
db.session.add(StatementLineReconciliation(
statement_line=line1,
posting=posting1
))
db.session.add(StatementLineReconciliation(
statement_line=line2,
posting=posting2
))
db.session.commit()
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return redirect(url_for('statement_lines'))
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@app.route('/statement-lines/import', methods=['GET', 'POST'])
def statement_lines_import():
if request.method == 'GET':
return render_template('statements/import.html')
# Import using importer
if request.form['format'] == 'ofx1':
from .importers.ofx1 import import_ofx1
statement_lines = import_ofx1(request.files['file'])
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elif request.form['format'] == 'ofx2':
from .importers.ofx2 import import_ofx2
statement_lines = import_ofx2(request.files['file'])
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else:
abort(400)
# Fill in source_account
for statement_line in statement_lines:
statement_line.source_account = request.form['source-account']
if request.form['action'] == 'preview':
return render_template('statements/import_preview.html', statement_lines=statement_lines)
# Add to database
for statement_line in statement_lines:
db.session.add(statement_line)
db.session.commit()
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return redirect(url_for('statement_lines'))