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fix: correct post-tax unit price calculation in buy inbound service

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Co-authored-by: aider (openai/DeepSeek-V3.2-Thinking) <aider@aider.chat>
This commit is contained in:
dxc
2026-02-27 16:28:22 +08:00
parent 3a056335bb
commit a1df62238e
1 changed files with 25 additions and 8 deletions
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33
inventory-backend/app/services/inbound/buy_service.py
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@ -117,7 +117,13 @@ class BuyInboundService:
in_qty = float(data.get('in_quantity') or 0)
u_price = float(data.get('unit_price') or 0)
tax_rate = float(data.get('tax_rate') or 0) # [新增]
tax_rate = float(data.get('tax_rate') or 0)
# 计算税后单价
post_tax_price = float(data.get('post_tax_unit_price') or 0)
if post_tax_price == 0 and u_price > 0:
tax_multiplier = 1 + (tax_rate / 100)
post_tax_price = u_price * tax_multiplier
try:
seq_sql = text("SELECT nextval('global_print_seq')")
@ -138,8 +144,8 @@ class BuyInboundService:
# 价格信息
pre_tax_unit_price=u_price,
post_tax_unit_price=float(data.get('post_tax_unit_price') or 0),
tax_rate=tax_rate, # [新增]
post_tax_unit_price=post_tax_price,
tax_rate=tax_rate,
total_price=in_qty * u_price,
currency=data.get('currency', 'CNY'),
exchange_rate=data.get('exchange_rate', 1.0),
@ -183,10 +189,22 @@ class BuyInboundService:
if 'arrival_photo' in data: stock.arrival_photo = json.dumps(data['arrival_photo'])
if 'inspection_report' in data: stock.inspection_report = json.dumps(data['inspection_report'])
# [新增] 更新税率
if 'tax_rate' in data: stock.tax_rate = float(data['tax_rate'])
# 更新税率
if 'tax_rate' in data:
stock.tax_rate = float(data['tax_rate'])
# 更新税前单价
if 'unit_price' in data:
stock.pre_tax_unit_price = float(data['unit_price'])
# 更新税后单价
if 'post_tax_unit_price' in data: stock.post_tax_unit_price = float(data['post_tax_unit_price'])
if 'post_tax_unit_price' in data:
stock.post_tax_unit_price = float(data['post_tax_unit_price'])
else:
# 如果税后单价没有提供，根据税前单价和税率计算
if 'unit_price' in data or 'tax_rate' in data:
tax_multiplier = 1 + (float(data.get('tax_rate', stock.tax_rate or 0)) / 100)
stock.post_tax_unit_price = float(stock.pre_tax_unit_price) * tax_multiplier
if 'in_quantity' in data:
diff = float(data['in_quantity']) - float(stock.in_quantity)
@ -195,8 +213,7 @@ class BuyInboundService:
stock.stock_quantity = float(stock.stock_quantity) + diff
stock.available_quantity = float(stock.available_quantity) + diff
if 'unit_price' in data: stock.pre_tax_unit_price = float(data['unit_price'])
# 重新计算总价
stock.total_price = float(stock.in_quantity) * float(stock.pre_tax_unit_price)
db.session.commit()
return stock