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KCGL/inventory-backend/app/services/inbound/buy_service.py
2026-02-06 10:16:37 +08:00

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from app.extensions import db
# 引用新的模型类 StockBuy
from app.models.inbound.buy import StockBuy
from app.models.base import MaterialBase
# 尝试导入出库模型,如果不存在则忽略(防止报错影响入库功能)
try:
from app.models.outbound import TransOutbound
except ImportError:
TransOutbound = None
from datetime import datetime, timedelta, timezone
from sqlalchemy import or_, func, text, and_
import traceback
import json
class BuyInboundService:
# ============================================================
# 1. 基础物料搜索
# ============================================================
@staticmethod
def search_base_material(keyword):
"""搜索基础物料"""
try:
query = MaterialBase.query.filter(MaterialBase.is_enabled == True)
if keyword:
query = query.filter(
or_(
MaterialBase.name.ilike(f'%{keyword}%'),
MaterialBase.spec_model.ilike(f'%{keyword}%')
)
)
query = query.order_by(MaterialBase.id.desc()).limit(20)
results = []
for item in query.all():
results.append({
'id': item.id, 'name': item.name, 'spec': item.spec_model,
'category': item.category, 'unit': item.unit,
'type': item.material_type, 'status': '启用'
})
return results
except Exception as e:
traceback.print_exc()
return []
# ============================================================
# 2. 新增入库逻辑 (强制北京时间)
# ============================================================
@staticmethod
def handle_inbound(data):
"""新增入库"""
try:
base_id = data.get('base_id')
if not base_id: raise ValueError("必须选择基础物料")
material = MaterialBase.query.get(base_id)
if not material: raise ValueError("物料不存在")
# [核心修改] 获取当前北京时间 (UTC+8)
# 无论服务器在 UTC 还是其他时区,这里强制转换为 UTC+8 并去掉时区信息存入数据库
beijing_tz = timezone(timedelta(hours=8))
current_time = datetime.now(beijing_tz).replace(tzinfo=None)
in_date_val = current_time
if data.get('in_date'):
try:
date_str = str(data['in_date'])
# 如果前端传了时分秒,尝试直接解析
if len(date_str) > 10:
in_date_val = datetime.strptime(date_str, '%Y-%m-%d %H:%M:%S')
else:
# 如果只传了日期,使用该日期 + 当前北京时间的时分秒
d_temp = datetime.strptime(date_str, '%Y-%m-%d')
in_date_val = datetime(d_temp.year, d_temp.month, d_temp.day,
current_time.hour, current_time.minute, current_time.second)
except:
# 解析失败则使用当前北京时间
in_date_val = current_time
in_qty = float(data.get('in_quantity') or 0)
u_price = float(data.get('unit_price') or 0)
# [核心逻辑] 获取全局打印流水号
try:
seq_sql = text("SELECT nextval('global_print_seq')")
result = db.session.execute(seq_sql)
next_global_id = result.scalar()
except Exception:
# 如果序列不存在,回退处理(或在数据库创建序列)
print("Warning: Sequence global_print_seq not found.")
next_global_id = None
# SKU 生成逻辑:如果没有 ID用临时随机数或空通常应该依赖 next_global_id
if next_global_id:
generated_sku = str(next_global_id).zfill(10)
else:
generated_sku = datetime.now().strftime('%Y%m%d%H%M%S') # 降级方案
final_barcode = data.get('barcode') or generated_sku
arrival_list = data.get('arrival_photo', [])
report_list = data.get('inspection_report', [])
if not isinstance(arrival_list, list): arrival_list = []
if not isinstance(report_list, list): report_list = []
new_stock = StockBuy(
base_id=material.id,
global_print_id=next_global_id,
sku=generated_sku,
barcode=final_barcode,
in_date=in_date_val, # 存入 DateTime 对象
serial_number=data.get('serial_number'),
batch_number=data.get('batch_number'),
status=data.get('status', '在库'),
in_quantity=in_qty,
stock_quantity=in_qty,
available_quantity=in_qty,
inspection_status=data.get('inspection_status', '未检'),
warehouse_location=data.get('warehouse_location'),
unit_price=u_price,
total_price=in_qty * u_price,
currency=data.get('currency', 'CNY'),
exchange_rate=data.get('exchange_rate', 1.0),
supplier_name=data.get('supplier_name'),
buyer_name=data.get('purchaser'),
buyer_email=data.get('purchaser_email'),
original_link=data.get('source_link'),
detail_link=data.get('detail_link'),
arrival_photo=json.dumps(arrival_list),
inspection_report=json.dumps(report_list)
)
db.session.add(new_stock)
db.session.commit()
return new_stock
except Exception as e:
db.session.rollback()
raise e
# ============================================================
# 3. 更新入库逻辑
# ============================================================
@staticmethod
def update_inbound(stock_id, data):
"""更新入库"""
try:
stock = StockBuy.query.get(stock_id)
if not stock: raise ValueError("记录不存在")
field_mapping = {
'sku': 'sku', 'barcode': 'barcode',
'warehouse_location': 'warehouse_location',
'serial_number': 'serial_number', 'batch_number': 'batch_number',
'status': 'status', 'inspection_status': 'inspection_status',
'supplier_name': 'supplier_name', 'detail_link': 'detail_link',
'currency': 'currency', 'exchange_rate': 'exchange_rate',
'purchaser': 'buyer_name', 'purchaser_email': 'buyer_email',
'source_link': 'original_link'
}
for k, v in field_mapping.items():
if k in data: setattr(stock, v, data[k])
if 'arrival_photo' in data and isinstance(data['arrival_photo'], list):
stock.arrival_photo = json.dumps(data['arrival_photo'])
if 'inspection_report' in data and isinstance(data['inspection_report'], list):
stock.inspection_report = json.dumps(data['inspection_report'])
if 'in_quantity' in data:
new_qty = float(data['in_quantity'])
# 计算差值,同步更新库存量和可用量
diff = new_qty - float(stock.in_quantity)
if diff != 0:
stock.in_quantity = new_qty
stock.stock_quantity = float(stock.stock_quantity) + diff
stock.available_quantity = float(stock.available_quantity) + diff
if 'unit_price' in data:
stock.unit_price = float(data['unit_price'])
stock.total_price = float(stock.in_quantity) * float(stock.unit_price)
db.session.commit()
return stock
except Exception as e:
db.session.rollback()
raise e
# ============================================================
# 4. 删除逻辑
# ============================================================
@staticmethod
def delete_inbound(stock_id):
"""删除入库"""
try:
stock = StockBuy.query.get(stock_id)
if not stock: raise ValueError("记录不存在")
db.session.delete(stock)
db.session.commit()
return True
except Exception as e:
db.session.rollback()
raise e
# ============================================================
# 5. 获取出库流转历史
# ============================================================
@staticmethod
def get_outbound_history(stock_id):
"""获取出库历史"""
if not TransOutbound:
return []
try:
records = TransOutbound.query.filter_by(
source_table='stock_buy', stock_id=stock_id
).order_by(TransOutbound.outbound_time.desc()).all()
return [r.to_dict() for r in records]
except:
return []
# ============================================================
# 6. 获取列表 (修改:按时间倒序排序 + 展示只显示日期)
# ============================================================
@staticmethod
def get_list(page, limit, keyword=None, statuses=None):
"""
获取列表
:param statuses: 状态列表 (e.g. ['在库', '借库', '已出库'])
"""
try:
query = db.session.query(StockBuy).outerjoin(MaterialBase, StockBuy.base_id == MaterialBase.id)
# 1. 关键词搜索
if keyword:
kw = f'%{keyword}%'
query = query.filter(
or_(
MaterialBase.name.ilike(kw),
MaterialBase.spec_model.ilike(kw),
StockBuy.batch_number.ilike(kw),
StockBuy.serial_number.ilike(kw),
StockBuy.sku.ilike(kw),
StockBuy.supplier_name.ilike(kw)
)
)
# 2. 状态筛选
if not statuses:
statuses = ['在库', '借库']
if '已出库' in statuses:
# 如果明确查已出库可以包含库存为0的
query = query.filter(StockBuy.status.in_(statuses))
else:
# 默认查在库,必须保证库存 > 0
query = query.filter(
and_(
StockBuy.status.in_(statuses),
StockBuy.stock_quantity > 0
)
)
# [核心修改] 按照入库时间倒序排序 (从近到远)
pagination = query.order_by(StockBuy.in_date.desc()).paginate(page=page, per_page=limit, error_out=False)
current_items = pagination.items
def parse_img(json_str):
if not json_str: return []
try:
return json.loads(json_str) if json_str.startswith('[') else [json_str]
except:
return []
items = []
for item in current_items:
qty_stock = float(item.stock_quantity or 0)
qty_avail = float(item.available_quantity or 0)
# [核心修改] 格式化展示日期,去掉时分秒
date_display = ''
if item.in_date:
try:
date_display = item.in_date.strftime('%Y-%m-%d')
except:
date_display = str(item.in_date)[:10]
d = {
'id': item.id,
'base_id': item.base_id,
'material_name': item.material.name if item.material else '',
'spec_model': item.material.spec_model if item.material else '',
'category': item.material.category if item.material else '',
'unit': item.material.unit if item.material else '',
'material_type': item.material.material_type if item.material else '',
'sku': item.sku,
'inbound_date': date_display, # 前端展示用的日期字符串
'barcode': item.barcode,
'serial_number': item.serial_number,
'batch_number': item.batch_number,
'status': item.status,
'inspection_status': item.inspection_status,
'qty_inbound': float(item.in_quantity or 0),
'qty_stock': qty_stock,
'qty_available': qty_avail,
'sum_stock': qty_stock,
'sum_available': qty_avail,
'warehouse_loc': item.warehouse_location,
'unit_price': float(item.unit_price or 0),
'total_price': float(item.total_price or 0),
'currency': item.currency,
'exchange_rate': float(item.exchange_rate or 1),
'supplier_name': item.supplier_name,
'purchaser': item.buyer_name,
'purchaser_email': item.buyer_email,
'source_link': item.original_link,
'detail_link': item.detail_link,
'arrival_photo': parse_img(item.arrival_photo),
'inspection_report': parse_img(item.inspection_report),
'global_print_id': item.global_print_id,
'global_print_id_str': f"{item.global_print_id:08d}" if item.global_print_id else ""
}
items.append(d)
return {"total": pagination.total, "items": items}
except Exception as e:
traceback.print_exc()
return {"total": 0, "items": []}