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KCGL/inventory-backend/app/models/stock.py

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# app/models/stock.py
from app.extensions import db
from datetime import datetime
class StockBuy(db.Model):
"""
采购入库库存表
对应数据库表: stock_buy
"""
__tablename__ = 'stock_buy'
# 主键
id = db.Column(db.Integer, primary_key=True)
# 【核心关联】外键关联 material_base 表
base_id = db.Column(db.Integer, db.ForeignKey('material_base.id'), nullable=False)
# --- 身份标识 ---
sku = db.Column(db.String(100))
in_date = db.Column(db.Date)
barcode = db.Column(db.String(100)) # 条码
serial_number = db.Column(db.String(100)) # 序列号
batch_number = db.Column(db.String(100)) # 批号
# --- 数量 ---
in_quantity = db.Column(db.Numeric(19, 4), default=0)
stock_quantity = db.Column(db.Numeric(19, 4), default=0)
available_quantity = db.Column(db.Numeric(19, 4), default=0)
# --- 状态与位置 ---
status = db.Column(db.String(50)) # 在库/出库/损耗
inspection_status = db.Column(db.String(50)) # 未检/合格/不合格
warehouse_location = db.Column(db.String(100))
# --- 财务与商务 ---
unit_price = db.Column(db.Numeric(19, 4), default=0)
total_price = db.Column(db.Numeric(19, 4), default=0)
currency = db.Column(db.String(20), default='CNY')
exchange_rate = db.Column(db.Numeric(15, 6), default=1.0)
supplier_name = db.Column(db.String(255))
# [关键映射区]Python属性名 = DB列名
# 前端传 purchaser -> 存入 buyer_name
buyer_name = db.Column(db.String(100))
# 前端传 purchaser_email -> 存入 buyer_email
buyer_email = db.Column(db.String(100))
# 前端传 source_link -> 存入 original_link
original_link = db.Column(db.Text)
detail_link = db.Column(db.Text)
arrival_photo = db.Column(db.Text)
# [这就是报错缺失的字段],请确保执行了 ALTER TABLE
remark = db.Column(db.Text)
# 【关系定义】
# 建立与 MaterialBase 的关系,方便通过 stock.material 访问基础信息
material = db.relationship('MaterialBase', back_populates='stock_buys')
def to_dict(self):
"""
序列化:将模型转换为字典,主要用于单条查询或内部调用
列表查询主要依赖 Service 层的手动构建以提高性能
"""
return {
'id': self.id,
'base_id': self.base_id,
# 级联基础信息 (防止 None 报错)
'material_name': self.material.name if self.material else '',
'spec_model': self.material.spec_model if self.material else '',
'category': self.material.category if self.material else '',
'unit': self.material.unit if self.material else '',
'material_type': self.material.material_type if self.material else '',
# 实体信息
'sku': self.sku,
'inbound_date': self.in_date.strftime('%Y-%m-%d') if self.in_date else '',
'barcode': self.barcode,
'serial_number': self.serial_number,
'batch_number': self.batch_number,
'warehouse_loc': self.warehouse_location,
'status': self.status,
'inspection_status': self.inspection_status,
'remark': self.remark,
# 数量 (转为float防止json序列化报错)
'in_quantity': float(self.in_quantity or 0),
'qty_inbound': float(self.in_quantity or 0), # 兼容字段
'stock_quantity': float(self.stock_quantity or 0),
'qty_stock': float(self.stock_quantity or 0), # 兼容字段
'available_quantity': float(self.available_quantity or 0),
'qty_available': float(self.available_quantity or 0), # 兼容字段
# 财务
'unit_price': float(self.unit_price or 0),
'total_price': float(self.total_price or 0),
'currency': self.currency,
'exchange_rate': float(self.exchange_rate or 1.0),
# 商务 (字段映射)
'supplier_name': self.supplier_name,
'purchaser': self.buyer_name, # 映射回前端
'purchaser_email': self.buyer_email, # 映射回前端
'source_link': self.original_link, # 映射回前端
'detail_link': self.detail_link,
'arrival_photo': self.arrival_photo
}