69 lines
2.8 KiB
Python
69 lines
2.8 KiB
Python
#stock.py
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from app.extensions import db
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from datetime import datetime
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class StockBuy(db.Model):
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__tablename__ = 'stock_buy'
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id = db.Column(db.Integer, primary_key=True)
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# 【核心关联】
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# 这里明确指定了 base_id 是外键，关联 material_base 表的 id
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base_id = db.Column(db.Integer, db.ForeignKey('material_base.id'), nullable=False)
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sku = db.Column(db.String(100))
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in_date = db.Column(db.Date)
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serial_number = db.Column(db.String(100))
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batch_number = db.Column(db.String(100))
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# 数量
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in_quantity = db.Column(db.Numeric(19, 4), default=0)
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stock_quantity = db.Column(db.Numeric(19, 4), default=0)
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available_quantity = db.Column(db.Numeric(19, 4), default=0)
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# 状态与位置
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status = db.Column(db.String(50))
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inspection_status = db.Column(db.String(50))
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warehouse_location = db.Column(db.String(100))
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# 财务与商务
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unit_price = db.Column(db.Numeric(19, 4), default=0)
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total_price = db.Column(db.Numeric(19, 4), default=0)
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currency = db.Column(db.String(20), default='CNY')
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exchange_rate = db.Column(db.Numeric(15, 6), default=1.0)
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supplier_name = db.Column(db.String(255))
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buyer_name = db.Column(db.String(100))
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buyer_email = db.Column(db.String(100))
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original_link = db.Column(db.Text)
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detail_link = db.Column(db.Text)
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arrival_photo = db.Column(db.Text)
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# 【核心关联】
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# 建立对象级别的连接，方便通过 stock.material 访问基础信息
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material = db.relationship('MaterialBase', back_populates='stock_buys')
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def to_dict(self):
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"""序列化"""
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return {
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'id': self.id,
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'base_id': self.base_id, # 前端需要这个ID来判断关联
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'material_name': self.material.name if self.material else None,
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'spec_model': self.material.spec_model if self.material else None,
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'category': self.material.category if self.material else None,
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'unit': self.material.unit if self.material else None,
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'material_type': self.material.material_type if self.material else None,
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'sku': self.sku,
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'inbound_date': self.in_date.strftime('%Y-%m-%d') if self.in_date else None,
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'serial_number': self.serial_number,
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'batch_number': self.batch_number,
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'qty_inbound': float(self.in_quantity) if self.in_quantity else 0,
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'qty_stock': float(self.stock_quantity) if self.stock_quantity else 0,
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'qty_available': float(self.available_quantity) if self.available_quantity else 0,
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'warehouse_loc': self.warehouse_location,
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'status': self.status,
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'price_unit': float(self.unit_price) if self.unit_price else 0,
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'price_total': float(self.total_price) if self.total_price else 0,
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'supplier_name': self.supplier_name
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} |