物料-采购件入库页面功能实现
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#material.py
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from app.extensions import db
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from datetime import datetime
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class MaterialBase(db.Model):
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__tablename__ = 'material_base'
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id = db.Column(db.Integer, primary_key=True)
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# 核心字段
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sku_code = db.Column(db.String(100), unique=True, nullable=False) # 唯一编码
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name = db.Column(db.String(255), nullable=False) # 名称
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spec_model = db.Column(db.String(255)) # 规格型号
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unit = db.Column(db.String(50)) # 单位
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category = db.Column(db.String(100)) # 分类
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name = db.Column(db.String(255), nullable=False) # 名称
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category = db.Column(db.String(100)) # 类别
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material_type = db.Column(db.String(100)) # 类型
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spec_model = db.Column(db.String(255)) # 规格型号
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unit = db.Column(db.String(50)) # 计量单位
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visibility_level = db.Column(db.Integer, default=0) # 信息可见等级
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manual_link = db.Column(db.Text) # 通用说明书
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product_image = db.Column(db.Text) # 通用产品图
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is_enabled = db.Column(db.Boolean, default=True) # 是否启用
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# 审计字段 (自动记录时间)
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created_at = db.Column(db.DateTime, default=datetime.utcnow)
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updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
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# 关联关系 (让 StockBuy 可以反向找到 Material)
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# 这里的 dynamic 允许在 material.stock_buys 时进行进一步过滤
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# 【核心关联】
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# 这里定义了反向关系,lazy='dynamic' 允许我们后续做 count() 查询
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# cascade='all, delete-orphan' 并不是在这里用的,因为我们是手动控制逻辑
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stock_buys = db.relationship('StockBuy', back_populates='material', lazy='dynamic')
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def to_dict(self):
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"""将对象转换为字典,方便接口返回"""
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return {
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'id': self.id,
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'sku_code': self.sku_code,
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'name': self.name,
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'spec_model': self.spec_model,
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'unit': self.unit,
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'category': self.category,
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'created_at': self.created_at.strftime('%Y-%m-%d %H:%M:%S') if self.created_at else None
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'material_type': self.material_type,
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'spec_model': self.spec_model,
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'unit': self.unit
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}
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