18 lines
854 B
Python
18 lines
854 B
Python
from app.extensions import db
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class BomTable(db.Model):
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__tablename__ = 'bom_table'
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id = db.Column(db.Integer, primary_key=True)
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parent_id = db.Column(db.Integer, db.ForeignKey('material_base.id'), nullable=False)
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child_id = db.Column(db.Integer, db.ForeignKey('material_base.id'), nullable=False)
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bom_no = db.Column(db.String(100), comment='BOM编号')
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version = db.Column(db.String(50), comment='版本')
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dosage = db.Column(db.Numeric(19, 4), comment='个数')
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loss_rate = db.Column(db.Numeric(5, 2), comment='损耗率%(已废弃)', default=0, nullable=True)
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remark = db.Column(db.Text, comment='备注')
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# relationships
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parent = db.relationship('MaterialBase', foreign_keys=[parent_id], backref='bom_parents')
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child = db.relationship('MaterialBase', foreign_keys=[child_id], backref='bom_children')
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