38 lines
1.3 KiB
Python
38 lines
1.3 KiB
Python
from app.extensions import db
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class BomDraftTable(db.Model):
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__tablename__ = 'bom_draft_table'
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id = db.Column(db.Integer, primary_key=True)
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bom_no = db.Column(db.String(100), nullable=False, index=True, comment='BOM编号')
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version = db.Column(db.String(50), nullable=False, default='V1.0', index=True, comment='版本')
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parent_id = db.Column(
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db.Integer,
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db.ForeignKey('material_base.id', ondelete='SET NULL'),
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nullable=True,
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comment='父件物料ID'
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)
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child_id = db.Column(
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db.Integer,
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db.ForeignKey('material_base.id', ondelete='SET NULL'),
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nullable=True,
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comment='子件物料ID'
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)
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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), default=0, nullable=True, comment='损耗率%')
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remark = db.Column(db.Text, comment='备注')
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updated_at = db.Column(db.DateTime, default=db.func.now(), onupdate=db.func.now(), comment='更新时间')
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parent = db.relationship(
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'MaterialBase',
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foreign_keys=[parent_id],
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backref='bom_draft_parents',
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passive_deletes=True
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)
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child = db.relationship(
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'MaterialBase',
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foreign_keys=[child_id],
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backref='bom_draft_children',
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passive_deletes=True
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) |