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from day23sk.model.order_model import Order
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def add_student_dao(o,db):
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try:
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o1 = Order( **o) # 将字典解析成键值对关键字参数输入 title = xxx, userid = XXX
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db.add(o1)
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except Exception:
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db.rollback()
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return False
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else:
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db.commit()
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return True
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def update_orders_dao(id,update_data,db):
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try: # 数据更新是有返回值的,返回的是影响的行数
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rows = db.query( Order ).filter( Order.id == id ).update( update_data )
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except Exception:
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db.rollback()
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return False
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else:
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db.commit()
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return rows
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def delete_orders_dao(id,db):
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try:
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rows = db.query( Order ).filter( Order.id == id ).delete()
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except Exception:
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db.rollback()
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return None
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else:
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db.commit()
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return rows
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def get_orders_dao(order_title,db):
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try:
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rows = db.query( Order ).filter( Order.title == order_title ).all()
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except Exception:
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db.rollback()
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return False
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else:
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db.commit()
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return rows
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