55 lines
1.3 KiB
Python
55 lines
1.3 KiB
Python
from model.class_model import Class_info
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def add_class_dao(o,db):
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try:
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o1 = Class_info( **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:
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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_class_dao(class_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( Class_info ).filter( Class_info.class_id == class_id ).update( update_data )
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except:
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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 get_class_dao(class_name,db):
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try:
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rows = db.query(Class_info).filter(Class_info.class_name == class_name).filter(Class_info.is_deleted==0).all()
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except:
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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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class Student_delect_Dao:
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@staticmethod
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def soft_delete_student(db, class_id: str):
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# 先查询is_deleted为0的有效学生数据
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query = db.query(Class_info).where(
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Class_info.class_id == class_id,
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Class_info.is_deleted == 0
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)
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result = db.execute(query)
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target_student = result.scalar_one_or_none()
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return target_student
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