82 lines
2.3 KiB
Python
82 lines
2.3 KiB
Python
from class_management.model.class_management_model import ClassInfo
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from sqlalchemy.orm import Session
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#查询
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def get_class_dao(c:dict,db:Session) :
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q = db.query(ClassInfo).filter(ClassInfo.is_delete == 0)#is_delete=0代表未删除
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if c.get('class_id'):
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q = q.filter(ClassInfo.class_id == c.get('class_id'))
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if c.get('class_name'):
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q = q.filter(ClassInfo.class_name == c.get('class_name'))
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if c.get('class_teacher'):
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q = q.filter(ClassInfo.class_teacher == c.get('class_teacher'))
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if c.get('class_lecturer'):
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q = q.filter(ClassInfo.class_lecturer == c.get('class_lecturer'))
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if c.get('class_start_time'):
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q = q.filter(ClassInfo.class_start_time == c.get('class_start_time'))
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if c.get('class_end_time'):
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q = q.filter(ClassInfo.class_end_time == c.get('class_end_time'))
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c1 = q.all()
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if not c1:
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return []
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return[
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{'班级编号':i.class_id
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,'班级名称':i.class_name
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,'班主任':i.class_teacher
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,'授课老师':i.class_lecturer
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,'开课时间':i.class_start_time
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,'结课时间':i.class_end_time
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} for i in c1
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]
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#新增
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def add_class_dao(c:dict,db:Session):
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try:
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exist_class = db.query(ClassInfo)\
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.filter(ClassInfo.class_name == c['class_name']
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,ClassInfo.is_delete == 0)\
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.first()
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if exist_class:
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msg = '班级名称已存在'
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print(msg)
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return [False,msg]
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c1 = ClassInfo(**c)
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db.add(c1)
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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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#修改
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def update_class_dao(cid:int,update_data,db):
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try:
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rows = db.query(ClassInfo)\
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.filter(ClassInfo.class_id == cid
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,ClassInfo.is_delete==0)\
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.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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#删除
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def delete_class_dao(cid,db):
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try:
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rows = db.query(ClassInfo)\
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.filter(ClassInfo.class_id == cid,ClassInfo.is_delete==0)\
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.update({'is_delete':1})
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except:
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db.rollback()
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rows = 0
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else:
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db.commit()
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finally:
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return rows
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