62 lines
2.7 KiB
Python
62 lines
2.7 KiB
Python
from datetime import datetime
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from fastapi import HTTPException,Depends
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from sqlalchemy import func
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from model.all_model import Student_Model,WlScore,Employment_info
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from util.database import get_db
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# 实现根据年龄查询学生信息的功能
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def select_age(min_age,max_age,session=Depends(get_db)):
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try:
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if min_age is None and max_age is None:
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raise HTTPException(status_code=400, detail="请至少传入一个参数")
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session = session.query(Student_Model)
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if min_age is not None:
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session = session.filter(Student_Model.age >= min_age,Student_Model.delete_status == 0)
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if max_age is not None:
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session = session.filter(Student_Model.age <= max_age,Student_Model.delete_status == 0)
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return session.all()
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except HTTPException:
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raise
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except Exception:
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raise HTTPException(status_code=500,detail="查询异常")
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# 实现统计每个班级的学员总数以及男女生的总数的功能
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def select_all(session=Depends(get_db)):
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print('1234')
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try:
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l1 = session.query(Student_Model.class_id,func.count(1)).group_by(Student_Model.class_id,Student_Model.gender).all()
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return l1
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except Exception:
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raise HTTPException(status_code=500,detail="查询异常")
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# 实现根据成绩查询学员信息的功能
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def select_score(min_score,max_score,session=Depends(get_db)):
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try:
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if min_score is None and max_score is None:
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raise HTTPException(status_code=400, detail="请至少传入一个参数")
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session = session.query(Student_Model,WlScore.score,WlScore.score)\
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.join(WlScore,WlScore.stu_id == Student_Model.stu_id,WlScore.delete_status==0,WlScore.delete_status == 0)
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if min_score is not None:
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session = session.filter(WlScore.score >= min_score)
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if min_score is not None:
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session = session.filter(WlScore.score <= max_score)
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return session.all()
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except HTTPException:
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raise
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except Exception:
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raise HTTPException(status_code=500,detail="查询异常")
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#实现查询每个学生的就业时长
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def select_emp_duration(stu_id:int,session):
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try:
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l2 = session.query(Employment_info,Student_Model.name.label('stu_name'),).join(Student_Model,stu_id==Student_Model.stu_id).filter(Employment_info.stu_id == stu_id,Employment_info.delete_status == 0).all()
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list=[]
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today=datetime.today()
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for i in l2:
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duration_days = (today - i.start_date).days
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list.append({Employment_info.stu_id:i.stu_id,
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Employment_info.offer_issuance_date:i.offer_issuance_date,
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Employment_info.company_name:i.company_name})
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