from DoubaoTeam.schemas.statistics import NoExist
from sqlalchemy import func

#`GET /statistics/students/age-over-30`
#查询所有超过 30 岁的学员信息

def age_over_thirty(Student,db):
    student_list=db.query(Student).filter(Student.age>=30).all()
    if not student_list :
        raise NoExist('无目标年龄大于30岁')
    return student_list

def gender_count(Student,db):
    result=db.query(Student.class_id,Student.gender,func.count(Student.id)).group_by(Student.class_id,Student.gender).all()
    if not result :
        raise NoExist('班里招点人吧，要倒闭了')
    dict1 = {}
    for i,j,k in result:
        if i not in dict1 :
            dict1[i]={'男':0,'女':0}
        dict[i][j]+=k
    return dict1
#查询每次考试成绩都在 80 分以上的学生编号、姓名和成绩
def score_over_eighty(Score,Student,db):
    student_list=db.query(Student.id, Student.student_name)\
                  .join(Student,Score.student_id==Student.id).group_by(Student.student_no,Student.student_name)\
                  .having(func.min(Score.score)>80).all()
    for i in student_list:
        student_list2 = db.query(Student.student_no, Student.student_name,Score.score).join(Student,Score.student_id==Student.id).filter(i.id==Student.id).all()