一、作业需求:

用户角色,讲师\学员, 用户登陆后根据角色不同,能做的事情不同,分别如下

讲师视图:

  管理班级,可创建班级,根据学员qq号把学员加入班级
      可创建指定班级的上课纪录,注意一节上课纪录对应多条学员的上课纪录, 即每节课都有整班学员上, 为了纪录每位学员的学习成绩,需在创建每节上课纪录是,同时为这个班的每位学员创建一条上课纪录
      为学员批改成绩, 一条一条的手动修改成绩

学员视图:

提交作业
    查看作业成绩
    一个学员可以同时属于多个班级,就像报了Linux的同时也可以报名Python一样, 所以提交作业时需先选择班级,再选择具体上课的节数
    附加:学员可以查看自己的班级成绩排名

二、

一、作业需求:

用户角色,讲师\学员, 用户登陆后根据角色不同,能做的事情不同,分别如下

讲师视图:

      管理班级,可创建班级,根据学员qq号把学员加入班级
  可创建指定班级的上课纪录,注意一节上课纪录对应多条学员的上课纪录, 即每节课都有整班学员上, 为了纪录每位学员的学习成绩,需在创建每节上课纪录是,同时为这个班的每位学员创建一条上课纪录
  为学员批改成绩, 一条一条的手动修改成绩 学员视图: 提交作业
查看作业成绩
一个学员可以同时属于多个班级,就像报了Linux的同时也可以报名Python一样, 所以提交作业时需先选择班级,再选择具体上课的节数
附加:学员可以查看自己的班级成绩排名 二、博客地址:https://www.cnblogs.com/catepython/p/9105669.html 三、运行环境 操作系统:Win10 Python:3.6.4rcl Pycharm:2017.3.4 四 、具体实现 1、借鉴了大神们的表设计结构(本人借鉴的是Assassinの 博客地址是:https://www.cnblogs.com/lianzhilei/archive/2016/10/30/6013847.html) 2、根据表结构设计在create_table.py中创建相应的表 3、根据需求搭好界面性的程序框架 4、根据程序流程图和表结构逐步完成各模块函数 5、边写函数发放边调试、测试等 五、测试流程 1、在测试调试过程中也发现了一些bug 例如: 学生QQ是唯一,但先输入用户名在输入已存在的QQ号这时程序报了错(现已修复) 2、也经常发现了跨表数据的现象 例如: 查询学员成绩排名是把不在同一个班级或课节的学员也查出来(多做了一些判断已修复类似现象) 3、对程序中也完善了一些唯一、不能为空、成绩必须是整数0-100范围判断... 六、备注
1、Assassinの的表设计很完美,几乎没有冗余数据,但查询关联起来对于我等菜鸟还真是有点伤脑。

readme

三、程序流程图

老男孩Day13作业:ORM学员管理系统-LMLPHP

四、数据结构图

老男孩Day13作业:ORM学员管理系统-LMLPHP

五、程序架构图

老男孩Day13作业:ORM学员管理系统-LMLPHP

六、核心代码

bin目录

#-*-coding:utf-8 -*-
# Author: D.Gray from core import main if __name__ == '__main__': start = main.Action()
start.func()

start

conf目录 配置文件

#-*-coding:utf-8 -*-
# Author: D.Gray
import sqlalchemy
from sqlalchemy import create_engine engine = create_engine('mysql+pymysql://root:admin1988@localhost/Manager?charset=utf8')

setting

core目录 主程序文件

#-*-coding:utf-8 -*-
# Author: D.Gray
import sqlalchemy
from conf.setting import engine
from sqlalchemy.orm import sessionmaker
from database.create_table import Teacher,Class
from src.Student_view import Student_manager
from src.Teacher_view import Teacher_manager
class Action(object):
def __init__(self):
Session_class = sessionmaker(bind=engine)
self.session = Session_class()
self.initialize_database() def func(self):
while True:
mesg = '''\033[35;1m 欢迎进入CLASS_SYSTEM系统
1 讲师视图
2 学生视图
q 退出管理系统\033[0m '''
print(mesg)
use_choice = input("\033[34;0m请输入你进入的视图:\033[0m")
if use_choice == '':
Teacher_manager(self.session)
elif use_choice == '':
Student_manager(self.session)
elif use_choice == 'q':
exit("\033[31;0m感谢使用管理系统,\033[0m")
break
else:
print("\033[31;1m请输入正确的选项\033[0m") def initialize_database(self):
rest = self.session.query(Teacher).filter(Teacher.teacher_id>0).all()
if not rest:
c1 = Class(class_name = 'S14',course = 'Python')
t1 = Teacher(teacher_name = 'Alex') t1.teacher_class = [c1]
self.session.add_all([c1,t1])
self.session.commit()
print('数据添加成')

main

database目录  数据文件

#-*-coding:utf-8 -*-
# Author: D.Gray
import sqlalchemy
from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker,relationship
from sqlalchemy import Column,String,Integer,Table,ForeignKey
from conf.setting import engine Base = declarative_base() teacher_m2m_class = Table(
'teacher_m2m_class',Base.metadata,
Column('teacher_id',Integer,ForeignKey('teacher.teacher_id'),nullable=False),
Column('class_id',Integer,ForeignKey('class.class_id'),nullable=False)
) class_m2m_student = Table(
'class_m2m_student',Base.metadata,
Column('class_id',Integer,ForeignKey('class.class_id'),nullable=False),
Column('stu_id',Integer,ForeignKey('student.stu_id'),nullable=False)
) class Teacher(Base):
__tablename__ = 'teacher'
teacher_id = Column(Integer,primary_key=True)
teacher_name = Column(String(64),nullable=False)
teacher_class = relationship('Class',secondary = teacher_m2m_class,backref = 'teacher_keys') def __repr__(self):
return '讲师:【%s】'%(self.teacher_name) class Class(Base):
__tablename__ = 'class'
class_id = Column(Integer,primary_key=True)
class_name = Column(String(64),nullable=False)
course = Column(String(64),nullable=False)
class_student = relationship('Student',secondary = class_m2m_student,backref = 'class_keys') def __repr__(self):
return '班级:【%s】'%(self.class_name) class Student(Base):
__tablename__ = 'student'
stu_id = Column(Integer,primary_key=True)
stu_name = Column(String(64),nullable=False)
QQ = Column(String(64),nullable=False,unique=True) def __repr__(self):
return '学生名:【%s】'%(self.stu_name) class Lesson(Base):
__tablename__ = 'lesson'
lesson_id = Column(Integer,primary_key=True)
lesson_name = Column(String(64),nullable=False) def __repr__(self):
return '课节名:【%s】'%(self.lesson_name) class Study_record(Base):
__tablename__ = 'study_record'
id = Column(Integer,primary_key=True)
class_m2m_lesson_id = Column(Integer,ForeignKey('class_m2m_lesson.id'),nullable=False)
stu_id = Column(Integer,ForeignKey('student.stu_id'),nullable=False)
status = Column(String(64),nullable=False,default='Y')
score = Column(Integer,nullable=False,default=0) class_m2m_lessons = relationship('class_m2m_lesson',backref = 'study_keys')
study_students = relationship('Student',backref = 'study_student_keys') def __repr__(self):
return "\033[32;0m%s,%s,状态:【%s】,成绩:【%s】\33[0m"\
%(self.class_m2m_lessons,self.study_students,self.status,self.score) class class_m2m_lesson(Base):
__tablename__ = 'class_m2m_lesson'
id = Column(Integer,primary_key=True)
class_id = Column(Integer,ForeignKey('class.class_id'),nullable=False)
lesson_id = Column(Integer,ForeignKey('lesson.lesson_id'),nullable=False)
classes = relationship('Class',backref = 'class_lesson_keys')
lessons = relationship('Lesson',backref = 'lesson_class_keys') def __repr__(self):
return '<%s %s>'%(self.class_id,self.lesson_id) Base.metadata.create_all(engine)
print('创建表成功')

create_table

src目录 主要类文件

# -*- coding:utf-8 -*-
# Author:D.Gray
from database.create_table import Class,Teacher,Student,class_m2m_lesson,class_m2m_student,Lesson,Study_record
class Teacher_manager(object):
def __init__(self,session):
self.session = session
self.authentication()
self.handle() def authentication(self):
'''
教师认证函数
:return:
'''
while True:
teacher_input = input("\033[33;0m请输入讲师名:\033[0m").strip()
self.teacher_obj = self.session.query(Teacher).filter(Teacher.teacher_name == teacher_input).first()
#print(teacher_obj)
if self.teacher_obj is None:
print("\33[31;1m输入错误:请输入有效的讲师名\33[0m")
continue
else:
break def handle(self):
'''
教师操作视图
:return:
'''
while True:
print("\033[35;1m欢迎【%s】进入讲师管理系统\n"
"1、显示可管理的班级\n"
"2、创建班级\n"
"3、添加学员\n"
"4、添加课程节次\n"
"5、创建上课记录\n"
"6、修改学员成绩\n"
"exit 退出管理系统\n\033[0m"%self.teacher_obj.teacher_name)
self.dic = {
'':self.show_classes,
'':self.add_class,
'':self.add_student,
'':self.add_lesson,
'':self.add_study_record,
'':self.modify_scores,
'exit':self.exit
}
action_input = input("\033[34;0m请输入进行操作的命令:\033[0m")
if action_input in self.dic.keys():
self.dic[action_input]()
else:
print("\033[31;0m请输入有效操作的命令\033[0m") def show_classes(self):
'''
查看所有管理的班级
:return:
'''
for class_obj in self.teacher_obj.teacher_class:
print('\033[32;1m%s 班级名:%s 课程:%s\033[0m'
% (self.teacher_obj.teacher_name, class_obj.class_name, class_obj.course)) def add_class(self):
'''
添加教室
:return:
'''
class_input = input("\033[33;0m请输入创建班级的名称:\033[0m").capitalize()
class_obj = self.session.query(Class).filter(Class.class_name==class_input).first()
if class_obj is None:
course_input = input("\033[33;0m请输入创建班级的课程:\033[0m").capitalize()
class_obj = Class(class_name = class_input,course = course_input)
self.teacher_obj.teacher_class.append(class_obj)
self.session.commit()
print("\033[32;1m班级创建成功\033[0m")
else:
print("\33[31;1m系统错误:班级已经存在\33[0m") def add_student(self):
'''
添加学生
:return:
'''
class_input = input("\033[33;0m请输入要添加学员的班级名:\033[0m").capitalize()
class_obj = self.session.query(Class).filter(Class.class_name == class_input).first()
if class_obj and class_obj.teacher_keys[0] == self.teacher_obj:
stu_input = input("\033[33;0m请输入要添加的学员名:\033[0m").capitalize()
stu_obj = self.session.query(Student).filter(Student.stu_name == stu_input).first()
if stu_obj is None:
QQ_input = input("\033[33;0m请输入要添加的学员QQ:\033[0m").capitalize()
if QQ_input.isdigit():
QQ_input = int(QQ_input)
stu_qq_obj = self.session.query(Student).filter(Student.QQ == QQ_input).first()
if stu_qq_obj is None:
stu_obj = Student(stu_name = stu_input,QQ = QQ_input)
class_obj.class_student.append(stu_obj)
self.session.add(stu_obj)
self.session.commit()
print('\033[32;1m学员添加成功\033[0m')
else:
print('\033[31;1mQQ号已存在\033[0m')
else:
print('\033[31;1mQQ号必须是数子\033[0m')
else:
print("\33[31;1m系统错误:学员已经存在\33[0m")
else:
print("\33[31;1m输入错误:班级不存在或没有权限管理此班级\33[0m") def add_lesson(self):
'''
添加课程节次
:return:
'''
class_input = input("\033[33;0m请输入要添加节次的班级名:\033[0m").capitalize()
class_obj = self.session.query(Class).filter(Class.class_name == class_input).first()
if class_obj and class_obj.teacher_keys[0] == self.teacher_obj:
lesson_input = input("\033[33;0m请输入添加的lesson名(类day1):\033[0m")
lesson_obj = self.session.query(Lesson).filter(Lesson.lesson_name == lesson_input).first()
if lesson_obj is None: #所需添加的lesson名不存在可创建
lesson_obj = Lesson(lesson_name = lesson_input)
self.session.add(lesson_obj)
self.session.commit()
print('\033[32;1mlesson表数据创建成功\033[0m') #在class_m2m_lesson创建一条关联数据
rest = (self.session.query(class_m2m_lesson).filter(class_m2m_lesson.class_id == class_obj.class_id).
filter(class_m2m_lesson.lesson_id == lesson_obj.lesson_id)).first()
if rest is None:
rest = class_m2m_lesson(class_id = class_obj.class_id,lesson_id = lesson_obj.lesson_id)
self.session.add(rest)
self.session.commit()
print('\033[32;1m class_m2m_lesson表数据创建成功\033[0m')
else:
print("\33[31;1m系统错误:课节已经存在\33[0m")
else:
print("\33[31;1m输入错误:班级不存在或没有权限管理此班级\33[0m") def add_study_record(self):
'''
添加上课记录数据
:return:
'''
class_input = input("\033[33;0m请输入要添加记录的班级名:\033[0m").capitalize()
class_obj = self.session.query(Class).filter(Class.class_name == class_input).first()
if class_obj and class_obj.teacher_keys[0] == self.teacher_obj:
lesson_input = input("\033[33;0m请输入添加记录的lesson名(类day1):\033[0m")
lesson_obj = self.session.query(Lesson).filter(Lesson.lesson_name == lesson_input).first()
if lesson_obj is not None: #课节已存在
class_lesson_obj = self.session.query(class_m2m_lesson).\
filter(class_m2m_lesson.class_id == class_obj.class_id).\
filter(class_m2m_lesson.lesson_id == lesson_obj.lesson_id).first()
if class_lesson_obj is not None:
study_record_obj = self.session.query(Study_record).\
filter(Study_record.class_m2m_lesson_id == class_lesson_obj.id).first()
if study_record_obj is not None:
while True:
print('\033[32;1m已有上课记录的学生信息\033[0m')
for student in class_obj.class_student: # 循环遍历学生是否已在上课记录表中已记录
stu_id_obj = self.session.query(Study_record). \
filter(Study_record.stu_id == student.stu_id).\
filter(Study_record.class_m2m_lesson_id == class_lesson_obj.id).first()
if stu_id_obj is not None: # 打印有上课记录的学生信息
print('\033[32;1m学生名:【%s】 Status:【%s】 '
'成绩:【%s】\033[0m'
%(student.stu_name,stu_id_obj.status,stu_id_obj.score))
stu_input = input("\033[33;0m请输入要添加记录的学生名[Q 退出]:\033[0m").capitalize()
if stu_input == 'Q':break
stu_obj = self.session.query(Student).filter(Student.stu_name == stu_input).first()
if stu_obj is not None: # 判断输入的学生名是否存在
study_stu_obj = self.session.query(Study_record).\
filter(Study_record.stu_id == stu_obj.stu_id).\
filter(Study_record.class_m2m_lesson_id == class_lesson_obj.id).first()
if study_stu_obj is None: #判断该学生在Study_record表中有记录
status_input = input("添加%s 的上课状态(Y/N):" % stu_obj.stu_name).capitalize()
if status_input != 'N': status_input = 'Y'
while True:
score_input = input("添加 %s 的成绩:"
% stu_obj.stu_name).capitalize()
if score_input.isdigit():
score_input = int(score_input)
if score_input >= 0 and score_input <= 100:
study_record_obj_new = Study_record(
class_m2m_lesson_id = class_lesson_obj.id,
stu_id = stu_obj.stu_id,
status = status_input,
score = score_input
)
self.session.add(study_record_obj_new)
self.session.commit()
print('\033[32;1m记录添加完成\033[0m')
break
else:
print('\033[31;1m请输入成绩超出有效范围\033[0m')
else:
print('\033[31;1m请输入有效成绩\033[0m')
else:
print("\33[31;1m系统错误:该学生上课记录已存在\33[0m")
else:
print("\33[31;1m系统错误:该学生未存在\33[0m")
else:
print("\33[31;1m系统错误:class_m2m_lesson表中无记录\33[0m")
else:
print("\33[31;1m系统错误:课节不存在\33[0m")
else:
print("\33[31;1m输入错误:班级不存在或没有权限管理此班级\33[0m") def modify_scores(self):
'''
修改学生成绩函数
:return:
'''
class_input = input("\033[33;0m请输入要添加记录的班级名:\033[0m").capitalize()
class_obj = self.session.query(Class).filter(Class.class_name == class_input).first()
if class_obj and class_obj.teacher_keys[0] == self.teacher_obj:
lesson_input = input("\033[33;0m请输入添加记录的lesson名(类day1):\033[0m")
lesson_obj = self.session.query(Lesson).filter(Lesson.lesson_name == lesson_input).first()
if lesson_obj is not None: # 课节已存在
class_lesson_obj = self.session.query(class_m2m_lesson). \
filter(class_m2m_lesson.class_id == class_obj.class_id). \
filter(class_m2m_lesson.lesson_id == lesson_obj.lesson_id).first()
if class_lesson_obj is not None: #判断该课节在class_m2m_lesson表是否存在
study_record_obj = self.session.query(Study_record). \
filter(Study_record.class_m2m_lesson_id == class_lesson_obj.id).first()
if study_record_obj is not None:
while True:
print('\033[32;1m已有上课记录的学生信息\033[0m')
for student in class_obj.class_student: # 循环遍历学生是否已在上课记录表中已记录
stu_id_obj = self.session.query(Study_record). \
filter(Study_record.stu_id == student.stu_id).\
filter(Study_record.class_m2m_lesson_id == class_lesson_obj.id).first()
if stu_id_obj is not None: # 打印未在有上课记录的学生信息
print('\033[32;1m学生名:【%s】 Status:【%s】 '
'成绩:【%s】\033[0m'
%(student.stu_name,stu_id_obj.status,stu_id_obj.score))
stu_input = input("\033[33;0m请输入要修改记录的学生名[Q 退出]:\033[0m").capitalize()
if stu_input == 'Q':break
# 判断输入的学生名是否存在
stu_obj = self.session.query(Student).filter(Student.stu_name == stu_input).first()
if stu_obj is not None:
#判断该学生在Study_record表中有记录
study_stu_obj = self.session.query(Study_record).\
filter(Study_record.stu_id == stu_obj.stu_id).\
filter(Study_record.class_m2m_lesson_id == class_lesson_obj.id).first()
if study_stu_obj is not None: #该学生已有上课记录
status_input = input("修改%s 的上课状态(Y/N):" % stu_obj.stu_name).capitalize()
if status_input != 'N': status_input = 'Y'
while True:
score_input = input("修改 %s 的成绩:"
% stu_obj.stu_name).capitalize()
if score_input.isdigit():
score_input = int(score_input)
if score_input >= 0 and score_input <= 100:
study_stu_obj.status = status_input
study_stu_obj.score = score_input
self.session.commit()
print('\033[32;1m记录修改完成\033[0m')
break
else:
print('\033[31;1m请输入成绩超出有效范围\033[0m')
else:
print('\033[31;1m请输入有效成绩\033[0m')
else:
print("\33[31;1m系统错误:该学生上课记录未存在\33[0m")
else:
print("\33[31;1m系统错误:该学生未存在\33[0m")
else:
print("\33[31;1m系统错误:上课记录未存在\33[0m")
else:
print("\33[31;1m系统错误:class_m2m_lesson表中无记录\33[0m")
else:
print("\33[31;1m系统错误:课节不存在\33[0m")
else:
print("\33[31;1m输入错误:班级不存在或没有权限管理此班级\33[0m") def exit(self):
exit('\033[31;0m感谢使用管理系统,\033[0m')

teacher_view

# -*- coding:utf-8 -*-
# Author:D.Gray
from database.create_table import Class,Teacher,Student,class_m2m_lesson,class_m2m_student,Lesson,Study_record
import sqlalchemy
from sqlalchemy import func
class Student_manager(object):
def __init__(self,session):
self.session = session
self.authentication()
self.handle() def authentication(self):
'''
学生认证函数
:return:
'''
while True:
student_input = input("\033[33;0m请输入学生名:\033[0m").strip().capitalize()
self.student_obj = self.session.query(Student).filter(Student.stu_name == student_input).first()
if self.student_obj:
print('\033[32;0m学生ID:%s\n所属班级:%s\033[0m'%(self.student_obj.stu_id,self.student_obj.class_keys))
break
else:
print("\33[31;1m输入错误:请输入有效的学生名\33[0m")
continue def handle(self):
'''
学生视图执行函数
:return:
'''
while True:
print("\033[35;1m欢迎【%s】进入学员管理系统\n"
"1、上传作业\n"
"2、查看作业成绩\n"
"3、查看班级排名\n"
"exit 退出管理系统\n\033[0m" % self.student_obj.stu_name)
user_func = input("\033[34;0m请输入进行操作的命令:\033[0m")
self.dic = {
'':self.up_homework,
'':self.show_homework,
'':self.show_rank,
'exit':self.exit
}
if user_func in self.dic.keys():
self.dic[user_func]()
else:
print("\033[31;0m请输入有效操作的命令\033[0m") def up_homework(self):
'''
上传作业函数
:return:
'''
#print('in the up_homework')
class_name = input("\033[33;0m请输入班级名:\033[0m").capitalize().strip()
class_obj = self.student_obj.class_keys
for classes in class_obj:
if classes.class_name == class_name:
if class_name: #判断学生是否存在所输入班级中
lesson_name = input("\033[33;0m请输入课节名:\033[0m").capitalize().strip()
lesson_obj = self.session.query(Lesson).filter(Lesson.lesson_name == lesson_name).first()
if lesson_obj: #判断课节是否存在
class_m2m_lesson_obj = self.session.query(class_m2m_lesson).filter(
class_m2m_lesson.class_id == classes.class_id
).filter(class_m2m_lesson.lesson_id == lesson_obj.lesson_id).first()
if class_m2m_lesson_obj: #判断班级和课节是否在class_m2m_lesson表中
study_record_obj = self.session.query(Study_record).filter(
Study_record.class_m2m_lesson_id==class_m2m_lesson_obj.id
).filter(Study_record.stu_id==self.student_obj.stu_id).first() if study_record_obj: #判断测试学生在study_record表是否有记录
if study_record_obj.status == 'N': #判断用户作业是否已提交
print('\033[32;0m作业提交情况:未提交\033[0m' )
up_input = input('\033[33;0m您本次课节作业是否选择提交(Y/N)>>>:\033[0m')\
.strip().capitalize()
if up_input == 'Y':
study_record_obj.status = up_input
self.session.commit()
print('\033[32;0m本次课节作业提交完成\033[0m')
else:
print('\033[31;0m请按时提交本次课节作业\033[0m')
break
else:
print('\033[32;0m您本次课节作业情况:已提交\033[0m')
else:
print("\033[31;1m系统错误:未有该上课记录\033[0m")
else:
print("\033[31;1m系统错误:class_m2m_lesson表未创建\033[0m")
else:
print("\33[31;1m系统错误:课节未创建\33[0m")
else:
print("\33[31;1m输入错误:班级不存在或学生不在此班级\33[0m") def show_homework(self):
'''
查看成绩函数
:return:
'''
class_name = input("\033[33;0m请输入班级名:\033[0m").capitalize().strip()
class_obj = self.student_obj.class_keys
for classes in class_obj:
if classes.class_name == class_name:
if class_name: # 判断学生是否存在所输入班级中
lesson_name = input("\033[33;0m请输入课节名:\033[0m").capitalize().strip()
lesson_obj = self.session.query(Lesson).filter(Lesson.lesson_name == lesson_name).first()
if lesson_obj:
class_m2m_lesson_obj = self.session.query(class_m2m_lesson).filter(
class_m2m_lesson.class_id == classes.class_id
).filter(class_m2m_lesson.lesson_id == lesson_obj.lesson_id).first()
if class_m2m_lesson_obj:
study_record_obj = self.session.query(Study_record).filter(
Study_record.class_m2m_lesson_id == class_m2m_lesson_obj.id
).filter(Study_record.stu_id == self.student_obj.stu_id).first() if study_record_obj:
if study_record_obj.status == 'N':
print('\033[32;0m作业提交情况:未提交\033[0m')
print('\033[31;0m请按时提交本次课节作业\033[0m')
else:
print('\033[32;0m本次课节作业成绩:【%s】分\033[0m'%study_record_obj.score)
break
else:
print("\033[31;1m系统错误:未有该上课记录\033[0m")
else:
print("\033[31;1m系统错误:class_m2m_lesson表未创建\033[0m")
else:
print("\33[31;1m系统错误:课节未创建\33[0m")
else:
print("\33[31;1m输入错误:班级不存在或学生不在此班级\33[0m") def show_rank(self):
'''
查看课节成绩排名函数
:return:
'''
class_name = input("\033[33;0m请输入班级名:\033[0m").capitalize().strip()
class_obj = self.student_obj.class_keys
for classes in class_obj:
if classes.class_name == class_name:
if class_name: # 判断学生是否存在所输入班级中
lesson_name = input("\033[33;0m请输入课节名:\033[0m").capitalize().strip()
lesson_obj = self.session.query(Lesson).filter(Lesson.lesson_name == lesson_name).first()
if lesson_obj:
class_m2m_lesson_obj = self.session.query(class_m2m_lesson).filter(
class_m2m_lesson.class_id == classes.class_id
).filter(class_m2m_lesson.lesson_id == lesson_obj.lesson_id).first()
if class_m2m_lesson_obj:
study_record_obj = self.session.query(Study_record).filter(
Study_record.class_m2m_lesson_id == class_m2m_lesson_obj.id
).filter(Study_record.stu_id == self.student_obj.stu_id).first() if study_record_obj:
if study_record_obj.status == 'N':
print('\033[32;0m作业提交情况:未提交\033[0m')
print('\033[31;0m请按时提交本次课节作业\033[0m')
else:
print('\033[32;0m本次课节作业成绩:【%s】分\033[0m' % study_record_obj.score)
#成绩从大到小排序
study_score_obj = self.session.query(Study_record.stu_id,Study_record.score).\
filter(Study_record.score>0).\
filter(Study_record.class_m2m_lesson_id == class_m2m_lesson_obj.id).\
order_by(Study_record.score.desc()).limit(10) #只取前十名成绩
print('成绩排名列表:')
for study_score in study_score_obj:
student_obj = self.session.query(Student).\
filter(Student.stu_id == study_score.stu_id).first()
print('%s 成绩:【%s】'%(student_obj.stu_name,study_score.score)) else:
print("\033[31;1m系统错误:未有该上课记录\033[0m")
else:
print("\033[31;1m系统错误:class_m2m_lesson表未创建\033[0m")
else:
print("\33[31;1m系统错误:课节未创建\33[0m")
else:
print("\33[31;1m输入错误:班级不存在或学生不在此班级\33[0m") def exit(self):
exit('\033[31;0m感谢使用管理系统,\033[0m')

student_view

04-29 01:50