From 0b5c459120b938d7393385f419a53e848d8057ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BD=A0=E6=98=AF=E4=B8=80=E4=B8=AA=E4=B8=80=E4=B8=AA?=
 =?UTF-8?q?=E4=B8=80=E4=B8=AA=E5=BC=80=E5=8F=91=E8=80=85=E5=95=8A?=
 <60928003+C-a-r-r-y@users.noreply.github.com>
Date: Tue, 20 Jun 2023 12:03:01 +0800
Subject: [PATCH] Add files via upload

---
 school system/__pycache__/app.cpython-310.pyc | Bin 0 -> 6817 bytes
 school system/app.py                          | 204 +++++++++++++
 school system/templates/admin.html            | 268 ++++++++++++++++++
 school system/templates/login.html            |  27 ++
 school system/templates/student.html          |  94 ++++++
 5 files changed, 593 insertions(+)
 create mode 100644 school system/__pycache__/app.cpython-310.pyc
 create mode 100644 school system/app.py
 create mode 100644 school system/templates/admin.html
 create mode 100644 school system/templates/login.html
 create mode 100644 school system/templates/student.html

diff --git a/school system/__pycache__/app.cpython-310.pyc b/school system/__pycache__/app.cpython-310.pyc
new file mode 100644
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diff --git a/school system/app.py b/school system/app.py
new file mode 100644
index 0000000..abe9d1b
--- /dev/null
+++ b/school system/app.py	
@@ -0,0 +1,204 @@
+from flask import Flask, request, redirect,render_template
+from flask_sqlalchemy import SQLAlchemy
+
+app = Flask(__name__)
+app.config['SQLALCHEMY_DATABASE_URI'] = "mysql+pymysql://db_experiment3:12345@192.168.15.179/db_experiment3"
+app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+db = SQLAlchemy(app)
+
+class Student(db.Model):
+    sno = db.Column(db.String(10), primary_key=True)
+    sname = db.Column(db.String(20))
+    ssex = db.Column(db.String(4))
+    sage = db.Column(db.Integer)
+    pwd = db.Column(db.String(20))
+
+class Teacher(db.Model):
+    tno = db.Column(db.String(7), primary_key=True)
+    tname = db.Column(db.String(20))
+    tposition = db.Column(db.String(3))
+    tsalary = db.Column(db.Integer)
+    pwd = db.Column(db.String(20))
+
+class Course(db.Model):
+    cno = db.Column(db.String(4), primary_key=True)
+    cname = db.Column(db.String(40))
+    tno = db.Column(db.String(7))
+    ccredit = db.Column(db.Integer)
+
+class SC(db.Model):
+    cno = db.Column(db.String(4),db.ForeignKey('course.cno'), primary_key=True)
+    sno = db.Column(db.String(10),db.ForeignKey('student.sno'), primary_key=True)
+    grade = db.Column(db.Integer)
+    tno = db.Column(db.String(7))
+
+class Admin(db.Model):
+    ano = db.Column(db.String(10), primary_key=True)
+    pwd = db.Column(db.String(20))
+
+@app.route('/login', methods=['GET', 'POST'])
+def login():
+    if request.method == "GET":
+        return render_template('login.html')
+    else:
+        if request.form['login-method'] == 'student':
+            to_login = db.session.query(Student).get(request.form['account'])
+            if to_login is None:
+                return "没有此用户"
+            if to_login.pwd == request.form['password']:
+                print(to_login.sno + "登录成功")
+                return redirect('/'+request.form['login-method']+'/'+request.form['account'])
+            else:
+                print(to_login.sno + "密码错误")
+                return "密码错误"
+
+        elif request.form['login-method'] == 'teacher':
+            to_login = db.session.query(Teacher).get(request.form['account'])
+            if to_login is None:
+                return "没有此用户"
+            if to_login.pwd == request.form['password']:
+                print(to_login.tno + "登录成功")
+                return redirect('/'+request.form['login-method']+'/'+request.form['account'])
+            else:
+                print(to_login.tno + "密码错误")
+                return "密码错误"
+
+        elif request.form['login-method'] == 'admin':
+            to_login = db.session.query(Admin).get(request.form['account'])
+            if to_login is None:
+                return "没有此用户"
+            if to_login.pwd == request.form['password']:
+                print(to_login.ano + "登录成功")
+                return redirect('/'+request.form['login-method']+'/'+request.form['account'])
+            else:
+                print(to_login.ano + "密码错误")
+                return "密码错误"
+
+@app.route('/student/<sno>', methods=['GET', 'POST'])
+def student(sno):
+    user_info = db.session.query(Student).get(sno)
+    user_course = db.session.query(SC,Course).join(SC,SC.cno == Course.cno).filter(SC.sno == sno).all()
+    course_list = db.session.query(Course).all()
+    credit_sum = sum([x[1].ccredit for x in user_course])
+    temp = [user_course[x][1] for x in range(len(user_course))]
+    selectable_course = [x for x in course_list if x not in [user_course[x][1] for x in range(len(user_course))]]
+
+    if request.method == 'GET':
+        return render_template('student.html',
+                               username = user_info.sname,usergender = user_info.ssex,userage = user_info.sage,
+                               usercourse = user_course,totalcredit = credit_sum,
+                               selectablecourse = selectable_course)
+    if request.method == 'POST':
+        if request.form['type'] == 'changeinfo':
+            if user_info:
+                user_info.sname = request.form['name']
+                user_info.ssex = request.form['gender']
+                user_info.sage = request.form['age']
+                if request.form['password'] != "":
+                    user_info.pwd = request.form['password']
+                db.session.commit()
+            return "个人信息修改完毕"
+        elif request.form['type'] == 'courseselection':
+            to_select = next(filter(lambda x: x.cno == request.form['course'],selectable_course))
+            to_submit = SC(cno = request.form['course'],sno = sno,tno = to_select.tno,grade = 0)
+            db.session.add(to_submit)
+            db.session.commit()
+            return "选课成功"
+
+@app.route('/admin/<ano>', methods=['GET', 'POST'])
+def admin(ano):
+    student_list = db.session.query(Student,db.func.coalesce(db.func.sum(Course.ccredit),0)).\
+        join(SC,Student.sno == SC.sno, isouter=True).join(Course,SC.cno == Course.cno, isouter=True).group_by(Student.sno).all()
+
+    teacher_list = db.session.query(Teacher).all()
+    teacher_position_list = db.session.query(Teacher.tposition,db.func.avg(Teacher.tsalary),db.func.count(Teacher.tno)).\
+        group_by(Teacher.tposition).all()
+
+    course_list = db.session.query(Course,db.func.max(SC.grade),db.func.min(SC.grade),db.func.avg(SC.grade)).\
+        join(SC,Course.cno == SC.cno).group_by(Course.cno).all()
+
+    sc_list = db.session.query(SC).group_by(SC.cno).all()
+
+    if request.method == 'GET':
+        return render_template("admin.html",studentlist=student_list,
+                               teacherlist=teacher_list,
+                               salary=teacher_position_list,
+                               courselist=course_list,
+                               sclist=sc_list)
+
+    if request.method == 'POST':
+        if request.form['type'] == 'changestudent':
+            student = db.session.query(Student).get(request.form['sno'])
+            student.sname = request.form['sname']
+            student.sage = request.form['sage']
+            student.pwd = request.form['pwd']
+            student.ssex = request.form['ssex']
+            db.session.commit()
+            return "修改学生信息成功"
+        elif request.form['type'] == 'addstudent':
+            db.session.add(Student(sno = request.form['sno'],
+                           sname=request.form['sname'],
+                           sage = request.form['sage'],
+                           pwd = request.form['pwd'],
+                           ssex=request.form['ssex']
+            ))
+            db.session.commit()
+            return "添加学生成功"
+        elif request.form['type'] == 'deletestudent':
+            db.session.delete(Student.query.get(request.form['sno']))
+            db.session.commit()
+            return "学生已删除"
+
+        elif request.form['type'] == 'changeteacher':
+            teacher = db.session.query(Teacher).get(request.form['tno'])
+            teacher.tname = request.form['tname']
+            teacher.tposition = request.form['tposition']
+            teacher.pwd = request.form['pwd']
+            teacher.tsalary = request.form['tsalary']
+            db.session.commit()
+            return "修改教师信息成功"
+        elif request.form['type'] == 'addteacher':
+            db.session.add(Teacher(tno = request.form['tno'],
+                           tname=request.form['tname'],
+                           tposition = request.form['tposition'],
+                           pwd = request.form['pwd'],
+                           tsalary=request.form['tsalary']
+            ))
+            db.session.commit()
+            return "添加教师成功"
+        elif request.form['type'] == 'deleteteacher':
+            db.session.delete(Teacher.query.get(request.form['tno']))
+            db.session.commit()
+            return "教师已删除"
+
+        elif request.form['type'] == 'changesc':
+            sc = db.session.query(SC).filter_by(sno=request.form['sno'],cno=request.form['cno']).first()
+            sc.grade = request.form['grade']
+            db.session.commit()
+            return "成绩修改成功"
+        elif request.form['type'] == 'addsc':
+            db.session.add(SC(cno = request.form['cno'],
+                           sno=request.form['sno'],
+                           grade = request.form['grade']
+            ))
+            db.session.commit()
+            return "选课信息添加成功"
+        elif request.form['type'] == 'deletesc':
+            db.session.delete(Teacher.query().filter_by(sno=request.form['sno'],cno=request.form['cno']).first())
+            db.session.commit()
+            return "选课信息已删除"
+
+
+
+
+@app.errorhandler(404)
+def page_not_found(e):
+    return redirect('/login')
+
+
+with app.app_context():
+    db.engine.connect()
+
+
+if __name__ == '__main__':
+    app.run()
diff --git a/school system/templates/admin.html b/school system/templates/admin.html
new file mode 100644
index 0000000..1be0fcf
--- /dev/null
+++ b/school system/templates/admin.html	
@@ -0,0 +1,268 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>管理员系统</title>
+</head>
+<body>
+	<h2>数据库实验-管理员系统</h2>
+    <br>
+    <h3>学生信息修改</h3>
+    <table>
+        <thead>
+            <tr>
+                <th>学号</th>
+                <th>姓名</th>
+                <th>性别</th>
+                <th>年龄</th>
+                <th>密码</th>
+                <th>总学分</th>
+                <th>提交修改</th>
+                <th>删除学生</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for i in studentlist %}
+                <tr>
+                    <form action="" method="post">
+                    <th>
+                        {{ i[0].sno }}<input name="sno" type="hidden" value="{{ i[0].sno }}">
+                    </th>
+                    <th>
+                        <input name="sname" type="text" value="{{ i[0].sname }}">
+                    </th>
+                    <th>
+                        {% if i[0].ssex == '男' %}
+                        <select name="ssex">
+                            <option value="男" selected>男</option>
+                            <option value="女">女</option>
+                        </select>
+                        {% else %}
+                        <select name="ssex">
+                            <option value="男">男</option>
+                            <option value="女" selected>女</option>
+                        </select>
+                       {% endif %}
+                    </th>
+                    <th>
+                        <input name="sage" type="text" value="{{ i[0].sage }}">
+                    </th>
+                    <th>
+                        <input name="pwd" type="text" value="{{ i[0].pwd }}">
+                    </th>
+                    <th>
+                        {{ i[1] }}
+                    </th>
+                    <th>
+                        <button type="submit" name="type" value="changestudent">提交修改</button>
+                    </th>
+                    <th>
+                        <button type="submit" name="type" value="deletestudent">删除学生</button>
+                    </th>
+                    </form>
+                </tr>
+            {% endfor %}
+            <tr>
+                    <form action="" method="post">
+                    <input name="type" type="hidden" value="addstudent">
+                    <th>
+                        <input name="sno" type="text">
+                    </th>
+                    <th>
+                        <input name="sname" type="text">
+                    </th>
+                    <th>
+                        <select name="ssex">
+                            <option value="男">男</option>
+                            <option value="女">女</option>
+                        </select>
+                    </th>
+                    <th>
+                        <input name="sage" type="text">
+                    </th>
+                    <th>
+                        <input name="pwd" type="text">
+                    </th>
+                    <th>
+                        <button type="submit">添加学生</button>
+                    </th>
+                    </form>
+                </tr>
+        </tbody>
+    </table>
+    <br>
+
+    <h3>教师信息修改</h3>
+    <table>
+        <thead>
+            <tr>
+                <th>教师号</th>
+                <th>姓名</th>
+                <th>职称</th>
+                <th>工资</th>
+                <th>密码</th>
+                <th>提交修改</th>
+                <th>删除教师</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for i in teacherlist %}
+                <tr>
+                    <form action="" method="post">
+                    <th>
+                        {{ i.tno }}<input name="tno" type="hidden" value="{{ i.tno }}">
+                    </th>
+                    <th>
+                        <input name="tname" type="text" value="{{ i.tname }}">
+                    </th>
+                    <th>
+                        <input name="tposition" type="text" value="{{ i.tposition }}">
+                    </th>
+                    <th>
+                        <input name="tsalary" type="text" value="{{ i.tsalary }}">
+                    </th>
+                    <th>
+                        <input name="pwd" type="text" value="{{ i.pwd }}">
+                    </th>
+                    <th>
+                        <button type="submit" name="type" value="changeteacher">提交修改</button>
+                    </th>
+                    <th>
+                        <button type="submit" name="type" value="deleteteacher">删除教师</button>
+                    </th>
+                    </form>
+                </tr>
+            {% endfor %}
+            <tr>
+                    <form action="" method="post">
+                    <input name="type" type="hidden" value="addteacher">
+                    <th>
+                        <input name="tno" type="text">
+                    </th>
+                    <th>
+                        <input name="tname" type="text">
+                    </th>
+                    <th>
+                        <input name="tposition" type="text">
+                    </th>
+                    <th>
+                        <input name="tsalary" type="text">
+                    </th>
+                    <th>
+                        <input name="pwd" type="text">
+                    </th>
+                    <th>
+                        <button type="submit">添加教师</button>
+                    </th>
+                    </form>
+                </tr>
+        </tbody>
+    </table>
+    <br>
+
+    <h3>教师信息统计</h3>
+    <table>
+        <thead>
+            <tr>
+                <th>职称</th>
+                <th>平均工资</th>
+                <th>人数</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for i in salary %}
+                <tr>
+                    <th>
+                        {{ i[0] }}
+                    </th>
+                    <th>
+                        {{ i[1] }}
+                    </th>
+                    <th>
+                        {{ i[2] }}
+                    </th>
+                </tr>
+            {% endfor %}
+        </tbody>
+    </table>
+    <br>
+
+    <h3>课程信息统计</h3>
+    <table>
+        <thead>
+            <tr>
+                <th>课程号</th>
+                <th>课程名</th>
+                <th>最高成绩</th>
+                <th>最低成绩</th>
+                <th>平均成绩</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for i in courselist %}
+                <tr>
+                    <th>{{i[0].cno}}</th>
+                    <th>{{ i[0].cname }}</th>
+                    <th>{{i[1]}}</th>
+                    <th>{{i[2]}}</th>
+                    <th>{{i[3]}}</th>
+                </tr>
+            {% endfor %}
+        </tbody>
+    </table>a
+    <br>
+
+    <h3>选课及成绩统计</h3>
+    <table>
+        <thead>
+            <tr>
+                <th>课程号</th>
+                <th>学生号</th>
+                <th>成绩</th>
+                <th>修改</th>
+                <th>删除</th>
+            </tr>
+        </thead>
+        <tbody>
+        {% for i in sclist %}
+            <tr>
+                <form action="" method="post">
+                <th>
+                    <input name="cno" type="hidden" value="{{ i.cno }}">{{ i.cno }}
+                </th>
+                <th>
+                    <input name="sno" type="hidden" value="{{ i.sno }}">{{ i.sno }}
+                </th>
+                <th>
+                    <input name="grade" type="text" value="{{ i.grade }}">
+                </th>
+                <th>
+                    <button type="submit" name="type" value="changesc">提交修改</button>
+                </th>
+                <th>
+                    <button type="submit" name="type" value="deletesc">删除选课</button>
+                </th>
+                </form>
+            </tr>
+        {% endfor %}
+            <tr>
+                <form action="" method="post">
+                    <input name="type" type="hidden" value="addsc">
+                    <th>
+                        <input name="cno" type="text">
+                    </th>
+                    <th>
+                        <input name="sno" type="text">
+                    </th>
+                    <th>
+                        <input name="grade" type="text">
+                    </th>
+                    <th>
+                        <button type="submit">添加信息</button>
+                    </th>
+                </form>
+            </tr>
+        </tbody>
+    </table>
+</body>
+</html>
\ No newline at end of file
diff --git a/school system/templates/login.html b/school system/templates/login.html
new file mode 100644
index 0000000..5dc07b0
--- /dev/null
+++ b/school system/templates/login.html	
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title>数据库实验</title>
+    <meta charset="UTF-8">
+</head>
+<body>
+	<h2>数据库实验-学校管理系统</h2>
+	<form action="/login" method="post">
+        <label for="login-method">登录选项：</label>
+		<select id="login-method" name="login-method">
+		  <option value="student">学生登录</option>
+		  <option value="teacher">教师登录</option>
+		  <option value="admin">管理员登录</option>
+		</select><br><br>
+
+		<label for="account">账号：</label>
+		<input type="text" id="account" name="account"><br><br>
+
+		<label for="password">密码：</label>
+		<input type="password" id="password" name="password"><br><br>
+
+		<input type="submit" value="登录">
+	  </form>
+
+</body>
+</html>
\ No newline at end of file
diff --git a/school system/templates/student.html b/school system/templates/student.html
new file mode 100644
index 0000000..8d6d187
--- /dev/null
+++ b/school system/templates/student.html	
@@ -0,0 +1,94 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/html">
+<head>
+	<title>学生系统</title>
+    <meta charset="UTF-8">
+</head>
+<body>
+	<h2>数据库实验-学生系统</h2>
+    <br>
+    <h3>个人信息修改</h3>
+        <form action="" method="post">
+            <input type="hidden" name="type" value="changeinfo">
+            <label for="name">姓名：</label>
+            <input type="text" id="name" name="name" value="{{ username }}"><br>
+
+            {% if usergender == '男' %}
+                <input type="radio" name="gender" value="男" checked>男
+            {% else %}
+                <input type="radio" name="gender" value="男">男
+            {% endif %}
+
+            {% if usergender == '女' %}
+                <input type="radio" name="gender" value="女" checked>女
+            {% else %}
+                <input type="radio" name="gender" value="女">女
+            {% endif %}
+
+            <label for="age" >年龄：</label>
+            <input type="number" id="age" name="age" value="{{ userage }}"><br>
+
+            <label for="password">密码：</label>
+            <input type="password" id="password" name="password"><br>
+
+            <input type="submit" value="提交修改">
+        </form>
+    <br>
+
+    <h3>选课信息</h3>
+    <table>
+        <thead>
+            <tr>
+                <th>课程号</th>
+                <th>课程名</th>
+                <th>科任老师编号</th>
+                <th>学分</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for i in usercourse %}
+                <tr>
+                    <th>{{ i[1].cno }}</th>
+                    <th>{{ i[1].cname }}</th>
+                    <th>{{ i[1].tno }}</th>
+                    <th>{{ i[1].ccredit }}</th>
+                </tr>
+            {% endfor %}
+        </tbody>
+    </table>
+    <div>合计学分：{{ totalcredit }}</div>
+    <br>
+
+    <h3>选课</h3>
+    <table>
+        <thead>
+            <tr>
+                <th>课程号</th>
+                <th>课程名</th>
+                <th>科任老师编号</th>
+                <th>学分</th>
+                <th>选择</th>
+            </tr>
+        </thead>
+        <tbody>
+            {% for i in selectablecourse %}
+                <tr>
+                    <th>{{ i.cno }}</th>
+                    <th>{{ i.cname }}</th>
+                    <th>{{ i.tno }}</th>
+                    <th>{{ i.ccredit }}</th>
+                    <th>
+                        <form action="" method="POST">
+                            <input type="hidden" name="type" value="courseselection">
+                            <input type="hidden" name="course" value="{{ i.cno }}">
+                            <input type="submit" value="选课">
+                        </form>
+                    </th>
+                </tr>
+            {% endfor %}
+        </tbody>
+    </table>
+
+
+</body>
+</html>
\ No newline at end of file