首页
所有分类
TAGS
文字工具 EMOJI BIBLE
编程 Python

python3.6+django2.0开发一套学员管理系统

Posted in Python onMarch 03, 2018

1.在pycharm中新建project demo1 添加app01 点击create按钮完成新建

2.在demo项目目录下新建目录static，并在settings.py中追加代码：

STATICFILES_DIRS=(os.path.join(BASE_DIR, 'static'),)

3.在setting.py中添加模板路径：

TEMPLATES = [
 {
  'BACKEND': '...',
  'DIRS': [os.path.join(BASE_DIR, 'templates'),],
  'APP_DIRS': ...,
  'OPTIONS': {
   'context_processors': [
    ...
   ],
  },
 },
]

4.学员管理系统数据库设计：

在app01/model.py目录下建立 班级、老师、学生 、老师与班级关联表 四张表：

from django.db import models

# Create your models here.


class Classes(models.Model):
 '''
 班级表
 '''
 title=models.CharField(max_length=32)
 a=models.ManyToManyField('Teachers')


class Teachers(models.Model):
 '''
 老师表
 '''
 name=models.CharField(max_length=32)


class Students(models.Model):
 username=models.CharField(max_length=32)
 age=models.IntegerField()
 gender=models.BooleanField()
 cs=models.ForeignKey(Classes,on_delete=models.CASCADE)

在终端Terminal 项目目录下执行数据表更新命令：

python manage.py makemigrations
python manage.py migrate

至此生成了四张数据表，可以在pycharm中，点开右上角的Database面板，然后将项目中templates目录下边的db.sqlite3鼠标拖拽到Database面板下，对新创建的数据表进行查看。

5.学员管理系统之班级管理：

为了方便分别操作班级、老师、学生相关的业务，将app01目录下的views.py 删掉，在app01目录下新建目录views，并在views目录下 新建classes.py teachers.py students.py。

1.在classes.py 中写 get_classes add_classes del_classes edit_classes四个函数，完成对 班级数据 的增删改查：

from django.shortcuts import render,redirect
from app01 import models


def get_classes(request):
 cls_list = models.Classes.objects.all()
 return render(request,'get_classes.html',{'cls_list':cls_list})

def add_classes(request):
 if request.method=='GET':
  return render(request,'add_classes.html')
 elif request.method=='POST':
  title=request.POST.get('title','')
  models.Classes.objects.create(title=title)
  return redirect('/classes.html')

def del_classes(request):
 nid=request.GET.get('nid','')
 models.Classes.objects.filter(id=nid).delete()
 return redirect('/classes.html')

def edit_classes(request):
 if request.method=="GET":
  nid = request.GET.get('nid', '')
  obj=models.Classes.objects.get(id=nid)
  return render(request,'edit_classes.html',{'obj':obj})
 elif request.method=="POST":
  nid=request.POST.get('nid','')
  title=request.POST.get('xxoo','')
  models.Classes.objects.filter(id=nid).update(title=title)
  return redirect('/classes.html')

2.在urls.py 中配置url路由：

from django.contrib import admin
from django.urls import path
from app01.views import classes,students,teachers

urlpatterns = [
 path('admin/', admin.site.urls),
 path('classes.html', classes.get_classes),
 path('add_classes.html', classes.add_classes),
 path('del_classes.html', classes.del_classes),
 path('edit_classes.html', classes.edit_classes),
 # path('teachers.html', teachers.get_teachers),
 # path('students.html', students.get_studernts),

]

3.在template目录下建立所需的html页面文件：

get_classes.html

DOCTYPE html>
<html lang="en">
<head>
 <style>
  tr td{ border:1px solid #000;text-align:center;}
 </style>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>

<div>
 <table>
  <thead>
   <tr>
    <th>ID</th> <th>名称</th> <th>操作</th>
   </tr>
  </thead>
  <tbody>
   {% for row in cls_list %}
   <tr>
    <td>{{ row.id }}</td>
    <td>{{ row.title }}</td>
    <td><a href="/del_classes.html?nid={{ row.id }}" rel="external nofollow" rel="external nofollow" >删除</a>
     |<a href="/edit_classes.html?nid={{ row.id }}" rel="external nofollow" rel="external nofollow" >编辑</a>
    </td>
   </tr>
   {% endfor %}
  </tbody>
 </table>
</div>

<div><a href="/add_classes.html" rel="external nofollow" rel="external nofollow" >添加</a> </div>
</body>
</html>

add_classes.html

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>
<form action="/add_classes.html" method="post">
 {% csrf_token %}
 <input type="text" name="title">
 <input type="submit" value="提交">
</form>
</body>
</html>

edit_classes.html

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>
<form method="post" action="/edit_classes.html">
 {% csrf_token %}
 <input type="hidden" name="nid" value="{{ obj.id }}">
 <input type="text" name="xxoo" value="{{ obj.title }}">
 <input type="submit" value="提交">
</form>

</body>
</html>

6.学员管理系统之学员管理： 1.在students.py 中写 get_students add_students del_students edit_students 四个函数，完成对 学生数据 的增删改查：

from django.shortcuts import render,redirect
from app01 import models


def get_students(request):
 stu_list=models.Students.objects.all()
 return render(request,'get_students.html',{'stu_list':stu_list})


def add_students(request):
 if request.method=='GET':
  cs_list=models.Classes.objects.all()
  return render(request,'add_students.html',{'cs_list':cs_list})
 elif request.method=='POST':
  u=request.POST.get('username','')
  a=request.POST.get('age','')
  g=request.POST.get('gender','')
  c=request.POST.get('cs','')
  models.Students.objects.create(
   username=u,
   age=a,
   gender=g,
   cs_id=c
  )
  return redirect('/students.html')


def del_students(request):
 nid = request.GET.get('nid', '')
 models.Students.objects.filter(id=nid).delete()
 return redirect('/students.html')


def edit_students(request):
 if request.method=="GET":
  nid = request.GET.get('nid', '')
  obj=models.Students.objects.get(id=nid)
  cs_list = models.Classes.objects.all()
  return render(request,'edit_students.html',{'obj':obj,'cs_list':cs_list})
 elif request.method=="POST":
  nid=request.POST.get('nid','')
  u = request.POST.get('username', '')
  a = request.POST.get('age', '')
  g = request.POST.get('gender', '')
  c = request.POST.get('cs', '')
  models.Students.objects.filter(id=nid).update(
   username=u,
   age=a,
   gender=g,
   cs_id=c)
  return redirect('/students.html')

2.在urls.py 中配置url路由：　

from django.contrib import admin
from django.urls import path
from app01.views import classes,students,teachers

urlpatterns = [
 path('admin/', admin.site.urls),

 path('classes.html', classes.get_classes),
 path('add_classes.html', classes.add_classes),
 path('del_classes.html', classes.del_classes),
 path('edit_classes.html', classes.edit_classes),

 path('students.html', students.get_students),
 path('add_students.html', students.add_students),
 path('del_students.html', students.del_students),
 path('edit_students.html', students.edit_students),
 # path('teachers.html', teachers.get_teachers),
]

3.在template目录下建立所需的html页面文件：

get_students.html

<!DOCTYPE html>
<html lang="en">
<head>
 <style>
  tr td{ border:1px solid #000;text-align:center;}
 </style>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>

<div>
 <table>
  <thead>
   <tr>
    <th>ID</th>
    <th>姓名</th>
    <th>年龄</th>
    <th>性别</th>
    <th>班级</th>
    <th>操作</th>
   </tr>
  </thead>
  <tbody>
   {% for row in stu_list %}
   <tr>
    <td>{{ row.id }}</td>
    <td>{{ row.username }}</td>
    <td>{{ row.age }}</td>
    <td>{{ row.gender }}</td>
    <td>{{ row.cs.title }}</td>
    <td><a href="/del_students.html?nid={{ row.id }}" rel="external nofollow" rel="external nofollow" >删除</a>
     |<a href="/edit_students.html?nid={{ row.id }}" rel="external nofollow" rel="external nofollow" >编辑</a>
    </td>
   </tr>
   {% endfor %}
  </tbody>
 </table>
</div>

<div><a href="/add_students.html" rel="external nofollow" rel="external nofollow" >添加</a> </div>
</body>
</html>

add_students

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>
<h1>添加用户</h1>
<form method="post" action="/add_students.html">
 {% csrf_token %}
 <p><input type="text" name="username" placeholder="用户名"></p>
 <p><input type="text" name="age" placeholder="年龄"></p>
 <p>
  男<input type="radio" name="gender" value="1">
  女<input type="radio" name="gender" value="0">
 </p>
 <p>
  <select name="cs">
   {% for row in cs_list %}
   <option value="{{ row.id }}">{{ row.title }}</option>
   {% endfor %}
  </select>
 </p>
 <p><input type="submit" value="提交"></p>
</form>
</body>
</html>

edit_students.html

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>
<h1>编辑用户</h1>
<form method="post" action="/edit_students.html">
 {% csrf_token %}
 <input type="hidden" name="nid" value="{{ obj.id }}">
 <p><input type="text" name="username" placeholder="用户名"></p>
 <p><input type="text" name="age" placeholder="年龄"></p>
 <p>
  男<input type="radio" name="gender" value="1">
  女<input type="radio" name="gender" value="0">
 </p>
 <p>
  <select name="cs">
   {% for row in cs_list %}
   <option value="{{ row.id }}">{{ row.title }}</option>
   {% endfor %}
  </select>
 </p>
 <p><input type="submit" value="提交"></p>
</form>
</body>
</html>

7.学员管理系统之给班级分配老师：

在teachers数据表中增加一些老师信息：

在pycharm右上角的Database打开面板，然后将template目录下边的db.splte3鼠标拖入到Database面板中，打开db==》app01_teachers表

点击“+”，然后填入老师信息，然后点击有“DB”标志的向上箭头，进行数据保存。

1.在classes.py中增加set_teachers函数

def set_teachers(request):
 if request.method=='GET':
  nid=request.GET.get('nid','')
  cls_obj=models.Classes.objects.get(id=nid)
  cls_teacher_list=cls_obj.a.all()
  all_teacher_list=models.Teachers.objects.all()
  return render(request,'set_teachers.html',{
   'cls_teacher_list':cls_teacher_list,
   'all_teacher_list':all_teacher_list,
   'nid':nid,
  })
 elif request.method=='POST':
  nid = request.POST.get('nid', '')
  ids_str=request.POST.getlist('teacher_id','')
  ids_int=[]
  for i in ids_str:
   i=int(i)
   ids_int.append(i)
  obj=models.Classes.objects.get(id=nid)
  obj.a.set(ids_int)
  return redirect('/classes.html')

2.在urls.py 中配置url路由：　

from django.contrib import admin
from django.urls import path
from app01.views import classes,students,teachers

urlpatterns = [
 path('admin/', admin.site.urls),

 path('classes.html', classes.get_classes),
 path('add_classes.html', classes.add_classes),
 path('del_classes.html', classes.del_classes),
 path('edit_classes.html', classes.edit_classes),

 path('students.html', students.get_students),
 path('add_students.html', students.add_students),
 path('del_students.html', students.del_students),
 path('edit_students.html', students.edit_students),

 path('set_teachers.html', classes.set_teachers),
]
　

3.在template目录下建立所需的html页面文件：

set_teachers.html

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>
<form action="/set_teachers.html" method="post">
 <input type="hidden" name="nid" value="{{ nid }}">
 {% csrf_token %}
 <select multiple size="10" name="teacher_id">

  {% for item in all_teacher_list %}
   {% if item in cls_teacher_list %}
   <option value="{{ item.id }}" selected="selected">{{ item.name }}</option>
   {% else %}
   <option value="{{ item.id }}">{{ item.name }}</option>
   {% endif %}
  {% endfor %}
 </select>
 <input type="submit" value="提交">
</form>
</body>
</html>

对get_classes.html进行增添修改为：

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>

<div>
 <table>
  <thead>
   <tr>
    <th>ID</th> <th>名称</th> <th>任课老师</th> <th>操作</th>
   </tr>
  </thead>
  <tbody>
   {% for row in cls_list %}
   <tr>
    <td>{{ row.id }}</td>
    <td>{{ row.title }}</td>
    <td>
     {% for item in row.a.all %}
      <span>{{ item.name }}</span>
      {% endfor %}
    </td>
    <td><a href="/del_classes.html?nid={{ row.id }}" rel="external nofollow" rel="external nofollow" >删除</a>
     |<a href="/edit_classes.html?nid={{ row.id }}" rel="external nofollow" rel="external nofollow" >编辑</a>
     |<a href="/set_teachers.html?nid={{ row.id }}" rel="external nofollow" >分配老师</a>
    </td>
   </tr>
   {% endfor %}
  </tbody>
 </table>
</div>

<div><a href="/add_classes.html" rel="external nofollow" rel="external nofollow" >添加</a> </div>
</body>
</html>

8.初识Ajax

Ajax是异步传输方式，偷偷的向后台发请求，不引起页面刷新，下面通过一个小例子来认识Ajax这种数据传输方式。

首先下载jQuery导入项目下的static目录下

1.在app01/Views目录下新建ajax.py

from django.shortcuts import render,redirect,HttpResponse


def ajax1(request):
 return render(request,'ajax1.html')


def ajax2(request):
 u=request.GET.get('username')
 p=request.GET.get('password')
 return HttpResponse('我愿意')

2.在urls.py中配置相关路由

from django.contrib import admin
from django.urls import path
from app01.views import classes,students,teachers,ajax

urlpatterns = [
 path('admin/', admin.site.urls),

 path('classes.html', classes.get_classes),
 path('add_classes.html', classes.add_classes),
 path('del_classes.html', classes.del_classes),
 path('edit_classes.html', classes.edit_classes),

 path('students.html', students.get_students),
 path('add_students.html', students.add_students),
 path('del_students.html', students.del_students),
 path('edit_students.html', students.edit_students),

 path('set_teachers.html', classes.set_teachers),

 path('ajax1.html', ajax.ajax1),
 path('ajax2.html', ajax.ajax2),
]

3.在template目录下新建ajax1.html

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
 <style>
  .btn{
   display: inline-block;
   padding: 5px 15px;
   background-color: coral;
   color: white;
   cursor: pointer;
  }
 </style>
</head>
<body>
<div>
 <input placeholder="用户名" type="text">
 <input placeholder="密码" type="password">
 <div class="btn">提交</div>
</div>
<script src="/static/jquery-3.3.1.js"></script>
<script>
 function submitForm() {
  var u=$('#username').val();
  var p=$('#password').val();
  $.ajax({
   url:'ajax2.html',
   type:'GET',
   data:{username:u,password:p},
   success:function (arg) {
    //回调函数 arg是服务器返回的字符串
    console.log(arg)
   }

  })

 }
</script>
</body>
</html>

9.学员管理系统之Ajax删除学员： 1.在ajax.py中增加ajax4函数

from app01 import models
def ajax4(request):
 nid=request.GET.get('nid')
 msg='成功'
 try:
  models.Students.objects.get(id=nid).delete()
 except Exception as e:
  msg=str(e)
 return HttpResponse(msg)

2.在urls.py中配置相关路由

from django.contrib import admin
from django.urls import path
from app01.views import classes,students,teachers,ajax

urlpatterns = [
 path('admin/', admin.site.urls),

 path('classes.html', classes.get_classes),
 path('add_classes.html', classes.add_classes),
 path('del_classes.html', classes.del_classes),
 path('edit_classes.html', classes.edit_classes),

 path('students.html', students.get_students),
 path('add_students.html', students.add_students),
 path('del_students.html', students.del_students),
 path('edit_students.html', students.edit_students),

 path('set_teachers.html', classes.set_teachers),

 path('ajax1.html', ajax.ajax1),
 path('ajax2.html', ajax.ajax2),
 path('ajax4.html', ajax.ajax4),
]

3.对get_students.html进行添加修改：

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
</head>
<body>

<div>
 <table>
  <thead>
   <tr>
    <th>ID</th>
    <th>姓名</th>
    <th>年龄</th>
    <th>性别</th>
    <th>班级</th>
    <th>操作</th>
   </tr>
  </thead>
  <tbody>
   {% for row in stu_list %}
   <tr nid="{{ row.id }}">
    <td>{{ row.id }}</td>
    <td>{{ row.username }}</td>
    <td>{{ row.age }}</td>
    <td>{{ row.gender }}</td>
    <td>{{ row.cs.title }}</td>
    <td><a href="/del_students.html?nid={{ row.id }}" rel="external nofollow" rel="external nofollow" >删除</a>
     |<a href="#" rel="external nofollow" >Ajax删除</a>
     |<a href="/edit_students.html?nid={{ row.id }}" rel="external nofollow" rel="external nofollow" >编辑</a>
    </td>
   </tr>
   {% endfor %}
  </tbody>
 </table>
</div>

<div><a href="/add_students.html" rel="external nofollow" rel="external nofollow" >添加</a> </div>
</body>
<script src="/static/jquery-3.3.1.js"></script>
<script>
 function removeStudent(ths) {
  var nid=$(ths).parent().parent().attr('nid');
  $.ajax({
   url:'/ajax4.html',
   type:'GET',
   data:{nid:nid},
   success:function (arg) {
    if (arg=='成功'){
     window.location.reload();
    }else{
     alert(arg);
    }
   }
  })
 }
</script>
</html>

python3.6+django2.0开发一套学员管理系统

- Author -

雪落忆海

声明：登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。

Python 相关文章推荐
对Python 文件夹遍历和文件查找的实例讲解
Apr 26 Python
python range()函数取反序遍历sequence的方法
Jun 25 Python
Python 查看list中是否含有某元素的方法
Jun 27 Python
详解如何用django实现redirect的几种方法总结
Nov 22 Python
python之信息加密题目详解
Jun 26 Python
python使用requests.session模拟登录
Aug 09 Python
python函数声明和调用定义及原理详解
Dec 02 Python
python GUI库图形界面开发之PyQt5控件数据拖曳Drag与Drop详细使用方法与实例
Feb 27 Python
ipython jupyter notebook中显示图像和数学公式实例
Apr 15 Python
python单元测试框架pytest的使用示例
Oct 07 Python
Python按顺序遍历并读取文件夹中文件
Apr 29 Python
Python docx库删除复制paragraph及行高设置图片插入示例
Jul 23 Python
python爬虫面试宝典(常见问题)
Mar 02 #Python
Python基于Flask框架配置依赖包信息的项目迁移部署
Mar 02 #Python
谈谈python中GUI的选择
Mar 01 #Python
纯python实现机器学习之kNN算法示例
Mar 01 #Python
用python与文件进行交互的方法
Mar 01 #Python
python爬虫爬取快手视频多线程下载功能
Feb 28 #Python
python爬取m3u8连接的视频
Feb 28 #Python
mounted(1) TableField(1) create(1) el-table(1) 日志格式分析(1) Windows server 2012(17) nginx(76) 子查询(1) Mybatis-Plus(3) 组策略(1)
You might like
PHP中改变图片的尺寸大小的代码
2011/07/17 PHP
解析php如何将日志写进syslog
2013/06/28 PHP
PHP jQuery表单,带验证具体实现方法
2014/02/15 PHP
简单分析ucenter 会员同步登录通信原理
2014/08/25 PHP
php模拟用户自动在qq空间发表文章的方法
2015/01/07 PHP
PHP动态生成指定大小随机图片的方法
2016/03/25 PHP
PHP简单实现欧拉函数Euler功能示例
2017/11/06 PHP
Laravel框架实现定时发布任务的方法
2018/08/16 PHP
一款JavaScript压缩工具：X2JSCompactor
2007/06/13 Javascript
JavaScript函数、方法、对象代码
2008/10/29 Javascript
在IE 浏览器中使用 jquery的fadeIn() 效果 英文字符字体加粗
2011/06/02 Javascript
js控制CSS样式属性语法对照表
2012/12/11 Javascript
全面兼容的javascript时间格式化函数(比较实用)
2014/05/14 Javascript
jquery+php实现搜索框自动提示
2014/11/28 Javascript
js插件YprogressBar实现漂亮的进度条效果
2015/04/20 Javascript
ECMAScript6中Map/WeakMap详解
2015/06/12 Javascript
easyui datagrid 大数据加载效率慢,优化解决方法(推荐)
2016/11/09 Javascript
jQuery+ajax实现局部刷新的两种方法
2017/06/08 jQuery
ionic App问题总结系列之ionic点击系统返回键退出App
2017/08/19 Javascript
详解auto-vue-file:一个自动创建vue组件的包
2019/04/26 Javascript
JS深入学习之数组对象排序操作示例
2020/05/01 Javascript
Antd-vue Table组件添加Click事件,实现点击某行数据教程
2020/11/17 Javascript
js实现菜单跳转效果
2020/12/11 Javascript
JavaScript实现跟随鼠标移动的盒子
2021/01/28 Javascript
[46:55]Ti4 冒泡赛第二轮 LGD vs C9
2014/07/14 DOTA
python批量添加zabbix Screens的两个脚本分享
2017/01/16 Python
Python面向对象之类和实例用法分析
2019/06/08 Python
Python编程快速上手——疯狂填词程序实现方法分析
2020/02/29 Python
Python实现自动整理文件的脚本
2020/12/17 Python
挪威太阳镜和眼镜网上商城：SmartBuyGlasses挪威
2016/08/20 全球购物
Bibloo罗马尼亚网站：女装、男装、童装及鞋子和配饰
2019/07/20 全球购物
数据库的约束含义
2012/09/09 面试题
请假条标准格式规范
2014/04/10 职场文书
给老师的感谢信
2015/01/20 职场文书
罚站检讨书
2015/01/29 职场文书
第一节英语课开场白
2015/06/01 职场文书