1-Django开端--学生管理系统

项目结构

前端页面:

add_data.html

class_data.html

index.html

apps.py

models.py

views.py

settings,py

urls.py

...实现简略的身架...

项目结构

前端页面:

add_data.html

--添加数据.

{% extends 'index/index.html' %}


{% block content %}
<div class="container">
        <form method="post">
            {% csrf_token %}
             <div class="form-group">
                <label for="exampleInputEmail1">添加班级</label>
                <input type="text" class="form-control" id="exampleInputEmail1" name="grade">
                 <button type="submit" class="btn btn-success">提交</button>
            </div>
        </form>


</div>
{% endblock %}

class_data.html

{% extends 'index/index.html' %}

{% block css %}
    <style>
        h1 {
            color: red;
        }
    </style>
{% endblock %}


{% block content %}

    <div class="container">

        {# 班级表 #}
        <div class="col-xs-3">
            <div style="margin-bottom: 10px">
                <button class="btn btn-success"><a href="/add/data/">添加信息</a></button>
            </div>
            <div class="panel panel-warning">
                <div class="panel-heading">
                    <h3 class="panel-title">班级表</h3>
                </div>
                <div class="panel-body">
                    <table class="table">
                        <thead>
                        <tr>
                            <th>id</th>
                            <th>班级</th>
                            <th>操作</th>
                        </tr>
                        </thead>
                        <tbody>
                        {% for data in data_list %}
                            <tr>
                            <th>{{ data.id }}</th>
                            <td>{{ data.grade }}</td>
                            <td>
                                <a href="#">修改</a>
                                <a href="#">删除</a>
                            </td>

                        </tr>
                        {% endfor %}
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
        {# 学员表 #}
        <div class="col-xs-9"></div>

    </div>

{% endblock %}


{% block js %}

{% endblock %}

index.html

{% load static %}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
    <link rel="stylesheet" href="{% static 'css/bootstrap.css' %}">
    {% block css %}
    {% endblock %}
    <style>
        #threeD{
		   font-size:20px; /*设置字体大小*/
		   font-weight:800; /*设置字体粗细*/
		   text-shadow:1px 0px #5c0099, 1px 2px #006615, 3px 1px #009916,
		            2px 3px #006615, 4px 2px #990054, 4px 4px #006615,
		            5px 3px #009916, 5px 5px #006615, 7px 4px #009916,
		            6px 6px #006615, 8px 5px #009975, 7px 7px #006615,
		            9px 6px #009916, 9px 8px #006615, 11px 7px #009916/*设置文字阴影*/
		}

    </style>
</head>
<body>
{#水平导航栏#}
<div class="navbar navbar-default">
    <div class="container">
        <!-- Brand and toggle get grouped for better mobile display -->
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                    data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a id="threeD" class="navbar-brand" href="/">卡塞尔学院</a>
        </div>

        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
                <li><a href="/class/data/">学生信息</a></li>
                <li class="dropdown">
                    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                       aria-expanded="false">校园风光 <span class="caret"></span></a>
                    <ul class="dropdown-menu">
                        <li><a href="#">Action</a></li>
                        <li><a href="#">Another action</a></li>
                        <li><a href="#">Something else here</a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="#">Separated link</a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="#">One more separated link</a></li>
                    </ul>
                </li>
            </ul>

            <ul class="nav navbar-nav navbar-right">
                {# <li><a href="#">Link</a></li>#}
                <li class="dropdown">
                    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                       aria-expanded="false">Sakura <span class="caret"></span></a>
                    <ul class="dropdown-menu">
                        <li><a href="#">Action</a></li>
                        <li><a href="#">Another action</a></li>
                        <li><a href="#">Something else here</a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="#">退出登录</a></li>
                    </ul>
                </li>
            </ul>
        </div><!-- /.navbar-collapse -->
    </div><!-- /.container-fluid -->
</div>


{% block content %}
{% endblock %}


<script src="{% static 'js/jquery-3.7.1.js' %}"></script>
<script src="{% static 'js/bootstrap.js' %}"></script>
{% block js %}
{% endblock %}
</body>
</html>

apps.py

from django.apps import AppConfig


class DemoOneConfig(AppConfig):
    default_auto_field = 'django.db.models.BigAutoField'
    name = 'demo_one'

--注册的app.

models.py

from django.db import models


# Create your models here.

class Grade(models.Model):
    grade = models.CharField(verbose_name="年级班级", max_length=12)
    # class_ = models.CharField(verbose_name="班级", max_length=12)


class Student(models.Model):
    name = models.CharField(verbose_name="姓名", max_length=64)
    age = models.IntegerField(verbose_name="年龄")
    gender_choice = (
        (1, "男"),
        (2, "女")
    )
    gender = models.SmallIntegerField(verbose_name="性别", choices=gender_choice)
    tel = models.IntegerField(verbose_name="电话")
    stu_id = models.IntegerField(verbose_name="学号")
    # 外键约束
    stu_grade = models.ForeignKey(to="Grade", to_field="id", null=True, blank=True, on_delete=models.SET_NULL)

--数据库的字段.

views.py

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


# Create your views here.
def index(request):
    return render(request, "index/index.html")


# 展示班级以及学员
def class_data(request):
    data_list = models.Grade.objects.all()
    content = {
        "data_list": data_list
    }
    return render(request, "class_data/class_data.html", content)


def add_data(request):
    if request.method == "GET":
        return render(request, "class_data/add_data.html")

    grade = request.POST.get("grade")
    models.Grade.objects.create(grade=grade)
    return redirect("/class/data/")

--app的视图函数.

settings,py

urls.py

--路由映射

注册/配置等不会的看前面的文章~

笔记:

1、Django项目开端

jquery之家：http://www.htmleaf.com/

1.1 班级学生表

班级表

年级班级
一年级一班
二年级一班
学生表

姓名年龄性别电话学号年级班级
张三 ..
李四 ..
王五 ..

表创建

学生表关联班级表
    班级表删除信息
        1、学生跟着删除     CASCADE
        2、学生班级信息置空 SET_NULL
    外键约束
        to:当前字段关联的表
        to_field:根据主键关联
        on_delete：删除班级后，当前字段是删除(CASCADE)还是置空(SET_NULL)
        stu_grade = models.ForeignKey(to="Grade", to_field="id", on_delete=models.SET_NULL)
性别
    1：男
    2：女

from django.db import models


# Create your models here.

class Grade(models.Model):
    grade = models.CharField(verbose_name="年级班级", max_length=12)
    # class_ = models.CharField(verbose_name="班级", max_length=12)


class Student(models.Model):
    name = models.CharField(verbose_name="姓名", max_length=64)
    age = models.IntegerField(verbose_name="年龄")
    gender_choice = (
        (1, "男"),
        (2, "女")
    )
    gender = models.SmallIntegerField(verbose_name="性别", choices=gender_choice)
    tel = models.IntegerField(verbose_name="电话")
    stu_id = models.IntegerField(verbose_name="学号")
    # 外键约束
    stu_grade = models.ForeignKey(to="Grade", to_field="id", null=True, blank=True, on_delete=models.SET_NULL)

1.2 模板继承

模板：index.html

{% load static %}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
    <link rel="stylesheet" href="{% static 'css/bootstrap.css' %}">
    <style>
        #threeD{
           font-size:20px; /*设置字体大小*/
           font-weight:800; /*设置字体粗细*/
           text-shadow:1px 0px #5c0099, 1px 2px #006615, 3px 1px #009916,
                    2px 3px #006615, 4px 2px #990054, 4px 4px #006615,
                    5px 3px #009916, 5px 5px #006615, 7px 4px #009916,
                    6px 6px #006615, 8px 5px #009975, 7px 7px #006615,
                    9px 6px #009916, 9px 8px #006615, 11px 7px #009916/*设置文字阴影*/
        }

    </style>
</head>
<body>
{#水平导航栏#}
<div class="navbar navbar-default">
    <div class="container">
        <!-- Brand and toggle get grouped for better mobile display -->
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                    data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a id="threeD" class="navbar-brand" href="/"卡塞尔学院</a>
        </div>

        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
                <li><a href="#">学生信息</a></li>
                <li class="dropdown">
                    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                       aria-expanded="false">校园风光 <span class="caret"></span></a>
                    <ul class="dropdown-menu">
                        <li><a href="#">Action</a></li>
                        <li><a href="#">Another action</a></li>
                        <li><a href="#">Something else here</a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="#">Separated link</a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="#">One more separated link</a></li>
                    </ul>
                </li>
            </ul>

            <ul class="nav navbar-nav navbar-right">
                {# <li><a href="#">Link</a></li>#}
                <li class="dropdown">
                    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                       aria-expanded="false">Sakura <span class="caret"></span></a>
                    <ul class="dropdown-menu">
                        <li><a href="#">Action</a></li>
                        <li><a href="#">Another action</a></li>
                        <li><a href="#">Something else here</a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="#">退出登录</a></li>
                    </ul>
                </li>
            </ul>
        </div><!-- /.navbar-collapse -->
    </div><!-- /.container-fluid -->
</div>


<script src="{% static 'js/jquery-3.7.1.js' %}"></script>
<script src="{% static 'js/bootstrap.js' %}"></script>

</body>
</html>

继承语法

{% extends 'index/index.html' %}

模板当中占位
{% block content %} 
{% endblock %}

其他文件当中
{% block content %} 
    新的内容
{% endblock %}

class_data.html

{% extends 'index/index.html' %}

添加新的css
{% block css %}
    <style>
        h1 {
            color: red;
        }
    </style>
{% endblock %}

添加内容
{% block content %}
    <div class="container">
        <div class="panel panel-warning">
            <div class="panel-heading">
                <h3 class="panel-title">班级表</h3>
            </div>
            <div class="panel-body">
                <table class="table">
                    <caption>Optional table caption.</caption>
                    <thead>
                    <tr>
                        <th>#</th>
                        <th>First Name</th>
                        <th>Last Name</th>
                        <th>Username</th>
                    </tr>
                    </thead>
                    <tbody>
                    <tr>
                        <th scope="row">1</th>
                        <td>Mark</td>
                        <td>Otto</td>
                        <td>@mdo</td>
                    </tr>
                    <tr>
                        <th scope="row">2</th>
                        <td>Jacob</td>
                        <td>Thornton</td>
                        <td>@fat</td>
                    </tr>
                    <tr>
                        <th scope="row">3</th>
                        <td>Larry</td>
                        <td>the Bird</td>
                        <td>@twitter</td>
                    </tr>
                    </tbody>
                </table>
            </div>
        </div>
    </div>

{% endblock %}

添加新的js代码
{% block js %}

{% endblock %}

2、学员班级

2.1 学员班级展示

views.py

def class_data(request):
    data_list = models.Grade.objects.all()
    content = {
        "data_list": data_list
    }
    return render(request, "class_data/class_data.html",content)

2.2 班级信息添加

views.py

def add_data(request):
    if request.method == "GET":
        return render(request, "class_data/add_data.html")

    grade = request.POST.get("grade")
    models.Grade.objects.create(grade=grade)
    return redirect("/class/data/")