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数据库表的增删改查学生信息管理

时间:2018-08-07 20:27:28      阅读:201      评论:0      收藏:0      [点我收藏+]

标签:form   csrf   table   val   max   nbsp   edit   color   cut   

使用post方法,csrf必须注释掉

MIDDLEWARE = [
    django.middleware.security.SecurityMiddleware,
    django.contrib.sessions.middleware.SessionMiddleware,
    django.middleware.common.CommonMiddleware,
    #‘django.middleware.csrf.CsrfViewMiddleware‘,
    django.contrib.auth.middleware.AuthenticationMiddleware,
    django.contrib.messages.middleware.MessageMiddleware,
    django.middleware.clickjacking.XFrameOptionsMiddleware,
]

 

models

from django.db import models

# Create your models here.
class Classes(models.Model):#班级表
    title=models.CharField(max_length=32)
    m=models.ManyToManyField(Teacheres)#加上引号,全执行完后才来执行,表的多对多

class Teacheres(models.Model):#教师表
    name=models.CharField(max_length=32)

class Student(models.Model):
    username=models.CharField(max_length=32)
    age=models.IntegerField()
    #gender=models.BooleanField()布尔值
    gender = models.NullBooleanField()#可以为空的布尔值
    cs=models.ForeignKey(Classes)#这个classes不用加引号,因为在上面,顺序执行

urls,^这个必须加,记住

from django.conf.urls import url
from django.contrib import admin
from app.views import classes
urlpatterns = [
    url(r^admin/, admin.site.urls),
    url(r^classes.html$,classes.get_classes),#不加^访问点击页面没反应
    url(r^add_classes.html$,classes.add_classes),
    url(r^del_classes.html$, classes.del_classes),
    url(r^edit_classes.html$,classes.edit_classes),

]

views.py删除,新建文件夹,views里面建classes.py文件,内容如下

from django.shortcuts import render
from django.shortcuts import redirect
from app 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:
        title1=request.POST.get("title")
        models.Classes.objects.create(title=title1)
        return redirect(/classes.html)
         #url路径不是html文件

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

get_classes.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div><a href="/add_classes.html">添加</a></div>
<div> <table border="1">
    <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 }}">删除</a>
            |
        <a href="edit_classes.html?nid={{ row.id }}">修改</a>
        </td>
        </tr>
    {% endfor %}
    </tbody>
</table></div>
</body>
</html>

add_class.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 %}<!--提交数据-->
    <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 action="edit_classes.html?nid={{ obj.id }}"method="POST">
    {% csrf_token %}
<input type="text"name="abc"value="{{ obj.title }}">
<input type="submit"value="提交"></form>
</body>
</html>

 

数据库表的增删改查学生信息管理

标签:form   csrf   table   val   max   nbsp   edit   color   cut   

原文地址:https://www.cnblogs.com/wfl9310/p/9438884.html

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