数据库表的增删改查学生信息管理
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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>
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