一、URL添加
1 from django.contrib import admin 2 from django.urls import path,re_path 3 from app01 import views 4 5 6 urlpatterns = [ 7 path('admin/', admin.site.urls), 8 path('users/', views.users), 9 path('add_user/', views.add_user), 10 re_path('edit_user-(d+)/',views.edit_user), 11 ]
二、views.py操作
1 from django.shortcuts import render,redirect 2 3 4 # Create your views here. 5 6 from app01.formm import FormUser 7 from app01 import models 8 def users(request): 9 user_list=models.UserInfo.objects.all() 10 return render(request,'users.html',{'user_list':user_list}) 11 12 13 def add_user(request): 14 if request.method=='GET': 15 obj=FormUser() 16 return render(request,'add_user.html',{'obj':obj}) 17 else: 18 obj=FormUser(request.POST) 19 if obj.is_valid(): 20 print(obj.cleaned_data) 21 22 #1.加载到数据库中 如果Form类中的变量username,email和Models中字段不一样采用方法1 23 ''' class FormUser(forms.Form): 24 user=fields.CharField(max_length=16,min_length=6,required=True) 25 emai=fields.EmailField(required=True,max_length=32) 26 ''' 27 ''' 28 class UserInfo(models.Model): 29 username=models.CharField(max_length=32) 30 email=models.EmailField(max_length=32) 31 向数据库中添加数据用如下方法： 32 33 models.UserInfo.objects.create( 34 username=obj.cleaned_data['user'], 35 email=obj.cleaned_data['emai']) 36 37 ''' 38 #2.如果Form类中的变量username,email和Models中字段一样 都是username,email采用方法2 39 ''' class FormUser(forms.Form): 40 username=fields.CharField(max_length=16,min_length=6,required=True) 41 email=fields.EmailField(required=True,max_length=32) 42 ''' 43 ''' 44 class UserInfo(models.Model): 45 username=models.CharField(max_length=32) 46 email=models.EmailField(max_length=32) 47 向数据库中添加数据用如下方法： 48 models.UserInfo.objects.create(**obj.cleaned_data) 49 此外要注意对应的html网页中相应的变量也需要同时进行更改，保持一致 50 ''' 51 models.UserInfo.objects.create(**obj.cleaned_data) 52 return redirect('/users/') 53 else: 54 return render(request, 'add_user.html', {'obj': obj}) 55 56 57 def edit_user(request,nid): 58 if request.method=='GET': 59 # nid=request.GET.get('nid') 60 data=models.UserInfo.objects.filter(id=nid).first() 61 obj=FormUser({'username':data.username,'email':data.email}) 62 return render(request,'edit_user.html',{'obj':obj,'nid':nid}) 63 else: 64 obj=FormUser(request.POST) 65 if obj.is_valid(): 66 models.UserInfo.objects.filter(id=nid).update(**obj.cleaned_data) 67 return redirect('/users/') 68 else: 69 return render(request,'edit_user.html',{'obj':obj,'nid':nid})
三、MODLES创建类
1 #Author:lee 2 from django import forms 3 from django.forms import fields 4 5 6 class FormUser(forms.Form): 7 username=fields.CharField(max_length=16,min_length=6,required=True) 8 email=fields.EmailField(required=True,max_length=32)
四、PYTHON-HTML（显示-添加-编辑）
4.1显示页面
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Title</title> 6 </head> 7 <body> 8 <a href="/add_user/">添加</a> 9 <ul> 10 {% for row in user_list %} 11 <li>{{row.id}}--{{ row.username }}-{{row.email}}<a href="/edit_user-{{ row.id }}/">编辑</a></li> 12 {% endfor %} 13 </ul> 14 </body> 15 </html>
页面效果显示：
4.2添加页面
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Title</title> 6 </head> 7 <body> 8 <form action="/add_user-{{ nid }}/" method="post" novalidate> 9 <p>{{obj.username }}{{ obj.errors.username.0}}</p> 10 <p>{{obj.email }}{{ obj.errors.email.0 }}</p> 11 <input type="submit" value="提交"> 12 </form> 13 </body> 14 </html>
点击上图 “添加按钮”’ 页面效果显示：
4.3编辑页面
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Title</title> 6 </head> 7 <body> 8 <form action="/edit_user-{{ nid }}/" method="post"> 9 <p>{{ obj.username }}{{ obj.errors.username.0 }}</p> 10 <p>{{ obj.email }}{{ obj.errors.email.0 }}</p> 11 <input type="submit" value="submit"> 12 </form> 13 </body> 14 </html>
页面效果显示：
五、创建表
1 from django.db import models 2 3 # Create your models here. 4 class UserInfo(models.Model): 5 username=models.CharField(max_length=32) 6 email=models.EmailField(max_length=32)