python_frm组件

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)

View Code

 

四、PYTHON-HTML（显示-添加-编辑）

4.1显示页面

 1 
 2 "en">
 3 
 4     "UTF-8">
 5     
 6 
 7 
 8 "/add_user/">添加
 9 

10     {% for row in user_list %}
11         
{{row.id}}--{{ row.username }}-{{row.email}}"/edit_user-{{ row.id }}/">编辑
12     {% endfor %}
13 
14 
15 

View Code

页面效果显示：

4.2添加页面

 1 
 2 "en">
 3 
 4     "UTF-8">
 5     
 6 
 7 
 8 
"/add_user-{{ nid }}/" method="post" novalidate>
 9     
{{obj.username }}{{ obj.errors.username.0}}
10     
{{obj.email }}{{ obj.errors.email.0 }}
11     "submit" value="提交">
12 
13 
14 

View Code

点击上图    “添加按钮”’  页面效果显示：

 

4.3编辑页面

 1 
 2 "en">
 3 
 4     "UTF-8">
 5     
 6 
 7 
 8 
"/edit_user-{{ nid }}/" method="post">
 9     
{{ obj.username }}{{ obj.errors.username.0 }}
10     
{{ obj.email }}{{ obj.errors.email.0 }}
11 "submit" value="submit">
12 
13 
14 

View Code

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)

View Code

 

转载于:https://www.cnblogs.com/506941763lcj/p/10126008.html