11_django中表单的使用流程

Posted 2022-11-02 nichengshishaonian

目录

• django中表单使用流程

django中表单使用流程

1. 首先创建一个表单类，继承自django.forms.Form, 如创建一个注册表单 示例代码如下：

# 表单的简单使用
# 1. 在app 下新建一个文件forms.py, 名字随便，一般叫这个forms.py
from django import forms
class RegisterForms(forms.Form):
    username = forms.CharField(label='用户名', max_length=12, min_length=2)
    password = forms.CharField(label='密码', max_length=30, min_length=6, widget=forms.PasswordInput(attrs='placeholder': '请输入密码'), error_messages='min_length': '密码长度要不小于6位', 'max_length': '密码长度最大为30位')
    password_repeat = forms.CharField(label='请再次输入密码', max_length=30, min_length=6, widget=forms.PasswordInput(attrs='placeholder': '请再次输入密码'))
    email = form.EmailField(label='邮箱')


# 2. views.py
from django.shortcuts import render, redirect, reverse
from .models import User
from .forms import RegisterForms
def register(request):
    if request.method == 'GET':
        form = RegisterForms
        context = 'form': form
        return render(request, 'forms_test/register.html', context=context)
    elif request.method == 'POST':
        form = RegisterForms(request.POST):
        if form.is_valid():
            usernmae = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            password_repeat = form.cleaned_data.get('password_repeat')
            email = form.cleaned_data.get('email')
            if password == password_repeat:
                res = User.objects.get_or_create(name=username, password=password, email=email)
                if res[-1]:   # 成功注册用户返回 True
                    return redirect(reverse'login')   # 注册成功跳转到登录页面
                else:
                    return redirect(reverse('register'))  # 验证不通过重定向到注册页面
            return HttpRespose('注册失败, 再次输入的密码不一致')
        return HttpResponse('注册失败')

# register.html
<form action='' method="post">

</form>