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django的Form

2024-09-16 03:13:07   207人阅读

django的Form组件

 

实例：

视图函数

from django import forms
from app01 import models
from django.forms import fields
class FM(forms.Form):
    user = fields.CharField(
        error_messages={
            ‘required‘:‘用户名不能为空‘
        })
    passwd = fields.CharField(
        max_length=12,
        min_length=6,
        error_messages={
            ‘required‘:‘密码不能为空‘,
            ‘max_length‘:‘密码长度不能大于12‘,
            ‘min_length‘:‘密码长度不能小于6‘
        })
    email = fields.EmailField(
        error_messages={
            ‘required‘:‘邮箱不能为空‘,
            ‘invalid‘:‘邮箱格式不正确‘
        })

def fm(request):
    if request.method == ‘GET‘:
        obj = FM()
        return render(request,‘fm.html‘,{‘obj‘:obj})
    elif request.method == ‘POST‘:
        obj = FM(request.POST)
        if obj.is_valid():
            print(obj.cleaned_data)               #返回的正确信息
            models.User.objects.create(**obj.cleaned_data)
            return HttpResponse(‘OK‘)
        else:
            print(obj.errors.as_json())           #返回的所有错误信息
            # print(obj.errors[‘user‘])
            return  render(request,‘fm.html‘,{‘obj‘:obj})

 

 

fm.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

    <form action="/fm/" method="POST">
        {% csrf_token %}
        <p>{{ obj.user }} {{ obj.errors.user.0 }}</p>
        <p>{{ obj.passwd }} {{ obj.errors.passwd.0 }}</p>
        <p>{{ obj.email }} {{ obj.errors.email.0 }}</p>
        <p><input type="submit" value=http://www.mamicode.com/"提交"></p>
    </form>
</body>
</html>

 

django的Form


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