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Django框架学习笔记(25.Form组件验证)

2017-12-22 10:30 627 查看
简单的用户注册:

urls.py加入:

url(r'^fm/$', views.fm),


views.py:

from django import forms

class FM(forms.Form):
user = forms.CharField(error_messages={'required': '用户名不能为空'})
pwd = forms.CharField(
max_length=12,
min_length=6,
error_messages={'required': '密码不能为空', ' min_length': '密码长度不能小于6', 'max_length': '密码长度不能大于12'}
)
email = forms.EmailField(error_messages={'required': '邮箱不能为空', 'invalid': "邮箱格式错误"})

from app01 import models
def fm(request):
if request.method == "GET":
obj = FM()
return render(request, 'fm.html', {'obj': obj})
elif request.method == "POST":
obj = FM(request.POST)
r1 = obj.is_valid()
if r1:
models.UserInfo.objects.create(**obj.cleaned_data)
else:
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.pwd }} {{ obj.errors.pwd.0 }}</p>
<p>{{ obj.email }} {{ obj.errors.email.0 }}</p>
<input type="submit" value="提交"/>
</form>
</body>
</html>


运行后效果(这里Chrome自己加了验证功能,如果低级浏览器,就会显示定制的错误信息):

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