Question

如何将错误值设置到文本字段中，现在它只显示字段上方的错误，我想在我的文本字段中显示

实际显示：

我的目标：

forms.py

from django import forms            
from django.contrib.auth.models import User   
#from models import StudentRegistration
from django.forms import ModelForm
from promSpace.models import Space
from StudentUsers.models import StudentRegistration
from django.contrib.auth.forms import UserCreationForm  



class MyRegistrationForm(forms.ModelForm):
    password = forms.CharField(widget=forms.PasswordInput)
    password2 = forms.CharField(widget=forms.PasswordInput)
    prom_code = forms.CharField(max_length = 8)
    email = forms.EmailField(max_length=50)


    def clean_email(self):
        email = self.cleaned_data['email']
        if StudentRegistration.objects.filter(email = email).exists():
            raise forms.ValidationError("Email already exists")
        return email


    def clean_password2(self):
        password = self.cleaned_data.get('password')
        password2 = self.cleaned_data.get('password2')
        if password and password2:
            if password != password2:
                raise forms.ValidationError(("The two password fields didn't match."))
            elif password == '' or password2 == '':
                raise forms.ValidationError(("The password cannot be blank"))
        return password2


    def clean_prom_code(self):
        prom_code = self.cleaned_data['prom_code']
        prom_code_ver = Space.objects.filter(prom_code = prom_code)
        if prom_code_ver.exists():
            return prom_code
            StudentRegistration.prom_name = prom_code_ver.prom_name
        else:
            raise forms.ValidationError(("The Prom Code Does not exist"))


    class Meta:
       model = StudentRegistration
       fields = ('email', 'first_name', 'last_name','gender','prom_code','password')

register.html

<!DOCTYPE html>

<html>

    <head>
    <title></title>
    </head>


<body>

    <h1>Register</h1>
    <form action="/register/" method="post">

    {% csrf_token %}
    <div>{{form.as_p}}</div>

    <input type="submit" value="Register" />

    </form>

    </body>

我真的不知道如何开始，我一直在寻找django文档，我唯一能找到的是{{form.field.value | default_if_none：＆＃34;＆＃ 34; }}

Answer 1

您在寻找Flash消息系统吗？您可以使用视图中的以下内容显示Flash消息：

messages.error(request,"Changes were not saved.")

在模板中：

{% if messages %}
<ul class="messages">
{% for message in messages %}
<li{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }} /li>
{% endfor %}
</ul>
{% endif %}

Django - 在表单的texfield中显示错误（ValidationError）

1 个答案: