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<p> In Django, forms are one of the core tools for handling user input. It can help you verify data, render HTML forms, process error messages, and more. Here is a practical Django Forms example covering the complete process from defining forms to views and templates.
? 1. Create a simple form (forms.py)
<p> First, create theforms.py file in your Django application directory (if not already):百度 台盟中央非常重视民主党派年度调研工作。
# forms.py
from django import forms
class ContactForm(forms.Form):
name = forms.CharField(max_length=100, label='Your Name')
email = forms.EmailField(label='Email Address')
message = forms.CharField(widget=forms.Textarea, label='Message')<p> This form contains three fields: name, email, and message content. 
?? 2. Use form in view (views.py)
<p> Next, handle GET and POST requests inviews.py : # views.py
from django.shortcuts import render
from django.http import HttpResponse
from .forms import ContactForm
def contact_view(request):
if request.method == 'POST':
form = ContactForm(request.POST)
if form.is_valid():
# Process valid data (such as sending emails, saving to database, etc.)
name = form.cleaned_data['name']
email = form.cleaned_data['email']
message = form.cleaned_data['message']
# Here you can add save or send logic to return HttpResponse(f"Thanks {name}, we received your message!")
else:
form = ContactForm()
return render(request, 'contact.html', {'form': form})? 3. Create a template file (templates/contact.html)
<p> Render the form intemplates/contact.html : 
<!DOCTYPE html>
<html>
<head>
<title>Contact Us</title>
</head>
<body>
<h2>Contact Form</h2>
<form method="post">
{% csrf_token %}
{{ form.as_p }}
<button type="submit">Send</button>
</form>
</body>
</html>-
{{ form.as_p }}will automatically wrap each field with the<p>tag to output. -
{% csrf_token %}is a necessary tag for Django to prevent cross-site request forgery.
? 4. Configure URL routing (urls.py)
<p> Make sure your application and project are configured with the correct URL: # urls.py (in your app)
from django.urls import path
from . import views
urlpatterns = [
path('contact/', views.contact_view, name='contact'),
]<p> and include it in urls.py of the main project.? Form verification effect
- If the user submits an empty form or the mailbox is incorrect, Django will automatically display an error message.
- All validation is automatically done by the field rules defined in
forms.py.
?? Tips: Use ModelForm (Advanced)
<p> If you want the form to directly correspond to the database model, you can useModelForm : # models.py
class Feedback(models.Model):
name = models.CharField(max_length=100)
email = models.EmailField()
message = models.TextField()
created_at = models.DateTimeField(auto_now_add=True)
# forms.py
class FeedbackForm(forms.ModelForm):
class Meta:
model = Feedback
fields = ['name', 'email', 'message']<p> Then call form.save() in the view to save the data directly.
<p> Basically that's it. The power of Django Forms is: data verification, HTML rendering, and integrated error prompt processing , which is very suitable for rapid development of safe and reliable form functions.
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