Django Model Form

It is a class which is used to create an HTML form by using the Model. It is an efficient way to create a form without writing HTML code.

Django automatically does it for us to reduce the application development time. For example, suppose we have a model containing various fields, we don't need to repeat the fields in the form file.

For this reason, Django provides a helper class which allows us to create a Form class from a Django model.

Let's see an example.

Django ModelForm Example

First, create a model that contains fields name and other metadata. It can be used to create a table in database and dynamic HTML form.

// model.py

from __future__ import unicode_literals
from django.db import models

class Student(models.Model):
    first_name = models.CharField(max_length=20)
    last_name  = models.CharField(max_length=30)
    class Meta:
        db_table = "student"

This file contains a class that inherits ModelForm and mention the model name for which HTML form is created.

// form.py

from django import forms
from myapp.models import Student

class EmpForm(forms.ModelForm):
    class Meta:
        model = Student
        fields = "__all__"

Write a view function to load the ModelForm from forms.py.

//views.py

from django.shortcuts import render
from myapp.form import StuForm

def index(request):
    stu = EmpForm()
    return render(request,"index.html",{'form':stu})

//urls.py

from django.contrib import admin
from django.urls import path
from myapp import views
urlpatterns = [
    path('admin/', admin.site.urls),
    path('index/', views.index),
]

And finally, create a index.html file that contains the following code.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Index</title>
</head>
<body>
<form method="POST" class="post-form">
        {% csrf_token %}
        {{ form.as_p }}
        <button type="submit" class="save btn btn-default">Save</button>
    </form>
</body>
</html>