How to Set Initial Values in Django Model Form?
Hi Dev,
Are you looking for example of how to set initial values in django model form. We will use django form initial values from model. you will learn django form set initial value. you can see django set value to model field.
Here, this initial value is automatically triggered when the user accessing the form HTML page.
Here i will give you we will help you to give example of django form initial values from model. So let's see the bellow example:
Step 1: Create a ProjectIn this step, we’ll create a new django project using the django-admin. Head back to your command-line interface and run the following command:
django-admin startproject myproStep 2: Create an App
Now we'll create a single app called core to store a list of post names. We're keeping things intentionally basic. Stop the local server with Control+c and use the startapp command to create this new app.
cd example django-admin startapp coreStep 3: Update setting.py
Then update INSTALLED_APPS within our settings.py file to notify Django about the app.
settings.py
....
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'core', #new
]
Step 4: Create a Model
In this step we will require the database model for storing contacts.Open the core/models.py file and add the following code:
core/models.py
from django.db import models
# Create your models here.
class Article(models.Model):
title = models.CharField(max_length=200)
body = models.TextField()
Ok, all set. We can engender a migrations file for this change, then integrate it to our database via migrate.
python manage.py makemigrations python manage.py migrateStep 5: Create a Form
In this step We need to create a form that will be used .like add a bootstrap class and validation etc.. plus we need to add custom styling.
core/forms.py
from django import forms
from django.db.models import fields
from django.forms import ModelForm
from .models import *
class ArticleForm(forms.ModelForm):
class Meta:
model = Article
fields = '__all__'
Step 6: Creating the Views
In this step, we need to configure views. open the core/views.py file and add.
core/views.py
from rest_framework.views import APIView
from django.http import JsonResponse
from .forms import ArticleForm
from django.shortcuts import render
def home(request):
intaial_data = {
'title': 'Django',
'body': 'Django Example'
}
form = ArticleForm(initial=intaial_data)
mydict = {
'form': form
}
return render(request, 'index.html', context=mydict)
Step 7: Creating the Templates
Next, then with your text editor create new templates files: core/templates/index.html file and the add:
core/templates/index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title></title>
</head>
<body>
<form>
{{ form.as_p }}
</form>
</body>
</html>
Step 8: Creating URLs
In this section, we need a urls.py file within the core app however Django doesn't create one for us with the startapp command. Create core/urls.py with your text editor and paste below code.
core/urls.py
from django.urls import path
from . import views
urlpatterns = [
path('', views.home),
]
Next, we require to add a URL path for our core app which can be done by importing include and setting a path for it.
mypro/urls.py
from django.contrib import admin
from django.urls import path, include
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('core.urls')),
]
Run the Server
In this step, we’ll run the local development server for playing with our app without deploying it to the web.
python manage.py runserver
Next, go to the http://localhost:8000/ address with a web browser.
I Hope It will help you....