View source for Add data into a model in Django

This will assume you have created a model for 'Products' from the previous tutorial.

=forms.py=
Within your app folder you should have a file called 'forms.py', if you haven't you need to create it.

You will need to import the following:

<syntaxhighlight lang=python>
from django import forms
from .models import Product
</syntaxhighlight>

You can then create a new class for your product form:

<syntaxhighlight lang=python>
class ProductForm(forms.ModelForm):
    name = forms.CharField(required=True)
    manufacturer = forms.CharField(required=True)
    description = forms.TextField(required=True)

    class Meta:
        model=Product
        fields = ['name','manufacturer','description']
</syntaxhighlight>

The 'ProductForm' class specifies data types and that some fields are required. The 'date_added' was set up to be automatic so no input is required.

The internal class 'Meta' binds the model to the form, and you can also specify which fields to show.

=views.py=
Now within your app folder we need to use 'views.py' to create a view for our add product form. We need to import your form and a few other functions, so add:

<syntaxhighlight lang=python>
from .forms import ProductForm
from django.contrib import messages
from django.shortcuts import redirect
</syntaxhighlight>

And then add the following method for the functionality:

<syntaxhighlight lang=python>
def addproduct(request):
    if request.method=='POST': # this means the form has data
        form = ProductForm(request.POST) # get the form and it data
            if form.is_valid(): # check if it is valid
                name = form.cleaned_data.get('name') # clean the data
                manufacturer = form.cleaned_data.get('manufacturer') # clean the data
                description = form.cleaned_data.get('description') # clean the data
                form.save() # save the data to the model
                messages.success(request, 'Your product has been added!')
                return redirect('\products')
            else: # form not valid so display message and retain the data entered
                form = ProductForm(request.POST)
                messages.success(request, 'Error in creating your product, the form is not valid!')
                return render(request, '/addproduct.html', {'form':form})
    else: #the form has no data
        form = ProductForm() #produce a blank form
        return render(request, '/addproduct.html', {'form':form})
</syntaxhighlight>

I have commented the key parts of the code above.

=urls.py=
Now in the 'urls.py' file in the project folder we need to add a new urlpattern. So add the following:

<syntaxhighlight lang=python>
path('addproduct/', myapp_views.addproduct, name='addproduct'),
</syntaxhighlight>

=addproduct.html=
In the 'templates' folder in the 'MyApp' app, create the following 'html' page:

<syntaxhighlight lang=html>
{% extends "MyApp/base.html" %}

{% block content %}
<h2>Add Product</h2>
<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Add<button>
</form>
{% endblock %}
</syntaxhighlight>

=Testing=
Run your server and visit your webapp, add '/addproduct' to the address bar to access your new add product page.