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Tuesday, January 11, 2022

Django Upload File

1 - Creating a new new app django studentsApp

It often happens that you want to add a file field to a registration or data insertion form ... So far we have not yet dealt with this type of field. the file field type can be treated either in isolation or within a model. To keep things simple, we will deal with this last type. Let's start by creating a mysite project in which we create an application named studentsApp

Next, let's create a directory named media within our mysite project. This folder must be configured within the file:

MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
MEDIA_URL = '/media/'
Next, let's configure the files of the studentsApp application: So that the media files or images... are accessible, we must add to the
file the following command:
+ static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) 
Thus our
file becomes:
from django.contrib import admin
from django.urls import path
from uploadFile import  views
from django.conf.urls.static import static
from . import settings

urlpatterns = [
    path('add_student/', views.student),
]+static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
Now we need to register our application at the

2 - Creating a model for studentsApp

Consider the Students model example that we have already covered in the django models tutorial, to which we add a file field that allows students to attach their photos during registration:
# studentsApp/
from django.db import models
class Students(models.Model):
    name        = models.CharField(max_length=25)
    email       = models.EmailField(max_length=40)
    phone    = models.IntegerField(max_length=40)
    section      = models.CharField(max_length=25)
    photo           = models.FileField(upload_to = 'photos')
upload_to = 'photos'
argument that we added tells django that the uploaded files should be saved in a folder named

. Do you have to manually create this directory? Well don't worry! Django will create it automatically when running the script. 

The necessary migrations are then carried out:

python makemigrations studentsApp
and then :
python migrate

3 - Creating an insert data form

We then create a file which will generate the form:
# studentsApp/
from django.forms import ModelForm
from studentsApp.models import Students

class StudentsForm(ModelForm):
    class Meta:
        model = Students
        fields = ['name' , 'email' ,'phone' ,'section' , 'photo']
The views: will then be created in the same way as in the previous tutorial concerning django models with the difference of adding a request.FILES parameter:

4 - Creating views for studentsApp
# studentsApp/
from django.http import HttpResponseRedirect
from django.shortcuts import render
from .forms import StudentsForm

def student(request):
    if request.method == 'POST':
        form = StudentsForm(request.POST, request.FILES)
        if form.is_valid():
            return HttpResponseRedirect('/student/')
        form = StudentsForm()
    return render(request, 'add_student.html', {'form': form})

5 - Building template for studentsApp

Finally, we just have to create the
template file without forgetting the parameter enctype="multipart/form-data" in the
<!DOCTYPE html>
<html lang="en">
    <meta charset="UTF-8">
<h2>Manage Students</h2>

<!-- Creating insert data form -->
<form enctype="multipart/form-data"  method="post">
{% csrf_token %}
{{ form.as_p }}
<button type="submit" class="save btn btn−default">Save</button>

<!-- Displaying data from the views -->
<h2>Students List</h2>
<table style="width:700px; border-style: solid; border-collapse: collapse;">
    <th>Name</th> <th>Email</th> <th>Phone</th> <th>Section</th> <th>Photo</th>

{% for stud in dataObject %}
     <td>{{ }}</td><td>{{ }}</td>
    <td>{{ }}</td> <td>{{ stud.section }}</td>
        <td><img src="media/{{ }}" width="75" height="75" /></td>
    {% endfor %}

Now if we start the server and type in the browser the url address: we get a student registration form with a file upload field: 


Younes Derfoufi

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