Deleting a record Step 1To delete a record in the database, we must use the delete() method. Removing items is easier than changing items, because the method is the same for a queryset as for the instances of models. An example of this is as follows from myproject.models import UserProfile...

Updating a model instance Step 1Updating the existing data is very simple. We have already seen what it takes to be able to do so. The following is an example where it modifies the first profile: from myproject.models import UserProfile profile = UserProfile.objects.get(id = 1) profile.name = 'Updateing profile' profile.save()...

Step 1 We can create the records in the UserProfile model as follows: from myproject.models import UserProfile profile = UserProfile(name='New Profile', login='newprofile') profile.save() Step 2 : The code template {% extends "base.html" %} {% block title %} {{ action }} {% endblock %} {% block h1 %} {{ action }}...

Before using Django to retrieve data from a database, we were using SQL queries to retrieve an object containing the result. With Django, there are two ways to retrieve records from the database depending on whether we want to get back one or several records. Getting multiple records Step 1...

The administration module is very convenient and is included by default with Django. It is a module that will maintain the content of the database without difficulty. This is not a database manager because it cannot maintain the structure of the database. Installing the module Step 1 : The django.contrib.admin...

Databases and Django Django can interface with many databases. However, during the development of our application, we use SQLite libraries that are included in Django. Step 1 : We will modify settings.py to set our connection to the database: DATABASES = { 'default': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': BASE_DIR / 'db.sqlite3',...

Static files such as JavaScript files, CSS, or images are essential to obtain an ergonomic website. These files are often stored in a folder, but they can be useful to modify this folder under development or in production. Step 1 : Django allows us to define a folder containing the...

The legacy of templates allows you to define a super template and a subtemplate that inherits from the super template. In the super template, it is possible to define blocks that subtemplates can fill. We will use an example where the page.html template will extend the base.html template. Step 1...

Django 3 : Passing Variables to the template Injecting the data from the view to the template Before improving our template, we must send variables to the templates. The injection of the data is based on these variables, as the template will perform certain actions Step 1 : We will...

Templates are files that will allow us to generate the HTML code returned to the client. Step 1 : We will create the first template of our application. To do so, we must first edit the settings.py file to define the folder that will contain our templates. import os #...