It is an app or web service, with a collection of ready for use templates and tools, for constructing a website.

Is a database manager used in the Django framework. Implemented via classes and inheritance in python.

Python programming language

It is interpreted, build upon object-oriented approach, with dynamic semantics, and yes it s high-level programming language. Actively using for rapid development, scripting and gluing part of existing apps.

Is a high-level, open-source web framework for building web applications using the Python programming language. It follows the model-view-template (MVT) architectural pattern and is designed to facilitate rapid development while promoting clean, pragmatic design.

Is defined as a collection of related web pages that are typically identified by a common domain name and published on at least one web server. Websites can serve various purposes and can include anything from personal blogs to business sites, e-commerce platforms, or informational resources.

How do I use image and file fields?

Using a FileField or an ImageField in a model takes a few steps: 1) In your settings file, you’ll need to define MEDIA_ROOT 2) Add the FileField or ImageField to your model 3) All that will be stored in your database is a path to the file (relative to MEDIA_ROOT)

How do I make a variable available to all my templates?

Sometimes your templates all need the same thing. A common example would be dynamically generated menus. At first glance, it seems logical to add a common dictionary to the template context. The best way to do this in Django is to use a RequestContext

How can I see the raw SQL queries Django is running?

Make sure your Django DEBUG setting is set to True. Then import connection from django.db. connection.queries is only available if DEBUG is True. It’s a list of dictionaries in order of query execution. Each dictionary has the sql and time property.

How do I limit admin access so that objects can only be edited by the users who created them?

The ModelAdmin class also provides customization hooks that allow you to control the visibility and editability of objects in the admin. Using the same trick of extracting the user from the request, the get_queryset() and has_change_permission() can be used to control the visibility and editability of objects in the admin.

Create and configure a new app for Django

19.07.2024

15.04.2025

1 minute

Create a base Django project

Commands to create a Django app

We will start a new app, App1.


./manage.py startapp App1

In settings.py, register a new app.


INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'App1.apps.App1Config',
]

Commands to configure URLs

Connect the app’s URLs to project.


cd Project1/App1


touch urls.py

In a file urls.py


from django.urls import path
from .views import some

urlpatterns = [
    path('app/', some, name='some')
]

In a file views.py add:


def some(request):
    return render(request, 'App1/yourTemplate.html')

Create directories in Project1/App1


mkdir templates
mkdir templates/App1

Create an empty template.


touch template/App1/yourTemplate.html

Only one thing left, connect URLs in a file Project1/Project1/urls.py.


    from django.contrib import admin
    from django.urls import path, include
    
    urlpatterns += [
        path('', include('App1.urls')),
    ]

Commands to configure django model (optional)

In a file Project1/App1/models.py, create either your own model or my testing one:


from django.db import models

class AppModel(models.Model):
    title = models.CharField(max_length=120)
    description = models.TextField()

    def _str_(self):
        return self.title

Let’s register our model in Project1/App1/admin.py for access via the admin panel on the website.


from django.contrib import admin
from .models import  AppModel

class AppModelAdmin(admin.ModelAdmin):
    list_display = ('title', 'description')

admin.site.register(AppModel, AppModelAdmin)

Applying migrations:


./manage.py makemigrations
./manage.py migrate

If you want to use default Django admin, you need to create a superuser. Jusk like that:


./manage.py createsuperuser

Create a new, basic Django project

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Used termins

Website builder ⟶ It is an app or web service, with a collection of ready for use templates and tools, for constructing a website.
Django model ⟶ Is a database manager used in the Django framework. Implemented via classes and inheritance in python.
Python programming language ⟶ It is interpreted, build upon object-oriented approach, with dynamic semantics, and yes it s high-level programming language. Actively using for rapid development, scripting and gluing part of existing apps.
Django framework ⟶ Is a high-level, open-source web framework for building web applications using the Python programming language. It follows the model-view-template (MVT) architectural pattern and is designed to facilitate rapid development while promoting clean, pragmatic design.
Website ⟶ Is defined as a collection of related web pages that are typically identified by a common domain name and published on at least one web server. Websites can serve various purposes and can include anything from personal blogs to business sites, e-commerce platforms, or informational resources.