Exploring Django's Model-View-Template(MVT) Architecture

Django is an open-source, high-level web development framework. Generally, Django follows a high-level architectural pattern known as the Model-View-Template (MVT) structure. 

Let's represent the Django MVT architectural structure pictorially. The pictorial representation provides a simplified explanation of how the MVT structure works in Django to provide a good web development experience.

Here is an overview of Django architectural components.

The Model layer:

In Django, models are represented as Python classes that subclass 'django.db.models.Model'. Generally, each model class maps to a single database table. 

The model works directly with the database. The model defines the data. It defines the behavior of the data. The model component provides means to structure and manipulate the data in the web application.

In conclusion, the model layer acts like a bridge, allowing one to interact with the database using the Python object.

Let's define a simple model and see how it functions.

class User(models.Model):
first_name = models.CharField(max_length=50)
last_name = models.CharField(max_length=50)

The class User maps to a database table, while each field (attribute of the class) of the model is first_name and last_name, each mapped as a column in the database table.

The View Layer:

The Django view component can be represented as a Python function or class. As a convention, the view is usually stored in the views.py file. The view component corresponds to the logic that processes web requests and generates responses.

In a nutshell, the view layer retrieves data from the model, renders it to the template, and also takes requests from the template that can modify data in the model or database.

Let's take a look at a simple view example.

def index(request):
return render(request, "index.html")

The view above is represented as a Python function that takes a request argument and finally returns an HTML page.

The Template layer:

The template layer is more like the presentation layer of the web application. It is the layer with which users interact. The template component is composed of static files like HTML, XML, CSS, Javascript, etc. Templates are rendered by views to generate HTML pages dynamically.

Django has a default template system called Django Template Language. The HTML files generated dynamically are usually embedded with the Django template language (DTL) syntax.

How these components work together when a request is made in Django.

When a request is made to a Django web application, the URL dispatcher routes the request to the specific view logic on the requested URL.

The view processes the request; if needed, it extracts data from the model database layer, manipulates the data if required, and renders it to the template.

The template receives the data from the view and generates dynamic HTML pages that combine with the data obtained from the view in the form of a Django templating language.

Finally, a response is sent back to the client, completing the request/response cycle.