Python Django Project Setup and Database Integration

Python Django Project Setup

Follow these steps to initialize and configure your Python Django environment.

Initial Environment Navigation

• Step 1: Open the Command Prompt and use cd.. to navigate back.
• Step 2: Use cd.. again to reach the desired root.
• Step 3: Navigate to your Python directory: cd Raj_Python.
• Step 4: Enter your project folder: cd mscit_dproject.

Creating the Project and Application

• Step 5: Create the project: django-admin startproject [Project Name].
• Step 6: Navigate into the project folder: cd [Project Name].
• Step 7: Create a new application: python manage.py startapp [App Name].
• Step 8: Open the project in VS Code and configure settings.py.

Configuring settings.py

In settings.py, import the OS module and define your template directory:

import os
TEMPLATE_DIR = os.path.join(BASE_DIR, 'templates')

Update the TEMPLATES and INSTALLED_APPS arrays:

TEMPLATES = [{'DIRS': [TEMPLATE_DIR], ...}]
INSTALLED_APPS = ['App Name']

Routing and Views Configuration

• Step 9: Configure the main urls.py file:

from django.urls import path, include
urlpatterns = [path('index/', include('APPNAME.urls'))]

• Step 10: Define the initial view in views.py:

def Index(request): return render(request, "APPName.html")

• Step 11: Create a new file named urls.py inside your application folder:

from django.urls import path
from . import views
urlpatterns = [path('appname/', views.appname, name='appname')]

Database Models and Migrations

• Step 12: Define your data structure in models.py:

class Student(models.Model):
  id = models.IntegerField(primary_key=True)
  fname = models.CharField(max_length=50)
  lname = models.CharField(max_length=50)
  age = models.IntegerField()

• Step 13: Execute migrations and start the server in the terminal:

python3 manage.py makemigrations
python3 manage.py migrate
python3 manage.py runserver

Access the admin panel at 127.0.0.1/admin. Create a superuser with the following details:

• Command: python3 manage.py createsuperuser
• Username: root
• Email: [email protected]
• Password: admin@123

Admin Registration and Data Rendering

• Step 14: Register the model in admin.py:

from .models import Student
class StudentAdmin(admin.ModelAdmin):
  list_display = ('id', 'fname', 'lname', 'age')
admin.site.register(Student, StudentAdmin)

• Step 15: Update views.py to fetch database records:

from .models import Student
def Index(request):
  s = Student.objects.all()
  context = {"list": s}
  return render(request, "firstapp/firstapp.html", context)

• Step 16: Create the firstapp.html template:

<h1>Hello World</h1>
{% for i in list %}
  {{ i.id }}
  {{ i.fname }}
  {{ i.lname }}
  {{ i.age }}
{% endfor %}

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