Connection Method of Django to PostgreSQL

Programming with Django is one of the popular ways to develop websites and applications under the web. Generally, databases play a very important role in Django projects and one of the preferred and efficient databases for use with Django is PostgreSQL. This database is a good choice because of its powerful features and various capabilities that it provides.

To connect a Django project to PostgreSQL, you first need to prepare some prerequisites. You will need to have PostgreSQL installed on your system and also the psycopg2 tool, which is a connector for connecting to PostgreSQL through the Python language, installed. After that, you can configure the database settings in the Django project configuration file.

First, you need to install psycopg2. For this, you can use pip, the Python package manager. You can perform this task with the following command:

pip install psycopg2-binary

After that, start configuring the database in the Django project. You need to edit the settings.py file and include the information related to your database. These configurations include the database name, username, password, and server host.

DATABASES = {\r\n    'default': {\r\n        'ENGINE': 'django.db.backends.postgresql',\r\n        'NAME': 'yourdatabase',\r\n        'USER': 'yourusername',\r\n        'PASSWORD': 'yourpassword',\r\n        'HOST': 'localhost',\r\n        'PORT': '5432',\r\n    }\r\n}

Here, we will explain line by line about the configuration file settings and how to connect to PostgreSQL:

ENGINE <br> This section specifies which engine to use for connecting to the database. Here, we use postgresql to connect to the PostgreSQL database.

NAME <br> The name of the database that you want to connect to. This name is the name of the database that you created in PostgreSQL.

USER <br> The username that will be used to connect to the database. Usually, this username is the one defined during the installation or creation of the database.

PASSWORD <br> The password for the database user.

HOST <br> The host of the database service. If your database is on your local computer, you can use localhost.

PORT <br> The port of the database, which by default for PostgreSQL is 5432.