Django With POSTGRESQL in Ubuntu


The first step is to change the database engine in the application’s settings.py file:
'ENGINE': 'django.db.backends.postgresql_psycopg2'
Running python manage.py syncdb returned the following error:
Error loading psycopg module: No module named psycopg
I’ve tried installing the psycopg2 package, but that resulted in another error:
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application
The libpq-dev package had to be installed to meet all the dependencies:
sudo apt-get install libpq-dev
sudo pip install psycopg2
But still, the syncdb command wasn’t returning the desired result:
Peer authentication failed for user "someuser"
I needed to open up the file /etc/postgresql/9.1/main/pg_hba.conf in a text editor (with root privileges) and change this line:
local   all             all                                     peer
to this:
local   all             all                                     md5
I had to restart the PostgreSQL server to load the new settings:
sudo service postgresql restart
Now Django should have a proper connection with the PostgreSQL database.

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