amakarudze / django-playground

Try our tips to optimize Django queries by yourself

Gitguardian Engineering Blog Playground

Welcome to this playground. You can test all tips of 10 tips to optimize PostgreSQL queries in your Django project using this repo.

Quickstart

Requirements

To run this playground, you'll need

• Pipenv
• Docker

Usage

1. Install virtualenv

You may need to install graphviz before

pipenv install -d

2. Setup your environment

Copy the example env file

cp .env.example .env

Edit .env by setting a PostgreSQL password and a Django Secret Key.

3. Activate your environment

pipenv shell

4. Start your PostgreSQL container

docker compose up -d

5. Open a notebook

./manage.py shell_plus --notebook

You are now ready to start ;)

Create DB dump

mkdir -p db_dump
pg_dump -h localhost -p $DATABASE_PORT -Fd $DATABASE_NAME -U $DATABASE_USER -Z0 -j 10 -f dumpdir
tar -cf - dumpdir | pigz > db_dump/dumpdir.tar.gz
cd db_dump
split -n 4 dumpdir.tar.gz dbdump --additional-suffix=.db.part

Load DB dump

cat db_dump/dbdump*.db.part > db_dump/dumpdir.tar.gz
mkdir -p dumpdir
pigz -dc db_dump/dumpdir.tar.gz | tar -C dumpdir --strip-components 1 -xf -
pg_restore -j 10 -Fd -O -h localhost -p $DATABASE_PORT -U $DATABASE_USER -d $DATABASE_NAME dumpdir