Django Pyblog 🚁

Django blog - ElasticSearch + MySQL + Redis 🚀

Why?

• Most of us use wordpress 🥱 for blogs (so do I: https://pyblog.xyz). The search operation in wordpress takes forever, because it's a simple column like '%<complete input string>% 🤕
• To perform faster search operations on tags, categories and other key-words. While it can be achieved with Relational and other NoSQL data stores, Elastic Search is the best when it comes to SEARCH 😎

Installation ElasticSearch (MacOS)

• Tap the Elastic Homebrew repository: brew tap elastic/tap
• brew install elastic/tap/elasticsearch-full
• pip install elasticsearch-dsl

Start the Server

• cd /usr/local/var/homebrew/linked/elasticsearch-full/bin
• ./elasticsearch To start ES from GUI, follow: https://opensource.com/article/19/7/installing-elasticsearch-macos

Test ES Set-up

• curl -XGET http://localhost:9200 Expected Response (Similar):

{
    "name": "PP-C02Z66CALVCG.local",
    "cluster_name": "elasticsearch_adesh.nalpet",
    "cluster_uuid": "E_543bFmSUqO7dXwzjE1WQ",
    "version": {
        "number": "7.8.1",
        "build_flavor": "default",
        "build_type": "tar",
        "build_hash": "b5ca9c58fb664ca8bf9e4057fc229b3396bf3a89",
        "build_date": "2020-07-21T16:40:44.668009Z",
        "build_snapshot": false,
        "lucene_version": "8.5.1",
        "minimum_wire_compatibility_version": "6.8.0",
        "minimum_index_compatibility_version": "6.0.0-beta1"
    },
    "tagline": "You Know, for Search"
}

Installation Redis (MacOS)

• brew install redis
• brew services start redis or redis-server /usr/local/etc/redis.conf
• pip install django-redis

Test Redis Set-up

• redis-cli ping

For details on how to set-up a django project with best practices: https://pyblog.xyz/django-initial-setup/

Settings

• Update ES and Redis - host and port in settings.py

ELASTICSEARCH_DSL = {
    'default': {
        'hosts': 'localhost:9200'
    },
}

CACHES = {
    "default": {
        "BACKEND": "django_redis.cache.RedisCache",
        "LOCATION": "redis://127.0.0.1:6379/1",
        "OPTIONS": {
            "CLIENT_CLASS": "django_redis.client.DefaultClient"
        },
        "KEY_PREFIX": "pyblog"
    }
}

Updating the Index

• bulk indexing: search.bulk_indexing
• On every post_save: signals.py More details on Django Signals: https://pyblog.xyz/events-using-django-signals/

Template Used

Blog Home is a basic blog homepage HTML starter template for Bootstrap created by Start Bootstrap.

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Note: The project is obviously over-engineered, it's meant to give an example on how versatile Django can be 😋