• PHP vs Python vs Ruby on Rails: Detailed Comparison

    image

    Which is the best programming technology for web app development in the year 2020? This is one of the most debated questions among web programmers, students and companies (wanted to develop their own website). Actually, every language has its own pros, cons or advantages, disadvantages. It totally depends on your requirements for website development.

    In this blog post, I am going to clear your many doubts related to these programming languages or technologies, so that you can choose the best language according to your specific needs and requirements. Here, I’ll do a detailed and comprehensive comparison between these three most popular programming technologies viz. PHP vs Python vs Ruby (RoR). The comparison is on the basis of various stats and data on different parameters. So, let’s start the battle of most popular programming languages ie: PHP vs Python vs Ruby (RoR).
    Read more →
    • –12
    • 865
    • 5
  • Basic gems list for profiling Ruby on Rails application

    Even most of the experienced Ruby on Rails developers sometimes forgot about annoying mistakes they produce in the long development processes, like n+1 queries or lose a lot of time with some unexpected queries from nowhere.

    Not all these mistakes can be avoided before the production, but at least you can try :)

    Yes, that’s another list of forgotten or not so popular gems for the better development processes.
    Let’s begin.
    Read more →
  • ANPR using RoR & React Native

    Danny Krastev, Mirabbos Umarov, Ekaterina Menshenina, ITMO University, Info communication Systems, Computer Science. 2019

    image

    Abstract


    Due to the never-ending increase in volume of vehicles surrounding our daily lives, Automatic Number Plate Recognition (ANPR), has become an evolving solution for managing and monitoring vehicles worldwide to enforce rules and prevent criminal activities, such as parking violation, red light violation, speeding, and vehicle theft. Although there is already a variety of public and private methods and libraries that have been developed and are used to achieve the automatic recognition of car license plate numbers around the world, there has not been much focus on making advancements toward a cross platform ANPR solution that supports all vehicle license plates worldwide. This paper introduces the Plate Vision project, a web and mobile application built on Ruby on Rails and React Native, which aims to serve as an alternative ANPR platform that supports detection of all license plates worldwide by utilizing various open source optical character recognition (OCR) libraries and making efficiency optimizations.

    Key words and phrases: ruby, rails, react native, license plate recognition, plate region extraction, optical character recognition (OCR), ANPR.
    Read more →
  • Optimisations for PostgreSQL serving Rails application

    As Senior Software Engineer at company building messaging platform for healthcare industry I am responsible, including other duties, for performance of our application. We develop pretty standard web-service using Ruby on Rails application for business logic and API, React + Redux for users' facing single page application, as database we use PostgreSQL. Common reasons for performance problems in similar stacks are heavy queries to database and I would like to tell the story how we applied non-standard but fairly simple optimisations to improve performance.


    Our business operates in US, so we have to be HIPAA compliant and follow certain security policies, security audit is something that we are always prepared for. To reduce risks and costs we rely on a special cloud provider to run our applications and databases, very similar to what Heroku does. On one hand it allows us to focus on building our platform but on the other hand it adds an additional limitation to our infrastructure. Talking shortly — we cannot scale up infinitely. As a successful startup we double number of users every few month and one day our monitoring told us that we were exceeding disk IO quota on the database server. Underlying AWS started throttling which was resulting in a significant performance degradation. Ruby application was not capable to serve all incoming traffic because Unicorn workers were spending too much time awaiting for database's response, customers were unhappy.

    Read more →