KM SOFT

Blog

Articles on Ruby, Rails, testing and software design.

  1. 4 approaches to handling service objects' returns

    ruby, software development

    Four ways a Ruby service object can return control to a Rails controller: exceptions, booleans, a class method with result readers, and Success/Failure objects.

  2. Sequence diagrams

    sequence diagrams, uml diagrams, ruby, software development

    Why sequence diagrams are a good way to communicate design ideas, and how to draw them on the fly during remote meetings with PlantUML: the basic syntax.

  3. How to keep rspecs DRY

    ruby, rspec, dry

    Refactoring repetitive RSpec specs step by step: moving lets into their contexts, and keeping class instantiation and the tested method call in one place.

  4. How to design a solid database for Rails application

    ruby, rails, database, postgresql

    Designing a Rails database upfront with not-null constraints, unique indexes and foreign keys, and why ActiveRecord validations alone cannot guarantee data integrity.

  5. Freelance full stack Ruby on Rails application development

    ruby, rails, freelance, angular, angularjs, application, web application, software development

    Building a Rails and AngularJS web application that charts gas and electricity smart meter readings for an employment agency: approach, process and screenshots.

  6. Verifying database schema in console

    ruby, rails, migrations, psql, postgresql, mysql

    PostgreSQL and MySQL console commands for inspecting a Rails application's database: listing databases and tables, describing a table, and when it helps.