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ruby on rails

A collection of 21 posts

Rails Associations

Rails Associations

An association is a connection between two Active Record models. It makes much easier to perform various operations on the records in your code. We will divide associations into four categories: 1. One to One 2. One to Many 3. Many to Many 4. Polymorphic One to Many If you

Ruby Programming: Beginner's Guide [2018 update]

ruby for beginners

Ruby Programming: Beginner's Guide [2018 update]

We are writing this brief tutorial on how to easily get into Ruby programming language and Ruby on Rails framework so our community can grow with new developers. First thing first. Ruby on Rails framework is based on Ruby programming language, and the learning should start from learning Ruby. Before

Rails 5 Change Database Column

Rails 5 Change Database Column

While working on a Rails application, we all have had to change the database column in some way. You can change the column name and the column type, as well as changing the column with the type conversion. Changing the Column Name Before we can change a column, we have

Rails Debugging

Rails Debugging

Even the best Rails developers in the world have to debug their code from time to time. Unlike other frameworks, Rails makes it easy to debug your code, so you can limit your downtime and get your applications up and running. Debugging has never been easier!

Rake DB Commands

Rake DB Commands

Rake is a utility built into Ruby and Rails, which provides an efficient way for managing database changes. You can easily migrate database changes to servers by only using a command line! You might be asking yourself during your application development: * What happens when using rake database commands? * When should

Rails respond_to block Explained

Rails respond_to block Explained

When you start your first Rails application you might think that controller actions are only capable of rendering HTML. So why and how to use a respond_to block? Here, we will show you how handy respond_to blocks can be. respond_to The first step is to create a

Factory Girl (Bot) Associations

Factory Girl (Bot) Associations

In this article we will go through how to generate the data for has_one, has_many and polymorphic associations using FactoryGirl. Every association will be described with an example, so you can get the idea how to create more complex factories with no pain. Generating the data for has_

RSpec Rails Controller Test

RSpec Rails Controller Test

Rails is a web development framework, where model, view and controller are important aspects of your application. Controllers, just like models and viewers, need to be tested with Ruby communities favorite tool, RSpec. Controllers in Rails accept HTTP requests as their input and deliver back and HTTP response as an

Rails Capybara Setup

Rails Capybara Setup

Capybara is a web-based automation framework tool for testing Rails apps. It helps you to create functional tests that simulate how users would interact with your application through the browser. It is a fantastic tool for testing your application through the browser! Capybara doesn't interact with the website, it's just

Rails Bundle Install and Gemfile

Rails Bundle Install and Gemfile

Bundler makes sure that Ruby applications always use the exact gems and versions that you need while keeping a consistent environment and gem dependencies satisfied. This is done by ensuring that the gems you need are present in the development, staging and the production. Setting up a Bundler With this

FactoryGirl (Bot) - create vs build vs build_stubbed

FactoryGirl (Bot) - create vs build vs build_stubbed

If you are new to writing RSpec tests in Rails using FactoryGirl (bot), you can ask yourself what is the difference between create, build and build_stubbed. In this article, we will do our best to help you understand them better. Let's say we are testing a valid profile creation:

Rails RSpec Setup

Rails RSpec Setup

RSpec is an awesome tool for testing Rails apps. It is a hugely popular BDD-oriented (Behavior Driven Development) testing framework in the Ruby community. It makes writing tests simpler, more expressive and easier to maintain! Getting started First, you'll need to install RSpec but you’ll also need Database Cleaner

Rails Scaffold

Scaffolding in Ruby on Rails refers to the auto-generation of a set of a model, views and a controller usually used for a single database table. For example, you can auto-generate a ready to use controller, model, and views with a full CRUD (Create, Read, Update, Delete) web interface for

RSpec Let Vs Before

RSpec Let Vs Before

In RSpec, there are two different ways to write DRY tests, by using before or let. Their purpose is to create variables that are common across tests. In this post, we will explore differences between before and let and explain why let is preferred by the Ruby community. let Let

Creating Rails Modals Using Bootstrap

Creating Rails Modals Using Bootstrap

Instead of writing your own JavaScript code for handling remote modals in your Rails application, it is a much simpler approach to implement it by using Bootstrap. In this tutorial, we will explain how to do it efficiently.

Top 10 Most Popular Programming Languages

programming language

Top 10 Most Popular Programming Languages

Nowadays, being a developer is like being a rockstar. Everyone wants to see what you came up with and hear your professional opinion. Developers maybe don't have groupies (or do they?) but they still have fun - doing the job in multiple, most popular programming languages. On the more serious

Rails Join Table Ultimate Tutorial

Rails Join Table Ultimate Tutorial

This is a complete tutorial for creating join table in Ruby on Rails. It will show how to generate and create a join table and how to address associations between different models. It will also show you how to write a form with multiple select boxes and how to handle

9 Ruby on Rails Blogs You Should Follow

9 Ruby on Rails Blogs You Should Follow

If you’re a Rails developer (or aspiring to become one), you know how important it is to stay up to date with all Ruby related news. It can sometimes even be overwhelming because there are so many sources of information online. It can be hard to determine which ones

Install Ruby on Rails on Ubuntu

Install Ruby on Rails on Ubuntu

Instructions on how to install Ruby on Rails on Ubuntu are pretty easy. You can copy paste following code and save it in the script and execute it. This way it will install everything in one go. Full installation of Ruby on Ubuntu usually takes around 10-15 minutes. If you

CarrierWave Upload Multiple Images [2018 Update]

CarrierWave Upload Multiple Images [2018 Update]

When you are building a web application, you definitely want to add an option for image uploading as well. In this tutorial, we will show you the necessary steps to enable upload multiple images/files using CarrierWave in Rails 4+ from scratch. A similar procedure can be applied for nested

Ruby on Rails Code Quality

Ruby on Rails Code Quality

In this article, we will point out steps on what can you do in order to improve your code quality in Ruby on Rails apps that you are building. Follow up Ruby style guide Yes, let’s start with the basics. You can read community-driven Ruby style guide at https: