Let’s imagine an app with a search page. This page displays some content unrelated to search and includes a form for users to search within the app. To avoid reloading the whole page, we decided to […]
There are many times when a user’s action requires updating a page without reloading it. In the past, this often meant writing custom JavaScript, but in Rails 7, it’s possible to use Hotwire and a bit […]
A veces, necesitamos responder a las requests direccionando a diferentes rutas según ciertas condiciones; como pueden ser, si el usuario está logueado o no, desde qué tipo de dispositivo está accediendo (desktop o mobile), o incluso […]
Rails nos ofrece validaciones básicas para poder controlar los valores que vamos a persistir en nuestra base de datos. Algunas de ellas son por ejemplo: uniqueness, presence, length, etc. Si en nuestro modelo Person tenemos 3 […]
In modern web applications, providing a smooth and responsive user experience is paramount. Infinite scrolling is a popular technique that loads content dynamically as the user scrolls, eliminating the need for traditional pagination controls. In this […]
If you use Ruby on Rails, you’ve probably had that moment of surprise when you realize Rails already provides a method that does exactly what you needed. But have you ever wondered what’s behind those methods? […]
In this article, we’re going to keep digging into the cool stuff that Turbo and Hotwire have to offer. This time we’re going to build a Planning Poker web application, enabling users to participate in estimation […]
You’ve finally decided to add RuboCop to your project. You add the gem, run the “rubocop” command for the first time, and get something like this: And now what?… What is an offense? What isn’t? Can you […]
When we have an object with a belongs_to relationship, we often use a select tag to list the data of the related entity. For example, we might have a select with all the available categories for a product […]
Every time I need information about a project, like the Rails/Ruby version, database adapter, RubyGems version, or JavaScript runtime, I start opening files and checking everything by hand 🫠. Today I learned there is a command […]
Today we’re discussing Cache Stampedes in Ruby on Rails and how to prevent them using :race_condition_ttl. What is a Cache Stampede? Imagine we have many applications (or threads) that need the same information from our database. We […]
When we add the belongs_to line to a model in Ruby on Rails, it introduces several helpful methods to manage associations. Some of them are pretty familiar to most of us, but others aren’t, so here’s a brief […]
When building a web application, security is crucial. While complex authentication systems like OAuth or Devise are almost always necessary for comprehensive security, there are scenarios where simpler methods are sufficient. One such method is HTTP […]
The routes.rb file is a crucial part of any Ruby on Rails development project. It’s essentially the map of our application, and keeping it organized is key. We usually start off with everything neat and tidy, organizing routes […]
In any software development process, automated tests are key to boosting code quality. RSpec, my favorite testing framework 😍, offers various configuration options to customize test output. In this article, we’ll explore how to enhance the […]
Ruby on Rails includes a variety of built-in validation options. However, some advanced features, such as grouping conditional validations using with_options, may still be unfamiliar to many. In this article, we aim to shed light on this […]
Avoid dealing with long and complex regular expressions to validate email addresses in your Ruby on Rails models. You can make your code cleaner and more straightforward by using URI::MailTo::EMAIL_REGEXP. The Custom RegEx Way While it’s possible […]
En el proyecto en el que trabajo a diario, comenzamos a recibir numerosas solicitudes falsas de la nada. Esto resultó en múltiples excepciones del tipo ActionController::RoutingError siendo logueadas en Rollbar (aplicación para trackeo de errores en tiempo real). Como consecuencia, […]
In Ruby on Rails app testing, accurate text matching is crucial for validating functionality, especially in system tests where you’re testing the app end-to-end. However, differences in whitespace formatting can cause unexpected failures, making tests fragile […]
In the world of Ruby on Rails, handling URL query strings becomes essential, particularly when building web applications that engage with external APIs or manage user input. When confronted with a URL housing a query string, […]
Ruby on Rails offers a useful feature called Counter Cache that refers to a column in the database that keeps track of how many associated records a model has. It’s particularly useful in scenarios where we […]
ActiveSupport::StringInquirer is a cool class in Ruby on Rails that comes in handy to deal with strings as boolean-like objects. It’s great for making conditional logic simpler and improving our code readability. When you wrap a string […]
While Ruby on Rails comes with smart defaults that usually do the trick, there might be moments when you feel like customizing how the has_many association reference behaves. Thankfully, you can easily do this by passing some options, […]
Did you know Ruby on Rails provides a couple of parameters for rails routes that will maximize your productivity? Let’s see how it works. Grep through Rails Routes You can grep through Rails routes with the `-g` option, […]
Were you aware of template variants in Ruby on Rails? It’s an option that the method render provides and can be used in our controllers to deal with customized layouts or views. Let’s see how it works with […]
The pluck method in Ruby on Rails provides a way to directly fetch specific columns from the database, returning the result as an array. This means that instead of retrieving full ActiveRecord instances with all their associated data […]
Ruby on Rails and Active Record offer a powerful feature that can enhance the efficiency of your code — default scopes for has_many associations. However, with every great power comes great responsibility so be extremely cautious with default […]
Ruby on Rails offers a wide range of tools and modules to make application development more efficient and structured. One of these modules is ActiveSupport::Configurable, which provides an elegant approach to handling configurations in our classes. What […]
Did you know you can jazz up your Rails console with custom methods? It’s super handy for those everyday tasks, like logging in or measuring how long it takes to execute a code block. To do […]
In the world of Ruby on Rails, we’ve got three cool methods for figuring out how big our collections are: “length,” “count,” and “size.” They each have their quirks, and knowing the scoop to keep your […]
In this article, we’re diving into the world of encrypting data at the application level with Active Record Encryption, one of the nifty features baked into Rails 7. So, what’s the scoop on Active Record Encryption? It’s […]
Making sure that attribute values are consistent is really important for handling and getting data efficiently. In Rails 7.1, ActiveRecord introduced a great feature — attribute value normalization — that makes it easier to keep your data standardized across your […]
In this article, we’re going to learn how to create an image slideshow using Ruby on Rails, Hotwire, and Tailwind CSS. We’ll also sync the navigation between the images across multiple windows. Our goal is to […]
Podemos encontrarnos con casos en nuestra aplicación de Rails en los que necesitamos excluir algunos conjuntos de registros al recuperar datos. En tales casos, podemos usar el método #excluding para filtrar los registros no deseados. El método #excluding llegó con […]
Offshore software development involves the practice of delegating software development tasks to a third-party company situated in a foreign country. This approach offers numerous advantages to businesses, such as access to a broader talent pool, substantial cost […]
Te compartimos una forma sencilla de encontrar consultas lentas a la base de datos sin necesidad de instalar gemas extras. Para ello, vamos a usar Active Support Instrumentation API para que, cada vez que una consulta a nuestra […]
En este artículo te voy a contar cómo podríamos resolver de manera muy sencilla el manejo de subdominios en una aplicación Ruby on Rails. El problema Imaginemos que desarrollamos una aplicación de venta de libros de recetas de “Cómo […]
Cuando trabajamos en un modelo en Rails y necesitamos agregar una validación uniqueness con case insensitive, por lo general seguimos estos pasos: 2. Agregamos la validación uniqueness al modelo con la opción case_sensitive en false : Eso parece ser la […]
Muchas veces tenemos que realizar varias operaciones en la BD y queremos que esas operaciones se comporten como si fuesen una sola. Es decir, si falla una de esas operaciones, queremos que se deshagan todas. Para lograr […]
Ruby es un lenguaje de programación sumamente expresivo, lo que significa que resulta muy fácil de leer y comprender. Esto lo podemos encontrar en la forma de escribir las clases, de invocar los métodos y en los […]
En este artículo veremos cómo encriptar datos a nivel de aplicación con Active Record Encryption, una de las features incorporadas en Rails 7. Active Record Encryption sirve para proteger información sensible en nuestra aplicación, como datos de […]
Por defecto, las rutas en Rails generan URLs utilizando los IDs de los registros de nuestra base de datos. Así, es común encontrar una URL como esta: Este formato de URL, donde se usa únicamente un […]
¿Sabías que let y let! no son lo mismo? A simple vista pueden parecerlo, pero no lo son y en este artículo te voy a explicar las principales diferencias. La respuesta corta es que let carga el […]
Today we’re discussing Cache Stampedes in Ruby on Rails and how to prevent them using :race_condition_ttl. What is a Cache Stampede? Imagine we have many applications (or threads) that need the same information from our database. We […]
