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rails

109 posts tagged rails, newest first.

rubyrailswebdev

How to keep clean Ruby on Rails views with the Null Object pattern

One of the most common errors developers encounter is NoMethodError. It occurs when code is executed according to a script not provided by the programmer.

railsrubywebdev

Custom templates for Rails scaffolding

Rails has a very handy tool for rapid development called scaffolding. Often programmers ignore it, because some things have to be written by hand anyway.

railsrefactoringcallback

How to avoid callbacks using services.

Often, programmers abuse callbacks, not fully understanding that their code will ultimately be confusing and non-obvious.

rubyrailswebdev

Data migrations with Rails

Data migration is a common part of working with databases, and Ruby on Rails developers have many tools at their disposal.

rubywebdevrails

How to use Ruby on Rails Concerns

A Rails concern is a module that extends the ActiveSupport::Concern module.

railsrubydatabase

What is the difference between joins and includes in Rails ActiveRecord?

The main difference is that when using includes the eager loading is used.

railsrubywebdev

Preview UI changes with Ruby on Rails variants

Here's one of the simplest ways to do it without introducing complex feature switching mechanisms.

rubyrailswebdev

How to get & build full URLs in Rails

There are some cases when you want to get a current request absolute URL.

rubyrailspython

How to use a Transaction Script(aka Service Objects) in Ruby on Rails. Simple example

The logic of small applications can be present as a series of transactions.

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