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Counting things in Active Record

May 28, 2022
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 |  Ruby on Rails

The count method Ruby implements its own count method, which counts the number of elements in the given array. However, ActiveRecord::Relation class implements its own implementation […]

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How to quickly familiarize with any legacy Rails app

May 21, 2022
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 |  Ruby on Rails

Ruby on Rails is a mature technology, and probably that’s why many people say that it’s a dead technology. But […]

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World beyond Rails – web frameworks

May 11, 2022
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 |  Ruby on Rails

Even though Ruby owes most of its popularity to the Ruby on Rails framework, many other great frameworks and libraries […]

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Extending Ruby classes

May 11, 2022
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 |  Ruby on Rails

Without the modules, you would have to rely on inheritance to organize your code and make it more reusable. Such […]

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RSpec command line

May 5, 2022
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 |  Ruby on Rails

Given we have the following Person class: class Persondef initialize(age:)@age = ageend def [email protected] > 17endendAnd equally simple test in […]

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Design Rails enums the right way

April 30, 2022
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 |  Ruby on Rails

Enum is a shortcut for the enumerated type, a data type consisting of a set of values. Rails provides enums […]

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Common issues with CSV parsing and solutions to them

March 27, 2022
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 |  Ruby on Rails

Fixing performance issues Problem: you are parsing a large CSV file, and it takes a lot of time to process […]

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Introduction to RSpec

March 27, 2022
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 |  Ruby on Rails

RSpec installation RSpec is available as a gem, but it’s a meta-gem, which means that it depends on other gems. […]

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Five things you did not know about Rails transactions

March 23, 2022
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 |  Ruby on Rails

You can easily take down your database with not properly designed transaction When you wrap the code inside the transaction […]

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Under the hood of the includes method in Rails

March 22, 2022
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 |  Ruby on Rails

The way the includes method work in Active Record is one of the most common questions during interviews, yet many […]

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