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BCBianca Correiabiancacorreia.hashnode.devFeb 9 · 3 min read

What I Learned About Active Record Migrations in Ruby

In this exercise, I learned how to use Active Record migrations to build the structure of a database using Ruby. Instead of writing SQL directly, migrations allow us to describe our database tables an

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LGLuis Gustavo Ganimiluisgustavoganimi.hashnode.devNov 25, 2024 · 5 min read

Optimizing Database Performance in Ruby on Rails

As applications grow in scale, database performance often becomes a critical bottleneck. Ruby on Rails, with its ActiveRecord ORM, offers powerful tools to simplify database interactions. However, without proper optimizations, these conveniences can ...

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JPJulián Pinzón Eslavadev.julianpinzon.comNov 7, 2024 · 4 min read

Customising Single Table Inheritance mapping in Active Record

A few weeks ago I was working on modelling set of relationships between very similar concepts so I evaluated the different alternatives that Active Records provides for this; Abstract classes, Single Table Inheritance (STI) and Delegated Types. I end...

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RPRenan Portotota1099.hashnode.devOct 24, 2024 · 1 min read

Rails - Como transformar seus modelos para JSON

Vamos pensar no cenário em que eu possuo uma Model Customer e eu pretendo retorna-lá como JSON em alguma parte da minha aplicação: class Customer include ActiveModel::Model attr_accessor :id, :name validates :id, presence: true, numericality: ...

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LGLucian Ghindaallaboutcoding.ghinda.comJun 28, 2023 · 3 min read

Ruby's range literals and their effect on Rails Active Record queries

The following Active Record query: User.where(created_at: 1.day.ago...Time.current).to_sql will generate this SQL: SELECT "users".* FROM "users" WHERE "users"."created_at" >= '2023-06-21 06:38:26.330063' AND "users"."created_at" < '2023-0...

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DSDhaval Singhdsdev.inSep 6, 2021 · 1 min read

TIL #1 : How to pluck jsonb fileds in Rails

If you have a jsonb field in your Active record object and you want some nested value you can use pluck Example: Lets say your Users model has a jsonb attribuite metadata which has a nested key location which in turn has city you can get the value of...

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#active-record

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Trending tags this week

What I Learned About Active Record Migrations in Ruby

Optimizing Database Performance in Ruby on Rails

Customising Single Table Inheritance mapping in Active Record

Rails - Como transformar seus modelos para JSON

Ruby's range literals and their effect on Rails Active Record queries

TIL #1 : How to pluck jsonb fileds in Rails