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Ruby on Rails Interview Questions Series' Articles

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Cover image for The N+1 Query Problem

Jun 21

The N+1 Query Problem

#rails #database #performance #interview

2 min read

Cover image for How do you know you need a database index?

Jun 22

How do you know you need a database index?

#rails #performance #interview #database

3 min read

Cover image for What is a database transaction, and when do you reach for one in Rails?

Jun 22

What is a database transaction, and when do you reach for one in Rails?

#rails #database #postgres #activerecord

2 min read

Cover image for includes vs joins vs preload vs eager_load in Rails

Jun 22

includes vs joins vs preload vs eager_load in Rails

#rails #activerecord #performance #database

2 min read

Cover image for HABTM, has_many through, STI, and polymorphic associations in Rails

Jun 25

HABTM, has_many through, STI, and polymorphic associations in Rails

#rails #activerecord #associations #database

4 min read

Cover image for Fat controllers, fat models, and the layer MVC forgot

Jun 27

Fat controllers, fat models, and the layer MVC forgot

#rails #ruby #mvc #architecture

4 min read

Cover image for Stop putting side effects in Rails callbacks

Jun 27

Stop putting side effects in Rails callbacks

#rails #activerecord #ruby #architecture

3 min read

Cover image for How to add a NOT NULL column to a large table safely in Rails

Jun 27

How to add a NOT NULL column to a large table safely in Rails

#rails #postgressql #migrations #database

4 min read

Cover image for Scopes vs class methods in Rails

Jun 27

Scopes vs class methods in Rails

#rails #activerecord #ruby #database

3 min read

Cover image for validates vs validate in Rails

Jun 27

validates vs validate in Rails

#rails #ruby #validations #activerecord

3 min read

Cover image for Building a production-ready create endpoint in Rails

Jun 27

Building a production-ready create endpoint in Rails

#rails #api #restapi #backend

3 min read

Cover image for Pagination, filtering, and sorting in a Rails JSON API

Jun 27

Pagination, filtering, and sorting in a Rails JSON API

#rails #api #rest #backend

4 min read