Posts by Tag

• Database 16
• Migration 14
• Random 1
• Range 1
• Ruby 1
• Notes 1
• JavaScript 1
• Hash 1
• Credentials 1
• CSV 1
• Enum 1
• Rake 1
• Rake Task 1
• PostgreSQL 1
• SQLite3 1
• MySQL 1
• Array 1
• Shuffle 1
• ActiveStorage 1
• Devcontainer 1
• SQL 1

Database

How to drop a table in rails?

less than 1 minute read

This article explains how to drop a table in rails - the recommended way.

How to change database adapter of a Rails application?

3 minute read

This article explains how to change the database adapter of a Rails application with a single command.

How to check if an index already exists in rails?

less than 1 minute read

This article explains efficient way to check if an index already exists on a table in rails.

How to check if a table already exists in rails?

less than 1 minute read

This article explains how to check if a table already exists in a table in rails.

How to check if a column already exists in rails?

less than 1 minute read

This article explains how to check if a column already exists in a table in rails.

How to add an index in rails?

less than 1 minute read

This article explains how to add an index in rails.

How to rollback N numbers of migration in rails?

less than 1 minute read

This article explains how to rollback N numbers of migration in rails.

How to change column null in rails?

less than 1 minute read

This article explains how to change a column null in rails.

How to reset the database for a rails application?

less than 1 minute read

This article explains how to reset the database for a rails application.

How to run migration on different environment in rails?

less than 1 minute read

This article explains how to run migrations on a different environment in rails.

How to run a specific migration in rails?

less than 1 minute read

This article explains how to run a specific migration in rails.

How to rollback a specific migration in rails?

less than 1 minute read

This article explains how to rollback a specific migration in rails.

How to change column default in rails?

less than 1 minute read

This article explains how to change a column default in rails.

How to rename a column in rails?

less than 1 minute read

This article explains how to rename a column in rails.

How to remove a column in rails?

less than 1 minute read

This article explains how to remove a column in rails.

How to create a table in rails?

1 minute read

This article explains how to create a table in rails including fields, references, polymorphic associations, index, and uniq index.

Back to Top ↑

Migration

How to drop a table in rails?

less than 1 minute read

This article explains how to drop a table in rails - the recommended way.

How to check if an index already exists in rails?

less than 1 minute read

This article explains efficient way to check if an index already exists on a table in rails.

How to check if a table already exists in rails?

less than 1 minute read

This article explains how to check if a table already exists in a table in rails.

How to check if a column already exists in rails?

less than 1 minute read

This article explains how to check if a column already exists in a table in rails.

How to add an index in rails?

less than 1 minute read

This article explains how to add an index in rails.

How to rollback N numbers of migration in rails?

less than 1 minute read

This article explains how to rollback N numbers of migration in rails.

How to change column null in rails?

less than 1 minute read

This article explains how to change a column null in rails.

How to run migration on different environment in rails?

less than 1 minute read

This article explains how to run migrations on a different environment in rails.

How to run a specific migration in rails?

less than 1 minute read

This article explains how to run a specific migration in rails.

How to rollback a specific migration in rails?

less than 1 minute read

This article explains how to rollback a specific migration in rails.

How to change column default in rails?

less than 1 minute read

This article explains how to change a column default in rails.

How to rename a column in rails?

less than 1 minute read

This article explains how to rename a column in rails.

How to remove a column in rails?

less than 1 minute read

This article explains how to remove a column in rails.

How to create a table in rails?

1 minute read

This article explains how to create a table in rails including fields, references, polymorphic associations, index, and uniq index.

Back to Top ↑

Random

How to get random number in ruby?

less than 1 minute read

This article explains how to generate random numbers in ruby between a specified range.

Back to Top ↑

Range

How to get random number in ruby?

less than 1 minute read

This article explains how to generate random numbers in ruby between a specified range.

Back to Top ↑

Ruby

nil? vs empty? vs blank? in ruby

less than 1 minute read

This article explains the difference between nil?, empty?, and blank? in ruby.

Back to Top ↑

Notes

How to check TODOs and FIXMEs in rails?

less than 1 minute read

This article explains how to check TODO’s and FIXME’s in a rails application.

Back to Top ↑

JavaScript

How to use bun with rails?

less than 1 minute read

This article explains how to use Bun with Rails 7.1.

Back to Top ↑

Hash

How to rename or transform keys in a hash?

less than 1 minute read

This article explains how to rename or transform keys in a hash.

Back to Top ↑

Credentials

How to edit rails credentials?

less than 1 minute read

This article explains how to edit environment-specific rails credentials.

Back to Top ↑

CSV

How to read CSV with headers?

1 minute read

This article explains how to read a CSV file with headers in Ruby.

Back to Top ↑

Enum

How to validate enum in rails?

1 minute read

This article explains how to effectively validate enums in your Ruby on Rails application.

Back to Top ↑

Rake

How to list all the rake tasks?

2 minute read

This article explains how to list all the rake tasks in an application, documented as well as undocuented.

Back to Top ↑

Rake Task

How to pass arguments to rake tasks?

less than 1 minute read

This article explains how to pass multiple arguments to the rake tasks.

Back to Top ↑

PostgreSQL

How to change database adapter of a Rails application?

3 minute read

This article explains how to change the database adapter of a Rails application with a single command.

Back to Top ↑

SQLite3

How to change database adapter of a Rails application?

3 minute read

This article explains how to change the database adapter of a Rails application with a single command.

Back to Top ↑

MySQL

How to change database adapter of a Rails application?

3 minute read

This article explains how to change the database adapter of a Rails application with a single command.

Back to Top ↑

Array

How to shuffle an array in ruby?

less than 1 minute read

This article explains how to shuffle an array in ruby.

Back to Top ↑

Shuffle

How to shuffle an array in ruby?

less than 1 minute read

This article explains how to shuffle an array in ruby.

Back to Top ↑

ActiveStorage

How to install ActiveStorage in a rails application.

1 minute read

This article explains how to install ActiveStorage in a Rails application and how to use it to upload files.

Back to Top ↑

Devcontainer

How to add devcontainer in rails?

less than 1 minute read

This article explains how to add devcontainer in rails.

Back to Top ↑

SQL

How to execute raw SQL in rails?

less than 1 minute read

This article explains how to write and execute raw SQL in rails.

Back to Top ↑