Posts by Tag

• Database 15
• Migration 13
• 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

Database

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.

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Migration

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.

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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.

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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.

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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.

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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.

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JavaScript

How to use bun with rails?

less than 1 minute read

This article explains how to use Bun with Rails 7.1.

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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.

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Credentials

How to edit rails credentials?

less than 1 minute read

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

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CSV

How to read CSV with headers?

1 minute read

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

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Enum

How to validate enum in rails?

1 minute read

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

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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.

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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.

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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.

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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.

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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 ↑