How to execute raw SQL in rails?
This article explains how to write and execute raw SQL in rails.
Posts by Category
Rails
How to drop a table in rails?
This article explains how to drop a table in rails - the recommended way.
How to add devcontainer in rails?
This article explains how to add devcontainer in rails.
How to install ActiveStorage in a rails application.
This article explains how to install ActiveStorage in a Rails application and how to use it to upload files.
How to change database adapter of a Rails application?
This article explains how to change the database adapter of a Rails application with a single command.
How to pass arguments to rake tasks?
This article explains how to pass multiple arguments to the rake tasks.
How to check if an index already exists in rails?
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?
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?
This article explains how to check if a column already exists in a table in rails.
How to list all the rake tasks?
This article explains how to list all the rake tasks in an application, documented as well as undocuented.
How to add an index in rails?
This article explains how to add an index in rails.
How to rollback N numbers of migration in rails?
This article explains how to rollback N numbers of migration in rails.
How to validate enum in rails?
This article explains how to effectively validate enums in your Ruby on Rails application.
How to change column null in rails?
This article explains how to change a column null in rails.
How to reset the database for a rails application?
This article explains how to reset the database for a rails application.
How to edit rails credentials?
This article explains how to edit environment-specific rails credentials.
How to rename or transform keys in a hash?
This article explains how to rename or transform keys in a hash.
How to use bun with rails?
This article explains how to use Bun with Rails 7.1.
How to check TODOs and FIXMEs in rails?
This article explains how to check TODO’s and FIXME’s in a rails application.
How to run migration on different environment in rails?
This article explains how to run migrations on a different environment in rails.
How to run a specific migration in rails?
This article explains how to run a specific migration in rails.
How to rollback a specific migration in rails?
This article explains how to rollback a specific migration in rails.
How to change column default in rails?
This article explains how to change a column default in rails.
nil? vs empty? vs blank? in ruby
This article explains the difference between nil?, empty?, and blank? in ruby.
How to rename a column in rails?
This article explains how to rename a column in rails.
How to remove a column in rails?
This article explains how to remove a column in rails.
How to create a table in rails?
This article explains how to create a table in rails including fields, references, polymorphic associations, index, and uniq index.
Ruby
How to shuffle an array in ruby?
This article explains how to shuffle an array in ruby.
How to read CSV with headers?
This article explains how to read a CSV file with headers in Ruby.
How to get random number in ruby?
This article explains how to generate random numbers in ruby between a specified range.
Rake
How to pass arguments to rake tasks?
This article explains how to pass multiple arguments to the rake tasks.