Online_migrations
Catch unsafe PostgreSQL migrations in development and run them easier in production (code helpers for table/column renaming, changing column type, adding columns with default, background migrations, etc).
Overview
OnlineMigrations is a powerful tool designed to enhance the safety of PostgreSQL migrations during the development phase while providing a seamless transition to production environments. With its functionality, developers can easily identify potentially dangerous migration operations that could lead to application errors or long blocking times, and it provides guidance on safer execution methods. This gem is particularly useful in larger projects where the stakes are higher, offering a reliable way to navigate the complexities of database migrations.
The motivation behind OnlineMigrations stems from the inherent dangers involved in writing migrations, as even experienced developers struggle with the intricacies of database locking and potential issues that arise from unsafe operations. With OnlineMigrations, developers can mitigate these risks by being alerted to dangerous actions and provided with helpful instructions and helpers to execute their migrations safely.
Features
- Danger Detection: Automatically identifies and flags potentially dangerous migration operations that could lead to significant application issues.
- Preventative Measures: By default, it prevents unsafe migrations from running, ensuring that developers can avoid critical pitfalls.
- Guidance and Helpers: Offers detailed instructions and assistance on safer ways to perform migrations, simplifying the process for developers even with less experience in PostgreSQL.
- Custom Checks: Allows users to add or disable specific checks tailored to their project's needs, providing flexibility in migration management.
- Compatibility: Requires Ruby 3.1+, Rails 7.1+, and PostgreSQL 12+, accommodating older versions for legacy projects.
- Background Migration Support: Designed to work smoothly with background data and schema migrations, adding robustness to migration processes.
- Error Messaging: When encountering a potentially dangerous migration, the tool displays relevant error messages, guiding developers on next steps to ensure safety.
- Ruby on Rails
Ruby on Rails, often referred to as Rails, is an open-source web application framework written in Ruby. Known for its convention over configuration and don't repeat yourself (DRY) principles, Rails simplifies and accelerates the development of database-backed web applications.