Ruby on Rails Validations

Ruby on Rails validations are checks that ensure data entered into a web application meets certain rules before being saved. They help maintain data quality by confirming, for example, that required fields are filled out, email addresses are correctly formatted, or passwords are strong enough. If data fails validation, the system prevents saving and provides feedback to the user. This process helps keep the database reliable and consistent, reducing errors and improving user experience. Validations are a fundamental part of Rails’ framework for building robust, error-resistant applications.