pagy

pagy is a Ruby gem designed for efficient pagination. It aims to provide a fast and lightweight solution for displaying paginated data in web applications, particularly within the Ruby on Rails framework. The gem focuses on performance by minimizing database queries and avoiding the overhead of loading entire collections into memory. It achieves this by utilizing database-specific features for fetching only the required subset of records for each page.

Key features of pagy include its speed and minimal memory footprint. Unlike some other pagination libraries, pagy avoids loading all records and then slicing them, which can be inefficient for large datasets. Instead, it calculates the necessary SQL to fetch only the data for the current page. The gem is also highly customizable, allowing developers to control various aspects of the pagination output, such as the number of items per page and the appearance of the pagination links. Its design emphasizes developer convenience with straightforward integration and clear API. pagy is a popular choice for developers seeking a performant and resource-friendly pagination solution for their Ruby applications.